The disclosure relates to queuing, specifically to the field of cloud-implemented automated callback systems.
Queues have been around for at least 185 years. With urbanization and population growth increasing the length of most queues by orders of magnitude in some situations. The design of the queue has changed ever-so-slightly, zig-zagging the line for example, but the basic queue remains relatively unchanged. That was up until virtual queuing came around in the form of paper tickets and more recently electronic pagers. However, these new modes require a queued person to remain within earshot of an announcement or within visual range of a monitor, in the case of paper tickets. In the case of pagers, a queued person is still limited in physical space by the range of the pager. Newer virtual queuing systems have been devised to use a person's mobile device, but still haven't really added much to queuing. These current solutions fail to efficiently facilitate or even address at all the complexity of multiple queues, punctuality concerns and no-shows, and simply does not take advantage of modern-day advantages such as “Big Data.”
What is needed is a system and method for virtual queuing that overcomes the limitations of the prior art as noted above by organizing and motivating multiple persons between multiple queues and taking full advantage of the breadth of data available to make predictions and organize queues.
Accordingly, the inventor has conceived and reduced to practice, a system and method for managing virtual queues. A cloud-based queue service manages a plurality of queues hosted by one or more entities. The queue service is in constant communication with the entities providing queue management, queue analysis, and queue recommendations. The queue service is likewise in direct communication with queued persons. Sending periodic updates while also motivating and incentivizing punctuality and minimizing wait times based on predictive analysis. The predictive analysis uses “Big Data” and other available data resources, for which the predictions assist in the balancing of persons across multiple queues for the same event or multiple persons across a sequence of queues for sequential events.
According to a first preferred embodiment, a system for enhanced virtual queuing is disclosed, comprising: a queue manager comprising at least a processor, a memory, and a first plurality of programming instructions stored in the memory and operating on the processor, wherein the first plurality of programming instructions, when operating on the processor, cause the processor to: establish a virtual queue associated with a physical event or a virtual event; receive a request related to the virtual queue from an end-device; update the virtual queue based on the request; send an initial update notification to the end-device indicating the status of the request; send periodic update notifications to the end-device based on a notification escalation plan, wherein the notification escalation plan comprises a rules-based multimodality means of communicating with the end-device; receive a check-in notification from an entity indicating the end-device has been checked-in; and remove the end-device from the virtual queue.
According to a second preferred embodiment, a method for enhanced virtual queuing is disclosed, comprising the steps of: establishing a virtual queue associated with a physical event or a virtual event; receiving a request related to the virtual queue from an end-device; updating the virtual queue based on the request; sending an initial update notification to the end-device indicating the status of the request; sending periodic update notifications to the end-device based on a notification escalation plan, wherein the notification escalation plan comprises a rules-based multimodality means of communicating with the end-device; receiving a check-in notification from an entity indicating the end-device has been checked-in; and removing the end-device from the virtual queue.
According to various aspects of the system and method; wherein the request is selected from the group consisting of a request to join a queue, a request to leave a queue, a request to transfer to a different queue, a request for the current wait time of a queue, a request for additional time, a request to schedule a position in a queue for a later time, and a request to change places in a queue; the system further comprising a callback cloud comprising at least a processor, a memory, and a second plurality of programming instructions stored in the memory and operating on the processor, wherein the second plurality of programming instructions, when operating on the processor, cause the processor to: receive the request related to a virtual queue from a queue manager; send automated follow-up messages to the end-device requesting more information related to the request; receive responses to the follow-up messages from the end-device; and send updated information based on the responses to the queue manager; wherein the queue manager updates the virtual queue based on the updated information from the callback cloud; wherein the request is a text message on an end device that is automatically generated after the end-device scans a QR code; wherein the multimodality means of communicating comprises internet-based communications, satellite communications, public telephone networks, mobile networks, Wi-Fi, Bluetooth, LoRa, public address systems, and near-field communications; the system further comprising a security module comprising at least a processor, a memory, and a third plurality of programming instructions stored in the memory and operating on the processor, wherein the third plurality of programming instructions, when operating on the processor, cause the processor to: receive a request to be authenticated, wherein the request is a claim to a position in the virtual queue that is currently allowed to check-in and comprises a unique identifier relating to a person or an end-device who is claiming to occupy that position in the virtual queue; verify the authenticity of the person or end-device attempting to check-in; and send a message to the queue manager indicating a successful or failed authentication attempt; wherein a failed authentication attempt alerts an authority; the system further comprising an analysis module comprising at least a processor, a memory, and a fourth plurality of programming instructions stored in the memory and operating on the processor, wherein the fourth plurality of programming instructions, when operating on the processor, cause the processor to: log all interactions with the end-device; log all available metadata about the virtual queue; send logged data to the entity; and use the logged data to generate interactive infographics related to various virtual queue metrics; and wherein the check-in notification is sent from the end-device.
The accompanying drawings illustrate several aspects and, together with the description, serve to explain the principles of the invention according to the aspects. It will be appreciated by one skilled in the art that the particular arrangements illustrated in the drawings are merely exemplary, and are not to be considered as limiting of the scope of the invention or the claims herein in any way.
The inventor has conceived, and reduced to practice, a system and method for managing virtual queues. A cloud-based queue service manages a plurality of queues hosted by one or more entities. The queue service is in constant communication with the entities providing queue management, queue analysis, and queue recommendations. The queue service is likewise in direct communication with queued persons. Sending periodic updates while also motivating and incentivizing punctuality and minimizing wait times based on predictive analysis. The predictive analysis uses “Big Data” and other available data resources, for which the predictions assist in the balancing of persons across multiple queues for the same event or multiple persons across a sequence of lines for sequential events.
One or more different aspects may be described in the present application. Further, for one or more of the aspects described herein, numerous alternative arrangements may be described; it should be appreciated that these are presented for illustrative purposes only and are not limiting of the aspects contained herein or the claims presented herein in any way. One or more of the arrangements may be widely applicable to numerous aspects, as may be readily apparent from the disclosure. In general, arrangements are described in sufficient detail to enable those skilled in the art to practice one or more of the aspects, and it should be appreciated that other arrangements may be utilized and that structural, logical, software, electrical and other changes may be made without departing from the scope of the particular aspects. Particular features of one or more of the aspects described herein may be described with reference to one or more particular aspects or figures that form a part of the present disclosure, and in which are shown, by way of illustration, specific arrangements of one or more of the aspects. It should be appreciated, however, that such features are not limited to usage in the one or more particular aspects or figures with reference to which they are described. The present disclosure is neither a literal description of all arrangements of one or more of the aspects nor a listing of features of one or more of the aspects that must be present in all arrangements.
Headings of sections provided in this patent application and the title of this patent application are for convenience only, and are not to be taken as limiting the disclosure in any way.
Devices that are in communication with each other need not be in continuous communication with each other, unless expressly specified otherwise. In addition, devices that are in communication with each other may communicate directly or indirectly through one or more communication means or intermediaries, logical or physical.
A description of an aspect with several components in communication with each other does not imply that all such components are required. To the contrary, a variety of optional components may be described to illustrate a wide variety of possible aspects and in order to more fully illustrate one or more aspects. Similarly, although process steps, method steps, algorithms or the like may be described in a sequential order, such processes, methods and algorithms may generally be configured to work in alternate orders, unless specifically stated to the contrary. In other words, any sequence or order of steps that may be described in this patent application does not, in and of itself, indicate a requirement that the steps be performed in that order. The steps of described processes may be performed in any order practical. Further, some steps may be performed simultaneously despite being described or implied as occurring non-simultaneously (e.g., because one step is described after the other step). Moreover, the illustration of a process by its depiction in a drawing does not imply that the illustrated process is exclusive of other variations and modifications thereto, does not imply that the illustrated process or any of its steps are necessary to one or more of the aspects, and does not imply that the illustrated process is preferred. Also, steps are generally described once per aspect, but this does not mean they must occur once, or that they may only occur once each time a process, method, or algorithm is carried out or executed. Some steps may be omitted in some aspects or some occurrences, or some steps may be executed more than once in a given aspect or occurrence.
When a single device or article is described herein, it will be readily apparent that more than one device or article may be used in place of a single device or article. Similarly, where more than one device or article is described herein, it will be readily apparent that a single device or article may be used in place of the more than one device or article.
The functionality or the features of a device may be alternatively embodied by one or more other devices that are not explicitly described as having such functionality or features. Thus, other aspects need not include the device itself.
Techniques and mechanisms described or referenced herein will sometimes be described in singular form for clarity. However, it should be appreciated that particular aspects may include multiple iterations of a technique or multiple instantiations of a mechanism unless noted otherwise. Process descriptions or blocks in figures should be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process. Alternate implementations are included within the scope of various aspects in which, for example, functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those having ordinary skill in the art.
“Callback” as used herein refers to an instance of an individual being contacted after their initial contact was unsuccessful. For instance, if a first user calls a second user on a telephone, but the second user does not receive their call for one of numerous reasons including turning off their phone or simply not picking up, the second user may then place a callback to the first user once they realize they missed their call. This callback concept applies equally to many forms of interaction that need not be restricted to telephone calls, for example including (but not limited to) voice calls over a telephone line, video calls over a network connection, or live text-based chat such as web chat or short message service (SMS) texting, email, and other messaging applications (e.g., WhatsApp, etc.). While a callback (and various associated components, methods, and operations taught herein) may also be used with an email communication despite the inherently asynchronous nature of email (participants may read and reply to emails at any time, and need not be interacting at the same time or while other participants are online or available), the preferred usage as taught herein refers to synchronous communication (that is, communication where participants are interacting at the same time, as with a phone call or chat conversation).
“Callback object” as used herein means a data object representing callback data, such as the identities and call information for a first and second user, the parameters for a callback including what time it shall be performed, and any other relevant data for a callback to be completed based on the data held by the callback object.
“Latency period” as used herein refers to the period of time between when a Callback Object is created and the desired Callback is initiated, for example, if a callback object is created and scheduled for a time five hours from the creation of the object, and the callback initiates on-time in five hours, the latency period is equal to the five hours between the callback object creation and the callback initiation.
“Brand” as used herein means a possible third-party service or device that may hold a specific identity, such as a specific MAC address, IP address, a username or secret key which can be sent to a cloud callback system for identification, or other manner of identifiable device or service that may connect with the system. Connected systems or services may include a Private Branch Exchange (“PBX”), call router, chat server which may include text or voice chat data, a Customer Relationship Management (“CRM”) server, an Automatic Call Distributor (“ACD”), or a Session Initiation Protocol (“SIP”) server.
Conceptual Architecture
A PSTN 103 or the Internet 102 (and it should be noted that not all alternate connections are shown for the sake of simplicity, for example a desktop PC 126 may communicate via the Internet 102) may be further connected to a plurality of enterprise endpoints 120, which may comprise cellular telephones 121, telephony switch 122, desktop environment 125, internal Local Area Network (LAN) or Wide-Area Network (WAN) 130, and mobile devices such as tablet computing device 128. As illustrated, desktop environment 125 may include both a telephone 127 and a desktop computer 126, which may be used as a network bridge to connect a telephony switch 122 to an internal LAN or WAN 130, such that additional mobile devices such as tablet PC 128 may utilize switch 122 to communicate with PSTN 102. Telephone 127 may be connected to switch 122 or it may be connected directly to PSTN 102. It will be appreciated that the illustrated arrangement is exemplary, and a variety of arrangements that may comprise additional devices known in the art are possible, according to the invention.
Callback cloud 101 may respond to requests 140 received from communications networks with callbacks appropriate to the technology utilized by such networks, such as data or Voice over Internet Protocol (VOIP) callbacks 145, 147 sent to Internet 102, or time-division multiplexing (TDM) such as is commonly used in cellular telephony networks such as the Global System for Mobile Communications (GSM) cellular network commonly used worldwide, or VOIP callbacks to PSTN 103. Data callbacks 147 may be performed over a variety of Internet-enabled communications technologies, such as via e-mail messages, application pop-ups, or Internet Relay Chat (IRC) conversations, and it will be appreciated by one having ordinary skill in the art that a wide variety of such communications technologies are available and may be utilized according to the invention. VOIP callbacks may be made using either, or both, traditional telephony networks such as PSTN 103 or over VOIP networks such as Internet 102, due to the flexibility to the technology involved and the design of such networks. It will be appreciated that such callback methods are exemplary, and that callbacks may be tailored to available communications technologies according to the invention.
Additionally, callback cloud 101 may receive estimated wait time (EWT) information from an enterprise 120 such as a contact center. This information may be used to estimate the wait time for a caller before reaching an agent (or other destination, such as an automated billing system), and determine whether to offer a callback proactively before the customer has waited for long. EWT information may also be used to select options for a callback being offered, for example to determine availability windows where a customer's callback is most likely to be fulfilled (based on anticipated agent availability at that time), or to offer the customer a callback from another department or location that may have different availability. This enables more detailed and relevant callback offerings by incorporating live performance data from an enterprise, and improves customer satisfaction by saving additional time with preselected recommendations and proactively-offered callbacks.
When a user calls from a mobile device 112 or uses some communication application such as (for example, including but not limited to) SKYPE™ or instant messaging, which may also be available on a laptop or other network endpoint other than a cellular phone 112, they may be forwarded to brands 210 operated by a business in the manner described herein. For example, a cellular phone call my be placed over PSTN 103 before being handled by a call router 214 and generating a session with a SIP server 212, the SIP server creating a session with a callback cloud 220 with a profile manager 221 if the call cannot be completed, resulting in a callback being required. A profile manager 221 manages the storage, retrieval, and updating of user profiles, including global and local user profiles. The profile manager 221, which may be located in a callback cloud 220 receives initial requests to connect to callback cloud 220, and forwards relevant user profile information to a callback manager 223, which may further request environmental context data from an environment analyzer 222. Environmental context data may include (for example, and not limited to) recorded information about when a callback requester or callback recipient may be suspected to be driving or commuting from work, for example, and may be parsed from online profiles or online textual data, using an environment analyzer 222.
A callback manager 223 centrally manages all callback data, creating a callback programming object which may be used to manage the data for a particular callback, and communicates with an interaction manager 224 which handles requests to make calls and bridge calls, which go out to a media server 225 which actually makes the calls as requested. For example, interaction manager 224 may receive a call from a callback requester, retrieve callback parameters for that callback requester from the callback manager 223, and cause the media server 225 to make a call to a callback recipient while the callback requester is still on the line, thus connecting the two parties. After the call is connected, the callback programming object used to make the connection may be deleted. The interaction manager 224 may subsequently provide changed callback parameters to the callback manager 223 for use or storage. In this way, the media server 225 may be altered in the manner in which it makes and bridges calls when directed, but the callback manager 223 does not need to adjust itself, due to going through an intermediary component, the interaction manager 224, as an interface between the two. A media server 225, when directed, may place calls and send messages, emails, or connect voice over IP (“VoIP”) calls and video calls, to users over a PSTN 103 or the Internet 102. Callback manager 223 may work with a user's profile as managed by a profile manager 221, with environmental context from an environment analyzer 222 as well as (if provided) EWT information for any callback recipients (for example, contact center agents with the appropriate skills to address the callback requestor's needs, or online tech support agents to respond to chat requests), to determine an appropriate callback time for the two users (a callback requestor and a callback recipient), interfacing with an interaction manager 224 to physically place and bridge the calls with a media server 225. In this way, a user may communicate with another user on a PBX system 211, or with automated services hosted on a chat server 215, and if they do not successfully place their call or need to be called back by a system, a callback cloud 220 may find an optimal time to bridge a call between the callback requestor and callback recipient, as necessary.
A calendar server 321, according to the embodiment, is a server which may store and retrieve, either locally or from internet-enabled services associated with a user, calendars which hold data on what times a user may be available or busy (or some other status that may indicate other special conditions, such as to allow only calls from certain sources) for a callback to take place. A calendar server 321 connects to the internet 102, and to a profile manager 322, to determine the times a callback requestor and callback recipient may both be available.
Present in this embodiment is a brand interface server 430, which may expose the identity of, and any relevant API's or functionality for, any of a plurality of connected brands 410, to elements in a callback cloud 420. In this way, elements of a callback cloud 420 may be able to connect to, and interact more directly with, systems and applications operating in a business' infrastructure such as a SIP server 412, which may be interfaced with a profile manager 421 to determine the exact nature of a user's profiles, sessions, and interactions in the system for added precision regarding their possible availability and most importantly, their identity.
Present in this embodiment is a brand interface server 530, which may expose the identity of, and any relevant API's or functionality for, any of a plurality of connected brands 510, to elements in a callback cloud 520. In this way, elements of a callback cloud 520 may be able to connect to, and interact more directly with, systems and applications operating in a business' infrastructure such as a SIP server 512, which may be interfaced with a profile manager 521 to determine the exact nature of a user's profiles, sessions, and interactions in the system for added precision regarding their possible availability and most importantly, their identity. Also present in this embodiment is an intent analyzer 540, which analyzes spoken words or typed messages from a user that initiated the callback request, to determine their intent for a callback. For example, their intent may be to have an hour-long meeting, which may factor into the decision by a callback cloud 520 to place a call shortly before one or both users may be required to start commuting to or from their workplace. Intent analysis may utilize any combination of text analytics, speech-to-text transcription, audio analysis, facial recognition, expression analysis, posture analysis, or other analysis techniques, and the particular technique or combination of techniques may vary according to such factors as the device type or interaction type (for example, speech-to-text may be used for a voice-only call, while face/expression/posture analysis may be appropriate for a video call), or according to preconfigured settings (that may be global, enterprise-specific, user-specific, device-specific, or any other defined scope).
In this embodiment, a privacy server 621 may connect to the internet 102, and to a profile manager 622 as well as a callback manager 624, and allows for callback requestors to first be validated using trust-circles to determine if they are a trusted user. A trusted user may be defined using a variety of criteria (that may vary according to the user, interaction, device, enterprise, or other context), and may for example comprise a determination of whether the callback requestor is a friend or family member, or is using a trusted brand such as a piece of equipment from the same company that the callback recipient works at, or if the callback requestor is untrusted or is contacting unknown recipients, to determine if a callback request is permitted based on user settings. Further, a privacy server 621 may encrypt one or both of incoming and outgoing data from a callback manager 624 in such a way as to ensure that, for example, a callback recipient might not know who requested the callback, or their profile may not be visible to the recipient, or vice versa, and other privacy options may also be enabled as needed by a corporation. Encryption may utilize public or private keys, or may utilize perfect forward secrecy (such that even the enterprise routing the call cannot decrypt it), or other encryption schema or combinations thereof that may provide varying features or degrees of privacy, security, or anonymity (for example, one enterprise may permit anonymous callbacks while another may require a user to identify themselves and may optionally verify this identification).
In the present embodiment, a bot server 724 also is present in a callback cloud 720, which allows for communication with a callback requestor. Bot server 724 allows a user to specify, through any available data type such as (including, but not limited to) SMS texting, email, or audio data, any desired parameters for the callback they would like to request. This is similar to an ACD system used by individual call-centers, but exists as a separate server 724 in a cloud service 720 which may then be configured as-needed by a hosting company, and behaves akin to an automated secretary, taking user information down to specify a callback at a later time from the callback recipient.
In this embodiment, an operations analyzer 824 is present, which may determine a particular channel to be used to reach a callback recipient and callback requestor, for example (and not limited to), VoIP services such as SKYPE™ or DISCORD™, a PSTN phone connection, any particular phone number or user accounts to connect using, or other service, to determine the optimal method with which to reach a user during a callback. An operations analyzer 824 may also analyze and determine the points of failure in a callback cloud 820, if necessary, for example if a callback attempt fails to connect operations analyzer 824 may bridge a callback requestor and recipient using an alternate communication channel to complete the callback at the scheduled time.
Present in this embodiment is a brand interface server 930, which may expose the identity of, and any relevant API's or functionality for, any of a plurality of connected brands 910, to an intent analyzer 940. In this way, elements of a callback cloud 920 may be able to connect to, and interact more directly with, systems and applications operating in a business' infrastructure such as a SIP server 912, which may be interfaced with a profile manager 921 to determine the exact nature of a user's profiles, sessions, and interactions in the system for added precision regarding their possible availability and most importantly, their identity. An intent analyzer 940 may analyze spoken words or typed messages from a user that initiated the callback request, to determine their intent for a callback, as well as forward data received from a brand interface server. For example, their intent may be to have an hour-long meeting, which may factor into the decision by a callback cloud 920 to place a call shortly before one or both users may be required to start commuting to or from their workplace. An intent analyzer 940 may forward all data through a broker server 950 which may allocate specific actions and responses to take between third-party brands 910 and callback cloud 920 components, as needed, as well as forward all data from the exposed and interfaced elements with the callback cloud 920.
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Expanding on the notion of trust circles, there may also be logical “ability” circles that correspond to various individuals' capabilities and appropriateness for various issues, such as (for example) tech support skill or training with specific products, or whether a member of a brand 1010 is actually a member of the best brand to handle a specific reason for a callback, based on the callback request context. For example, a customer requesting a callback for assistance with booking a flight may not be adequately served by employees of airlines that don't offer flights to their intended destination, so combining the brand trust zone 1010 with a capability map would indicate to the callback system which individuals are more appropriate for the callback in question. This expands from merely trusting certain users and discarding others, to a form of automated virtual concierge service that finds the user for a callback request that is most capable and relevant to the request, ensuring optimum handling of the callback requestor's needs.
The cloud based virtual queuing platform 3100 as described herein may make use of the embodiments from the previous figures and referenced applications by combining prior embodiments with at least one of the one or more components from the embodiments described henceforth. For example, a cloud platform for virtual queuing 3100 may employ a callback cloud 920 and/or user brands 910 as previously described to facilitate any features necessitated by the aspects of a cloud platform for virtual queuing 3100 as disclosed herein. As a specific example, a callback cloud 920 may handle the text and voice services used in a cloud platform for virtual queuing 3100. Additionally, any previous embodiments may now implement the queue service 3200 as described in the following paragraphs and figures. For example, previous embodiments are directed towards call center applications. therefore, the queue service 3200 and its aspects as described herein, may better facilitate the queueing aspects of the call center embodiments or provide enhancements not disclosed in the previous embodiments.
A queue manager 3301 interfaces with entities and end-devices according to one embodiment. In another embodiment, a queue manager 3301 may use a callback cloud 920 to initiate messages and data flow between itself and entities and end devices. According to another embodiment, a notification module 3305 may take over notification functions to entities and end-devices. In yet another embodiment, a notification module 3305 instructs a callback cloud 920 as to what messages to send and when. According to an aspect of various embodiments, a notification module 3305 may manage notifications to end-devices based on a notification escalation plan, whereby notifications a means are dynamically adjusted based on a set of rules. According to one embodiment, a queue manager 3301 may handle the managing of a plurality of simple queues without the need for the other modules 3302-3307, i.e., if the simple queues require no authentication, security, analysis, predictions, and other aspects, then a queue manager 3301 may be all that is required. The previously mentioned aspects may be implemented based on a pricing scheme, according to one embodiment. A tiered-pricing cloud-based virtual queuing platform wherein the tiered pricing is based off the features available to the entities. According to one embodiment, a queue manager 3301 works in tandem with other modules 3302-3307 to provide the full functionality of the features disclosed herein specifically in regards to handling sequences of queues.
Sequenced queues comprise two or more queues that are sequential, meaning at least one of the queues comes before another queue. Sequential queues may comprise parallel queues, meaning that one of the sequential queues is comprised of more than one queue for the same event. According to one embodiment, sequenced event queue management may be handled by a queue sequencer 3302. Examples of sequenced events with associated sequenced lines include air travel, zoos, concerts, museums, interactive galleries, theme parks, and any event with multiple required or optional queues. Sequential queues may not typically be treated with a first-in-first-out algorithm because the rate at which one person completes a queue may not be the same as a different person. Consider air travel; the first line (check-in) of a sequence of lines (subsequently at least security and then boarding lines) is checking in at an airport. A person with no checked baggage will make it through faster than a person with baggage to be checked; and a person who preprinted their boarding pass is even faster.
The queue sequencer 3302 may be supplemented by a queue load balancer 3303 that manages the load across a plurality of queues, parallel or not, and sequential or not. The queue load balancer 3303 may take predictions from a prediction module 3304 to better manage wait times across the plurality of queues. Continuing with the air travel example; a queue load balancer 3303 may distribute persons across queues for the same event (multiple security queues, etc.) and may consider many factors. One factor may be distributing persons who all belong to a single group into different parallel queues, so that the group may finish clearing the queue(s) more closely in time than had they all queued at just one queue, rather than spread across multiple parallel queues. Another factor may be the consideration of a route a person or group of persons has to take to make it to the first queue or a subsequent queue. Still more factors may be alerting the entity to open or close more queuing lanes or to produce more or less manual or automatic scanners. A factor may also be to consider the estimated time of arrival for some individuals and yet another factor may be whether some individuals are willing to wait longer than others. In some embodiments the queue sequencer 3302 and queue load balancer 3303 work in tandem with the prediction module 3304 to run simulations of queues in order to achieve the minimal wait times possible. Simulations may have goals other than minimal wait times, e.g., to maximize distance between persons during a pandemic.
As one example, expanding on the routing factor, a prediction module 3304 may run simulations (using machine learning, according to one embodiment) where the possible combinations of each queued person and the possible wait-times of a sequence of queues is iterated over to find the optimal configuration of persons across all queues. A specific example may be a simulation which considers all the possible airline check-in counters, their physical location in relation to one or more security lines and each other, their historical check-in rates, the distance to trams, buses, and the like, the passengers and the requirements of their check-in (baggage, wheelchair service, preprinted ticket, groups size, etc.), when the passengers may arrive (using GPS or explicit requests for estimated time of arrival and mode of transportation), passenger walking rate (using sensors), departure times, and other factors such that the simulation produces an optimal time-to-check-in notification to each passenger. Simulations may be constrained not to create a perceptible unfairness to a queue. For example, putting a group of five people who just arrived in front of a single person who has been waiting onsite for a significant amount of time. This invention may also be used in air travel arrivals, expediting baggage claim processes and transportation services. These scenarios are merely exemplary and not to be limiting in any way. Many factors exist across multiple domains and likewise for the types of constraints for simulations.
According to various embodiments, a single queue is used for both walk up users scanning the QR code with a mobile device and users who book a spot in the queue using the web UI (e.g., webpage or webapp, etc.). In this case, users are in a single queue, however, the users who booked online have priority for that time slot they booked. So for instance, if the queue currently has a two hour wait time at 2 p.m., and a user books a time slot for 3 p.m., when 3 p.m. approaches the user will be prioritized and will be notified to enter the physical queue. The queue load balancer 3303 and prediction module 3304 work together to account for these time slots, the total people per time slot, and factor it into the predictive models to produce an accurate estimated wait time for walk-ups joining the virtual queue, according to some embodiments. In other words, if a user walks up and enters the virtual queue, the estimated wait time is taking into account all the users ahead of him or her including the ones in overlapping time slots. Additionally, if a user booked a time slot for 1 p.m. and the user shows up early at 12:30 p.m. and scans the QR code, the user will be provided the queue estimated wait time and given the option (e.g., via an SMS message, email, messaging application, etc.) to keep the booked time slot or cancel the booked time slot and enter the queue like anyone else (that way if the estimated wait time is less than 30 minutes, the user can enter the queue early and not have to wait around).
Factors described above and elsewhere herein may be informed and/or supplemented using large or small data repositories (both private and public), streaming real-time (or near-real-time) data (e.g., traffic, etc.), sensor data, “Big Data”, and many other sources of data 3308. Another example from a separate domain is the emergency room (ER). The various hospital departments/clinics, staffing, and procedures that go into the ER service forms a complex logistical system that must be adhered to for regulatory and safety reasons. A queue service 3200 may be used with a predictive medical prognosis module (not illustrated) or simply data entries from front desk staff to prioritize patient queuing. Scheduling ER visits is also possible given the proper circumstances and may reduce wait times. Scheduling appointments and managing walk-ins spans multiple domains and is another factor that is considered by a queue service 3200.
According to some embodiments, the queue service 3200 and/or cloud platform for virtual queuing 3100 may be configured to integrate with one or more internet-of-things (IoT) devices and/or sensors in order to facilitate data exchange between the one or more IoT devices and sensors and the queue service 3200 and/or platform 3100. In some embodiments, one or more IoT devices and/or sensors may be used to detect the number of people in the physical queue and use that information in conjunction with queue load balancer 3303 and/or prediction module 3304 to automatically adjust the throughput of the users being dequeued. Types of IoT devices and/or sensors that may be used include, but are not limited to, thermal sensors, pressure sensors, force sensors, vibration sensors, piezo sensors, position sensors, photoelectric sensors, switches, transducers, and cameras. In some embodiments, received sensor data may be processed using one or more algorithms best suited for processing the particular type of data received from the sensor. For example, a camera may be set up to watch the queue and return live video data to the queue service 3200, which may be configured to apply facial recognition algorithms in order to determine the number of unique faces in the queue, and thus the number of individuals waiting in the queue. As another example, one or more pressure sensors may be deployed in the path of the queue and when pressure is detected and the data sent to queue service 3200, it may determine each set of pressure data corresponds to a new individual entering or leaving the queue. In yet another embodiment, multiple sensors of different types may be used simultaneously in order to determine the number of people waiting in a queue. According to an embodiment, upon determination of the number of people in a queue, queue service 3200 may automatically predict and adjust the queue wait times and subsequently the throughput of the users being dequeued.
A security module 3306 may be used to generate QR codes, one-time passwords, two-factor authentication codes, and the like. A security module 3306 may automatically authenticate queued persons at biometric stations, NFC stations, entity scanning devices, or use similar technologies which may identify the uniqueness of a device or person. A security module 3306 may receive an acknowledgement from an entity from a manual verification, or a verification using the entities own equipment (using APIs as one example). A security module 3306 may report the success or failure of an authentication attempt to a 3rd party, such as security forces or electronic alarm. The success or failure of an authentication attempt may drive the next steps of one or more components of a cloud based virtual queuing platform 3100. A security module 3306 may monitor sensors that check if the correct amount of people enters a designated location. For example, a hotel may use the disclosed invention to automate check-ins; where NFC beacons at the front desk identify the person at the front desk by scanning the device which would have been pre-registered with the guest's profile and could then could trigger the release of a locked compartment containing the guest's room key and hotel information. Additionally, rules may be implemented which do not allow the release of the locked compartment if the queued person's turn was not up or has past.
An analysis module 3307 may provide statistical analysis of past, current (i.e., real-time), and future (i.e., predicted) queue metrics.
Exemplary tables of notification escalation rules are illustrated in
For example,
A cloud-based virtual queuing platform 3100 updates one or more queues based on the type of request, i.e., based on at least one of the scenarios presented above 3501. Configuration changes may occur within components 910, 920, and 3301-3308 of a cloud-based virtual queuing platform 3100 based on certain request scenarios. For example, a request for more time to reach the destination if a person or persons is running late may cause a queue load balancer 3303 and/or a prediction module 3304 to adjust their algorithmic parameters, which in the end may still update the queues.
A confirmation will be sent back to the end-device to confirm a successful or failed request attempt 3502. Requests may also be sent to the entity as desired or stored in a database or blockchain. Failed or suspicious for requests may activate alarms or trigger security sequences within a security module 3306.
Periodic updates may be sent to the end device, entity, or some combination thereof 3503. As described previously, notifications, i.e., periodic updates, maybe sent according to a rule set (e.g., notification escalation plan). Notifications may be sent over any type of communication means, any combinations of said communication means, and in any frequency as necessary.
Notifications may or may not adjust as the time nears when a queued person or persons should begin to move towards the queue destination 3504. Adjustments may be as described above using notification escalation plans. According to one embodiment, alerts may be sent over devices that are not the end-device, such as an intercom or pager system. According to one embodiment, a prediction module 3304 uses routing algorithms and machine learning to determine the amount of time needed for a person or persons to get to the destination in time. The routing algorithms and machine learning not only considers the person who is currently at the front of the queue, but may consider any combination of persons across some or all queues and any combination of some or all persons in some or all queues.
A cloud-based virtual queuing platform 3100 is notified once the person or persons has checked in 3505. A successful notification may depend on whether or not that person or persons have been successfully authenticated, according to one embodiment. Notification that the individual or individuals have checked-in may update queues or trigger other actions according to the embodiments set forth herein.
One such update to the queue may be to remove the queued individual or individuals, i.e., the individual's or individuals' end-devices, from the queue 3506. Should the individuals be in a sequential queue, then the individuals may be transferred to a different queue in addition to being removed from the queue they were previously in.
A group of travelers may scan a QR code 3401 as illustrated in the sign 3700 in
According to this embodiment, a URL is sent 4200 to an end-device that directs the end-device to a webpage that asks for access to the end-device's location 4201. The URL may be sent by any number of communication means (text, email, etc.). According to another embodiment, GPS access may be granted through a partnering application or a bespoke application.
The GPS data is then used at least by itself to determine the location of the queued person 4202. If traveling in a group, an automated message could be sent to the tracked person asking if the whole group is present therefore providing location data for the whole group using one GPS. The locality data may be used with 3rd party data (such as map and traffic data, public transportation data, news, social media, and “Big data”) to make predictions and manage one or more queues. Predictions using the GPS and 3rd party data may estimate the time of arrival for a plurality of people 4202. The plurality of data may be used to suggest specific travel routes or incentives for some individuals so that they arrive at a specific time in order to balance the queue load. For example, if the data shows a large influx of people are requesting or plan to arrive within a short time window, new route suggestions may be sent to some individuals to increase the total travel time and discounts for future events may be offered as an incentive. Continuing with this example, other individuals may be offered a coupon to a coffee shop which is on-route to the queue destination, in the expectation that some percentage will take advantage of the coupon thus better balancing the queue throughput for that high-influx time window. Other predictions and uses are anticipated using location data, sensors, 3rd party data, and combinations thereof in order to better manage and balance one or more queues.
In a first 4200 and second 4201 step, the URL is sent to an end-device 4200 which leads to a browser that requests permission for the GPS 4201. The initial GPS reading skips steps 4202 and 4203 as they are “as necessary”, and checks if the queued person is going to arrive on time 4205. If the person is predicted to be on-time, then notifications are sent as normal, set by the notification escalation plan 4207. If the person is not to be on-time and has not departed for the queue destination 4206, then notifications will be sent according to the notification escalation plan using those two parameters 4205/4205. If the person will not be on-time but is in-route, then the queue may be updated 4203 and if a prediction module 3304 determines a new (may be shorter, longer, or the same based on load balancing) route, the new route is sent to the end-device 4204. It may also be the case that the delay caused by the queued person requires some shifting of other queued persons, an incentive may be sent to one or more queued people 4204. At some point in time, given the queued person makes it to the queue destination, he, she, or they will be checked-in 4208 and the queue may be update appropriately 4209.
Referring now to
A queue load balancer 3303 uses real-time queue information from a queue sequencer 3302 and predictions from a prediction module 3304 to keep the wait times to a minimum across the plurality of queues. The queue load balancer 3303 may be configured to prioritize other goals instead as disclosed elsewhere herein. As also disclosed elsewhere, the queue load balancer 3303 may use detours, incentivized delays, and coupons to adjust the flow of traffic through an event, both spatially and/or temporally. For example, a virtual event may not have spatial restrictions but network congestion restrictions, wherein queued persons may be presented with advertisements or media to control the flow of the queue. These aspects may be optional for queued persons with incentives to choose to wait longer than others, such as the airlines industry does when a flight is overbooked.
Once the party has checked-in to the first line successfully, the party is slotted into the next sequential queue. Throughout the whole sequential queue process, the queue load balancer 3303 is maintaining the optimal wait time configuration. This process of checking-in, maintaining bi-directional communication with the party (i.e., end-device), and maintaining optimal wait times is iterated through each line until the party clears the final queue.
In a first step 4700, the average wait time (wait time(s) could also be measured against some other parameter, e.g., even if one queued person has to wait more than X minutes, etc.) is compared a set threshold limit. If the average wait time has not surpassed the limit, then the operation continues as normal 4701. If the limit has been surpassed, then it is determined if a new queue is available 4702. This may be accomplished by storing entity profiles in a database, having such information as how many queues (or check-in stations) may be established. This applies for many aspects of the entity. According to one embodiment, entities may be sent automatic messages requesting such information if it is not known. If it cannot be established that another queue is possible, or that another queue is not possible, then incentives may be sent out to a calculated set of queued persons 4704 if available 4703. If not, then at least a notification is sent out to the effected parties, including the entity in some embodiments 4705.
If a new queue may be established or an already existing parallel queue does not exist 4706, then the entity is notified to establish (e.g., man a check-in counter, place or power on an automated check-in means) a parallel queue 4707. That is unless the entity does not need to perform any actions to instantiate a parallel queue. According to one embodiment, a cloud-based virtual queuing platform may send an electronic signal instantiating a new check-in apparatus/destination/virtual or physical point. For example, the electronic signal may turn on a “lane open” sign and boot an NFC beacon within a turn-style. If it so happens that a turn of events in-fact does not lead to wait times under the threshold, the effected parties may be notified 4705. However, it is likely that this algorithm combined with the other factors calculated by a cloud-based virtual queuing platform, i.e., the iterative queue simulations solutions, will provide a decreased average wait time. If it is determined that adding a new queue (or that an already existing queue is not at capacity) 4708 than notifications may be sent instructing individuals and groups to adjust accordingly 4709. The cloud-based virtual queuing platform may be configured to allow an individual or group of individuals to book a time slot in a queue using a mobile device (e.g., smartphone, tablet, smart wearable, etc.); the individual or group can overflow into another queue if it has availability. For example, if two airlines use the same gate, but different security checkpoints, and there is availability at one checkpoint and not the other, the platform can automatically overflow the individual or group to the other checkpoint so they can still book the desired virtual queue time slot. In such a case, a notification may be sent to individuals who have been ‘overflowed’ via various communication channels including, but not limited to, SMS, email, and other messaging applications (e.g., WhatsApp, etc.).
Not shown in this diagram are other considerations such as the economic cost of operating additional queues, pandemic considerations such as separating persons by vaccination-status, and other queue-related considerations. According to some embodiments, the wait time threshold 4700 may be compared against the time decreased by adding additional queues 4708, and if the wait time difference is significant enough, shuffle queued people around 4707 regardless if the new wait time 4708 is under the threshold 4700.
According to a first step 4800, a cloud-based virtual queuing platform receives a request for an appointment or a position in a queue. Requests may be other actions such as to leave a queue, etc. In a second step, the virtual queue may be updated based on the request 4801. A third step comprises sending a notification of appointment confirmation with one-time password to both an entity and a queued end-device 4802. Periodic updates may be sent to the end-device per a rule set 4803. In a fourth step 4804, an alert is sent to end-device (and the entity in some embodiments) to notify individual their turn is coming up or is up. Individuals are then authenticated using the onetime password via at least one of the implied or explicit methods disclosed herein. A notification of successful check-in may be automatically sent from an entity device or manually sent which is received by the cloud-based virtual queuing platform 4805. In a sixth step 4806, the end-device is removed from the virtual queue.
Hardware Architecture
Generally, the techniques disclosed herein may be implemented on hardware or a combination of software and hardware. For example, they may be implemented in an operating system kernel, in a separate user process, in a library package bound into network applications, on a specially constructed machine, on an application-specific integrated circuit (“ASIC”), or on a network interface card.
Software/hardware hybrid implementations of at least some of the aspects disclosed herein may be implemented on a programmable network-resident machine (which should be understood to include intermittently connected network-aware machines) selectively activated or reconfigured by a computer program stored in memory. Such network devices may have multiple network interfaces that may be configured or designed to utilize different types of network communication protocols. A general architecture for some of these machines may be described herein in order to illustrate one or more exemplary means by which a given unit of functionality may be implemented. According to specific aspects, at least some of the features or functionalities of the various aspects disclosed herein may be implemented on one or more general-purpose computers associated with one or more networks, such as for example an end-user computer system, a client computer, a network server or other server system, a mobile computing device (e.g., tablet computing device, mobile phone, smartphone, laptop, or other appropriate computing device), a consumer electronic device, a music player, or any other suitable electronic device, router, switch, or other suitable device, or any combination thereof. In at least some aspects, at least some of the features or functionalities of the various aspects disclosed herein may be implemented in one or more virtualized computing environments (e.g., network computing clouds, virtual machines hosted on one or more physical computing machines, or other appropriate virtual environments).
Referring now to
In one embodiment, computing device 10 includes one or more central processing units (CPU) 12, one or more interfaces 15, and one or more busses 14 (such as a peripheral component interconnect (PCI) bus). When acting under the control of appropriate software or firmware, CPU 12 may be responsible for implementing specific functions associated with the functions of a specifically configured computing device or machine. For example, in at least one embodiment, a computing device 10 may be configured or designed to function as a server system utilizing CPU 12, local memory 11 and/or remote memory 16, and interface(s) 15. In at least one embodiment, CPU 12 may be caused to perform one or more of the different types of functions and/or operations under the control of software modules or components, which for example, may include an operating system and any appropriate applications software, drivers, and the like.
CPU 12 may include one or more processors 13 such as, for example, a processor from one of the Intel, ARM, Qualcomm, and AMD families of microprocessors. In some embodiments, processors 13 may include specially designed hardware such as application-specific integrated circuits (ASICs), electrically erasable programmable read-only memories (EEPROMs), field-programmable gate arrays (FPGAs), and so forth, for controlling operations of computing device 10. In a specific embodiment, a local memory 11 (such as non-volatile random access memory (RAM) and/or read-only memory (ROM), including for example one or more levels of cached memory) may also form part of CPU 12. However, there are many different ways in which memory may be coupled to system 10. Memory 11 may be used for a variety of purposes such as, for example, caching and/or storing data, programming instructions, and the like. It should be further appreciated that CPU 12 may be one of a variety of system-on-a-chip (SOC) type hardware that may include additional hardware such as memory or graphics processing chips, such as a QUALCOMM SNAPDRAGON™ or SAMSUNG EXYNOS™ CPU as are becoming increasingly common in the art, such as for use in mobile devices or integrated devices.
As used herein, the term “processor” is not limited merely to those integrated circuits referred to in the art as a processor, a mobile processor, or a microprocessor, but broadly refers to a microcontroller, a microcomputer, a programmable logic controller, an application-specific integrated circuit, and any other programmable circuit.
In one embodiment, interfaces 15 are provided as network interface cards (NICs). Generally, NICs control the sending and receiving of data packets over a computer network; other types of interfaces 15 may for example support other peripherals used with computing device 10. Among the interfaces that may be provided are Ethernet interfaces, frame relay interfaces, cable interfaces, DSL interfaces, token ring interfaces, graphics interfaces, and the like. In addition, various types of interfaces may be provided such as, for example, universal serial bus (USB), Serial, Ethernet, FIREWIRE™, THUNDERBOLT™, PCI, parallel, radio frequency (RF), BLUETOOTH™, near-field communications (e.g., using near-field magnetics), 802.11 (Wi-Fi), frame relay, TCP/IP, ISDN, fast Ethernet interfaces, Gigabit Ethernet interfaces, Serial ATA (SATA) or external SATA (ESATA) interfaces, high-definition multimedia interface (HDMI), digital visual interface (DVI), analog or digital audio interfaces, asynchronous transfer mode (ATM) interfaces, high-speed serial interface (HSSI) interfaces, Point of Sale (POS) interfaces, fiber data distributed interfaces (FDDIs), and the like. Generally, such interfaces 15 may include physical ports appropriate for communication with appropriate media. In some cases, they may also include an independent processor (such as a dedicated audio or video processor, as is common in the art for high-fidelity A/V hardware interfaces) and, in some instances, volatile and/or non-volatile memory (e.g., RAM).
Although the system shown in
Regardless of network device configuration, the system of the present invention may employ one or more memories or memory modules (such as, for example, remote memory block 16 and local memory 11) configured to store data, program instructions for the general-purpose network operations, or other information relating to the functionality of the embodiments described herein (or any combinations of the above). Program instructions may control execution of or comprise an operating system and/or one or more applications, for example. Memory 16 or memories 11, 16 may also be configured to store data structures, configuration data, encryption data, historical system operations information, or any other specific or generic non-program information described herein.
Because such information and program instructions may be employed to implement one or more systems or methods described herein, at least some network device embodiments may include non-transitory machine-readable storage media, which, for example, may be configured or designed to store program instructions, state information, and the like for performing various operations described herein. Examples of such non-transitory machine-readable storage media include, but are not limited to, magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROM disks; magneto-optical media such as optical disks, and hardware devices that are specially configured to store and perform program instructions, such as read-only memory devices (ROM), flash memory (as is common in mobile devices and integrated systems), solid state drives (SSD) and “hybrid SSD” storage drives that may combine physical components of solid state and hard disk drives in a single hardware device (as are becoming increasingly common in the art with regard to personal computers), memristor memory, random access memory (RAM), and the like. It should be appreciated that such storage means may be integral and non-removable (such as RAM hardware modules that may be soldered onto a motherboard or otherwise integrated into an electronic device), or they may be removable such as swappable flash memory modules (such as “thumb drives” or other removable media designed for rapidly exchanging physical storage devices), “hot-swappable” hard disk drives or solid state drives, removable optical storage discs, or other such removable media, and that such integral and removable storage media may be utilized interchangeably. Examples of program instructions include both object code, such as may be produced by a compiler, machine code, such as may be produced by an assembler or a linker, byte code, such as may be generated by for example a JAVA™ compiler and may be executed using a Java virtual machine or equivalent, or files containing higher level code that may be executed by the computer using an interpreter (for example, scripts written in Python, Perl, Ruby, Groovy, or any other scripting language).
In some embodiments, systems according to the present invention may be implemented on a standalone computing system. Referring now to
In some embodiments, systems of the present invention may be implemented on a distributed computing network, such as one having any number of clients and/or servers. Referring now to
In addition, in some embodiments, servers 32 may call external services 37 when needed to obtain additional information, or to refer to additional data concerning a particular call. Communications with external services 37 may take place, for example, via one or more networks 31. In various embodiments, external services 37 may comprise web-enabled services or functionality related to or installed on the hardware device itself. For example, in an embodiment where client applications 24 are implemented on a smartphone or other electronic device, client applications 24 may obtain information stored in a server system 32 in the cloud or on an external service 37 deployed on one or more of a particular enterprise's or user's premises.
In some embodiments of the invention, clients 33 or servers 32 (or both) may make use of one or more specialized services or appliances that may be deployed locally or remotely across one or more networks 31. For example, one or more databases 34 may be used or referred to by one or more embodiments of the invention. It should be understood by one having ordinary skill in the art that databases 34 may be arranged in a wide variety of architectures and using a wide variety of data access and manipulation means. For example, in various embodiments one or more databases 34 may comprise a relational database system using a structured query language (SQL), while others may comprise an alternative data storage technology such as those referred to in the art as “NoSQL” (for example, HADOOP CASSANDRA™, GOOGLE BIGTABLE™, and so forth). In some embodiments, variant database architectures such as column-oriented databases, in-memory databases, clustered databases, distributed databases, or even flat file data repositories may be used according to the invention. It will be appreciated by one having ordinary skill in the art that any combination of known or future database technologies may be used as appropriate, unless a specific database technology or a specific arrangement of components is specified for a particular embodiment herein. Moreover, it should be appreciated that the term “database” as used herein may refer to a physical database machine, a cluster of machines acting as a single database system, or a logical database within an overall database management system. Unless a specific meaning is specified for a given use of the term “database”, it should be construed to mean any of these senses of the word, all of which are understood as a plain meaning of the term “database” by those having ordinary skill in the art.
Similarly, most embodiments of the invention may make use of one or more security systems 36 and configuration systems 35. Security and configuration management are common information technology (IT) and web functions, and some amount of each are generally associated with any IT or web systems. It should be understood by one having ordinary skill in the art that any configuration or security subsystems known in the art now or in the future may be used in conjunction with embodiments of the invention without limitation, unless a specific security 36 or configuration system 35 or approach is specifically required by the description of any specific embodiment.
In various embodiments, functionality for implementing systems or methods of the present invention may be distributed among any number of client and/or server components. For example, various software modules may be implemented for performing various functions in connection with the present invention, and such modules may be variously implemented to run on server and/or client components.
The skilled person will be aware of a range of possible modifications of the various embodiments described above. Accordingly, the present invention is defined by the claims and their equivalents.
Priority is claimed in the application data sheet to the following patents or patent applications, the entire written description of each of which is expressly incorporated herein by reference in its entirety: Ser. No. 17/540,130 Ser. No. 17/336,405 Ser. No. 17/011,248 Ser. No. 16/995,424 Ser. No. 16/896,108 Ser. No. 16/836,798 Ser. No. 16/542,577 Ser. No. 62/820,190 Ser. No. 62/858,454 Ser. No. 16/152,403 Ser. No. 16/058,044 Ser. No. 14/532,001 Ser. No. 13/659,902 Ser. No. 13/479,870 Ser. No. 12/320,517 Ser. No. 13/446,758 Ser. No. 17/235,408
Number | Name | Date | Kind |
---|---|---|---|
8831963 | Backer et al. | Sep 2014 | B2 |
20110307547 | Backer | Dec 2011 | A1 |
20140343977 | Macina | Nov 2014 | A1 |
20150379434 | Argue et al. | Dec 2015 | A1 |
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20220174154 A1 | Jun 2022 | US |
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62820190 | Mar 2019 | US |
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Parent | 17235408 | Apr 2021 | US |
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