Patent Grant
9619100
An example embodiment of the present invention relates generally to adapting content segments and, more particularly, relates to an apparatus, a method and a computer program product configured to adapt a content segment relating to the user contact based on an importance level of the user contact.
In order to provide easier or faster information transfer and convenience, telecommunication industry service providers are continually developing improvements to existing communication networks. As a result, wireless communication has become increasingly more reliable in recent years. Along with the expansion and improvement of wireless communication networks, mobile terminals used for wireless communication have also been continually improving. In this regard, due at least in part to reductions in size and cost, along with improvements in battery life and computing capacity, mobile terminals have become more capable, easier to use, and cheaper to obtain. Due to the now ubiquitous nature of mobile terminals, people of all ages and education levels are utilizing mobile terminals to communicate with other individuals or user contacts, receive services and/or share information, media and other content.
With the proliferation of mobile terminals, communications between users have increased. A user may now receive voice communications, video communications, and/or text communications on a mobile device. Thus, some users may receive a substantial number of communications throughout the course of a day. However, users may not have the necessary time to review and respond to all of the received communications. Users may thereby attempt to manually review the communications to determine those communications which are of greatest importance. However, manual review of communications in this manner may not be optimal in that manual review may still be time consuming and may result in the user overlooking important communications.
A method, apparatus and computer program product are therefore provided to adapt a content segment relating to a user contact or other data segment based on an importance level of the user contact or other data segment.
In an example embodiment, an improved apparatus comprises at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the processor, cause the apparatus to determine an importance level of a user contact, adapt a content segment relating to the user contact based on the importance level, and provide for output of the content segment.
In an additional example embodiment a method comprises determining an importance level of a user contact, adapting a content segment relating to the user contact based on the importance level via a processor, and providing for output of the content segment.
In a further example embodiment a computer program product comprises at least one computer-readable storage medium having computer-executable program code portions stored therein, the computer-executable program code portions comprising program code instructions for determining an importance level of a user contact, program code instructions for adapting a content segment relating to the user contact based on the importance level, and program code instructions providing for output of the content segment.
In a further example embodiment an apparatus comprises means for determining an importance level of a user contact, means for adapting a content segment, and means for outputting the content segment. Means for determining an importance level of a user contact may comprise a data manager, an importance level determiner, and/or a processor. Means for adapting a content segment may adapt a content segment relating to the user contact based on the importance level and may comprise a content segment adaptor, and/or the processor. Means for outputting the content segment may comprise a user interface, and/or the processor.
In some embodiments the apparatuses may be further configured to select a position of the content segment based on the importance level and provide for display of the content segment. Also, the apparatus may be configured to position the content segment out of an ordered sequence in instances in which the importance level for the user contact defines a greatest importance level. Additionally, the apparatus may be configured to determine the importance level for the user contact based on a contextual characteristic. The apparatus may further be configured to provide for normalization of the content segment. The apparatus may also be configured to select a color, shape, and/or size of the content segment based on the importance level and provide for display of the content segment. Similar embodiments of the method and computer program product are also provided. Accordingly, such example embodiments of the present invention may adapt a content segment relating to a user contact or other data segment based on an importance level of the user contact to assist a user in identifying important content segments. Thereby, efficiency in browsing for content segments may be improved.
Having thus described embodiments of the present disclosure in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
Some embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like reference numerals refer to like elements throughout. As used herein, the terms “data,” “content,” “information” and similar terms may be used interchangeably to refer to data capable of being transmitted, received and/or stored in accordance with embodiments of the present invention. Moreover, the term “exemplary”, as may be used herein, is not provided to convey any qualitative assessment, but instead merely to convey an illustration of an example. Thus, use of any such terms should not be taken to limit the spirit and scope of embodiments of the present invention.
As used herein, the term ‘circuitry’ refers to (a) hardware-only circuit implementations (for example, implementations in analog circuitry and/or digital circuitry); (b) combinations of circuits and computer program product(s) comprising software and/or firmware instructions stored on one or more computer readable memories that work together to cause an apparatus to perform one or more functions described herein; and (c) circuits, such as, for example, a microprocessor(s) or a portion of a microprocessor(s), that require software or firmware for operation even if the software or firmware is not physically present. This definition of ‘circuitry’ applies to all uses of this term herein, including in any claims. As a further example, as used herein, the term ‘circuitry’ also includes an implementation comprising one or more processors and/or portion(s) thereof and accompanying software and/or firmware. As another example, the term ‘circuitry’ as used herein also includes, for example, a baseband integrated circuit or applications processor integrated circuit for a mobile phone or a similar integrated circuit in a server, a cellular network device, other network device, and/or other computing device.
As indicated above, some embodiments of the present invention may be employed in methods, apparatuses and computer program products configured to adapt a content segment relating to a user contact based on an importance level of the user contact. In this regard, for example,
As shown in
In some embodiments the user terminal 10 may be capable of communicating with other devices, either directly, or via a network 30. The network 30 may include a collection of various different nodes, devices or functions that may be in communication with each other via corresponding wired and/or wireless interfaces. As such, the illustration of
In an example embodiment, an apparatus 50 is provided that may be employed by devices performing example embodiments of the present invention. The apparatus 50 may be embodied, for example, as any device hosting, including, controlling or otherwise comprising the user terminal 10. However, embodiments may also be embodied on a plurality of other devices such as for example where instances of the apparatus 50 may be embodied on the network 30. As such, the apparatus 50 of
With further regard to
As mentioned above, the apparatus 50 may, in some embodiments, be a mobile terminal (e.g., mobile terminal 10) or a fixed communication device or computing device configured to employ an example embodiment of the present invention. However, in some embodiments, the apparatus 50 may be embodied as a chip or chip set. In other words, the apparatus 50 may comprise one or more physical packages (e.g., chips) including materials, components and/or wires on a structural assembly (e.g., a baseboard). The structural assembly may provide physical strength, conservation of size, and/or limitation of electrical interaction for component circuitry included thereon. The apparatus 50 may therefore, in some cases, be configured to implement embodiments of the present invention on a single chip or as a single “system on a chip.” As such, in some cases, a chip or chipset may constitute means for performing one or more operations for providing the functionalities described herein and/or for enabling user interface navigation with respect to the functionalities and/or services described herein.
The processor 70 may be embodied in a number of different ways. For example, the processor 70 may be embodied as one or more of various processing means such as a coprocessor, a microprocessor, a controller, a digital signal processor (DSP), processing circuitry with or without an accompanying DSP, or various other processing devices including integrated circuits such as, for example, an ASIC (application specific integrated circuit), an FPGA (field programmable gate array), a hardware accelerator, a special-purpose computer chip, or the like. In an example embodiment, the processor 70 may be configured to execute instructions stored in the memory device 76 or otherwise accessible to the processor. Alternatively or additionally, the processor 70 may be configured to execute hard coded functionality. As such, whether configured by hardware or software methods, or by a combination thereof, the processor 70 may represent an entity (for example, physically embodied in circuitry) capable of performing operations according to embodiments of the present invention while configured accordingly. Thus, for example, when the processor 70 is embodied as an ASIC, FPGA or the like, the processor 70 may be specifically configured hardware for conducting the operations described herein. Alternatively, as another example, when the processor 70 is embodied as an executor of software instructions, the instructions may specifically configure the processor to perform the algorithms and/or operations described herein when the instructions are executed. However, in some cases, the processor 70 may be a processor of a specific device (for example, a mobile terminal or network device such as a server) adapted for employing embodiments of the present invention by further configuration of the processor by instructions for performing the algorithms and/or operations described herein. The processor 70 may include, among other things, a clock, an arithmetic logic unit (ALU) and logic gates configured to support operation of the processor.
Meanwhile, the communication interface 74 may be any means such as a device or circuitry embodied in either hardware, software, or a combination of hardware and software that is configured to receive and/or transmit data from/to a network and/or any other device or module in communication with the apparatus 50. In this regard, the communication interface 74 may include, for example, an antenna (or multiple antennas) and supporting hardware and/or software for enabling communications with a wireless communication network (for example, network 30). In fixed environments, the communication interface 74 may alternatively or also support wired communication. As such, the communication interface 74 may include a communication modem and/or other hardware/software for supporting communication via cable, digital subscriber line (DSL), universal serial bus (USB), Ethernet, High-Definition Multimedia Interface (HDMI) or other mechanisms. Furthermore, the communication interface 74 may include hardware and/or software for supporting communication mechanisms such as BLUETOOTH®, Infrared, UWB, WiFi, and/or the like, which are being increasingly employed in connection with providing home connectivity solutions.
The user interface 72 may be in communication with the processor 70 to receive an indication of a user input at the user interface and/or to provide an audible, visual, mechanical or other output to the user. As such, the user interface 72 may include, for example, a keyboard, a mouse, a joystick, a display, a touch screen, a microphone, a speaker, or other input/output mechanisms.
The processor 70 may comprise user interface circuitry configured to control at least some functions of one or more elements of the user interface 72, such as, for example, the speaker, the ringer, the microphone, the display, and/or the like. The processor 70 and/or user interface circuitry comprising the processor 70 may be configured to control one or more functions of one or more elements of the user interface 72 through computer program instructions (for example, software and/or firmware) stored on a memory accessible to the processor 70 (for example, memory device 76, and/or the like).
In some embodiments the apparatus 50 may further include a data manager 78. The processor 70 or other circuitry may be embodied as, include or otherwise control the data manager 78. The data manager 78 may be configured to manage a plurality of data segments which may be associated, for example, with the apparatus 50 and/or the user. The data segments are generally described herein as comprising user contacts which the apparatus 50 may store or otherwise have access to. However, in other embodiments the data segments may relate to various other types of data and information which have content segments related thereto and which may be stored on or otherwise accessible to the apparatus 50. In this regard, data segments, as used herein, may comprise any information which may be organized based on importance.
Returning to the embodiment in which the data segments comprise user contacts, user contacts may comprise persons, businesses, or other entities for which contact information may be associated therewith. For example, user contacts may have associated therewith contact information such as names, addresses, phone numbers, fax numbers, email addresses, and photos of the user contacts or other avatars. The data manager 78 may manage the user contacts and other data segments by, for example, allowing a user to upload, create, edit, and access the user contacts and other data segments.
In some embodiments the apparatus 50 may further include an importance level determiner 80. The processor 70 or other circuitry may be embodied as, include or otherwise control the importance level determiner 80. The importance level determiner 80 may be configured to determine an importance level for a user contact or other data segment. In this regard, the user contacts may be analyzed to determine how important the user contacts are to the user. In some embodiments the user importance level may be binary. In this regard, the user importance level may be either important, or unimportant. However, in other embodiments the user importance levels may comprise multiple levels, or a ranked order of importance for each of the user contacts.
In some embodiments the importance levels for the user contacts may be selected by the user. For example, the importance level determiner 80 may ask the user to rank the user contacts based on importance level or ask the user to select an importance level. In such embodiments determining the importance level of a user contact may comprise receiving a user input comprising the importance level.
In other embodiments the importance level determiner 80 may determine the importance levels for the user contacts without receiving a user input comprising the importance levels. In this regard, the importance level determiner 80 may employ a variety of techniques and methods to determine the importance levels. For example, the importance level may be based on communication frequency, amount of communication around a certain time, amount of communication at the current location of the user/apparatus 50 with different people, etcetera. By way of example, the importance level determiner 80 may record and analyze how often the user communicates with each of the user contacts through email, instant messaging (IM), short messaging service (SMS), multimedia messaging service (MMS), voice communications, video communications, and/or other communication mediums. The importance level determiner 80 may additionally or alternatively determine the importance levels of the user contacts based on the duration of communications, the length of text-based communications, and/or the data usage associated with exchanging communications with the user contacts. In this regard, frequent and lengthy communications with user contacts may be indicative of high importance levels for the user contacts. In some embodiments the importance level determiner 80 may weight outgoing communications more heavily than incoming communications. For example, a user may tend to initiate contact with user contacts of higher importance to the user. However, in other embodiments the importance level determiner 80 may equally weight incoming and outgoing communications or weight incoming communications more heavily. Further, in some embodiments the importance level determiner 80 may weight more recent communications more heavily than older communications. Thereby, older communications may have less of an effect, or no effect, on the importance determination.
Further, in some embodiments the importance level determiner 80 may alternatively or additionally determine importance levels by determining the relationship between the user and the user contacts. For example, the user may input contact information that directly describes the user contacts in some embodiments and the importance level determiner 80 may determine the importance levels by reviewing this information. By way of example, the user may classify or otherwise describe the user contacts as relatives, friends, business associates, etcetera. In other embodiments the user may provide greater details with respect to his or her relationship to the user contacts. For example, a contact may be described as the user's father, or boss. In some embodiments the importance level determiner 80 may determine importance levels by checking communication histories in different social networking services, or by checking to see if the user is friends with a person only through one or more of the social networking services.
However, in some embodiments the importance level determiner 80 may determine the relationship of the user to each of the user contacts without relying on direct user input of this information. For example, the importance level determiner 80 may review communications between the user and the user contacts and look for keywords. In some embodiments the importance level determiner 80 may review salutations and valedictions appearing in messages. Thereby, for example, if the valediction “Love, Mom” appears in one of the user's communications to a user contact, the importance level determiner 80 may determine that this user contact should have a high importance level.
Also, in some embodiments the importance level determiner 80 may determine that groups of user contacts are of importance. The groups of user contacts may be user defined and/or the groups may be determined, for example, by reviewing communications as discussed above. Thereby, for example, the importance level determiner 80 may determine that communications from a soccer team which the user is a part of are important before an upcoming soccer game which is scheduled.
In other embodiments the importance level determiner 80 may determine the importance level based in part on a received user input and based in part on a calculated importance level that may be, for example, calculated using the above-described methods. For example, the user may directly specify the importance level of some user contacts, and the importance level determiner 80 may calculate the importance level for the other user contacts. By way of further example, when the user indicates that a particular user contact is of importance, and this user contact is part of a group of user contacts, the importance level determiner 80 may determine that other user contacts in the group are of importance. Also, in some embodiments the importance level determiner 80 may allow the user to override a calculated importance level for a user contact. For example, although a user may receive frequent emails from a user contact that is a business associate, the user contact may not be important to the user. For example, the emails may relate to daily office roles describing who is out of the office, which may be of little importance to the user. Thereby, the importance level determiner 80 may allow the user to override determined importance levels in some embodiments.
Further, in some embodiments the importance level determiner 80 may learn based on whether the user selects content segments relating to the user contact which is determined to be of importance. For example, if the content segments relating to the user contact which the importance level determiner 80 determines to be importance are not selected or are otherwise ignored multiple times, the importance level determiner may then determine that the user contact is of a lower level of importance than previously calculated. Thereby, the importance level determiner 80 may adjust the importance levels based on how the user responds to the determined importance levels.
Accordingly, the importance level determiner 80 may employ a variety of methods to determine the importance level for the user contacts such as those embodiments described above as well as various other methods that are not described herein. Further, in some embodiments the method by which the importance level determiner 80 determines the importance levels may be user selectable. Thereby, for example, the user may select the method that he or she believes may be more likely to most accurately determine the importance level he or she associates with each of the user contacts.
Additionally, in some embodiments the importance level determiner 80 may determine the importance level for each user contact or other data segment based on one or more contextual characteristics of the user, a data segment (e.g. a user contact), and/or the apparatus 50. Thus, the apparatus 50 may further include a contextual characteristic determiner 82, as illustrated in
Contextual characteristics may include the present time, location, activity, etcetera of the user, the apparatus 50, and/or the user contacts or other data segments. In this regard, the importance levels for user contacts may change over time as the contextual characteristics change. Information relating to the location of the user may, for example, be provided by a GPS module 84, though location information may additionally or alternatively be provided through other means such as triangulation using cell phone towers. The processor 70 or other circuitry may be embodied as, include or otherwise control the GPS module 84. Thus, for example, the contextual characteristic determiner 82 may determine that the user is presently near a user contact based on stored user contact information or shared location information. In such instances, the importance level determiner 80 may determine that the user contact has a high importance level at that point in time based on proximity. For example, if the user receives a call from a friend while the user happens to be near the friend, the user may be more inclined to receive the call because of the possibility for meeting in person with the friend.
By way of further example, the contextual characteristic determiner 82 may determine when the user is sleeping or working or determine contextual characteristics indicative of these activities and provide this information to the importance level determiner 80. For example, the contextual characteristic determiner 82 may determine that the user is home at night based on time and location information. These contextual characteristics may then be used by the importance level determiner 80 to determine the importance level of the user contacts given these contextual characteristics. For example, if in previous circumstances with similar determined contextual characteristics the user has only answered phone calls or responded to messages from certain ones or types of the user contacts, then the importance level determiner 80 may determine that those user contacts have higher importance levels than the other user contacts. Accordingly, in some embodiments the importance level determiner 80 may determine the importance levels of the user contacts based on contextual characteristics, as may be determined by the contextual characteristic determiner 82. Thus, in some embodiments the importance levels may be determined for a variety of contextual characteristics such as user/apparatus location, time of the day, usage history of the apparatus, etcetera. Thus, the determined importance levels of the user contacts may change as the contextual characteristics change in some embodiments.
In some embodiments the apparatus 50 may further include a content segment adaptor 86. The processor 70 or other circuitry may be embodied as, include or otherwise control the content segment adaptor 86. The content segment adaptor 86 may be configured to adapt a content segment relating to the user contact or other data segment based on the importance level. Content segments, as used herein, may include a variety of embodiments of content that the apparatus 50 may output using the user interface 72. For example, content segments may include ring tones and other audio output, vibrations, and displayed content.
In this regard, various forms of content segments may be adapted by the content segment adaptor 86 based on the importance level of the user contact or other data segment to which the content segment relates. By way of example, when the apparatus 50 receives a message, phone call, or other communication from a user contact with a high importance level as determined by the importance level determiner 80, the content segment adaptor 86 may adapt the ring tone to indicate that the call is important. Similarly, the content segment adaptor 86 may adapt a vibration that is outputted when a communication is received. For example, when a communication is received from a high importance user contact, the content segment adaptor 86 may adapt the vibration to a series of rapid vibrations. Further, in some embodiments the content segment adaptor 86 may adapt the content segments such that the same ring tone and/or vibration is outputted by the apparatus 50 for a particular user contact regardless of the communication method. Additionally, note that the user may specify the types of ring tones and/or types of vibrations for various importance levels or user contacts, or the content segment adaptor 86 may choose the ring tones and/or vibrations in some embodiments.
In a further embodiment the content segment adaptor 86 may adapt content elements that are displayed, for example, by the user interface 72. In this regard, the content segment adaptor 86 may in various embodiments adapt the size of a content element, the amount or type of displayed information comprising the content element, the position of the content element, visual effects such as the color or glow of the content segment, etcetera. For example,
However, the message from Sean 104a and Sean's corresponding avatar 106a are positioned out of sequence at the top of the display. In this regard, in some embodiments the content segment adaptor 86 may position content segments out of an ordered sequence in instances in which the importance level for the user contact defines a greatest importance level. For example, in the illustrated embodiment the importance level determiner 80 may have determined that of the user contacts 104a-g, Sean is the most important user contact by, for example, employing one of the routines described above. In some embodiments the importance level determiner 80 may determine the most important user contact from a portion of the entirety of the user contacts. For example, the importance level determiner 80 may determine that Sean is the most important user contact of the user contacts that have sent messages to the user terminal 10 within the past week. Thus, in some embodiments the user contact that defines the greatest importance level may not have the absolute greatest importance level of all the user contacts, but rather may define the greatest importance level of a subset of the user contacts.
As further illustrated in
As additionally illustrated in
As previously discussed, the content segment adaptor 86 may also select a size and color of the content segments based on the importance level. Thus, as illustrated, the suggested contacts section 120 may have a different color than the all contacts section 118, and further, the avatars 106e, fin the suggested contacts section may be larger than the avatars 106h-m in the all contacts section. Accordingly, content segments may be adjusted within the context of the contacts application 114 and various other applications.
Although not shown, content segments may also be adapted based on importance levels within the context of email applications, phone and phone log applications, etcetera. Further, content segments may be adapted in map, calendar, photo, and other applications. For example, content segments showing the location of a user contact or an item related to the user contact on a map may be adapted based on the importance level of the user contact. Calendar items relating to user contacts, such as an event that a user contact is expected to attend may be adapted based on the importance level of the user contact. Further, photos taken by, or including a user contact therein may be adapted based on the importance levels of the user contact. Additionally, in some embodiments new arriving event notifications and missed events displayed, for example, in a status menu may be adapted based on the importance levels of user contacts related thereto. Accordingly, various types of content segments may be adapted in a variety of applications and programs in a variety of different manners based on the importance levels of user contacts. In this regard, the embodiments described and illustrated have been provided for example purposes only.
In terms of methods associated with embodiments of the present invention, the above-described apparatus 50 or other embodiments of apparatuses may be employed. In this regard,
Accordingly, blocks of the flowchart support combinations of means for performing the specified functions. It will also be understood that one or more blocks of the flowchart, and combinations of blocks in the flowcharts, can be implemented by special purpose hardware-based computer systems which perform the specified functions, or combinations of special purpose hardware and computer instructions.
In this regard, one embodiment of a method includes determining an importance level of a user contact at operation 200. Further, the method may include adapting a content segment relating to the user contact based on the importance level at operation 202. Additionally, the method may include providing for output of the content segment at operation 204.
In some embodiments, certain ones of the above-described operations (as illustrated in solid lines in
For example, the method may further comprise determining the importance level for the user contact based on a contextual characteristic at operation 206. The method may additionally include selecting a position of the content segment based on the importance level at operation 208. Accordingly, the method may further include positioning the content segment out of an ordered sequence in instances in which the importance level for the user contact defines a greatest importance level at operation 210. Also, the method may comprise selecting a color of the content segment based on the importance level at operation 212 and/or selecting a size of the content segment based on the importance level at operation 214. Thus, for example, in some embodiments the method may further comprise providing for display of the content segment at operation 216. The method may additionally comprise providing for normalization of the content segment at operation 218.
In an example embodiment, an apparatus for performing the method of
In some embodiments the operation 200 of determining an importance level of a user contact may be conducted by means (e.g. means for determining an importance level of a user contact), such as the data manager 78, the importance level determiner 80, and/or the processor 70. Further, the operation 202 of adapting the content segment relating to the user contact based on the importance level may be conducted by means (e.g. means for adapting a content segment), such as the content segment adaptor 86, and/or the processor 70. Additionally, the operation 204 of providing for output of the content segment may be conducted by means (e.g. means for outputting the content segment), such as the user interface 72, and/or the processor 70.
Also, the operation 206 of determining the importance level for the user contact based on a contextual characteristic may be conducted by means, such as the data manager 78, the contextual characteristic determiner 82, the GPS module 84, the importance level determiner 80, and/or the processor 70. Further, the operation 208 of selecting a position of the content segment based on the importance level and the operation 210 of positioning the content segment out of an ordered sequence in instances in which the importance level for the user contact defines a greatest importance level may be conducted by means, such as the importance level determiner 80, the content segment adaptor 86, and/or the processor 70. Additionally, the operation 212 of selecting a color of the content segment based on the importance level and the operation 214 of selecting a size of the content segment based on the importance level may be conducted by means, such as the content segment adaptor 86, and/or the processor 70. Also, the operation 216 of providing for display of the content segment may be conducted by means, such as the user interface 72, and/or the processor 70. Further, the operation 218 of providing for normalization of the content segment may be conducted by means, such as the user interface 72, the content segment adaptor 86, and/or the processor 70.
Note that although the method and apparatus are generally described above in terms of adapting content segments relating to user contacts, in other embodiments the content segments may relate to other types of data segments. In this regard, as mentioned above, data segments may comprise any information which may be organized based on importance. Accordingly, the examples provided herein relating to user contacts should not be considered to be limiting.
Many modifications and other embodiments of the inventions set forth herein will come to mind to one skilled in the art to which these inventions pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Moreover, although the foregoing descriptions and the associated drawings describe example embodiments in the context of certain example combinations of elements and/or functions, it should be appreciated that different combinations of elements and/or functions may be provided by alternative embodiments without departing from the scope of the appended claims. In this regard, for example, different combinations of elements and/or functions than those explicitly described above are also contemplated as may be set forth in some of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
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| Number | Date | Country | |
|---|---|---|---|
| 20120054631 A1 | Mar 2012 | US |
