Method and apparatus for geographic-based communications service

Information

  • Patent Grant
  • 8631128
  • Patent Number
    8,631,128
  • Date Filed
    Tuesday, July 17, 2012
    12 years ago
  • Date Issued
    Tuesday, January 14, 2014
    11 years ago
Abstract
An apparatus includes memory and a processor. The processor is operable to receive identification information of a user from a portable computing device. The processor is also operable to access the memory to identify a previous trip record based on the identification information of the user and to identify a user preference based on the previous trip record. The processor is further operable to generate reservation information based on the user preference, where the reservation information is associated with a requested trip of the user.
Description
FIELD OF THE DISCLOSURE

The disclosure generally relates to a geographic-based communications service and, more particularly, is concerned with an apparatus and method for using known locations of wireless local area network access points (APs) to service mobile users (MUs) of portable smart devices (e.g., notebook, personal computers, PDA, etc.) who are in the vicinity of these APs.


BACKGROUND

As technology improvements result in smaller, lighter and more portable computing devices, a wide variety of new applications and users will emerge. Users will not only operate such devices in stand alone mode, but with portability, users will also require the ability to send and receive information through such devices at any location. The need to communicate will arise in circumstances where hard wired links may not be readily available or practical or when the user of the portable computing device cannot be reached immediately. Moreover, a result of user mobility is that the precise location of the user is often variable or not determined. Conventional communications systems for computing devices are not equipped to handle such communication scenarios.


Commercially available personal computers or other similar devices are generally equipped with industry standard interface ports for driving a peripheral device such as a printer, a plotter, or a modem. While operating in an unknown, remote location not connected to a network, the portable personal computer user may be unaware of messages waiting for him. In addition, conventionally, the user must wait until reaching an office or other place with appropriate equipment to receive such messages and to transmit or print documents or other information prepared by the user on his personal device.


By way of example and not limitation, one type of mobile user is the traveller who passes through airports or similar mass transit centers (e.g., subway commuters), uses ground transportation and stays in a hotel. In a typical scenario, a traveller may use a personal computer to perform calculations or prepare documents on a personal computing device during an airplane flight. Simultaneously, associates may leave messages for the traveller on a network. In conventional systems, the users's work product and messages destined for the user are not available until the user arrives at a location where a wired connection to the user's network is available.


A further example of inefficiencies for the traveller concerns travel arrangements themselves. After arriving at an airport, the traveller proceeds to a car rental desk or to some other transportation location. The traveller typically waits in line while the car rental agency inquires about automobile preference, driver's license, method of payment, type of insurance required, etc. Having experienced some delay, the traveller is now on his way to a business location or hotel. Upon arriving at a hotel check-in/registration desk, the traveller often experiences further delay waiting in line and providing the check-in clerk with routine information such as address, length of stay, type of room desired, method of payment, etc. In addition, the business traveller must call back to his office to check for telephone messages, thereby incurring further delays.


While accessing data bases for information about the traveller, his preferences and requirements can reduce such delays, a common characteristic is that the pending arrival or presence of the traveller is not known to those who can act in advance. Further, conventional systems cannot generally locate a mobile user of a personal computing device and take advantage of that information to reduce the time required to complete routine activities or to provide the user options that can enhance the user's productivity.


In another example, when a user dials a telephone number to an automatic teller machine (ATM) locator, the user is prompted to key in his area code and exchange prefix. The locator system then identifies one or more ATMs within the user's area. However, the system requires the user to call in and cannot locate the user any more accurately than the telephone exchange area. Thus, the user could be advised of an ATM quite a physical distance from the user's location.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 is a representation of the geographic-based communications service system, according to the disclosure; and



FIG. 2 is a flow chart showing a mobile unit interfacing with an access point, according to the system of FIG. 1.





DETAILED DESCRIPTION

According to the disclosure, mobile users communicate with wireless local area networks within the range of an access point (AP). When a user passes an access point, the access point recognizes the user, and the user's device can then retrieve data (telephone, E-mail messages, etc.) waiting for the user and transmit information (E-mail messages, print documents, requests for information from service providers, etc.) that the user may have for transmission to a desired recipient. For instance, this process could occur as a user exits an airplane and is detected by an access point in an airport.


Accordingly, the present disclosure is directed toward a method and apparatus for using known locations of local area network APs (access points) to service mobile users who are in the vicinity of these APs. Such access points and mobile units typically communicate with each other in a wireless manner. The method according to the disclosure includes the steps of: (a) detecting the presence of a mobile unit in the vicinity of an access point and (b) transmitting/receiving information from the mobile unit to/from the network through the access point.


According to the disclosure, information and services can be provided by various providers connected to the network which are able to respond to unanticipated requests or which have acquired knowledge about the user's requirements, preferences and habits over a period of time and have extrapolated information from the user's past practices for probable future actions consistent with these past actions.


For example, in one application, an access point receives a print job from a user's mobile unit and sends it to a printer available at a destination point designated by the user so that the document is printed and available to the user upon his arrival at his destination. In another application according to the disclosure, upon detecting the arrival of a user's mobile unit at a destination, a message, for example, an E-mail message, is sent to the user's rental car agency. The agency can take appropriate actions so that the user's rental car is ready and the user does not waste time waiting in line. Using a similar approach, a user can be pre-registered at a hotel so that his room is ready upon arrival.


Thus, according to the disclosure, a geographic-based communications service system for mobile users includes a mobile unit for transmitting and receiving information and a plurality of access points connected to a network and arranged at known locations in a geographic region for transmitting the information to and receiving the information from said mobile unit. One of the access points detects the presence of a mobile unit and sends a signal to the network. A plurality of information providers are connected to the network. The network accesses the information providers based on the signal received from a mobile unit via the access points to provide data to the mobile unit or to another entity on behalf of the user of the mobile unit. In particular, the known location of the access point detecting the presence of the mobile unit defines the location of said mobile unit. Based on the location of the mobile unit as detected by the AP, a service provider on the network can take actions appropriate to the user's location, such as notifying a car rental agency of the user's presence or notifying the user of canceled flights and adjustments to the user's itinerary. Further according to the disclosure, clocks in the user's mobile device and event schedules can be updated automatically to correspond to the present time in the time zone where the access point detecting the user's mobile unit is located.



FIG. 1 shows a geographic-based communications service system, generally designated 1, according to the disclosure. The system includes a mobile unit (e.g., portable computer) 5, an AP (access point) 10, an information provider 20, a management information base (MIB) 25, and a centralized network 15. The information provider 20 will typically have a processor 21 and memory 22 with controlled access thereto. Typically, access point 10 and mobile unit 5 communicate in a wireless manner. Thus, mobile unit 5 and access point 10 would be equipped with an appropriate transmitter and receiver compatible in power and frequency range to establish such a wireless communication link. In addition, mobile unit would also be equipped with a code generator which generates an identification code that can be transmitted to and recognized by the access point 10 or a system accessed through access point 10. Such an identification code allows recognition of a user before providing access to system services, thereby providing a measure of security and a service billing mechanism.



FIG. 2 is a flow chart showing an implementation of the communication between the mobile unit 5 and an access point 10. In step 30, the access point 10 determines whether the mobile unit 5 is within the range of the access point 10. In steps 35 and 40, the access point 10 scans the mobile unit 5 and determines whether the mobile unit I.D. (identity) matches a prestored I.D., and in step 45, the communication between the mobile unit 5 and the access point 10 begins. The communication between mobile unit 5 and access point 10 may include sending and receiving information which may include text, voice data and video data.


As illustrated in FIG. 2 a first step according to the disclosure may be establishing a connection between a mobile unit and an access point. Referring again to FIG. 1, the mobile unit 5 can send a beacon signal that is picked up by one of the APs 10 located in a plurality of locations within a geographic region. When the beacon signal is picked up by a particular AP 10, the beacon signal is transmitted back to the management information base (MIB) 25 by AP 10. Since the location of the access point is defined and known by MIB 25, detection of the presence of the mobile unit by an AP 10 allows MIB 25 to know exactly where the mobile user is located at any given time. For example, the MIB could store the latitude, longitude, altitude, and other geographic information such as a local map of the area of each access point.


The precision available in this type of mapping scheme is distinguished from that typically achieved in a cellular telephone system. In a cellular telephone system a user transmits a beacon signal at a fixed frequency. When the user moves from a first “cell” to a second “cell”, the receiver located at the midpoint of the first cell no longer picks up the beacon signal, and the receiver located at the midpoint of the second cell picks up the beacon signal. A cellular telephone “handoff” in which the phone call is now under control of the second cell then takes place. It is only possible to locate the user to a relatively large area defined by the cells. There is no provision for locating the user more precisely within the cell. Thus, a cellular system is limited in its ability to provide services requiring the precise location of the user.


In the present disclosure, the mobile unit may determine its own location. The mobile unit's whereabouts may not have to be tracked. For example, upon establishing a connection with an AP 10, the mobile unit 5 can transmit a message inquiring “Where is this AP?” Upon receiving the answer that the AP 10 is located at the user's destination airport, the mobile unit can then transmit an E-mail to a car rental agency or hotel to AP 10. AP 10 routes the message through a network connected to AP 10 so that the user's car or hotel room is ready upon his arrival. Once the message is provided to the AP, tracking of the user may be discontinued.


In another approach according to the disclosure, one or more selected APs 10 may be programmed to watch for the arrival of a particular mobile unit (target mobile unit). Upon detecting the presence of the target mobile unit, the AP 10 establishing the link with the target mobile unit sends a message directly to the rental car agency, hotel, etc. Since the message has been sent, other APs may then be directed to cease watching for the target mobile unit.


Another feature according to the disclosure may enable the user to access a service provider over a network connected through the access point. For example, upon establishing its location, a mobile unit can direct an inquiry through the AP over the network connected to the user's bank to locate the nearest ATM. Since the user's location is established with relative precision by the location of the AP, the service provider may respond with a message such as “Straight ahead to exit 3, turn right and proceed two blocks.” The message may be routed to the user through the same AP.


According to the disclosure, service may be initiated by the mobile unit's transmission of an inquiry requiring a response. Alternatively, service may be initiated by an element of the network, such as a service provider, when an AP 10 detects the presence of a mobile unit. As an element of the network, the AP 10 may access its memory to initiate the service or transmit a message over the network to a service provider who initiates the appropriate service.


A system according to the disclosure may include a plurality of APs and mobile units and may be configured to allow all users access to all service providers on a network or to allow selected users access to selected service providers, depending on a service profile contracted for by the user. For example, according to the disclosure, system software may be programmed to provide service gates in which a user identification code is compared with a list of authorized codes for access to the particular service. In addition, users may contract for unlimited access for a fixed fee or for time billed access or some combination thereof. Service usage records for billing and other purposes may be maintained in an automated database, so that users may be billed by a single entity that maintains the network of APs or individually by each service provider.


Assume, for example, that a user of the mobile unit 5 is located at an airport and that several APs 10 are located at the same airport. The mobile unit 5 is connected to an antenna 6, and the AP 10 is connected to an antenna 8 which can both receive and transmit radio frequency (RF) signals at designated transmit and receive frequency bands. RF signals over-the-air from AP 10 are received by the antenna 6, and sent to mobile unit 5.


The mobile unit 5 may send information to the AP 10, for example, in order to retrieve messages or obtain information needed by the user or to send messages and data to other users. These messages may be entered by the user through the mobile unit 5 or may be automatically generated, as in the previously described case of sending a message to a car rental company signalling the user's arrival at the airport. During this process, antenna 6 may transmit the RF signal which may be received by antenna 8 and sent to AP 10.


In one embodiment, when a beacon signal output from the mobile unit 5 is detected and received by AP 10, information in the beacon signal identifying the mobile unit is transmitted back to network 15. The information sent back to network 15 includes the identification number of the mobile unit 5 and AP 10, thereby identifying both the user and his location to the network. Using this identification and location data, network 15 may provide desired services (or arranges to provide desired services by accessing appropriate providers) and essential information to the user of the mobile unit 5. Based on the type of information, network 15 may access one or more information providers 20 to provide the information or services to the user. One or more information providers 20 may be coupled to network 15 in a ring-network configuration, a star-network configuration, or other type of connection known in the art.


Other query/response approaches to link the mobile unit 5 and AP 10 may also be employed within the scope of the disclosure. For example, AP 10 may scan its coverage area, thereby causing a mobile unit 5 in the area to generate a response using active or passive circuitry. Such a response may either be a simple presence indication causing the AP 10 to transmit a further inquiry message requesting the mobile unit's identification information. Alternatively, in response to an AP scan, the mobile 5 my transmit its identification data immediately. Since a mobile unit may be in an area serviced by an AP for some time, either the AP or the mobile unit may be configured to determine if any correspondence is necessary before engaging in further communication.


In a simplified configuration according to the disclosure, the mobile unit may be configured as a device to locate a user through the APs 10. In this case, a processor on the network 15 would then take the appropriate action, such as sending an E-mail to the user's car rental agency, upon detection of the user's presence by an AP.


Network 15, shown in FIG. 1, may store information in the MIB 25. MIB 25 is a mechanism, such as a memory, which may enable persistent storage of information used by network 15. Examples of such information include a directory of all the elements (APs, mobile units, etc) in the network, the topology of the network, characteristics of individual network elements, characteristics of connection links, performance and trend statistics, and any information which is of interest in the operation of the network 15. For example, the MIB may store the precise longitude, latitude, altitude and other geographic information pinpointing the location of each AP 10. Alternatively, an access point may be located by its proximity to another known location. For example, an access point location may be defined as a particular hotel known to be a particular address or having known latitude and longitude coordinates. The extent of geographic area covered by an access point may be defined in similar ways.


In order to reduce message traffic over the network, all or part of MIB may be stored at one or more access points 10. In particular, static information which does not change, or changes relatively infrequently, may be stored in the AP 10. Thus, as shown in FIG. 1, AP 10 may include a memory 27 for storing at least a portion of the MIB. For example, memory 27 may store the location of the AP 10, the local map, local services and other information, such that routine requests for information from the mobile unit, such as “Where am I” requests may be serviced without communicating with the network, leaving more resources for other message traffic.


By way of example and not limitation, service and information providers 20 may include car rental agencies, hotels, restaurants, airline reservation centers, banks, taxi services, bus and train reservation offices, printing services, on-line database services, message services, and E-mail providers, so that the user may receive messages. The system according to the disclosure may also provide the user access to updates on specific databases, such as a database maintained by the user's employer (e.g., a company rolodex) or the user's own personal databases and any other service which may be used in a remote manner.


Any of the service and information providers 20 may maintain in memory data files on members and subscribing merchants and may have the ability to extract data from past transactions for each of the users to facilitate future plans. In this way, the service providers may have available the information to learn the past habits and preferences of their subscribers and provide corresponding services for new transactions.


For example, upon learning that a business traveller is scheduling a trip to Austin, service and information providers 20 may consider the previous trips by the traveller, develop a suggested itinerary, and book travel, hotel, car and restaurant reservations. The information providers 20 may acquire knowledge about the habits of the traveller over a period of time, may store the information in a memory, and may extrapolate information from past habits for probable future actions consistent with these past actions. For example, when arranging for a rental car, the information stored in the service provider's memory for a particular subscriber may indicate that the subscriber typically requests a four door intermediate size car. Referencing this information, the service provider may now reserve a similar vehicle, unless otherwise instructed by the mobile unit.


A system according to the disclosure may also have processing and memory access to operate in an interactive or adaptable mode. For example, when the user of the mobile unit 5 arrives at the airport, his identity, as well as the fact that he is at the airport, may be detected by AP 10 and transmitted to the network, for example using the beacon signal emitted from his mobile unit 5, as previously described. One or more service providers with access to transportation schedules, flight status information, hotel or automobile rental information, weather information, ground maps or other information desired by the user may employ network 15 to send the user updated information about whether a connecting flight has been delayed, alternative routings, where to go to pick up a pre-specified rental car, directions to a preferred hotel and other types of information.


Since the location of the AP 10 communication with a mobile unit 5 may be known precisely, service and information provider 20 may employ processors to provide only suitable information to the user and may track the user's last reported location. For example, since updated information can be sent to the mobile unit 5, based on the location of the mobile unit 5, information that is pertinent only to the fact that the user of the mobile unit 5 is at the airport may be sent back to the mobile unit 5 via the communication path between AP 10 and the mobile unit 5. Other information may be sent at other times.


For purposes of illustration, FIG. 1 shows one AP 10 and one service and information provider 20 connected to network 15. However, any number of such APs and service and information providers may typically be connected to network 15 to service any number of mobile units, subject to physical limitations, such as constraints on bandwidth.


In a variation of a system according to the disclosure, the mobile unit 5 may initiate a request for information from the network 15. For example, the user of the mobile unit 5 may find the location of the nearest automatic teller machine (ATM) by entering the request into the mobile unit 5, which may be received by the nearest AP 10. AP 10 may forward this request for information to the network 15. Network 15 may route the request to a service and information provider who may obtain the requested information and may transmit the requested information back to mobile unit 5 through AP 10.


In another variation of a system according to the disclosure, network 15 may be connected to other types of communications networks, such as a public switched telephone network (PSTN), whereby the user of the mobile unit 5 may send and receive information from/to the PSTN or other communication network through a service provider. The service provider may employ processors and other apparatus to convert protocols and data formats from those used on the network 15 to those compatible with the PSTN or other communication network. For example, the user may receive facsimile information from a PSTN connected to the network 15.


Another feature according to the disclosure may be the ability to adjust time clocks in the mobile unit to display and generate schedules using the correct time in the time zone where the user is located. This feature may be accomplished by storing in the MIB a time zone identifying code for each access point and during communication between an access point and a mobile unit, notifying the mobile unit of the correct zone. Alternatively, the time zone information may be stored in the access point or the access point may be instructed to check with a time reference (e.g., Greenwich Mean Time) and calculate local time. Alternatively, the time zone may be determined for the longitude of the access point stored in the MIB. This determination may be made either by the information provider and transmitted as a time zone message to the mobile unit or may be determined in the mobile unit using the longitude information of the access point.


Still another feature according to the disclosure may be the ability to provide customized messages based on the location of the active access point or on the user's profile. For example, a user accessing a network through an access point in a hotel may be provided information about promotions offered by that hotel or other affiliated hotels, airlines, car rental agencies or other providers of goods and services.


The apparatus and method according to the disclosure and many of its attendant advantages may be understood from the foregoing description and various changes may be made in form, construction and arrangement of the parts thereof without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages.

Claims
  • 1. An apparatus comprising: a processor;a memory accessible to the processor, the memory comprising instructions that are executable by the processor to perform operations including: receiving identification information of a user from a portable computing device via a wireless access point being accessed by the portable computing device;accessing the memory to identify a previous trip record based on the identification information of the user;identifying a user preference based on the previous trip record;generating reservation information based on the user preference, wherein the reservation information is associated with a requested trip of the user;receiving a location identifier from the wireless access point, wherein the location identifier indicates a geographic location of the wireless access point;identifying a third party service provider for providing services related to the requested trip of the user based on the geographic location of the wireless access point; andautomatically transmitting a request to the third party service provider to make a reservation based on the reservation information.
  • 2. The apparatus of claim 1, wherein the wherein the user preference is associated with a user profile and wherein the user profile is associated with the identification information.
  • 3. The apparatus of claim 1, wherein the location identifier is received from a database coupled to the access point.
  • 4. The apparatus of claim 1, wherein the identification information is received from the portable computing device when the portable computing device is within a coverage area of the wireless access point.
  • 5. The apparatus of claim 1, wherein the previous trip record is associated with a user profile and wherein the user profile is associated with the identification information.
  • 6. The apparatus of claim 1, wherein the user preference includes a rental car preference, a travel preference, a hotel preference, a restaurant preference, or any combination thereof.
  • 7. The apparatus of claim 1, wherein the reservation includes a rental car reservation, a travel reservation, a hotel reservation, a restaurant reservation, or any combination thereof.
  • 8. A method comprising: transmitting, from a portable computing device to an information provider, via a wireless access point being accessed by the portable computing device, identification information of a user;identifying a previous trip record based on the identification information of the user;identifying a user preference based on the previous trip record;generating reservation information based on the user preference, wherein the reservation information is associated with a requested trip of the user;receiving a location identifier from the wireless access point, wherein the location identifier indicates a geographic location of the wireless access point,identifying a third party service provider for providing services related to the requested trip of the user based on the geographic location of the wireless access point; andautomatically transmitting a request to the third party service provider to make a reservation based on the reservation information.
  • 9. The method of claim 8, wherein the user preference includes a rental car preference, a travel preference, a hotel preference, a restaurant preference, or any combination thereof.
  • 10. The method of claim 8, wherein the user preference is associated with a user profile and wherein the user profile is associated with the identification information.
  • 11. The method of claim 8, wherein the previous trip record is associated with a user profile and wherein the user profile is associated with the identification information.
  • 12. The method of claim 8, wherein the location identifier is received from a database coupled to the access point.
  • 13. The method of claim 8, wherein the identification information is received from the portable computing device when the portable computing device is within a coverage are of the wireless access point.
  • 14. The method of claim 8, wherein the reservation includes a rental car reservation, a travel reservation, a hotel reservation, a restaurant reservation, or any combination thereof.
  • 15. An apparatus comprising: a receiver configured to receive identification information of a user from a portable computing device via a wireless access point being accessed by the portable computing device;a processor to execute instructions stored by a memory to perform operations including: identifying a previous trip record based on the identification information of the user;identifying a user preference based on the previous trip record;generating reservation information based on the user preference, wherein the reservation information is associated with a requested trip of the user;receiving a location identifier from the wireless access point, wherein the location identifier indicates a geographic location of the wireless access point,identifying a third party service provider for providing services related to the requested trip of the user based on the geographic location of the wireless access point; anda transmitter configured to automatically transmit a request to the third party service provider to make a reservation based on the reservation information.
  • 16. The apparatus of claim 15, wherein the location identifier is received from a database coupled to the access point.
  • 17. The apparatus of claim 15, wherein the reservation includes a rental car reservation, a travel reservation, a hotel reservation, a restaurant reservation, or any combination thereof.
PRIORITY CLAIM

The present application is a continuation of U.S. patent application Ser. No. 11/924,215, filed on Oct. 25, 2007, which is a continuation of U.S. patent application Ser. No. 10/776,293, filed on Feb. 11, 2004, which is a continuation of U.S. patent application Ser. No. 09/755,649, filed on Jan. 5, 2001, now U.S. Pat. No. 6,697,018, which is a divisional of U.S. patent application Ser. No. 09/382,551, filed on Aug. 25, 1999, now U.S. Pat. No. 6,326,918, which is a continuation of U.S. patent application Ser. No. 09/186,131, filed on Nov. 4, 1998, now U.S. Pat. No. 5,969,678, which is a continuation of U.S. patent application Ser. No. 08/470,004, filed on Jun. 6, 1995, now U.S. Pat. No. 5,835,061, all of which are incorporated by reference in their entirety.

US Referenced Citations (447)
Number Name Date Kind
3636421 Takeishi et al. Jan 1972 A
4021780 Narey et al. May 1977 A
4255619 Saito Mar 1981 A
4445118 Taylor et al. Apr 1984 A
4536647 Atalla et al. Aug 1985 A
4757267 Riskin Jul 1988 A
4841560 Chan et al. Jun 1989 A
4845504 Roberts et al. Jul 1989 A
4922516 Butler et al. May 1990 A
4973952 Malec et al. Nov 1990 A
4974170 Bouve et al. Nov 1990 A
4977399 Price et al. Dec 1990 A
5089814 DeLuca et al. Feb 1992 A
5095532 Mardus Mar 1992 A
5121126 Clagett Jun 1992 A
5122795 Cubley et al. Jun 1992 A
5131020 Liebesny et al. Jul 1992 A
5185857 Rozmanith et al. Feb 1993 A
5214793 Conway et al. May 1993 A
5223844 Mansell et al. Jun 1993 A
5243652 Teare et al. Sep 1993 A
5245608 Deaton et al. Sep 1993 A
5264822 Vogelman et al. Nov 1993 A
5265070 Minowa Nov 1993 A
5303393 Noreen et al. Apr 1994 A
5315636 Patel May 1994 A
5321242 Heath, Jr. Jun 1994 A
5347632 Filepp et al. Sep 1994 A
5361091 Hoarty et al. Nov 1994 A
5363245 Borello Nov 1994 A
5363377 Sharpe Nov 1994 A
5365516 Jandrell Nov 1994 A
5371794 Diffie et al. Dec 1994 A
5389773 Coutts et al. Feb 1995 A
5390237 Hoffman, Jr. et al. Feb 1995 A
5404505 Levinson Apr 1995 A
5432841 Rimer Jul 1995 A
5444444 Ross Aug 1995 A
5451757 Heath, Jr. Sep 1995 A
5455807 Nepple et al. Oct 1995 A
5461627 Rypinski Oct 1995 A
5464822 Christophers et al. Nov 1995 A
5475735 Williams et al. Dec 1995 A
5485163 Singer et al. Jan 1996 A
5487103 Richardson Jan 1996 A
5493309 Bjornholt Feb 1996 A
5497414 Bartholomew Mar 1996 A
5504482 Schreder Apr 1996 A
5511111 Serbetcioglu et al. Apr 1996 A
5511233 Otten Apr 1996 A
5512908 Herrick Apr 1996 A
5513263 White et al. Apr 1996 A
5519760 Borkowski et al. May 1996 A
5528248 Steiner et al. Jun 1996 A
5539395 Buss et al. Jul 1996 A
5544354 May et al. Aug 1996 A
5559520 Barzegar et al. Sep 1996 A
5561704 Salimando Oct 1996 A
5566235 Hetz Oct 1996 A
5570555 Ferguson et al. Nov 1996 A
5581479 McLaughlin Dec 1996 A
5583864 Lightfoot et al. Dec 1996 A
5586254 Kondo et al. Dec 1996 A
5588042 Comer Dec 1996 A
5590196 Moreau Dec 1996 A
5590398 Matthews Dec 1996 A
5592470 Rudrapatna et al. Jan 1997 A
5594779 Goodman Jan 1997 A
5596625 LeBlanc Jan 1997 A
5602843 Gray Feb 1997 A
5608854 Labedz et al. Mar 1997 A
5610973 Comer Mar 1997 A
5625364 Herrick et al. Apr 1997 A
5625668 Loomis et al. Apr 1997 A
5627549 Park May 1997 A
5636245 Ernst et al. Jun 1997 A
5646632 Khan et al. Jul 1997 A
5654959 Baker et al. Aug 1997 A
5657375 Connolly et al. Aug 1997 A
5661492 Shoap et al. Aug 1997 A
5663734 Krasner Sep 1997 A
5664948 Dimitriadis et al. Sep 1997 A
5666481 Lewis Sep 1997 A
5670964 Dent Sep 1997 A
5677905 Bigham Oct 1997 A
5687212 Kinser, Jr. et al. Nov 1997 A
5689431 Rudow et al. Nov 1997 A
5694453 Fuller et al. Dec 1997 A
5701301 Weisser, Jr. Dec 1997 A
5704049 Briechle Dec 1997 A
5712899 Pace, II Jan 1998 A
5713075 Threadgill et al. Jan 1998 A
5714948 Farmakis et al. Feb 1998 A
5717688 Belanger et al. Feb 1998 A
5720033 Deo Feb 1998 A
5724521 Dedrick Mar 1998 A
5727057 Emery et al. Mar 1998 A
5729680 Belanger et al. Mar 1998 A
5771283 Chang et al. Jun 1998 A
5774534 Mayer et al. Jun 1998 A
5778304 Grube et al. Jul 1998 A
5790974 Tognazzini Aug 1998 A
5794210 Goldhaber et al. Aug 1998 A
5796727 Harrison et al. Aug 1998 A
5798733 Ethridge Aug 1998 A
5806018 Smith et al. Sep 1998 A
5812763 Teng Sep 1998 A
5819155 Worthe et al. Oct 1998 A
5826195 Westerlage et al. Oct 1998 A
5835061 Stewart Nov 1998 A
5838774 Weisser, Jr. Nov 1998 A
5842010 Jain et al. Nov 1998 A
5845211 Roach Dec 1998 A
5852775 Hidary Dec 1998 A
5855007 Jovicic et al. Dec 1998 A
5870555 Pruet et al. Feb 1999 A
5870724 Lawlor et al. Feb 1999 A
5875186 Belanger et al. Feb 1999 A
5875401 Rochkind Feb 1999 A
5878126 Velamuri et al. Mar 1999 A
5880958 Helms et al. Mar 1999 A
5881131 Farris et al. Mar 1999 A
5884284 Peters et al. Mar 1999 A
5887259 Zicker et al. Mar 1999 A
5889953 Thebaut et al. Mar 1999 A
5892454 Schipper et al. Apr 1999 A
5896440 Reed et al. Apr 1999 A
5897640 Veghte et al. Apr 1999 A
5903454 Hoffberg et al. May 1999 A
5903636 Malik May 1999 A
5907544 Rypinski May 1999 A
5920846 Storch et al. Jul 1999 A
5922040 Prabhakaran Jul 1999 A
5923702 Brenner et al. Jul 1999 A
5933420 Jaszewski et al. Aug 1999 A
5938721 Dussell et al. Aug 1999 A
5949867 Sonnenberg Sep 1999 A
5950130 Coursey Sep 1999 A
5961593 Gabber et al. Oct 1999 A
5963866 Palamara et al. Oct 1999 A
5963913 Tenneuse et al. Oct 1999 A
5968176 Nessett et al. Oct 1999 A
5969678 Stewart Oct 1999 A
5982867 Urban et al. Nov 1999 A
5983091 Rodriguez Nov 1999 A
5987381 Oshizawa Nov 1999 A
5991287 Diepstraten et al. Nov 1999 A
5995015 DeTemple et al. Nov 1999 A
6006090 Coleman et al. Dec 1999 A
6009398 Mueller et al. Dec 1999 A
6011975 Emery et al. Jan 2000 A
6018293 Smith Jan 2000 A
6018726 Tsumura Jan 2000 A
6026151 Bauer et al. Feb 2000 A
6028921 Malik et al. Feb 2000 A
6047327 Tso et al. Apr 2000 A
6055637 Hudson et al. Apr 2000 A
6058106 Cudak et al. May 2000 A
6067082 Enmei May 2000 A
6067297 Beach May 2000 A
6076080 Morscheck et al. Jun 2000 A
6085086 La Porta et al. Jul 2000 A
6091956 Hollenberg Jul 2000 A
6101381 Tajima et al. Aug 2000 A
6101443 Kato et al. Aug 2000 A
6112186 Bergh et al. Aug 2000 A
6115669 Watanabe et al. Sep 2000 A
6122520 Want et al. Sep 2000 A
6133853 Obradovich et al. Oct 2000 A
6138003 Kingdon et al. Oct 2000 A
6138119 Hall et al. Oct 2000 A
6141609 Herdeg et al. Oct 2000 A
6144645 Struhsaker et al. Nov 2000 A
6154152 Ito Nov 2000 A
6154637 Wright et al. Nov 2000 A
6157829 Grube et al. Dec 2000 A
6157946 Itakura et al. Dec 2000 A
6163274 Lindgren Dec 2000 A
6167255 Kennedy, III et al. Dec 2000 A
6182226 Reid et al. Jan 2001 B1
6184829 Stilp Feb 2001 B1
6185426 Alperovich et al. Feb 2001 B1
6185484 Rhinehart Feb 2001 B1
6192230 VanBokhorst et al. Feb 2001 B1
6192314 Khavakh et al. Feb 2001 B1
6202054 Lawlor et al. Mar 2001 B1
6205478 Sugano et al. Mar 2001 B1
6208854 Roberts et al. Mar 2001 B1
6208866 Rouhollahzadeh et al. Mar 2001 B1
6226277 Chuah May 2001 B1
6229477 Chang et al. May 2001 B1
6229810 Gerszberg et al. May 2001 B1
6233329 Urban et al. May 2001 B1
6233452 Nishino May 2001 B1
6236360 Rudow et al. May 2001 B1
6236940 Rudow et al. May 2001 B1
6246361 Weill et al. Jun 2001 B1
6259405 Stewart et al. Jul 2001 B1
6263209 Reed et al. Jul 2001 B1
6278938 Alumbaugh Aug 2001 B1
6285665 Chuah et al. Sep 2001 B1
6285931 Hattori et al. Sep 2001 B1
6298234 Brunner Oct 2001 B1
6308273 Goertzel et al. Oct 2001 B1
6311069 Havinis et al. Oct 2001 B1
6317718 Fano Nov 2001 B1
6321092 Fitch et al. Nov 2001 B1
6324396 Vasa et al. Nov 2001 B1
6326918 Stewart Dec 2001 B1
6327254 Chuah Dec 2001 B1
6327357 Meek et al. Dec 2001 B1
6332127 Bandera et al. Dec 2001 B1
6332163 Bowman-Amuah Dec 2001 B1
6337810 Yamasaki et al. Jan 2002 B1
6340958 Cantu et al. Jan 2002 B1
6343290 Cossins et al. Jan 2002 B1
6353664 Cannon et al. Mar 2002 B1
6359880 Curry et al. Mar 2002 B1
6360101 Irvin Mar 2002 B1
6363421 Barker et al. Mar 2002 B2
6366561 Bender Apr 2002 B1
6377548 Chuah Apr 2002 B1
6377810 Geiger et al. Apr 2002 B1
6377982 Rai et al. Apr 2002 B1
6385531 Bates et al. May 2002 B2
6385591 Mankoff May 2002 B1
6389426 Turnbull et al. May 2002 B1
6393482 Rai et al. May 2002 B1
6400722 Chuah et al. Jun 2002 B1
6407673 Lane Jun 2002 B1
6408307 Semple et al. Jun 2002 B1
6414635 Stewart et al. Jul 2002 B1
6414950 Rai et al. Jul 2002 B1
6415019 Savaglio et al. Jul 2002 B1
6418308 Heinonen et al. Jul 2002 B1
6421441 Dzuban Jul 2002 B1
6421714 Rai et al. Jul 2002 B1
6427073 Kortesalmi et al. Jul 2002 B1
6427119 Stefan et al. Jul 2002 B1
6430276 Bouvier et al. Aug 2002 B1
6430562 Kardos et al. Aug 2002 B1
6442391 Johansson et al. Aug 2002 B1
6442479 Barton Aug 2002 B1
6442687 Savage Aug 2002 B1
6449272 Chuah et al. Sep 2002 B1
6449497 Kirbas et al. Sep 2002 B1
6452498 Stewart Sep 2002 B2
6463533 Calamera et al. Oct 2002 B1
6470378 Tracton et al. Oct 2002 B1
6470447 Lambert et al. Oct 2002 B1
6473626 Nevoux et al. Oct 2002 B1
6477382 Mansfield et al. Nov 2002 B1
6477526 Hayashi et al. Nov 2002 B2
6484029 Hughes et al. Nov 2002 B2
6484092 Seibel Nov 2002 B2
6484148 Boyd Nov 2002 B1
6496491 Chuah et al. Dec 2002 B2
6496931 Rajchel et al. Dec 2002 B1
6505046 Baker Jan 2003 B1
6505048 Moles et al. Jan 2003 B1
6505049 Dorenbosch Jan 2003 B1
6505120 Yamashita et al. Jan 2003 B2
6505163 Zhang et al. Jan 2003 B1
6512754 Feder et al. Jan 2003 B2
6516055 Bedeski et al. Feb 2003 B1
6516416 Gregg et al. Feb 2003 B2
6519252 Sallberg Feb 2003 B2
6519458 Oh et al. Feb 2003 B2
6522876 Weiland et al. Feb 2003 B1
6526275 Calvert Feb 2003 B1
6526349 Bullock et al. Feb 2003 B2
6532418 Chun et al. Mar 2003 B2
6545596 Moon Apr 2003 B1
6546257 Stewart Apr 2003 B1
6560442 Yost et al. May 2003 B1
6560461 Fomukong et al. May 2003 B1
6577643 Rai et al. Jun 2003 B1
6577644 Chuah et al. Jun 2003 B1
6594482 Findikli et al. Jul 2003 B1
6618474 Reese Sep 2003 B1
6618593 Drutman et al. Sep 2003 B1
6622016 Sladek et al. Sep 2003 B1
6628627 Zendle et al. Sep 2003 B1
6628928 Crosby et al. Sep 2003 B1
6628938 Rachabathuni et al. Sep 2003 B1
6633633 Bedingfield Oct 2003 B1
6640184 Rabe Oct 2003 B1
6647257 Owensby Nov 2003 B2
6647269 Hendrey et al. Nov 2003 B2
6650901 Schuster et al. Nov 2003 B1
6654610 Chen et al. Nov 2003 B1
6662014 Walsh Dec 2003 B1
6665536 Mahany Dec 2003 B1
6665718 Chuah et al. Dec 2003 B1
6671272 Vaziri et al. Dec 2003 B2
6675017 Zellner et al. Jan 2004 B1
6675208 Rai et al. Jan 2004 B1
6677894 Sheynblat et al. Jan 2004 B2
6697018 Stewart Feb 2004 B2
6697783 Brinkman et al. Feb 2004 B1
6701160 Pinder et al. Mar 2004 B1
6701251 Stefan et al. Mar 2004 B2
6704311 Chuah et al. Mar 2004 B1
6716101 Meadows et al. Apr 2004 B1
6721406 Contractor Apr 2004 B1
6725048 Mao et al. Apr 2004 B2
6732080 Blants May 2004 B1
6732101 Cook May 2004 B1
6732176 Stewart et al. May 2004 B1
6738808 Zellner et al. May 2004 B1
6754504 Reed Jun 2004 B1
6754582 Smith et al. Jun 2004 B1
6759960 Stewart Jul 2004 B2
6772064 Smith et al. Aug 2004 B1
6799049 Zellner et al. Sep 2004 B1
6801509 Chuah et al. Oct 2004 B1
6816720 Hussain et al. Nov 2004 B2
6819929 Antonucci et al. Nov 2004 B2
6820053 Ruwisch Nov 2004 B1
6820062 Gupta et al. Nov 2004 B1
6829475 Lee et al. Dec 2004 B1
6850758 Paul et al. Feb 2005 B1
6867733 Sandhu et al. Mar 2005 B2
6868074 Hanson Mar 2005 B1
6874011 Spielman Mar 2005 B1
6876858 Duvall et al. Apr 2005 B1
6898569 Bansal et al. May 2005 B1
6937869 Rayburn Aug 2005 B1
6937998 Swartz et al. Aug 2005 B1
6954147 Cromer et al. Oct 2005 B1
6985747 Chithambaram Jan 2006 B2
6999572 Shaffer et al. Feb 2006 B1
7005985 Steeves Feb 2006 B1
7009556 Stewart et al. Mar 2006 B2
7023995 Olsson Apr 2006 B2
7043231 Bhatia et al. May 2006 B2
7058594 Stewart et al. Jun 2006 B2
7069319 Zellner et al. Jun 2006 B2
7085555 Zellner et al. Aug 2006 B2
7103368 Teshima Sep 2006 B2
7103476 Smith et al. Sep 2006 B2
7106843 Gainsboro et al. Sep 2006 B1
7110749 Zellner et al. Sep 2006 B2
7116977 Moton et al. Oct 2006 B1
7124101 Mikurak Oct 2006 B1
7130630 Enzmann et al. Oct 2006 B1
7139722 Perrella et al. Nov 2006 B2
7155199 Zalewski et al. Dec 2006 B2
7181225 Moton et al. Feb 2007 B1
7181529 Bhatia et al. Feb 2007 B2
7188027 Smith et al. Mar 2007 B2
7190960 Wilson et al. Mar 2007 B2
7203502 Wilson et al. Apr 2007 B2
7212829 Lau et al. May 2007 B1
7224978 Zellner et al. May 2007 B2
7236799 Wilson et al. Jun 2007 B2
RE39717 Yates et al. Jul 2007 E
7245925 Zellner Jul 2007 B2
7260378 Holland et al. Aug 2007 B2
7272493 Hamrick et al. Sep 2007 B1
7292939 Smith et al. Nov 2007 B2
7295924 Smith et al. Nov 2007 B2
7362851 Contractor Apr 2008 B2
7383052 Moton et al. Jun 2008 B2
8095647 Stewart Jan 2012 B2
8199733 Stewart Jun 2012 B2
8250204 Stewart Aug 2012 B2
8391265 Stewart Mar 2013 B2
20010001239 Stewart May 2001 A1
20010007450 Begum Jul 2001 A1
20010021646 Antonucci et al. Sep 2001 A1
20010028301 Geiger et al. Oct 2001 A1
20010034709 Stoifo et al. Oct 2001 A1
20010049275 Pierry et al. Dec 2001 A1
20010051911 Marks et al. Dec 2001 A1
20020035474 Alpdemir Mar 2002 A1
20020037709 Bhatia et al. Mar 2002 A1
20020037722 Hussain et al. Mar 2002 A1
20020037731 Mao et al. Mar 2002 A1
20020037744 Bhatia et al. Mar 2002 A1
20020037750 Hussain et al. Mar 2002 A1
20020038362 Bhatia et al. Mar 2002 A1
20020038384 Khan et al. Mar 2002 A1
20020038386 Bhatia Mar 2002 A1
20020046090 Stewart Apr 2002 A1
20020052781 Aufricht et al. May 2002 A1
20020077083 Zellner et al. Jun 2002 A1
20020077084 Zellner et al. Jun 2002 A1
20020077118 Zellner et al. Jun 2002 A1
20020077130 Owensby Jun 2002 A1
20020077897 Zellner et al. Jun 2002 A1
20020087335 Meyers et al. Jul 2002 A1
20020090932 Bhatia et al. Jul 2002 A1
20020095312 Wheat Jul 2002 A1
20020102993 Hendrey et al. Aug 2002 A1
20020107027 O'Neil Aug 2002 A1
20020120713 Gupta et al. Aug 2002 A1
20020161637 Sugaya Oct 2002 A1
20020174147 Wang et al. Nov 2002 A1
20030003990 Von Kohorn Jan 2003 A1
20030016233 Charpentier Jan 2003 A1
20030018527 Filepp et al. Jan 2003 A1
20030140088 Robinson et al. Jul 2003 A1
20030169151 Ebling et al. Sep 2003 A1
20040002329 Bhatia et al. Jan 2004 A1
20040097243 Zellner et al. May 2004 A1
20040111269 Koch Jun 2004 A1
20040164898 Stewart Aug 2004 A1
20040186902 Stewart Sep 2004 A1
20040203903 Wilson et al. Oct 2004 A1
20040205198 Zellner et al. Oct 2004 A1
20040266453 Maanoja et al. Dec 2004 A1
20050017068 Zalewski Jan 2005 A1
20050043036 Ioppe et al. Feb 2005 A1
20050060365 Robinson et al. Mar 2005 A1
20050096067 Martin May 2005 A1
20050114777 Szeto May 2005 A1
20050151655 Hamrick et al. Jul 2005 A1
20050246097 Hamrick et al. Nov 2005 A1
20050272445 Zellner Dec 2005 A1
20060030335 Zellner et al. Feb 2006 A1
20060030339 Zhovnirovsky et al. Feb 2006 A1
20060059043 Chan et al. Mar 2006 A1
20060089134 Moton et al. Apr 2006 A1
20060094447 Zellner May 2006 A1
20060099966 Moton et al. May 2006 A1
20060105784 Zellner et al. May 2006 A1
20060106537 Hamrick et al. May 2006 A1
20060164302 Stewart Jul 2006 A1
20060167986 Trzyna et al. Jul 2006 A1
20060183467 Stewart et al. Aug 2006 A1
20060189327 Zellner et al. Aug 2006 A1
20060189332 Benco et al. Aug 2006 A1
20060195570 Zellner et al. Aug 2006 A1
20060253252 Hamrick et al. Nov 2006 A1
20070010260 Zellner et al. Jan 2007 A1
20070042789 Moton et al. Feb 2007 A1
20070105565 Enzmann et al. May 2007 A1
20070124721 Cowing et al. May 2007 A1
20070136603 Kuecuekyan Jun 2007 A1
20070250920 Lindsay Oct 2007 A1
20080045241 Stewart Feb 2008 A1
20080051108 Stewart Feb 2008 A1
20080057924 Stewart Mar 2008 A1
20080096529 Zellner Apr 2008 A1
20120078723 Stewart Mar 2012 A1
20130036010 Stewart Feb 2013 A1
Non-Patent Literature Citations (13)
Entry
U.S. Appl. No. 11/403,093, “Distributed Network Communication System to Provide Wireless Access to a Computing Device at a Reduced Rate”, Final Office Action dated Mar. 10, 2011, 19 pages.
Azuma, Ronald, Tracking Requirements for Augmented Reality, Communications of the ACM, vol. 36 No. 7, Jul. 1993, ACM Press, New York, NY, pp. 50-51.
Chen, Harry et al. Dynamic Service Discovery for Mobile Computing: Intelligent Agents Meet Jini in the Aether, Cluster Computing, Special Issue on Internet Scalability, vol. 4, Issue 4, Oct. 2001, Springer Science + Business Media, New York, NY, pp. 343-354.
Dingus, Thomas A. et al., Human Factors Engineering the TravTek Driver Interface, Vehicle Navigation and Information Systems Conference Proceedings, Part II, Oct. 1991, Society of Automotive Engineers, Incorporated, Warrendale, PA, pp. 749-755.
Egenhofer, Max J., Spatial SQL: A Query and Presentation Language, IEEE Transactions on Knowledge and Data Engineering, vol. 6, No. 1, Feb. 1994, IEEE Educational Activities Department, Piscataway, NJ, pp. 86-95.
Fitzmaurice, George W., Situated Information Spaces and Spatially Aware Palmtop Computers, Communication of the ACM, vol. 36, No. 7, Jul. 1993, ACM Press, New York, NY, pp.39-49.
Harter, Andy et al., A Distributed Location System for the Active Office, IEEE Network, Jan./Feb. 1994, IEEE Communications Society, New York, NY, pp. 62-70.
Muffat, Michael et al., European Cooperation on Dual Mode Route Guidance-Perspectives for Advanced Research Partners, Vehicle Navigation and Information Systems Conference Proceedings, Part II, Oct. 1991, Soc. of Automotive Engineers, Inc., Warrendale, PA, pp. 929-935.
Phail, Fred, The Power of a Personal Computer for Car Information and Communications Systems, Vehicle Navigation and Information Systems Conference Proceedings, Part 1, Oct. 1991, Society of Automotive Engineers, Inc., Warrendale, PA, pp. 389-395.
Schilit, Bill N. et al., Disseminating Active Map Information to Mobile Hosts, IEEE Network, Sep./Oct. 1994, IEEE Communications Society, New York, NY, pp. 22-32.
Spreitzer, Mike et al., Providing Location Information in a Ubiquitous Computing Environment, Proceedings of the Fourteenth ACM Symposium on Operating Systems Principles, Dec. 1993, ACM Press, New York, NY, pp. 270-283.
Want, Roy et al., The Active Badge Location System, ACM Transactions on Information Systems, vol. 10, No. 1, Jan. 1992, ACM Press, New York, NY, pp. 91-102.
White, Marvin, Emerging Requirements for Digital Maps for In-Vehicle Pathfinding and Other Traveller Assistance, Vehicle Navigation and Information Systems Conference Proceedings, Part 1, Oct. 1991, Society of Automotive Engineers, Inc., Warrendale, PA, pp. 179-184.
Related Publications (1)
Number Date Country
20120284066 A1 Nov 2012 US
Divisions (1)
Number Date Country
Parent 09382551 Aug 1999 US
Child 09755649 US
Continuations (5)
Number Date Country
Parent 11924215 Oct 2007 US
Child 13550924 US
Parent 10776293 Feb 2004 US
Child 11924215 US
Parent 09755649 Jan 2001 US
Child 10776293 US
Parent 09186131 Nov 1998 US
Child 09382551 US
Parent 08470004 Jun 1995 US
Child 09186131 US