Abstract:
A wireless device-based system provides location-based services by determining the location of the wireless device and arranges for the service and the payment therefor.

Description:
RELATED APPLICATIONS 
   This is a continuation of U.S. patent application Ser. No. 11/345,920, filed Feb. 2, 2006, entitled “Location Based Information System, now U.S. Pat. No. 7,305,243” which is a continuation of U.S. patent application Ser. No. 10/345,991 filed on Jan. 21, 2003, now U.S. Pat. No. 7,050,818, which is a continuation of application Ser. No. 08/608,482 filed on Feb. 28, 1996, entitled “Location Based Service Request System,” now U.S. Pat. No. 6,519,463. 

   FIELD OF INVENTION 
   This invention relates to a system for providing assistance to wireless device users, and more particularly, to a wireless device and location-based information system. 
   BACKGROUND OF THE INVENTION 
   As is now common, central dispatch offices are utilized in the provision of roadside assistance through the utilization of an 800 number. Upon dialing a predetermined 800 number from a wireless phone such as a cellular phone, the central dispatch office, through the utilization of its database, can direct the motorist to a variety of different services. For instance, the central dispatch service can provide information as to the nearest towing service, the nearest gas station, the nearest theatre, the nearest drug store, or, in fact, any service of interest to the motorist for which the dispatch office has information in its database. 
   Moreover, with databases utilized at the central dispatch office, it is possible to keep medical records of individuals owning the phone on file so that in the case of a vehicular accident, these files can be accessed and the appropriate information can be given to rescue authorities. 
   One of the major drawbacks with the respect to such a system is that there is currently no easily implemented way to provide information as to the whereabouts of a vehicle. While, GPS-based systems exist for in-car mapping and other position related applications, such a system is not readily available to every motorist without an extensive retrofit of the vehicle and corresponding cell sites, making such systems infrastructure intense. It is in fact a daunting task to be able to provide GPS-based services by providing a GPS receiver in every motor vehicle, much less on a cost effective basis. Thus, it is only with reluctance that automobile manufacturers are providing automobiles with GPS receivers and antennas. 
   SUMMARY OF INVENTION 
   In the subject system, the problem of providing a cost effective means of providing roadside or other services is implemented by informing central dispatch offices of the location of a vehicle through the utilization of a wireless phone having an associated GPS receiver, antenna, and voice synthesis capability for transmitting not only the identity of the vehicle, but also the location of the vehicle in English or other spoken language. 
   In one embodiment, the phone is located in a handsfree cradle having service-request buttons to cause the phone to dial the central dispatch office with a service request and location of the phone. Through a synthetic voice announcement, when the phone calls the central dispatch office, the verbally announced information is processed by an operator, at which point the latitude and longitude of a vehicle is recorded. The central dispatch office then correlates the position of the vehicle with the services requested, with a match being performed to provide the identity and/or address of the nearest local service provider either to the dispatch operator or to the operator of the motor vehicle. 
   Thus, when traveling in unfamiliar territory, one need only press a button on the handsfree cradle of the phone, at which point the central dispatch office is dialed, and after synthetic voice communication with the dispatch office to indicate the location of the vehicle, two way verbal communication may be established to permit the driver to ask for whatever service he or she wants. This can be taken care of by the dispatch office, or the caller can be directly linked or patched to the service provider. Alternatively, the handsfree cradle may be provided with a number of different service related buttons such as “Gas Station,” “Pharmacy,” “Food,” etc. so that these service providers are directly dialed. 
   As will be appreciated, the subject system provides the central dispatch office not only with the location of the caller, but also the nature of the requested service. This being the case, should a motorist be in an unfamiliar city and seek a particular service, with the touch of a button, the wireless phone is made to dial the central dispatch office, which in turn can either route the call to the appropriate service provider, or provide information back to the motorist so that the motorist can be directed to the service provider and/or the contact the service provider himself. 
   In one embodiment, the wireless phone is available as a unitary device with service-request buttons thereon. Alternatively, when utilized in a vehicle, the phone may be placed in the aforementioned handsfree cradle that has one or more service-request buttons on the cradle. 
   Note that in one embodiment, the cradle is provided with a passive transfer antenna to couple the relatively weak GPS signals from an active GPS antenna mounted outside the car to the internally carried GPS antenna in the phone. The result is to be able to receive the relatively weak GPS signals within the body of the vehicle through the utilization of the transfer antenna, with the transfer antenna being mounted at the handsfree cradle adjacent the GPS antenna that is carried by the unitary phone. 
   The abovementioned handsfree cradle communicates the fact of a service-request button push to a printed circuit board within the phone, with the printed circuit board carrying a CPU, a speech synthesizer and a dialer. The board is connected to the phone bus which is also connected to the handsfree cradle such that when the phone is placed in the handsfree cradle, the service-request buttons cause the phone to dial the appropriate number with the appropriate message and position of the phone. As a result, with a single button push at the handsfree cradle, one or more services can be requested through the corresponding switch closure being transmitted to the CPU on the printed circuit board within the phone. When the switch closure is sensed, the phone is made to dial a predetermined number followed by transmission of the corresponding message. 
   It will be appreciated that any number of service-request buttons may be placed on the handsfree cradle such that the nearest gas station, the nearest pharmacy, or the nearest grocery store can be requested through the dialing of a separate number associated with each of the buttons. In another embodiment, a single “Concierge” button is provided to enable the central dispatch office to call the appropriate service provider directly, and as an added service, pass the call through to the service provider. As such a location-dependent concierge service is provided. In summary, either through a single Concierge button or with multiple specific service-request buttons, the motorist can be given the services that he or she desires due to the provision of the caller&#39;s location from a GPS receiver at the phone. 
   It will be appreciated that the service can be provided either by the central dispatch office which takes care of the individual needs of the motorist, or the motorist can merely be put in touch with the service provider through a direct link of the cell phone call to the service provider. What will be apparent is that regardless of the form the service takes, the transmission of latitude and longitude provides a unique way of selecting the closest service provider. 
   While the subject invention relates to wireless phones in general, for convenience, the remainder of the description of the invention will center on its use with cellular phones. It will be appreciated that utilizing an existing cellular telephone and an internally carried GPS engine also solves the problem of economically providing a GPS receiver within a vehicle, since the cost of the cellular phone along with the GPS receiver is bourn by the carrier and ultimately by the consumer on a monthly charge basis. The above enables a cost effective method of providing roadside assistance, while at the same time providing normal cellular communication through the utilization of a standard cellular phone modified with the GPS-based location system. The above also permits emergency signaling to public service access points or PSAPs as to the location of an accident or other emergency. 
   As will be seen, in one embodiment a unitary cellular phone is provided with an internal GPS engine, an internal GPS antenna, and an internal printed circuit board having a speech synthesizer for providing a verbal rendition of the latitude and longitude of the cellular phone, along with a dialer which is coupled to the cell phone bus to control the functioning and the modulation of the cellular phone. 
   While the above has described a unitary cellular phone with a GPS receiver, a speech synthesizer, a CPU and a GPS antenna within the cellular phone, in an alternative embodiment, the GPS receiver, the location/speech circuit including speech synthesizer and CPU, and an external GPS antenna may be provided in the abovementioned handsfree cradle. In this embodiment, circuits within the cradle cause the phone to dial and provide modulation of the phone with a verbal message through the normal bus structure of the cellular phone. As a result, standard cellular phones can be modified through the utilization of such a handsfree cradle to provide the needed location function. 
   It will, therefore, be appreciated that the GPS receiver and the speech synthesizer and dialer board may be carried in the handsfree cradle rather than within the cellular phone. The information from the GPS unit is provided, in this instance, to the CPU that is coupled to the speech synthesizer which couples the speech synthesizer output to the microphone input to the cell phone bus. The dialer board causes the phone to dial the indicated number by appropriate signaling over the cell phone bus. In this manner, by providing a handsfree cradle with a GPS receiver and speech and dialer board, vehicles can be retrofitted readily and inexpensively to provide a location-dependent request for services. 
   Whether the cellular telephone is a unitary device or whether the GPS receiver and other circuitry are built into the handsfree cradle, a cost effective system is provided to enable dispatch offices to correlate the position of a vehicle with the service required. 
   While the above has been described in connection with vehicle related services, it will be appreciated that taking the cellular phone out of the car and providing it with a service-request button can provide the non-motorist with a means of obtaining services that the individual might want. For instance, when a pedestrian in an unfamiliar city is seeking the nearest drug store, a Concierge button on the unitary cellular phone can provide the central dispatch office with the same information as described above, regardless of whether or not the GPS-based cellular phone is within a vehicle. 
   It will also be appreciated, while the subject system has been described in connection with a synthetic voice annunciation of the position of the phone, digital systems involving digital signaling of the same information are within the scope of this invention. 
   In summary, a wireless phone based system is provided to accommodate users of phones for transmitting information as to the location of certain services such as gasoline stations, movie theatres, drug stores, etc., in which the phone includes a GPS receiver with the phone adapted to call a predetermined number requesting the desired service and providing the location of the phone. In one embodiment for vehicular applications, the GPS receiver is co-located with the phone, with the phone being carried in a handsfree cradle having a number of service-request buttons, such that depression of a service-request button activates the phone through its bus structure to call a predetermined number and provide the identity of the caller along with the caller&#39;s location. In a further embodiment, a single button is utilized to cause the phone to dial a concierge service, in which the concierge service has operators and a database, such that the operator to direct the caller to whatever service the caller desires having been apprised of the location of the phone, this to allow the operator can key in the latitude and longitude of the phone and access the database of services both as to the type of service and as to the location of the closest service provider. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     These and other features of the subject invention will be better understood taken in conjunction with the Detail Description in conjunction with the Drawings of which: 
       FIG. 1  is a diagrammatic and block diagram of the subject system illustrating the utilization of the cellular phone/GPS combination to transmit the location of the cellular phone to a central dispatch office for the provision of location-dependent services; 
       FIG. 2  is a diagrammatic illustration of a cellular phone housing a GPS receiver, GPS antenna, and speech and dialer board for the control and the modulation of the cellular phone as well as a service-request button coupled to the CPU/speech/dialer board for providing a unitary device; and, 
       FIG. 3  is a block diagram of the speech and dialer board of  FIG. 2  illustrating its connection to RF and audio circuitry within the cellular phone. 
   

   DETAILED DESCRIPTION 
   Referring now to  FIGS. 1 and 2 , a cellular phone  10  within a vehicle  12  includes an internal GPS antenna  14  coupler to a GPS receiver  16 , with the output of the GPS receiver coupled to a speech and dialer board  18  carried within the upper portion of cellular phone  10 . 
   In the illustrated embodiment, cellular phone  10  is carried within a handsfree cradle  20  to which is attached the traditional handsfree microphone  22  and to which is coupled to an external speaker  24  as well as a vehicle mounted cellular phone antenna  26 . Also carried within handsfree cradle  20 , is transfer antenna  28  in close proximity to GPS antenna  14 , with transfer antenna  28  coupled to an external active GPS antenna  30  which is powered by the vehicle battery as shown at  32 . 
   Handsfree cradle  20  is conveniently located adjacent vehicle console  34  and carries a number of service request buttons  36 ,  38 ,  40 , and  42 , corresponding respectively as illustrated to a request for gas station location, drug store location, movie theatre location, and food services location Also located on handsfree cradle  20 , is a CONCIERGE button  44 , which is utilized to obtain concierge services from a central office dispatch center as will described. 
   Each of buttons  36 - 44  is utilized to cause cellular phone  10  to dial a predetermined number when the corresponding button is depressed. This is accomplished through the cellular phone bus, with buttons  36 - 44  coupled to an internally carried interface board  46  that, upon sensing a switch closure, provides a suitable signal to the bus between it and the cellular phone for causing the cellular phone to dial a predetermined number. 
   The result of the depression of any one of the service-request buttons is the activation of the cellular phone to dial the predetermined number and to transmit the requisite information either verbally or digitally that there is a service request, the vehicle number, the latitude and longitude of the cell phone as sensed by the GPS receiver, along with the cellular phone number for both billing and call-back purposes. 
   It will be appreciated that once having established contact with a central office dispatch center, not only is the particular service request known, but operators at the dispatch center can talk directly with the requesting individual. 
   In order for this to be accomplished, a dispatch center generally indicated by reference character  50  includes a telephone  52  coupled to a local exchange  54  which is in turn coupled to a cell site  56  by a land line  58 , such that the location of the cell phone is made known to the central office dispatch center. 
   What is received at the central office dispatch center is a service request, the position of the cellular phone placing the service request, a vehicle identification number, if desired, and the cellular phone number of the cellular phone initiating the call. 
   While the following operation may be automatically implemented, the subject system will described in terms of the synthesized voice verbal annunciation of the service request, position, vehicle identification number and cell phone number, as reported to an operator at the central office dispatch center. 
   Upon receipt of a call, the operator types in the service request, the latitude and longitude, and, optionally, the vehicle identification number and cell phone number at a keypad  60  which encodes the service request at  62  and the position at  64 , the indicated data being coupled to a CPU  66  which accesses a database  68 . The database has incorporated therein the location of the particular service provider, the services rendered by the service provider, and, optionally, the availability of the service provider, the rates for the service, and any other information useful in the provision of the service. 
   Since database  68  contains the location of the service provider, this is correlated with the position of the cellular phone as generated at  64 , with a unit  70  selecting the closest service provider for the particular service requested. The option then is to switch the call from the cellular phone directly to the service provider via switch  72  so that the caller of the services may be directly patched to the service provider. Alternatively, the central office dispatch center may be interfaced with the service provider directly such that the dispatch center places a call at  74  to the particular service provider. 
   In any event, the closest service provider is identified and is contacted either by the caller or the dispatch center so that the requisite services can be rendered. Because the cellular phone number or the vehicle identification number or both are provided to the central dispatch office, charges for the cellular based service request may be invoiced to the caller. 
   For convenience, a monitor  76  may be provided with maps  78  on which the location of the caller, in this case vehicle location  80 , is depicted by a cursor  82 . In this manner, the operator at the central office dispatch center can track the progress of the vehicle and can verbally communicate with the service provider as to the location of the caller. 
   It is also possible that database  68  have incorporated therein medical information of the owner of the cellular phone so that emergency services can be dispatched from the central dispatch office. For this purpose, an emergency button  84  is provided under a protective cover  86  which when pushed can either be made to dial 911 directly, or can be made to dial the dispatch center. The information transmitted from the cellular phone to the central office dispatch center, would thus, be a “MAYDAY” request followed by latitude and longitude to enable the central dispatch office to call the appropriate authorities. 
   Referring now to  FIG. 2 , cell phone  10  is shown as incorporating GPS receiver or engine  16 , with speech and dialer board  18  being located ahead of the GPS engine. As can be seen, emergency button  84  is mounted to the speech and dialer board, with cover  86  being in place over emergency button  84  to prevent accidental actuation. As pictured, GPS antenna  14  is coupled to GPS engine  16  via connector  88 , with location information coming from GPS engine  16  to speech and dialer board  18  via the NEMA 0183 bus  90 . Also as depicted, a bus  92  runs between speech and dialer board  18  to cellular phone  10  for the control thereof and the modulation and the modulation section thereof. 
   If the system is to be provided as a unitary device, phone  10  is provided with one or more service-request buttons  94  coupled to speech and dialer board  18  via line  96 . This avoids having to provide a handsfree cradle and makes the service-request system completely portable. 
   Referring now to  FIG. 3 , cellular phone  10 , in general, has RF circuitry  100  and audio/digital circuitry  102  for the provision of cellular phone calls. Speech and dialer board  18  includes CPU  104  which includes a hardware UART  106  and a software UART  108 , with CPU  104  being coupled to a speech synthesizer  107  for the purpose of providing the requisite service-request message via an audio line  108  through an audio mixer  110  to an audio in terminal  112  of the audio/digital circuitry. An E.sup.2 ROM  114  is utilized to store the preprogrammed telephone numbers and other data that is used by CPU  104  to control the operation of cell phone  10  through its audio/digital circuitry  102 . For this purpose, a TX data line  116  is provided to control the dialer section and all phone related functions for cellular phone  10 . 
   It will be appreciated that CPU  104  provides control of speech synthesizer  107  via control lines  120 , with a crystal  122  providing the speech clock. 
   Automatic turn-on of the cellular phone upon depression of a service-request button, is accomplished through a power enable transistor circuit  124  which is utilized to turn on the cellular phone, with the power being derived from phone battery  126  as illustrated. Note that the turning off of switched power by virtue of the turn off of the cellular phone is sensed by transistor circuitry generally illustrated at  128  so that CPU  104  can be placed in its low power drain mode. 
   As illustrated, handsfree cradle  20  has a cradle connector  130  to which service request buttons  36 ,  38 ,  40  and  44  may be connected. These service requests are coupled to CPU  104  via software UART  108  over TX data line  132  so as to cause CPU  104  to initiate the appropriate service requests and to cause cell phone  10  to dial the appropriate number. 
   In the programming of E-PROM  114 , an audio output of speech synthesizer  107  is utilized to drive an internal speaker of cell phone  110 , not shown, via speaker driver  134  controlled by CPU  104  via volume control  136 . 
   Also provided as inputs to CPU  104  is the aforementioned emergency button switch  84 , a test button switch  144 , an enter button switch  146 , and a program switch  148  for the testing of the system and for the entering of predetermined numbers into E.sup.2 ROM  114 . 
   Also provided at the cell phone is an LED indicator  140  driven by transistor circuit  142  to indicate at the cell phone that a GPS fix has been achieved. 
   A receiver mute line  150  is provided from cradle  130  for muting car-mounted broadcast receivers, and an ignition sense line  152  is provided for informing the cellular phone that the handsfree cradle has been connected. A speaker out line  154  is provided from the cellular phone to the handsfree cradle for driving speaker  24  and a backup switch protection line  156  is provided for both informing CPU  104  that there is a call in progress and to provide this information to the handsfree cradle. 
   The call-in-progress line  156 , called the; “back-up switch line,” is utilized by CPU  104  to request further services, in the form of a 911 back-up call when after the 911 button has been pushed, the call has been terminated to the PSAP. The falling of the call-in-progress flag causes CPU  104  to have cell phone  10  dial a central office dispatch number with a specialized type of emergency service request. In one embodiment, the service request is to have the operators at the dispatch center first call the cellular phone to see if emergency services have been dispatched, and then to call the particular PSAP involved to assure that services have been rendered. 
   It will be appreciated that the system described in connection with  FIG. 3  incorporates all of the functions on an internally carried speech and dialer board  18  carried within cell phone  10 . However, as mentioned above, the entire function of the CPU, and in fact, the GPS receiver and active patch antenna can be carried within handsfree cradle  10  so that all that is necessary to initiate the call is controlling the normal cellular phone bus from the handsfree cradle. 
   However, providing all functions in the unitary phone results in the ability to request services from a unitary device without having to provide a handsfree cradle. As such, the subject system incorporates the concept of providing services regardless of whether or not the cellular phone is in a vehicle. 
   Having above indicated a preferred embodiment of the present invention, it will occur to those skilled in the art that modifications and alternatives can be practiced within the spirit of the invention. It is accordingly intended to define the scope of the invention only as indicated in the following claims.