Cellular terminal for providing public emergency call location information
First Claim
1. A cellular telephone set for establishing public emergency telephone calls, comprising:
- means for dialing telephone numbers;
means for detecting a dialed non-public emergency number;
means for placing a normal telephone call in response to the detection of the dialed non-public emergency telephone number;
means for detecting a dialed public emergency telephone number;
means for placing a public emergency telephone call to a cellular switching system inn response to the detection of the dialed public emergency telephone number;
means for determining geo-coordinates defining the location of the cellular telephone set in response to the detection of the dialed public emergency telephone number; and
means for transmitting the geo-coordinates to the cellular switching system and for simultaneously establishing a voice communication path to the cellular switching system which is used for voice communication in response to the detection of thee dialed public emergency telephone number.
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0 Petitions
Accused Products
Abstract
A cellular terminal for transmitting information defining its location upon placing a 911 call. The cellular terminal includes a global satellite positioning (GPS) device; and upon the user of the cellular terminal placing an emergency telephone call, the cellular terminal interrogates the GPS device to obtain the geo-coordinates. The cellular terminal then transmits the geo-coordinates to a cellular telecommunication switching system. The cellular switching system or a public safety answering point (PSAP) system responding to the 911 call converts the geo-coordinates into location information. In addition, the cellular terminal transmits to the cellular telecommunication switching system pre-defined vehicle description information if the cellular terminal is being utilized within a vehicle. If the cellular terminal is a hand held unit, the cellular terminal can be programmed to transmit personal characteristics of the person using the cellular terminal. In another embodiment, the cellular terminal obtains the geo-coordinates from the GPS device and converts the geo-coordinates to location information using information stored internal to the cellular terminal. The location information is transmitted to the PSAP via the cellular switching system rather than the geo-coordinates.
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Citations
59 Claims
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1. A cellular telephone set for establishing public emergency telephone calls, comprising:
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means for dialing telephone numbers; means for detecting a dialed non-public emergency number; means for placing a normal telephone call in response to the detection of the dialed non-public emergency telephone number; means for detecting a dialed public emergency telephone number; means for placing a public emergency telephone call to a cellular switching system inn response to the detection of the dialed public emergency telephone number; means for determining geo-coordinates defining the location of the cellular telephone set in response to the detection of the dialed public emergency telephone number; and means for transmitting the geo-coordinates to the cellular switching system and for simultaneously establishing a voice communication path to the cellular switching system which is used for voice communication in response to the detection of thee dialed public emergency telephone number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A cellular telephone set for establishing public emergency telephone calls, comprising:
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means for dialing telephone numbers; means for detecting a dialed non-public emergency number; means for placing a normal telephone call in response to the detection of the dialed non-public emergency telephone number; means for detecting a dialed public emergency telephone number; means for placing a public emergency telephone call to a cellular switching system in response to the detection of the dialed public emergency telephone number; means for determining location information defining the location of the cellular telephone set in response to the detection of the dialed public emergency telephone number; and means for transmitting the location information to the cellular switching system and for establishing a voice communication path to the cellular switching system which is used for voice communication in response to the detection of the dialed public emergency telephone number. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for establishing public emergency telephone calls by a cellular telephone set which has a dialing mechanism, comprising:
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detecting a dialed non-public emergency number; placing a normal telephone call in response to the detection of the dialed non-public emergency telephone number detecting a dialed public emergency telephone number; placing a public emergency telephone call to a cellular switching system in response to the detection of the dialed public emergency telephone number; determining geo-coordinates defining the location of the cellular telephone set in response to the detection of the dialed public emergency telephone number; transmitting the geo-coordinates to the cellular switching system by the cellular telephone set in response to the detection of the dialed public emergency telephone number; and establishing a voice communication path to the cellular switching system which is used for voice communication in response to the detection of the dialed public emergency telephone number. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method for establishing public emergency telephone calls by a cellular telephone set which has a dialing mechanism, comprising:
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detecting a dialed non-public emergency number; placing a normal telephone call in response to the detection of the dialed non-public emergency telephone number detecting a dialed public emergency telephone number; placing a public emergency telephone call to a cellular switching system in response to the detection of the dialed public emergency telephone number; determining location information defining the location of the cellular telephone set in response to the detection of the dialed public emergency telephone number; transmitting the location information to the cellular switching system by the cellular telephone set in response to the detection of the dialed public emergency telephone number; and establishing a voice communication path to cellular switching which is used for voice communication in response to the detection of the dialed public emergency telephone number. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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Specification