×

Cellular terminal for providing public emergency call location information

  • US 5,479,482 A
  • Filed: 09/26/1994
  • Issued: 12/26/1995
  • Est. Priority Date: 08/30/1993
  • Status: Expired due to Term
First Claim
Patent Images

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.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×