Position reporting cellular telephone

Patent 5625668 Issued on April 29, 1997. Estimated Expiration Date:

April 29, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Emergency vessel location system
Patent #: 4833477
Issued on: 05/23/1989
Inventor: Tendler

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Patent #: 5006985
Issued on: 04/09/1991
Inventor: Ehret, et al.

Cellular position locating system
Patent #: 5043736
Issued on: 08/27/1991
Inventor: Darnell, et al.

Method and apparatus for tracking vehicle location
Patent #: 5428546
Issued on: 06/27/1995
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Cellular terminal for providing public emergency call location information Patent #: 5479482
Issued on: 12/26/1995
Inventor: Grimes

Inventors

Assignee

Trimble Navigation Limited

Application

No. 226773 filed on 04/12/1994

US Classes:

455/456.5, At system equipment (i.e., base station)342/357.1, Combined with telecommunication342/357.13, With storage device (i.e., map or database)342/457, Land vehicle location (e.g., bus, police car455/563Having voice recognition or synthesization

Examiners

Primary: Cumming, William
Assistant: Maung, Nay

Attorney, Agent or Firm

International Classes

H04Q 007/20
H04Q 007/30

Abstract

A cellular telephone system embodiment of the present invention comprises a combination global positioning system (GPS) receiver and cellular transceiver and a data processing facility for converting latitude, longitude, velocity and bearing information provided by the GPS receiver into meaningful descriptors that are spoken with a speech synthesizer back to the cellular transceiver or an outsider who calls in an inquiry to a "1-900" service.