Methods and apparatus for communication

Details Methods and apparatus for communication Methods and apparatus for communication

2006-06-27

2006-06-27

Eng, George (Department: 2688)

Telecommunications

Radiotelephone system

Emergency or alarm communication

C455S404100, C455S456100

Reexamination Certificate

active

07068994

ABSTRACT:
A communication system according to various aspects of the present invention comprises one or more remote units. The communication system may also include at least one communication center. The remote units may also be configured to communicate with each other. The communication center and/or the remote unit may be configured to determine the location of another remote unit.

REFERENCES:
patent: 5418537 (1995-05-01), Bird
patent: 5848373 (1998-12-01), DeLorme et al.
patent: 6172640 (2001-01-01), Durst et al.
patent: 6236358 (2001-05-01), Durst et al.
patent: 6421001 (2002-07-01), Durst et al.
patent: 6748223 (2004-06-01), Fraccaroli
patent: 6836653 (2004-12-01), Kang
patent: 2005/0070305 (2005-03-01), Krasner et al.

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