Portable telephone system having a battery saver feature

Details Portable telephone system having a battery saver feature Portable telephone system having a battery saver feature

1974-10-29

1976-06-08

Claffy, Kathleen H.

179 1VC, 325152, 325 22, H04M 508

Patent

active

039625532

ABSTRACT:
A battery saving system for a portable duplex communications system such as a portable telephone system includes a voice operated transmitter within each portable unit which automatically transmits radio signals upon application of audio signals thereto and discontinues transmission upon termination of the audio signals to conserve battery power. A companion receiver includes a fast acting squelch system to substantially eliminate the noise bursts occurring between transmissions by said portable unit.

REFERENCES:
patent: 3104392 (1963-09-01), Towler
patent: 3169221 (1965-02-01), Franchi
patent: 3328695 (1967-06-01), Ruthenberg
patent: 3397401 (1968-08-01), Winterbottom
patent: 3471787 (1969-10-01), Morrison, Jr.
patent: 3473055 (1969-10-01), Olson
patent: 3586978 (1971-06-01), Van Gorder
patent: 3626112 (1971-12-01), Henquet

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