Wireless hands-free conference telephone system

Details Wireless hands-free conference telephone system Wireless hands-free conference telephone system

1985-08-28

1987-05-26

Lev, Robert

Telephonic communications

Audio message storage, retrieval, or synthesis

379 58, 379266, 379262, H04Q 704

Patent

active

046691081

ABSTRACT:
A wireless hands-free conference telephone system includes an FM transmitter having multi-directional sound pick-up capability and battery power is adapted for remote wireless transmission of sounds originating in the area adjacent the transmitter to a unitary receiver, amplifier and voice switcher adapted for signal conducting connection to a conventional telephone system. The receiver portion of the unitary system is adapted for receiving the signal from the FM transmitter. The amplifier provides power to drive loudspeakers which radiate the sound incoming from the telephone system. A voice switching circuit is positioned between the telephone, the transmitter and the loudspeaker circuit, and is able to ascertain signal strength from the transmitter circuit and the incoming telephone line, discern which is the stronger signal, and increase the gain of that signal while decreasing the gain of the opposing signal.

REFERENCES:
patent: 4555592 (1985-11-01), Deinzer

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