CORDLESS SPEAKER PHONE Russian patent published in 2001 - IPC

Abstract RU 2171545 C1

FIELD: communications facilities. SUBSTANCE: cordless speaker phone has base station incorporating controller, radio module, line interface unit, and power unit; mobile handset incorporating radio module, power/charger unit, display, keyboard that functions as handset control including voice control, ringer, transmitter, dynamic receiver, power battery, voice circuit, and handset power circuit, as well as charger incorporating voltage changer, amplifier, loudspeaker, voice circuit, and charger power circuit. In addition, base station has answer-back unit. EFFECT: provision for loudspeaker communications in voice mode and for listening to answer-back unit irrespective of base-station location. 2 cl, 2 dwg

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RU 2 171 545 C1

Authors

Vasil'Ev G.L.

Borisevich A.I.

Nesterov N.I.

Sergienko V.P.

Tushnov P.A.

Jasev I.V.

Dates

2001-07-27Published

1999-12-02Filed