Uniden Corporation

Uniden America Corporation

Kazuhiko Shimizu

Takahiro Kudo

Ronald Lee Lipp

Hiroki Ohno

Takashi Odagiri

Susumi Ohashi

Zhao Min

Makoto Ehara

Atsushi Kaneda

A relay lifter comprises a hook switch unit for turning ON/OFF a hook switch in response to a talk switch, a voice switching unit for switching connection of an aural signal in said corded telephone set between a transmitter/receiver of said corded telephone set and a cordless telephone set, and a bell sound detection signal transfer unit, a bell sound is outputted from said cordless telephone set when a bell sound is detected and an incoming call is accepted, a hook switch is turned ON/OFF using a hook switch ON/OFF unit, and connection of an aural signal in said corded telephone set is switched to said cordless telephone set for transmitting and receiving voice using said cordless telephone set.

Telephone system and bell sound detecting method thereof

The is provided by the present invention a telephone system with high versatility comprising a corded telephone set, a cordless telephone set, and a relay lifter, wherein said relay lifter comprises a hook switch unit for turning ON/OFF a hook switch of the corded telephone set according to a first control signal responding to the talk switch, and a voice switching unit for switching connection of an aural signal in the corded telephone set according to a second control signal between a transmitter/receiver of the corded telephone set and the cordless telephone set, and switches connection of an aural signal in the corded telephone set to the cordless telephone set using the voice switching unit to transmit or receive voice using the cordless telephone set.

Telephone system

Growing community of inventors

Misato, Japan

Kazuhiko Shimizu