Radio telephone system control apparatus and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4802200
SERIAL NO

06900590

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method and apparatus for controlling a radio telephone system of the type wherein a connection between a wired telephone channel and a plurality of radio telephone handsets is controlled by a single base station connected to the wired telephone channel, a ring signal through the wired telephone channel is detected, a paging signal is sent to the radio telephone handsets from the base station when the ring signal is detected and a paging response signal is sent to the base station from the radio telephone handset in response to the paging signal. Further a channel designating signal is sent to the radio telephone handset in accordance with the paging response signal, a radio channel of the base station is switched to a radio channel corresponding to the channel designating signal, the radio channel of the radio telephone handset is switched to a radio channel corresponding to the channel designating signal, and a speech channel is established between a radio telephone handset responding to the paging signal and the wired telephone channel.

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First Claim

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Family

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Patent Owner(s)

  • NEC CORPORATION;NIPPON TELEGRAPH AND TELEPHONE CORPORATION;KABUSHIKI KAISHA TOSHIBA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Koichi Hino, JP 310 4641
Murata, Yoshitoshi Yokosuka, JP 10 437
Yoshizawa, Kazuhiro Kashiwa, JP 20 447
Yotsutani, Akio Tokyo, JP 17 592

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