Nec Corporation

Nippon Telegraph and Telephone Corporation

Kabushiki Kaisha Toshiba

Oki Electric Industry Co., Ltd.

Kazuyuki Tate

Koji Ono

Ryoji Kawasaki

Syoji Huse

Noboru Saegusa

Toshihiro Hara

Masataka Goto

Akio Yotsutani

Tetsuya Kato

Yukihiro Shimura

Yoichi Ogawa

A controller of a base station supervises radio communication between the base station and a plurality of personal stations of which a respective one has preset functions of which a description data is stored in a registering section of the base station so that, when an arbitrary personal station is operated into an off-hook state in response to a call it has received from a call sending station, the controller reads the description data of the functions of the personal station in the off-hook state and sends the read data to the call sending station, where it is processed to display a description of the functions before sending back a message of a complete display to the base station, where the controller responds thereto for connecting the personal station in the off-hook state for a talk with the call sending station.

Digital cordless telephone system

Interconnection control method in cordless telephone system

A cordless telephone system includes a connector connected to a subscriber telephone line and at least one radio telephone set through a radio channel to establish or hold a communication channel between the ratio telephone set and a subscriber. The connector includes a control unit incorporating a timer. The control unit sets the system in a self hold state in which the radio channel is kept connected or a complete hold state in which the radio channel is disconnected on the basis of a hold signal from the radio telephone set, the presence/absence of a radio reception signal within a predetermined period of time preset in the timer, and the type of reception signal.

Cordless telephone system

A radio telephone system includes a base station connected to a telephone exchanger and a plurality of mobile stations connected to the base station through a radio channel including a control channel and communication channels. The base station includes a transmitter/receiver, a receiver, and a controller. In a stand-by mode, the controller sets a channel of the transmitter/receiver to the control channel to receive a calling signal from each mobile station and sets a channel of the receiver to a given communication channel to monitor vacancy of the communication channels.

Radio telephone system

Growing community of inventors

Nagoya, Japan

Kazuyuki Tate