H - Electricity – 04 – M
Patent
H - Electricity
04
M
379/11
H04M 1/72 (2006.01) H04M 1/725 (2006.01)
Patent
CA 1292587
ABSTRACT OF THE DISCLOSURE A cordless telephone system comprises a radio telephone set and a connection unit connected to a wire telephone circuit and also connected to the radio telephone set through a radio communication circuit, for interconnection control between the wire telephone circuit and the radio telephone set. When the wire telephone circuit is put in its unusable state or a signal on the radio communication circuit is put in its unreceivable state, the connection unit transmits a disconnecting signal to the wireless telephone set to forcibly cut off the radio communication circuit.
575416
Fuse Shoji
Hara Toshihiro
Koji Ono
Ohta Yuji
Shirakata Michimasa
Corporation Nec
Kabushiki Kaisha Toshiba
Marks & Clerk
Nippon Telegraph And Telephone Corporation
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