Remote telephone system

Patent

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Details

179 2E, H04Q 704

Patent

active

042911974

ABSTRACT:
This invention relates to a cordless telephone system which includes a radiophone having a radio transmitter and a radio receiver, and a radio station wired to a communication line having a ratio transmitter and a radio receiver.
The radiophone is provided with a means which develops a pulse signal. The means may be a dial thereof, where the pulse signals is to be a dialing signal.
The pulse signal is emitted to the radiophone on a carrier wave.
The radiophone is provided with a means which detects and responds the pulse signal, and also a means which enables or disables a dialing signal demodulator therein as a function of the response of the means.

REFERENCES:
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patent: 3351714 (1967-11-01), Kunzelman et al.
patent: 3476882 (1969-11-01), Vogelman et al.
patent: 3551815 (1970-12-01), Berman
patent: 3581019 (1971-05-01), Ryan
patent: 3590166 (1971-06-01), Anshutz
patent: 3644681 (1972-02-01), Rice
patent: 3754187 (1973-08-01), Deming
patent: 3912875 (1975-10-01), Katz
patent: 4039760 (1977-08-01), Gregory et al.
patent: 4119800 (1978-10-01), Girardi

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