Wireless telephone extension unit with combination filter/oscill

Details Wireless telephone extension unit with combination filter/oscill Wireless telephone extension unit with combination filter/oscill

1982-12-16

1984-09-11

Rubinson, G. Z.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

179 2E, 455 84, H04Q 704

Patent

active

044711689

ABSTRACT:
A wireless extension telephone system including a base unit connected to a telephone line and a remote extension unit. Included in both the base and extension units are a radio receiver and a radio transmitter. Also included in the remote unit is a bimodal tuned circuit operable as both a filter and as an oscillator.

REFERENCES:
patent: 4039760 (1977-08-01), Gregory et al.
patent: 4213009 (1980-07-01), Suzuki

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