Automatic communication standby device in cordless telephone

Details Automatic communication standby device in cordless telephone Automatic communication standby device in cordless telephone

1982-06-17

1985-04-16

Bookbinder, Marc E.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

179 2BC, 455 73, 455 89, 455127, H04M 102, H04B 140

Patent

active

045117616

ABSTRACT:
A switching element is inserted in a power supply line to a transmission circuit in the portable unit of a cordless telephone. The charge potential which is supplied from the base unit to the portable unit actuates the switching element to break the power supply line when the portable unit is replaced on the cradle of the base unit.

REFERENCES:
patent: 3919491 (1973-09-01), Luce

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