Cordless telephone

Details Cordless telephone Cordless telephone

1987-07-08

1988-08-30

Lev, Robert

Telephonic communications

Audio message storage, retrieval, or synthesis

379 63, H04Q 704

Patent

active

047682191

ABSTRACT:
A multichannel access cordless telephone has a base unit and a handset unit which, in a standby mode, each independently scan a plurality of communication channels to detect interference thereon and to record those channels on which interference is detected. Thereafter, in a talk mode of the cordless telephone, one of the base unit and the handset unit scans the communication channels other than the detected ones previously recorded to detect a vacant one of the communication channels and to establish communication between the handset unit and the base unit thereover.

REFERENCES:
patent: 4628152 (1986-12-01), Akerberg
patent: 4646345 (1987-02-01), Zduner et al.
patent: 4654879 (1987-03-01), Goldman et al.
patent: 4656653 (1987-04-01), Oda et al.
patent: 4672657 (1987-06-01), Dershowitz
patent: 4694485 (1987-09-01), Iwase
patent: 4698839 (1987-10-01), De Vaney et al.

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