Method and apparatus for frequency hopping in a spread...

Details Method and apparatus for frequency hopping in a spread... Method and apparatus for frequency hopping in a spread...

2006-05-09

2006-05-09

Tran, Khai (Department: 2637)

Pulse or digital communications

Spread spectrum

Frequency hopping

C375S132000, C375S344000, C370S437000

Reexamination Certificate

active

07042923

ABSTRACT:
A communications system includes a first and second communication unit coupled together via a radio communications link. In one embodiment, the communications system takes the form of a frequency hopped, spread spectrum digital cordless telephone, where the first unit is a base unit and the second unit is the remote unit. The first and second communication units are respectively set to transmit and receive communication over a first radio frequency during a first time frame, select a second radio frequency during the first time frame, and set to respectively receive and transmit communication over the second radio frequency during a second time frame.

REFERENCES:
patent: 4654859 (1987-03-01), Kung et al.
patent: 5408506 (1995-04-01), Mincher et al.
patent: 5590410 (1996-12-01), Deutsch et al.
patent: 5966665 (1999-10-01), Taki

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