Ultra wide band device and detect-and-avoid method thereof

Details Ultra wide band device and detect-and-avoid method thereof Ultra wide band device and detect-and-avoid method thereof

2007-01-10

2010-10-26

Pan, Yuwen (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S514000, C455S063100, C455S067110, C455S191200

Reexamination Certificate

active

07822430

ABSTRACT:
An ultra wide band (UWB) device and a detect and avoid (DAA) method thereof are provided. The UWB device includes a detect and avoid (DAA) module block which detects a strength of radio signals received in a plurality of channels and determines communicability of the channels; a multitone generation block which generates a plurality of frequencies corresponding to the plurality of the channels and outputs one of the plurality of frequencies; and a controller which controls the multitone generation block to generate frequencies of an available channel which is determined to be communicable by the DAA module block. The method includes detecting a strength of radio signals received in a plurality of channels; determining communicability of the channels according to the detected strength of the radio signals; generating frequencies corresponding to a channel which is determined to be communicable; and transmitting or receiving a signal using the generated frequencies.

REFERENCES:
patent: 7313086 (2007-12-01), Aizawa
patent: 2004/0048574 (2004-03-01), Walker et al.
patent: 2005/0159109 (2005-07-01), Kivekas et al.

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