Receiver device, communications device, wireless LAN device,...

Details Receiver device, communications device, wireless LAN device,... Receiver device, communications device, wireless LAN device,...

2004-08-16

2008-10-14

Ahn, Sam K (Department: 2611)

Pulse or digital communications

Receivers

Reexamination Certificate

active

07436905

ABSTRACT:
A receiver device in accordance with the present invention (for example, wireless LAN device) includes: a radio frequency signal processor section converting an incoming radio frequency signal to a lower frequency; an RSSI circuit (reception strength sensor section) sensing the signal strength of the radio frequency signal; an intermediate frequency signal processor section converting a signal from the radio frequency signal processor section to an even lower frequency; a digital demodulator section (demodulator section) demodulating a signal from the intermediate frequency signal processor section; and a power control circuit controlling power supply to circuits in the intermediate frequency signal processor section which makes up part of the analog section (AGC circuit, IF mixer circuit, LPF circuit, and amplifier circuit) according to a result of sensing by the RSSI circuit. The structure provides a power saving receiver device.

REFERENCES:
patent: 6463050 (2002-10-01), Nagashima
patent: 2004/0235445 (2004-11-01), Gomez
patent: 2006/0031457 (2006-02-01), Motoyama
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patent: 8-307428 (1996-11-01), None
patent: 2000-236286 (2000-08-01), None
patent: 2001-218129 (2001-08-01), None
patent: 2002-33673 (2002-01-01), None
patent: 2002-135151 (2002-05-01), None
Cai et al. AGC and IF amplifier circuits design, 2003 IEEE Topical Conference on Wirless communication Technology, p. 42-46.

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