Digital signal processing and receiving apparatus and method

Details Digital signal processing and receiving apparatus and method Digital signal processing and receiving apparatus and method

2004-12-29

2010-06-01

Payne, David C (Department: 2611)

Pulse or digital communications

Receivers

C375S322000, C375S324000, C375S340000, C329S300000, C329S303000, C455S130000

Reexamination Certificate

active

07729449

ABSTRACT:
A DSP tuner, which is equipped with an A/D converter and a digital signal processing part, is provided to the receiving parts of an in-vehicle equipment and a portable equipment that constitute an in-vehicle equipment remote control system. The A/D converter quantizes analog input signals received by receiving antennas and converts them into digital values. The digital signal processing part always appears, and removes as a noise a frequency band of which spectrum hardly change within a predetermined time period. Moreover, the digital signal processing part sets a frequency band with a comparatively large spectrum change as an FSK modulation signal corresponding to code contents, and outputs binary data corresponding to the frequency band as a code signal.

REFERENCES:
patent: 4307380 (1981-12-01), Gander
patent: 4763290 (1988-08-01), Cowen
patent: 4870659 (1989-09-01), Oishi et al.
patent: 5081650 (1992-01-01), Hasegawa et al.
patent: 5373533 (1994-12-01), Hayashihara et al.
patent: 5548652 (1996-08-01), Fujiwara et al.
patent: 5974101 (1999-10-01), Nago
patent: 6140954 (2000-10-01), Sugawara et al.
patent: 6370130 (2002-04-01), Zhou et al.
patent: 6836181 (2004-12-01), Yoshida
patent: 7110465 (2006-09-01), Kaku et al.
patent: 2003/0002590 (2003-01-01), Kaku et al.
patent: 86103321 (1986-12-01), None
patent: 61-281365 (1986-12-01), None
patent: 06-291688 (1994-10-01), None
patent: 06-349208 (1994-12-01), None
patent: 08-8744 (1996-01-01), None
patent: 09-89671 (1997-04-01), None
patent: 09-117424 (1997-05-01), None
patent: 10-341184 (1998-12-01), None
patent: 2000-13357 (2000-01-01), None
patent: 2001-216000 (2001-08-01), None
patent: 2002-64389 (2002-02-01), None
patent: WO00/25512 (2000-05-01), None
Herbert Taub “Principles of Communication Systems” Second Edition, pp. 276-277.
English Translation of Chinese Office Action for Application No. 038181762 mailed Nov. 10, 2006.
International Search Official Communication for Appn. No. 03 736 290.2 issued Aug. 9, 2006.

Affiliated with

Also associated with

Rating

Digital signal processing and receiving apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital signal processing and receiving apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital signal processing and receiving apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4197531