Digital demodulator with improved hardware and power efficiency

Details Digital demodulator with improved hardware and power efficiency Digital demodulator with improved hardware and power efficiency

2011-03-08

2011-03-08

Ghayour, Mohammad H (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S229000, C375S316000, C375S324000, C329S372000

Reexamination Certificate

active

07903772

ABSTRACT:
A demodulator for use in a receiver converts a digital baseband signal into inbound digital symbols with reduced hardware complexity and reduced power consumption. The demodulator includes a lowpass filter operably coupled to filter the digital baseband signal to produce a filtered digital baseband signal, and an equalizer operating at a first sampling rate to equalize the frequency response of the digital baseband signal such that the receiver overall in-band frequency response approximates the frequency response of a square root raised cosine filter to produce an adjusted digital baseband signal. An interpolator receives the adjusted digital baseband signal at the first sampling rate and interpolates the adjusted digital baseband signal to produce an interpolated digital baseband signal at a second sampling rate, from which the inbound digital symbols can be generated.

REFERENCES:
patent: 4425665 (1984-01-01), Stauffer
patent: 5550869 (1996-08-01), Gurantz et al.
patent: 5619542 (1997-04-01), Gurney et al.
patent: 5721756 (1998-02-01), Liebetreu et al.
patent: 5995563 (1999-11-01), Ben-Efraim et al.
patent: 6005901 (1999-12-01), Linz
patent: 6263354 (2001-07-01), Gandhi
patent: 6310566 (2001-10-01), McNeely
patent: 6434192 (2002-08-01), Aizawa et al.
patent: 6912259 (2005-06-01), Tsumura
patent: 2002/0181614 (2002-12-01), Mostafa et al.
patent: 2003/0204542 (2003-10-01), Mueller
patent: 2004/0160346 (2004-08-01), Husted et al.

Affiliated with

Also associated with

Rating

Digital demodulator with improved hardware and power efficiency 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 demodulator with improved hardware and power efficiency, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital demodulator with improved hardware and power efficiency will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2752307