Radio communication device

Pulse or digital communications – Receivers – Automatic frequency control

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C341S108000, C341S158000, C341S143000, C341S155000, C341S166000, C375S340000, C375S316000, C375S327000, C375S347000

Reexamination Certificate

active

08050365

ABSTRACT:
A radio communication device performs baseband processing by subjecting a received signal to an AD conversion at a predetermined sampling frequency and converting a digital signal resulting from the AD conversion into a baseband signal by frequency conversion. The device includes a frequency converting unit configured to convert the resulting digital signal into a complex baseband signal. The device further includes a waveform shaping unit configured to subject the baseband signal to waveform shaping, and a down-sampling unit configured to subject the baseband signal to sample discrete reduction.

REFERENCES:
patent: 4888557 (1989-12-01), Puckette et al.
patent: 5504455 (1996-04-01), Inkol
patent: 5640698 (1997-06-01), Shen et al.
patent: 6337885 (2002-01-01), Hellberg
patent: 6600438 (2003-07-01), Hilton
patent: 6700519 (2004-03-01), Yamamoto
patent: 7477706 (2009-01-01), Troemel
patent: 2002/0037060 (2002-03-01), Kishi
patent: 2002/0130798 (2002-09-01), Tonami
patent: 1513226 (2004-07-01), None
patent: 09-74364 (1997-03-01), None
patent: 2002-503912 (2002-02-01), None
patent: 2002-76975 (2002-03-01), None
patent: 2004-96177 (2004-03-01), None
patent: 2006-246059 (2006-09-01), None
Jan-Erik Eklund et al., “A Multiple Sampling, Single A/D Conversion Technique for I/Q Demodulation in CMOS”, IEEE Journal of Solid-State Circuits, vol. 31, No. 12, Dec. 1996.
Office Action dated Sep. 2, 2010 in corresponding Chinese Patent Application No. 200710301617.7 (12 pages).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Radio communication device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio communication device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio communication device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4304474

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.