H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/707 (2006.01) H04B 7/01 (2006.01) H04L 27/233 (2006.01)
Patent
CA 2141654
A data demodulator circuit for spread spectrum communi- cation, presenting improved demodulation characteristics by allowing the elimination of the influence of a carrier offset remaining after down converting, and the removal of the interference caused by pilot signals with different timing. In-phase axis received signal and quadrature axis received signal are provided to data demodulator circuits adapted to operate with their respective reception timing of pilot signal. A phase difference information extracting means extracts phase difference information from the input signals, and delay means delays the received signals so as to ensure that extracted phase difference information is equivalent to the amount of average phase revolution. A frequency and phase compensation means eliminates the influence of the carrier offset by use of thus extracted phase difference information. A data demodulation means with canceler removes an interference IDF of pilot signals with different timing originating from the outputs of an interference amount calcu- lating means.
Gowling Lafleur Henderson Llp
Mitsubishi Denki Kabushiki Kaisha
LandOfFree
Data demodulation circuit and method for spread spectrum... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data demodulation circuit and method for spread spectrum..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data demodulation circuit and method for spread spectrum... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1469257