Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2007-07-27
2010-06-22
Phu, Phuong (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S343000, C375S326000, C375S362000, C375S365000, C370S208000, C370S512000, C370S514000, C370S515000, C370S509000
Reexamination Certificate
active
07742537
ABSTRACT:
A time domain symbol timing synchronization circuit is disclosed, which comprises: an autocorrelation function calculator for calculating cyclic prefix autocorrelation functions and an offset time estimator for searching peak positions of cyclic prefix autocorrelation functions to indicate symbol boundary of received communication symbols. The offset time estimator compares a current peak position and a previous peak position. If (a) the difference of the positions is larger than a threshold and (b) the current peak is smaller than a reference average peak, the current peak is determined as false; the offset time estimator weeds out and replaces the current peak position by the previous peak position; and the current peak is not introduced in the reference average peak calculation.
REFERENCES:
patent: 6922388 (2005-07-01), Laroia et al.
patent: 7424067 (2008-09-01), Vanderperren et al.
patent: 7643582 (2010-01-01), Chow et al.
patent: 2007/0140106 (2007-06-01), Tsai et al.
patent: 2008/0043858 (2008-02-01), Lim et al.
Hsu Hsin-Chin
Li Shu-Mei
Lin Yi-Sheng
Ma Chingwo
Wang Chih-Chia
Alpha Imaging Technology Corp.
Jianq Chyun IP Office
Phu Phuong
LandOfFree
Time domain symbol timing synchronization circuit 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 Time domain symbol timing synchronization circuit and method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time domain symbol timing synchronization circuit and method... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4233155