Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2007-07-17
2007-07-17
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S232000
Reexamination Certificate
active
10807192
ABSTRACT:
An adaptive equalizer capable of reducing an amount of calculation necessary for signal processing to such a degree that the accuracy of adaptive processing does not deteriorate and thereby reducing power consumption. When the transmission path is in a situation in which the influence of fading is small judging from the previous reception performance, a transmission path situation decision section (106) generates a control signal which causes a correlation window size control section (105) to change a correlation window size, generates a control signal preventing a matrix operator (103) from performing a calculation operation and generates a control signal which causes a selector (104) to select the output of a first correlator (101). As a result, it is possible to reduce the amount of calculation when the situation of the transmission path is relatively good.
REFERENCES:
patent: 5251237 (1993-10-01), Baier
patent: 5317595 (1994-05-01), Ostman
patent: 6002716 (1999-12-01), Meyer et al.
patent: 6021161 (2000-02-01), Yamaguchi et al.
patent: 6044104 (2000-03-01), Watanabe
patent: 6347391 (2002-02-01), Uesugi et al.
patent: 6434192 (2002-08-01), Aizawa et al.
patent: 6678230 (2004-01-01), Miyashita et al.
patent: 2002/0051487 (2002-05-01), Yamada et al.
patent: 2002/0181549 (2002-12-01), Linnartz et al.
patent: 1351454 (2002-05-01), None
patent: 1404675 (2003-03-01), None
patent: 9614543 (1997-08-01), None
patent: 0496467 (1992-07-01), None
patent: 1-465-378 (2004-06-01), None
patent: 2268377 (1994-01-01), None
patent: 9-294095 (1997-11-01), None
patent: 11313013 (1999-11-01), None
patent: 11508113 (1999-12-01), None
patent: 97/39536 (1997-10-01), None
English Language Abstract of JP 11-508113.
English Language Abstract of JP 9-294095.
English Language Abstract of JP 11-313013.
Hirano et al., “DSP Implementation And Performance Evaluation Of Sparse-Tap Adaptive Fir Filters With Tap-Position Control,” IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Atlanta 1996, vol. 3, No. 21, May 7, 1996, pp. 1295-1298.
English language abstract of DE 19614543.
English language abstract of EP 0496467.
Bocure Tesfaldet
Greenblum & Bernstein P.L.C.
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Adaptive equalizer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adaptive equalizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive equalizer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3801383