Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Reexamination Certificate
2006-05-02
2006-05-02
Hsia, Sherrie (Department: 2614)
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
C348S614000
Reexamination Certificate
active
07038731
ABSTRACT:
An equalization method and device for equalizing the received vestigial sideband (VSB) signal, utilizes segment-sync symbols, Sato directions, erasure slicers, and variable step-sizes. In addition to stop-and-go (SAG) mode, the directions of Sato errors can also be used for speed up the convergence of tap weights of the equalizer. Erasure slicers can mitigate the effect of decision errors as they are passed through the feedback filter. In time-variant environments, variable step-sizes help the equalizer tracking the variations of the channels; in time-invariant environments, variable step-sizes help ease the fluctuations of the steady-state equalizer tap weights, and therefore yield smaller mean-squared-error and better symbol error rate (SER).
REFERENCES:
patent: 5841484 (1998-11-01), Hulyalkar et al.
patent: 6011813 (2000-01-01), Ghosh
patent: 6418164 (2002-07-01), Endres et al.
patent: 1258166 (2000-06-01), None
Hsia Sherrie
Silicon Integrated Systems Corp.
LandOfFree
Adaptive equalizer method and apparatus for American ATSC... 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 method and apparatus for American ATSC..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive equalizer method and apparatus for American ATSC... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3578899