Channel equalizer of single carrier receiver and equalizing...

Details Channel equalizer of single carrier receiver and equalizing... Channel equalizer of single carrier receiver and equalizing...

2007-05-15

2007-05-15

Vo, Don N. (Department: 2611)

Pulse or digital communications

Equalizers

Automatic

C375S265000, C375S350000

Reexamination Certificate

active

10625614

ABSTRACT:
A channel equalizer of a single carrier receiver of improved equalization efficiency includes a feed-forward filter that removes a pre-ghost from respective symbols of a broadcasting signal, a feedback filter that removes a post-ghost from the respective symbols of the broadcasting signal, an adder that adds the pre-ghost removed symbols with the post-ghost removed symbols, a level decision unit that determines a level of the symbols added at the adder with reference to predetermined level data and then feeds back the determined level to the feedback filter, a trellis decoder that performs trellis decoding with respect to the symbols added at the adder and has a whole decoding depth as N (N=natural number), and a whole length of a trace back delay as N×K (K=natural number), an error calculator that calculates an error value between the symbols added at the adder and the level determined at the level decision unit, and a trellis control unit that controls the trellis decoder so that a plurality of decoded symbols output from the trellis decoder can be input to the feedback filter in correspondence to the error obtained at the error calculator.

REFERENCES:
patent: 5872817 (1999-02-01), Wei
patent: 6222592 (2001-04-01), Patel
patent: 6313882 (2001-11-01), Limberg et al.
patent: 6816548 (2004-11-01), Shiue et al.
patent: 2003/0001974 (2003-01-01), DSouza
Chinese Office Action dated Jul. 22, 2005 for corresponding Chinese Patent Application No. 031566553.

Affiliated with

Also associated with

Rating

Channel equalizer of single carrier receiver and equalizing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Channel equalizer of single carrier receiver and equalizing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Channel equalizer of single carrier receiver and equalizing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3797985