DC-free codes

Details DC-free codes DC-free codes

2005-07-12

2005-07-12

Young, Brian (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from minimum d.c. level codes

Reexamination Certificate

active

06917313

ABSTRACT:
An encoder encoding a communication signal includes a first precoder to precode the communication signal. A signal buffer buffers a first signal associated with the communication signal. A DC tracking block generates a flip signal as function of a statistical measure of the precoded communication signal. The flip signal has a flip state and a nonflip state. A flip unit, responsive to the flip signal, flips an output of the signal buffer such that an average DC value of the precoded communication signal approaches zero.

REFERENCES:
patent: 4027335 (1977-05-01), Miller
patent: 4775985 (1988-10-01), Busby
patent: 5198813 (1993-03-01), Isozaki
patent: 5341134 (1994-08-01), Benjauthrit
patent: 5506581 (1996-04-01), Ino et al.
patent: 5699061 (1997-12-01), Shimpuku
patent: 5854596 (1998-12-01), Schouhamer Immink
patent: 5929794 (1999-07-01), Hayakawa et al.
patent: 6175317 (2001-01-01), Ordentlich et al.
patent: 6265994 (2001-07-01), Kahlman

Affiliated with

Also associated with

Rating

DC-free codes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with DC-free codes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC-free codes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3389247