Method and system for processing in a non-line locked system

Details Method and system for processing in a non-line locked system Method and system for processing in a non-line locked system

2007-11-20

2007-11-20

Kostak, Victor R. (Department: 2622)

Television

Synchronization

Locking of video or audio to reference timebase

C348S549000, C348S663000, C348S194000

Reexamination Certificate

active

10875439

ABSTRACT:
Certain embodiments of the invention disclose a method and system for processing in a non-line locked system. The phase relationship between the sub-carrier signal on consecutive video lines in a video comb filter is determined by synchronizing the two video lines. The synchronization is achieved by aligning the color bursts signals in each of the two video lines. The phase error between the two video lines is determined through the use of a correlation operation. The phase error between consecutive video lines is used to automatically adjust the delay lines used by the video comb filter. The line delay adjustment is provided by changing the values of a variable integer delay and a fractional integer delay. Line delay adjustments reduce the artifacts that occur in the separation of luma and chroma components of a composite video signal.

REFERENCES:
patent: 3560634 (1971-02-01), Dillenburger et al.
patent: 3688022 (1972-08-01), Marshall
patent: 3890558 (1975-06-01), Guisinger et al.
patent: 3921202 (1975-11-01), Dann et al.
patent: 4053926 (1977-10-01), Lemoine et al.
patent: 4251831 (1981-02-01), Kamath
patent: 4367489 (1983-01-01), Holmes
patent: 4393397 (1983-07-01), Holmes
patent: 4490748 (1984-12-01), Kamath
patent: 4584599 (1986-04-01), Mobley, II
patent: 4651232 (1987-03-01), Lemoine et al.
patent: 4736243 (1988-04-01), Takanashi et al.
patent: 4985757 (1991-01-01), Yasuki et al.
patent: 5294979 (1994-03-01), Patel et al.
patent: 6333764 (2001-12-01), Robinson et al.
patent: 6411338 (2002-06-01), Neill
patent: 2006/0077302 (2006-04-01), Nieuwenhuizen

Affiliated with

Also associated with

Rating

Method and system for processing in a non-line locked system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for processing in a non-line locked system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for processing in a non-line locked system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3817755