DVD EFM modulation architecture using two passes to reduce...

Details DVD EFM modulation architecture using two passes to reduce... DVD EFM modulation architecture using two passes to reduce...

2005-08-10

2010-11-30

Nguyen, Khai M (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from minimum d.c. level codes

C341S059000, C341S068000

Reexamination Certificate

active

07843366

ABSTRACT:
A method for modulating a video input signal received into a modulation circuit is disclosed. A first step of the method generally comprises (A) during a first modulation pass, generating (i) a primary frame by inserting a plurality of primary synchronization codes into the video input signal, (ii) a secondary frame by inserting a plurality of secondary synchronization codes into the video input signal, (iii) a plurality of first values and a first digital sum value both for the primary frame and (iv) a plurality of second values and a second digital sum value both for the secondary frame. A second step of the method generally comprises (B) during a second modulation pass, generating a video output signal presented from the modulation circuit by modulating the video input signal using one set of (i) the first values and (ii) the second values as determined by the first digital sum value relative to the second digital sum value.

REFERENCES:
patent: 5151699 (1992-09-01), Moriyama
patent: 6023234 (2000-02-01), Fukuoka
patent: 6778104 (2004-08-01), Chen et al.
patent: 6879637 (2005-04-01), Nakagawa et al.
patent: 6950042 (2005-09-01), Nakagawa et al.
patent: 7030788 (2006-04-01), Aida et al.

Affiliated with

Also associated with

Rating

DVD EFM modulation architecture using two passes to reduce... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with DVD EFM modulation architecture using two passes to reduce..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DVD EFM modulation architecture using two passes to reduce... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4240206