Time base correction of recorded television signal

Details Time base correction of recorded television signal Time base correction of recorded television signal

H - Electricity

04

N

350/68, 352/18.3

H04N 9/89 (2006.01) H04N 9/896 (2006.01)

Patent

CA 1275497

ABSTRACT OF THE DISCLOSURE In a time base correction system, a composite color television analog signal derived from a prere- corded tape is converted by an analog-to-digital (A/D) converter to a digital signal having horizontal sync and color burst signal components. The digitized sync and burst signals are processed on a line-by-line basis to provide an error signal between input video and a sampling clock in the form of a binary control word. The error signal is applied to a digital frequency synthesizer which generates a clock at the subcarrier frequency to achieve precise adjustment of frequency and phase of the A/D sampling clock with respect to the video signal. An analog phase lock loop operating at four times the subcarrier frequency feeds back a 4x subcarrier sampling clock to the analog-to-digital converter with adjustable frequency and phase.

518950

Affiliated with

Also associated with

Rating

Time base correction of recorded television signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Time base correction of recorded television signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time base correction of recorded television signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1215494