Measurement of timebase jitter for component video

Details Measurement of timebase jitter for component video Measurement of timebase jitter for component video

1990-04-12

1991-04-23

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358166, 358167, 358 10, H04N 1700

Patent

active

050104039

ABSTRACT:
A method of measuring timebase jitter for component video compares a test signal from a reference signal generator, such as a bowtie signal or a fixed carrier frequency signal, with the same test signal from a local phase locked signal generator for which timing jitter is to be determined. The test signals are timed to be coincident by adjusting appropriate delay lines and timing controls. For a bowtie signal the width of an indeterminate region for the intersection of the bowtie signal is a measure of the timebase jitter, the value of which is determined using the cursors provided by the bowtie signal. For a fixed carrier frequency signal the respective test signals are equalized in amplitude and timed for coincidence, and then modulated together. The modulated signal is lowpass filtered and processed by a fast Fourier transform to provide a display of the timebase jitter.

REFERENCES:
patent: 4488168 (1984-12-01), Mino
patent: 4729025 (1988-03-01), Yanase
patent: 4829366 (1989-05-01), Penney
patent: 4875089 (1989-10-01), Judge

Affiliated with

Also associated with

Rating

Measurement of timebase jitter for component video does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Measurement of timebase jitter for component video, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of timebase jitter for component video will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1624767