Horizontal sync to subcarrier phase measurement method and appar

Details Horizontal sync to subcarrier phase measurement method and appar Horizontal sync to subcarrier phase measurement method and appar

1982-03-31

1984-09-04

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 962

Patent

active

044700644

ABSTRACT:
The 50% point of the leading edge of sync is used to acquire the value of a color burst locked CW carrier, and a quadrature color burst locked CW carrier. The acquired value of each of the two carriers are split into two values representing the value on alternating horizontal lines. This requires the generation of a one-half horizontal rate signal (H/2) which can have an arbitrary phase relationship. The H/2 phase is associated with each of the four acquired CW carrier values and that information is used by the computing device. The H/2 signal is also used to gate a 30 Hz vertical frame pulse to enerate a 15 Hz V1 color frame pulse. The computing device receives the color frame pulse and records the time the pulse occurs. This information represents the minimum and sufficient set of data to obtain a complete measure of sync to subcarrier phase (SC/H) and color frame comparison. By multiplexing the acquisition electronics between two video sources, SC/H and color frame comparisons can be made by the computing device.

REFERENCES:
patent: 3958269 (1976-05-01), Davis
patent: 4024571 (1977-05-01), Dischert
patent: 4180829 (1979-12-01), Pires
patent: 4388637 (1983-06-01), Blair

Affiliated with

Also associated with

Rating

Horizontal sync to subcarrier phase measurement method and appar does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Horizontal sync to subcarrier phase measurement method and appar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Horizontal sync to subcarrier phase measurement method and appar will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1895079