Nested loop video disc servo system

Details Nested loop video disc servo system Nested loop video disc servo system

H - Electricity

04

N

352/33.12, 352/1

H04N 5/76 (2006.01) G11B 21/03 (2006.01) H04N 9/79 (2006.01) H04N 9/793 (2006.01) H04N 9/85 (2006.01)

Patent

CA 1154156

ABSTRACT OF THE DISCLOSURE An active filter separates the function of a principal feedback loop which provides velocity error correction from that of a nested feedback loop which provides video signal frequency correction. A further feedback loop responsive to the active filter output signal normally open under steady-state conditions, is closed under transient conditions for supplying a limited gain reducing signal to the input of the active filter whereby transient disturbance of the primary and nested loops is minimized with no loss of loop gain under steady-state conditions. The third loop includes a dead zone amplifier for distinguishing between transient and steady-state conditions and a limiter for limiting the gain reducing signal to level below that which otherwise would tend to drive the active filter to a non-linear slow recovery condition.

358745

Affiliated with

Also associated with

Rating

Nested loop video disc servo 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 Nested loop video disc servo system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nested loop video disc servo system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-754763