Video disc apparatus for clearing foreign matter from the...

Details Video disc apparatus for clearing foreign matter from the... Video disc apparatus for clearing foreign matter from the...

G - Physics

11

B

352/24.3

G11B 3/58 (2006.01) G11B 3/12 (2006.01) G11B 9/07 (2006.01) G11B 21/02 (2006.01) G11B 23/50 (2006.01) G11B 27/36 (2006.01)

Patent

CA 1156360

RCA 74,595 Abstract Accumulated foreign material on the signal pickup stylus of a video disc player tends to degrade the quality of the recovered information signal. The recovered information signal is detected and the nominal amplitude of the recovered signal is compared against a reference amplitude. The occurrence of a decrease in recovered signal amplitude below the level of the reference causes a comparator to generate a control or trigger pulse. The control pulse activates a pulse generator to produce a predetermined pulse sequence which is applied to a stylus deflection transducer to move the stylus fore and aft radially across the disc and thereby dislodge the foreign material from the pickup stylus.

371577

Affiliated with

Also associated with

Rating

Video disc apparatus for clearing foreign matter from the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video disc apparatus for clearing foreign matter from the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video disc apparatus for clearing foreign matter from the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-865476