Grooved label for video disc

Details Grooved label for video disc Grooved label for video disc

G - Physics

11

B

352/32.4

G11B 7/00 (2006.01) G06K 19/06 (2006.01) G11B 5/82 (2006.01) G11B 19/12 (2006.01) G11B 23/36 (2006.01) G11B 23/40 (2006.01)

Patent

CA 1161953

RCA 74,392 ABSTRACT A video disc record suitable for use with a video disc player apparatus is provided with a label for identifying the program material stored on the surface of the record. The label is formed in a machine readable format which comprises grooves in the surface of the record. In one format, whorls of a spiral groove on the surface of the record are spaced alternately with ungrooved areas on the surface. A readout apparatus comprises a light beam which is arranged to scan the grooved label and a detector which is arranged to sense the light beam reflected from the disc record surface. Light striking an ungrooved section is reflected in a substantially specular direction while light striking a grooved section is substantially scattered out of the specular direction. The detector is arranged to collect the light reflected into the specular direction.

374819

Affiliated with

Also associated with

Rating

Grooved label for video disc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Grooved label for video disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grooved label for video disc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-460802