G - Physics – 11 – B
Patent
G - Physics
11
B
352/32.2, 352/18
G11B 7/00 (2006.01) H04N 5/76 (2006.01) H04N 9/87 (2006.01) H04N 9/873 (2006.01)
Patent
CA 1152642
1 PHN 9248 ABSTRACT: An apparatus for reading a disc-shaped record carrier on which per track circumference one picture of a colour television signal is recorded. The signal being read is converted to a standard PAL colour television signal. The apparatus comprising a command device which by applying command signals to control means can produce a jumpwise radial change in the scanning position on the record carrier, so as to enable the scanning sequence of the recorded pictures to be changed. In order to main- tain a standard PAL colour television signal in the case of a changed scanning sequence, the apparatus comprises a correction device for the chrominance signal. This correction device is controlled by the command device and comprises a mixing circuit for mixing the chrominance signal with a reference signal of twice the chrominance subcarrier frequency during time intervals prescribed by the command device, and phase correction means for intro- ducing a phase shift of 0°, 90°, 180° or 270° in thechrominance signal in accordance with a pattern defined by the command device.
337007
Bierhoff Martinus P.m.
Hoogendijk Adrianus H.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
LandOfFree
Apparatus for reading a disc-shaped record carrier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for reading a disc-shaped record carrier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for reading a disc-shaped record carrier will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-707513