Title:
TIMING ERROR CORRECTING SYSTEM
Document Type and Number:
Japanese Patent JPS5457825
Kind Code:
A
Abstract:
Means are provided for detecting departures of the relative velocity between a signal pickup and the information track of a video disc from a predetermined value. Signals recovered when relative motion is established between the track of the disc and the signal pickup are subjected to a delay in a charge transfer delay line. The line delay is made to vary in response to the output of the detecting means so as to compensate for signal time base errors engendered through departures of said relative velocity from the predetermined value. Non-linearities of the time delay of the delay line with respect to the output of the detecting means, which are due to large changes in the output frequency of a voltage controlled oscillator utilized for controlling the operation of the delay line, are compensated for by means of a linearizing feedback loop for the oscillator.
Inventors:
DARUTON HARORUDO PURICHIYAADO
Application Number:
JP11737478A
Publication Date:
May 10, 1979
Filing Date:
September 22, 1978
Export Citation:
Assignee:
RCA CORP
International Classes:
G11B20/02; H04N9/893; H04N5/953; (IPC1-7): G11B5/027; H04N5/795; H04N5/80