Synchronization holding circuit in scanning of laser disk player

Details Synchronization holding circuit in scanning of laser disk player Synchronization holding circuit in scanning of laser disk player

1990-12-31

1992-10-27

Shaw, Dale M.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358326, 358314, 358327, H04N 595

Patent

active

051594641

ABSTRACT:
A synchronization holding circuit in scanning of a laser disk comprising a signal detection circuit, a signal processing circuit, an error detection circuit, a speed control circuit, a locking detection circuit, a microcomputer, and a switching circuit, wherein a user can get information on a location of a currently scanned laser disk by displaying a video signal on a monitor only when the horizontal synchronous signals and phase horizontal synchronous signals of the video signal are synchronized simultaneously and also an eyestrain phenomenon can be removed.

REFERENCES:
patent: 4315276 (1982-02-01), Harada et al.
patent: 4959733 (1990-09-01), Miura et al.

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