Apparatus for playing disks having different types of video sign

Details Apparatus for playing disks having different types of video sign Apparatus for playing disks having different types of video sign

1991-07-11

1992-11-24

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358337, 360 361, 360 362, H04N 576

Patent

active

051668068

ABSTRACT:
A video disk playback apparatus for playing back a disk shaped record medium on which FM modulated video signals are recorded in spiral shaped tracks or concentric circle shaped tracks includes a pickup apparatus for simultaneously reading at least two tracks adjacently disposed, a first equalizer and a second equalizer to which a first playback signal and a second playback signal are supplied in accordance with the two tracks which are read by the pickup, respectively, and a circuit for controlling at least one characteristic of the first equalizer and the second equalizer, a plurality of the clock signal generation circuits selecting the clock signal generation circuits in accordance with the type of the disk shaped record medium.

REFERENCES:
patent: 4908722 (1990-03-01), Sonobu
patent: 4928287 (1990-05-01), Tanaka
patent: 5068753 (1991-11-01), Kanegae

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