Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1981-07-13
1983-02-22
Konick, Bernard
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369126, 369275, 369 44, 369 47, 360 77, 360 102, 358342, G11B 2110
Patent
active
RE0311600
ABSTRACT:
A tracking control apparatus is employed in apparatus for reproducing video signals from a rotary recording medium. A reproducing transducer is used for reproducing recorded signals in which a main information signal has been recorded in a plurality of adjacent tracks and at least one reference signal has been recorded at an intermediate position between the longitudinal center lines of the adjacent tracks. The tracking control apparatus positions the reproducing transducer to follow a correct tracking along the main information signal track. The reference signal is separated from the signal reproduced by the reproducing transducer. A control signal is produced in response to the separated reference signal for application to the tracking control means. An automatic gain control operation fixes the level of the separated reference signal at a stage prior to the stage where the control signal is produced.
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Bernat Louis
Konick Bernard
McElheny Jr. Donald
Victor Company of Japan Ltd.
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