Time-axis correcting circuit for recorded data reproducing devic

Details Time-axis correcting circuit for recorded data reproducing devic Time-axis correcting circuit for recorded data reproducing devic

1983-12-12

1986-08-19

Faber, Alan

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

360 361, 358337, 358325, 358323, H04N 595, G11B 2022

Patent

active

046073604

ABSTRACT:
A time-axis correcting circuit for a recorded data reproducing device, such as a video tape player or video disc player, in which dominant and other time-axis errors are substantially completely suppressed. The reproduced signal is applied to the input of a variable delay circuit. A timing data component, such as the color burst signal, is separated from the delayed reproduced signal and applied to a flywheel oscillator, the open-loop oscillation frequency of which is set at least approximately to the frequency of a dominant time-axis error component to be suppressed. The output of the flywheel oscillator is applied through a voltage-controlled oscillator to the control input of the variable delay circuit.

REFERENCES:
patent: 4150395 (1979-04-01), Pritchard
patent: 4297728 (1981-10-01), Lowe
patent: 4313129 (1982-01-01), Fukui

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