Disc reproducing system for compensating mechanical imperfection

Details Disc reproducing system for compensating mechanical imperfection Disc reproducing system for compensating mechanical imperfection

1981-02-02

1987-12-08

Faber, Alan

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Mechanical modification or sensing of storage medium

369 60, 369140, G11B 304

Patent

active

047122080

ABSTRACT:
Apparatus for reducing the effects of vertical perturbations of a phonograph disc surface resulting from disc and/or playback system mechanical imperfections. Such imperfections are compensated by closed loop and/or open loop means wherein the deviations of the record path are detected and employed to minimize the effects of the mechanical imperfections.

REFERENCES:
patent: 2258596 (1941-10-01), Cortello
patent: 2759049 (1956-08-01), Scott
patent: 2775460 (1956-12-01), Shivack
patent: 2948783 (1960-08-01), Scully
patent: 3120393 (1964-02-01), Pennucci
patent: 3830505 (1974-08-01), Robinow
patent: 3876943 (1975-04-01), Watt

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