Position memory for laser reproduction unit

Details Position memory for laser reproduction unit Position memory for laser reproduction unit

1984-05-10

1985-07-02

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specified detail of transducer assembly support structure

369 79, 369215, 369233, 369292, G11B 1700

Patent

active

045272654

ABSTRACT:
A record player apparatus with a laser reproduction unit and a movable support for moving the reproduction unit across the surface of a record as the record is rotated during a playing operation to position the reproduction unit to reproduce recordings in tracks on the records has a non-volatile memory unit for storing identification information read by the reproduction unit from tracks on the records which retains the information when the power supply is cut off and the reproducing is interrupted while the record is being rotated during a playing operation and has a mechanism for locating the reproduction unit in the position occupied when the power supply was cut off to resume the reproducing at the point of interruption when the power supply is reconnected.

REFERENCES:
patent: 3281152 (1966-10-01), Narutani
patent: 4260162 (1981-04-01), Morii et al.
patent: 4403316 (1983-09-01), Veerdonk
patent: 4455641 (1984-06-01), Sliski
patent: 4460991 (1984-07-01), Omoto

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