System for playing back information recorded on a disk recording

Details System for playing back information recorded on a disk recording System for playing back information recorded on a disk recording

1984-06-13

1988-02-02

McElheny, Jr., Donald

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 32, 369 44, G11B 700, G11B 2710

Patent

active

047232358

ABSTRACT:
A system for playing back information recorded on a recording medium on which a lead-in code and a lead-out code are respectively recorded at the beginning and the end of a program area, comprises a first control means for rapidly moving a pickup device at least across the area of the lead-in code of the recording medium, a second control means for moving back the pickup means when the lead-out code is detected during the movement of the pickup device by the first control means, and means for discriminating the type of recording when the pickup device reaches the program area during the operation of the first and second control means. By this provision, a queuing time before the playback of the recorded program is shortened without a fear of omitting the program area.

REFERENCES:
patent: 4106058 (1978-08-01), Romeas et al.
patent: 4142209 (1979-02-01), Hedlund et al.
patent: 4236232 (1980-11-01), Jansen et al.
patent: 4330880 (1982-05-01), Van Dijk
patent: 4428074 (1984-01-01), Abe et al.
patent: 4437180 (1984-03-01), Takeuchi
patent: 4519056 (1985-05-01), Kimoto et al.
patent: 4519057 (1985-05-01), Higashihara et al.
Pioneer Electronic Corporation, "Laser Disc Player VP-1000 Service Manual", May 1980, pp. 1, 3, 24, 26, 37, 33 (Rewrite of Description on p. 33), 92, 116, 108, and 104.

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