Synchronizing circuitry for the playback and recording units of

Details Synchronizing circuitry for the playback and recording units of Synchronizing circuitry for the playback and recording units of

1988-12-27

1992-03-17

Levy, Stuart S.

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369 85, 369 14, 360 15, G11B 364, G11B 728, G11B 586

Patent

active

050974610

ABSTRACT:
A synchronizing circuit for a dubbing apparatus which is capable of a dubbing a signal played back from a playback unit to a recording unit in accordance with the operation of a dubbing command key. The synchronizing circuit essentially includes a circuit for checking the recording unit to determine if the recording unit has been brought into a stable recording condition and for producing a synchronous recording request signal, a device for driving the playback unit in response to the synchronous recording request signal, a circuit for checking the playback unit to determine if the playback unit is ready to playback and for producing a synchronous recording start signal, and a device for driving the recording unit into a recording mode in response to the synchronous recording start signal.

REFERENCES:
patent: 3014991 (1961-12-01), Logan
patent: 3560666 (1971-02-01), Bookman
patent: 4139875 (1979-02-01), Tatara et al.
patent: 4167026 (1979-09-01), Sambe et al.
patent: 4471390 (1989-09-01), Hamann
patent: 4543618 (1985-09-01), Sato

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