Rotary head reproducing apparatus that displays date, time, and

Details Rotary head reproducing apparatus that displays date, time, and Rotary head reproducing apparatus that displays date, time, and

1997-03-24

1999-12-14

Psitos, Aristotelis M

Dynamic magnetic information storage or retrieval

Recording or reproducing plural information signals on the...

386 65, G11B 502

Patent

active

060025379

ABSTRACT:
A rotary head type reproducing apparatus capable of displaying each data code indicative of date, time and frame number, without interruption even during reproduction from a recording track on which a recording is made with such data code absent. In the apparatus, a recording track having a data code signal recording area in which a search marker is recorded is scanned by a rotary head, and when the search marker is reproduced and outputted, the search marker is demodulated by a search marker demodulating circuit and, simultaneously, the output of a data interpolating circuit is selected at the input of a switch. Each time a variation point of an SWP (head switching pulse) is detected by an SWP detecting circuit, the data interpolating circuit increments the respective count values of a frame counter, a time counter and a date counter decoded from a data code, on the basis of a data code obtained immediately before the demodulation of the search marker, and outputs the result to a system control circuit. The system control circuit displays the respective count values on a display.

REFERENCES:
patent: 4360843 (1982-11-01), Menezes et al.
patent: 4799111 (1989-01-01), Ito
patent: 4970612 (1990-11-01), Renders et al.
patent: 5233438 (1993-08-01), Funahashi et al.
patent: 5383069 (1995-01-01), Morita et al.

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