Data correction circuit

Details Data correction circuit Data correction circuit

1980-12-24

1982-11-23

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Record editing

360 722, 360 143, 369 83, G11B 2702, G11B 1518

Patent

active

043608418

ABSTRACT:
A time code correction circuit is formed of an input circuit for receiving an input time code; first and second memories for storing data representing the time code; an adder for selectively incrementing or decrementing data to be supplied to the first and second memories; a comparator comparing the data stored in the first memory with the input time code; a switch controlled by the comparator for selectively supplying the adder with the input time code and the data started second memory; and an output circuit coupled to provide the contents of the second memory as a corrected output time code. Where the time code is reproduced from a time code track recorded on a magnetic tape, the correction circuit is favorably adapted to produce a continuous time code sequence despite dropout in the recorded time code. Also, if a jump occurs in the recorded time code sequence, the correction circuit causes the output time code to reflect such jump with a minimum of signal disturbance.

REFERENCES:
patent: 4134131 (1979-01-01), Hopkins, Jr.

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