Apparatus for decoding error correcting code

Details Apparatus for decoding error correcting code Apparatus for decoding error correcting code

1986-05-20

1988-05-03

Atkinson, Charles E.

Excavating

360 381, G06F 1110

Patent

active

047425199

ABSTRACT:
Apparatus for decoding an error detecting or correcting code constructed from digital information data and redundant data for detecting or correcting errors in the digital information data, the digital information data and redundant data being reproduced from a record medium by a playback apparatus that operates in a normal speed mode and fast and slow speed modes, includes a first decoder for decoding the error detecting or correcting code and for generating flag data indicating error conditions of the digital information data, a first memory for storing the digital information data subjected to the decoding in the first decoder, and a second memory for storing flag data. A controller is provided with a mode signal indicating a normal playback mode or a fast playback mode of the record medium playback apparatus for controlling the first and second memories so as to read out the digital information data and flag data, respectively, when the mode signal indicates the normal reproducing mode and so as to read out the digital information data without error and the flag data, respectively, when the mode signal indicates the fast reproducing mode.

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patent: 4336612 (1982-06-01), Inoue et al.
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patent: 4447902 (1984-05-01), Wilkinson
patent: 4497055 (1985-01-01), Hoshino et al.
patent: 4646301 (1987-02-01), Okamoto et al.
patent: 4653051 (1987-03-01), Sugimura et al.
patent: 4653052 (1987-03-01), Doi et al.

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