Reproducing apparatus capable of controlling equalization charac

Details Reproducing apparatus capable of controlling equalization charac Reproducing apparatus capable of controlling equalization charac

1996-05-29

1999-01-26

Faber, Alan

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

G11B 5035

Patent

active

058644423

ABSTRACT:
A digital data reproducer, such as a VCR, reproduces digital data from a plurality of types of recording media. An equalizer includes a plurality of all-pass filters, for equalizing the reproduced digital data. A controller controls the equalization characteristics of the equalizer in accordance with the type of recording media, and controls the group delay characteristics of at least one of the plurality of all-pass filters. Thus, a single equalizer may be used for the plurality of types of recording media.

REFERENCES:
patent: 4338644 (1982-07-01), Staar
patent: 4422108 (1983-12-01), Sampei et al.
patent: 4841385 (1989-06-01), Nakano
patent: 5587848 (1996-12-01), Shimotashiro et al.
"All pass for universal sc filters"by Al-Hashimi, B. Electronics World & Wireless World Vol. 99, pp. 511-514, Jun. 1993.

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