Disk drive circuit with partial match detection for predetermine

Details Disk drive circuit with partial match detection for predetermine Disk drive circuit with partial match detection for predetermine

1992-07-06

1995-10-24

Beausoliel, Jr., Robert W.

Excavating

G06F 1100

Patent

active

054616336

ABSTRACT:
In a disk drive where data bits containing a bit sequence signifying a specified location of a data block are read from a disk. A reference bit sequence identical to the recovered bit sequence is generated. Each of the recovered bit sequence and the reference bit sequence is divided into M groups of K bits. The M groups of the recovered bit sequence and the corresponding M groups of the reference bit sequence are compared with each other and a coincidence signal is produced for each of M pairs of compared groups when there is a bit-by-bit match therebetween. A match detector determines if the coincidence signal is generated from all pairs of the compared groups or from N out of M pairs of the compared groups.

REFERENCES:
patent: 4317200 (1982-02-01), Wakatsuki et al.
patent: 4775977 (1988-10-01), Dehara
patent: 4933786 (1990-06-01), Wilson
patent: 5023612 (1991-06-01), Liu

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