Method and apparatus using multiple codes to increase storage ca

Details Method and apparatus using multiple codes to increase storage ca Method and apparatus using multiple codes to increase storage ca

1987-11-10

1989-02-14

Shoop, Jr., William M.

Coded data generation or conversion

Digital code to digital code converters

To or from run length limited codes

341 61, 341 67, H03M 700

Patent

active

048049590

ABSTRACT:
To increase storage capacity of a disk storage device, the recording surface of the device is partitioned into a plurality of concentric recording bands, data to be recorded on respective bands are encoded using different run-length-limited codes with the code rate of each band being higher than the adjacent inner band.

REFERENCES:
patent: 3689899 (1972-09-01), Franaszek
patent: 4714967 (1987-12-01), Bizjak
Young, M. S., "Constant-Density Recording Comes Alive with New Chips", Electronic Design, Nov. 1986, pp. 141-144.

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