Digital write-and-read method and signal processing apparatus

Details Digital write-and-read method and signal processing apparatus Digital write-and-read method and signal processing apparatus

1997-03-06

1999-03-09

Canney, Vincent P.

Excavating

360 46, G06F 1100

Patent

active

058810714

ABSTRACT:
A digital write-and-read method and a signal processing apparatus wherein a write encoder includes a bit distribution circuit for dividing an input data block into n (n: 2 or more) series of bit strings and outputting them in parallel, a first coding circuit for executing predetermined coding for each of data series so distributed and a second coding circuit for converting the output bit series D1 to D3 of the first coding circuit to an n-bit channel code by looking up the previous channel code information, and wherein the second coding circuit executes coding by using a combination having a large Euclidean distance in a partial response equalization output taking inter-symbol interference of at least three bits into consideration as a pair.

REFERENCES:
patent: 5497384 (1996-03-01), Fredrickson et al.
IEEE TRANSACTIONS ON THEORY, vol. 37, No. 3, May 1991, pp. 818-855 (see Specification p. 4).
IEEE TRANSACTIONS ON MAGNETICS, vol. 31, No. 2, Mar. 1995, pp. 1208-1213 (see Specification p. 4).

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