Magnetic recording encoder system for a (1,7) channel having a 2

Details Magnetic recording encoder system for a (1,7) channel having a 2 Magnetic recording encoder system for a (1,7) channel having a 2

1997-11-06

1999-07-13

Edun, Muhammad

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369 47, 360 48, G11B 700

Patent

active

059236299

ABSTRACT:
An improvement in a system for encoding a data field on a disk with write gate data. The system has an encoder and a data receiving controller for directing write gate data in the form of 0 and 1 bits to the encoder. The encoder, in response to the write gate data, produces a primary code in the form of 0 and 1 bits and directing the primary code to the disk. The primary code has certain predetermined criteria with the encoder producing a secondary coding rate as an exception when the write gate data does not result in the predetermined criteria. The improvement comprises a mechanism for ensuring that the last predetermined number of bits in the data field are free from the exception.

REFERENCES:
patent: 4413251 (1983-11-01), Adler et al.
patent: 5761170 (1998-06-01), Kimura et al.

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