Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2005-08-17
2008-09-02
Chaudry, Mujtaba K (Department: 2112)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S785000
Reexamination Certificate
active
07421640
ABSTRACT:
A method and apparatus for providing error correction capability to longitudinal position data are disclosed. Initially, data are encoded via a set of even LPOS words and a set of odd LPOS words. The encoded data are then decoded by generating a set of syndrome bits for each of the LPOS words. A determination is then made as to whether or not there is an error within one of the LPOS words based on its corresponding syndrome bits.
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Jones, DM;Disk File Phase-Encoded Sector Servo Pattern with Data and Reference Fields in Each Sector; TDB 1-87, p. 3697-3699.
Cideciyan Roy D.
Eleftheriou Evangelos S.
Jaquette Glen A.
Seger Paul J.
Chaudry Mujtaba K
Dillon & Yudell LLP
International Business Machines - Corporation
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