Data synchronization detection method, information recording...

Details Data synchronization detection method, information recording... Data synchronization detection method, information recording...

2006-03-28

2006-03-28

Lamarre, Guy J. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error detection for synchronization control

C714S707000, C714S775000, C375S354000, C375S376000, C370S514000

Reexamination Certificate

active

07020833

ABSTRACT:
Data synchronization detection is provided between data identification and code demodulation in a data reproduction system, which performs data synchronization detection using code-modulated data. A specified bit pattern generated in a data codeword is calculated in each phase (bit), using a specified bit sequence pattern that is not generated in a specified phase of the data codeword. For example, a specified bit sequence pattern is generated only in a specified phase of the codeword). The positions of the data codeword partitions are thereby identified. Scrambling is then applied to the write data as required in order to ensure accurate synchronization detection.

REFERENCES:
patent: 4707681 (1987-11-01), Eggenberger et al.
patent: 5844920 (1998-12-01), Zook et al.
patent: 5963602 (1999-10-01), Aoki et al.
patent: 10-255400 (1998-09-01), None
patent: 11-243345 (1999-09-01), None

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