Data coding for enforcing constraints on ones and zeros in a...

Details Data coding for enforcing constraints on ones and zeros in a... Data coding for enforcing constraints on ones and zeros in a...

2007-09-11

2007-09-11

Decady, Albert (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C341S059000

Reexamination Certificate

active

10423552

ABSTRACT:
A communications channel such as a data storage system removes unwanted bit patterns from user data without using run length limited coding on the user data. A buffer receives the user data. A data dependent scrambler communicates with the buffer and selects one of a plurality of scrambling sequences based the user data stored in the buffer or generates a scrambling sequence based on the user data stored in the buffer. A scrambling device communicates with the data dependent scrambler and scrambles the user data stored in the buffer with the selected scrambling sequence from the data dependent scrambler.

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