Methods and devices for randomizing burst errors

Details Methods and devices for randomizing burst errors Methods and devices for randomizing burst errors

2007-06-05

2007-06-05

Decady, Albert (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S762000, C714S701000

Reexamination Certificate

active

10620362

ABSTRACT:
Error bursts are randomized by an interleaver which makes use of “set leaders” to generate permutation indices. The permutation indices are used to route bits from initial positions in an input bit stream to re-arranged or randomized positions in an output bit stream. When the output bit stream is then transmitted and subsequently received by a de-interleaver which returns the received bits to their initial, pre-randomized positions, the resulting received signal has an acceptable bit error rate.

REFERENCES:
patent: 5321725 (1994-06-01), Paik et al.
patent: 5946357 (1999-08-01), Sandin et al.
patent: 6023783 (2000-02-01), Divsalar et al.
patent: 2003/0028838 (2003-02-01), Chang et al.

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