Method and system which selectively uses different levels of err

Details Method and system which selectively uses different levels of err Method and system which selectively uses different levels of err

1995-06-07

1997-03-25

Baker, Stephen M.

Excavating

371 377, H03M 1300

Patent

active

056152213

ABSTRACT:
An inexpensive, high performance error detecting and correcting system capable of handling multiple errors with high throughput. Digital data is provided to a reconfigurable decoder which is initially set for a low level of correction and a high throughput. On detection of an error, a signal is generated which is used to dynamically reconfigure the decoder. The decoder is reconfigured at a higher correction level. The data is then reprocessed through the reconfigured decoder. In a specific implementation, the invention uses a Blahut decoder. N and K values to reconfigure the decoder are provided by a microprocessor. The invention contemplates use of an encoder operating at the highest level of correction required. Use of an initial low level of correction provides for a high throughput. Reconfigurability allows for high corrective power and associated lower throughput only when necessary.

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