US 8,621,329 B2 · Reconfigurable BCH decoder

Abstract

An apparatus generally having a port, a first circuit and a second circuit is disclosed. The port may be configured to receive a current length of a codeword. The current length may be less than a maximum length of the codeword that the apparatus is designed to decode. The first circuit may be configured to calculate in parallel (i) a sequence of intermediate syndromes from the codeword and (ii) a sequence of correction values based on the current length. The second circuit may be configured to generate a particular number of updated syndromes by modifying the intermediate syndromes with the correction values. The particular number is generally twice a maximum error limit of the codeword.

Claims20

Dependent claims

An apparatus comprising:

a port configured to receive a current length of a codeword, wherein said current length is less than a maximum length of said codeword that said apparatus is designed to decode;
a first circuit configured to calculate in parallel (i) a sequence of intermediate syndromes from said codeword, one of said intermediate syndromes at a time, and (ii) a sequence of correction values based on said current length, one of said correction values at a time;
and
a second circuit configured to generate a particular number of updated syndromes by modifying said intermediate syndromes with said correction values, wherein said particular number is twice a maximum error limit of said codeword.

1 more element

Dependencies are inferred from the claim text.

Reconfigurable BCH decoder

Life of this patent

Reconfigurable BCH decoder

Life of this patent

Abstract

Claims20