Parallel system and method for cyclic redundancy checking (CRC) generation
US6560742B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1999 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Dec 9, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/091
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention involves a method for generating a partial Cyclic Redundancy Checking (CRC) value of a first interval of data in a digital data stream. The method includes the step of loading a precomputed CRC value corresponding to a one bit followed by a predetermined number of zeros. The predetermined number of zeros correspond to the number of digits of a polynomial minus one. The first interval of data is partitioned into a plurality of bits. The precomputed CRC value corresponding to the one bit followed by the predetermined number of zeros is enabled, for each of the plurality of bits having a value of one. The enabled, precomputed CRC values are combined to generate the partial CRC value of the first interval of data. Advantageously, multiple copies of the process may be executed in parallel to achieve a large speed-up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.