System and method for enabling efficient error correction and encryption using wavelet transforms over finite fields
US6898756B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1999 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Mar 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A system and method for enabling efficient error correction and encryption using wavelet transforms over finite fields. The system and method utilizes the combination of a channel encoder and channel decoder to correct errors to source data after transmission over a physical channel or storage in a storage medium. The channel encoder mathematically generates a set of wavelet coefficients by performing a combination of filtering and/or processing of a received message vector. The wavelet coefficients are then utilized by the channel encoder to cause its filters to transform message data into transmission data. The channel decoder receives the transmitted source data in the form of a code word/channel error combination and performs filtering to render a syndrome, representative of the channel error. Analysis of the syndrome is performed to determine the actual error, which is utilized to derive the actual source data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.