Coding and decoding a signal modified in accordance with the feedback states of an encoder
US6917655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2002 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Jun 29, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data encoding system includes a modifier, an encoder, and a feedback. The modifier receives a first data stream and modifies the first data stream so as to provide a second data stream. The encoder encodes the second data stream in order to provide an output. At least a portion of the output has predetermined symbol values. A feedback from the encoder to the modifier provides encoder states to the modifier. The modifier modifies the first data stream based on the encoder states so as to facilitate the encoder in providing the portion of the output having the predetermined symbol values. A receiver receives a signal based on the output and decodes the signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.