Noise-shaper system and method
US6819276B1 · kind B1 · utility
15Cited by
6References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | May 13, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/502
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A noise-shaper system includes a scrambler coupled to receive the output of a randomizer. The randomizer has an input for receiving a plurality of parallel equally weighted bits in a first sequence, and a first output which provides said bits in a pseudorandom sequence with a transformation that is not dependant on said first sequence. The scrambler is coupled to receive the randomizer's output and, in response, to produce a second non-pseudorandom sequence of the bits at a second output with a transformation that is dependent on the pseudorandom sequence. The resultant output is noise shaped to reduce distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.