Scaling of demodulated data in an interleaver memory
US6975692B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2000 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Feb 24, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/658
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a method of demodulating and decoding an encoded interleaved signal, a received encoded interleaved signal is demodulated, thereby producing soft-decision demodulated output words. Thereafter, the soft-decision demodulated output words are de-interleaved and scaled, thereby producing de-interleaved and scaled words. The scaling is performed for a plurality of successively demodulated output words at a time, thereby applying a scale factor that is substantially constant over the entire span of an interleaving frame. The de-interleaved and scaled words are word-length-reduced words. Finally, the de-interleaved and scaled words are decoded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.