Apparatus and method for encoding an information signal
US8655652B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Mar 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/032
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for encoding an information signal having discrete values includes a quantizer having a quantizer border, wherein the quantizer is adapted so that a discrete value above the quantization border is quantized to a quantization index, which is different from a quantization index obtained by quantizing a discrete value below the quantization border, a controller for modifying the quantization border, wherein the quantizer having a first quantization border setting is adapted to generate a first set of quantization indices for the discrete values, and wherein the quantizer having a second modified quantization border setting is adapted to generate a second set of quantization indices, and an output interface for outputting an encoded information signal which is either based on the first set of quantization indices or the second set of quantization indices dependent on a decision function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.