Adaptive gain-shape rate sharing
US10192558B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Dec 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/038
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved gain-shape vector quantization is achieved by determining a number of bits to be allocated to a gain adjustment- and shape-quantizer for a plurality of combinations of a current bit rate and a first signal property. The bit allocation is derived by using an average of optimal bit allocations for a training data set. A number of bits to the gain adjustment and the shape quantizers for a plurality of combinations of the bit rate and a first signal are pre-calculated, and a table indicating the number of bits to be allocated to the gain adjustment- and the shape-quantizers for a plurality of combinations of the bit rate and a first signal property is created. In this way, the table can be used for achieving an improved bit allocation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.