Method of quantizing predictive errors
US4815078A · kind A · utility
96Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Mar 31, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S250/909
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Predictive errors are grouped into a plurality of quantizing ranges, and the predictive errors in the respective quantizing ranges are represented by representative quantizing values assigned respectively to the quantizing ranges. The predictive error data items in each of the quantizing ranges are processed to provide a weighted mean value based on the frequency distribution thereto. The weighted mean value or a value close thereto is used as a representative quantized value for that quantizing range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.