Quantized digital filter
US4853969A · kind A · utility
10Cited by
11References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1988 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | May 10, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal processing system (10) is provided for digitally filtering an input digital signal. The signal processing system (10) includes a digital filter (12) without normal finite precision arithmetic whose output is applied to an adaptive quantizer (14). The output of the adoptive quantizer (14) includes a digital signal having a number of bits per sample which is less than or equal to the number of bits per sample contained in the output of the digital filter (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.