Digital tone controls and systems using the same
US6898470B1 · kind B1 · utility
6Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2000 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Mar 19, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G5/005
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Digital tone controls 500 include a first path 502 including a digital filter 504 and a scaler 505 for controlling a level of a low frequency component of a received digital audio signal. A second 502 includes a digital filter 504 and a scaler 505 for controlling a level of a high frequency component of the received digital audio signal. A third path 503 includes a scaler 506 for controlling a level of an unfiltered component of the received audio signal. A summer 507 adds a contribution from each of the paths to generate a composite signal having a selected gain-frequency response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.