Digital audio amplifier
US4724396A · kind A · utility
38Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1986 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Jun 13, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/66
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital amplifier contains a circuit for converting the onset of a clipping condition into a missed pulse in a pulse width modulated pulse train generated from an analog signal and an improved circuit for producing a control voltage proportional to the extent of the clipping condition, which circuit includes a pulse counter for counting a predetermined number of missed pulses in the pulse train and a voltage generator for producing a voltage proportional to the extent of clipping when said predetermined number of missed pulses occurs. The generated voltage is applied to an attenuator for attenuating the analog input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.