Signal processing
US7412220B2 · kind B2 · utility
8Cited by
5References
8Claims
0Family size
Inventor
Key dates
| Filing date | Apr 26, 2005 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Sep 7, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S1/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Signal processing apparatus produces an audio signal suitable for conveying a psychoacoustic perception of a low frequency audio signal to a listener, the apparatus generates harmonics of the low frequency signal by shaping the waveform of the low frequency signal with respect to time and/or level. This may be achieved using a peak-hold generator and a rectifier, or using a peak-hold-decay generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.