Audio processor circuit for an FM-stereo radio receiver
US3952161A · kind A · utility
7Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Oct 21, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/1684
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio processor is disclosed which includes circuitry for modifying pure left and right audio signals by blending the left audio signal with the right audio signal as a function of frequency and for rolling off the higher frequencies of the blended signal. The processor further includes circuitry for selecting complementary portions of a blended, rolled-off audio signal and a pure audio signal as a function of the RF carrier strength to improve the overall listenability of the audio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.