Method and apparatus for quadraphonic enhancement of stereophonic signals
US3971890A · kind A · utility
4Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1975 |
| Grant date | Jul 27, 1976 |
| Priority date | — |
| Expiry date | Feb 10, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S5/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Method and apparatus are described for translating or "encoding" the left and right signals from a stereophonic source such that when the signals are reproduced by a four-channel decoder the resulting sound field is highly simulative of that produced from a quadraphonically-encoded record.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.