Stereophonic sound system particularly useful in a cinema auditorium
US4074083A · kind A · utility
23Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1975 |
| Grant date | Feb 14, 1978 |
| Priority date | — |
| Expiry date | Aug 11, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S3/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A network is described which processes two channel stereophonic sound programs for playback through left, right and center sound reproduction channels. Use of the network allows certain advantages of a three channel program to be obtained from the two channel program. The network delays the left and right channels to give precedence to the center channel information but reduces the level of this information to enable the left and right channels to establish a stereo image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.