Signal decoding system
US4589129A · kind A · utility
54Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1984 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Feb 21, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S3/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal decoding system for use in a quadraphonic type sound reproducing system is disclosed. In accordance with one aspect of the invention, a multiband expander is used to control the steering of the four information signals decoded from the two input signals. In accordance with another aspect of the invention, the difference between the rear and front signals is used to enhance virtual sound images to one side of a listener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.