Acoustic apparatus
US4408095A · kind A · utility
56Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1981 |
| Grant date | Oct 4, 1983 |
| Priority date | — |
| Expiry date | Mar 2, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/307
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An acoustic apparatus comprised of a means for extracting middle and high frequency components from left- and right-channel signals through respective high-pass filters to reproduce the components, and a means for mixing left- and right-channel signals and extracting a low frequency component through a low-pass filter to reproduce the component, wherein the reproduction power of the middle and high frequency component is set below the reproduction power of the low frequency component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.