Loudspeaker system for use in a stereophonic sound reproduction system
US4058675A · kind A · utility
25Cited by
0References
10Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 15, 1976 |
| Grant date | Nov 15, 1977 |
| Priority date | — |
| Expiry date | Jun 15, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S5/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to improve characteristics of localization of sound images and a listener's sense of stereophonic perspective, a loudspeaker system for a stereophonic sound reproduction system comprises a main speaker adapted to be driven by audio input signal and radiate acoustic energies toward a listener for stereophonic reproduction, and a subspeaker adapted to be driven by the input signal and radiate out-of-phase acoustic energies which are smaller in magnitude than the acoustic energies provided by the main speaker and reach the listener with a time delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.