Remote speaker for surround-sound applications
US5666422A · kind A · utility
27Cited by
12References
12Claims
0Family size
Inventors
Key dates
| Filing date | May 18, 1994 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | May 18, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/07
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A surround-sound system for use with conventional TV sets, using a wireless remote bipolar rear speaker (or two conventional speakers fed out of phase) for the surround (difference) channels. The use of the rear speaker(s) and the mono (left plus right) front speaker on the TV set creates "phantom" left and right front speakers, and allows full surround sound without modification to the TV set or additional amplifiers or speakers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.