Portable wireless sound reproduction system
US4829500A · kind A · utility
47Cited by
16References
2Claims
0Family size
Inventor
Key dates
| Filing date | Apr 23, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Apr 23, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A portable wireless sound reproduction system includes a first portable housing having a sound signal receiving circuit and controls for processing the sound signal into two signals for transmission by two separate sound signal transmitters located in the same housing. A pair of speakers is detachably connected to the first housing and include receivers for receiving the wireless transmission of signals from the transmitters. The two speakers are adapted to be disposed in side-by-relation with the first housing completely overlying and detachably connected to each of the speakers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.