Display signs comprising a flat panel loudspeaker
US6956492B2 · kind B2 · utility
2Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2001 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Dec 11, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display sign is in the form of a flat panel loudspeaker, the graphics of the display being carried on one exposed surface of the flat panel, the latter being provided with one or more transducers such that the flat panel may be energized to transmit sound in accordance with signals supplied to the one or more transducers. The sign may also be provided with an arrangement for storing inputs made by a user for later retrieval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.