System for the projection of cinematographic works and digital works with sound
US8009854B2 · kind B2 · utility
0Cited by
14References
11Claims
0Family size
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Key dates
| Filing date | Apr 9, 2004 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Apr 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for the projection of cinematographic works or digital works with sound having at least one sound channel. The system comprises a screen and, for the sound channel, at least one woofer and at least one medium/treble transducer. The screen is a non-perforated screen. The medium/treble speaker is a flat sound transducer placed against the screen to the rear thereof in relation to the direction of projection. An extreme treble speaker is disposed on the periphery of the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.