Active modules for large screen displays
US5523769A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Jul 1, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S345/903
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
High resolution modular large screen displays which can require tens of minutes to display or "paint" an image are updated in real time through the use of active modules, each having its own display device, display driver, processor, memory and interfacing. Communication channels are provided between modules themselves as well as between the modules and a network interface that distributes the video source material in parallel to the modules. The modular approach coupled with the use of active modules permits significant communication reduction that in turn permits real time image production across large areas due to the use of parallel data paths to the display memory distributed across the modules, and through the transmission of structured data, including compressed images, compressed video, sampled data and graphics primitives, permitted by the provision in each module of a processor which converts structured data to images. The use of modules with internal processing also permits driving displays of differing configurations, such as oblong, trapezoidal and even circular displays, or even driving displays with irregular surfaces. As a further result of using active modules, inc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.