System for simultaneous display of multiple video windows on a display device
US5642498A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Apr 12, 1994 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | Apr 12, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/440263
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for simultaneous display of multiple video windows on a display device. This system includes a primary interface for receiving a primary video signal and a primary storage memory for storing data representing the primary video signal. Further, the present invention provides a plurality of secondary interface for receiving a plurality of secondary video signals and a secondary storage memory for storing data representing the plurality of secondary video signals. An output for selectively outputting the contents of a primary storage memory and the secondary storage memory to a display device so as to display video imagery represented by the primary video signal and secondary video signals in respective multiple video windows on the display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.