Method and apparatus for providing translucent images on a computer display
US5949432A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1997 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Apr 11, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for producing a translucent image over a base image created on the display screen of a computer system by a selected first application program, and conducting image operations either on said base image created by the selected application program with reference to the translucent image produced, or conducting image operations on said translucent image with reference to said base image of the first application program. The first application program runs on a central processing unit (CPU) of a computer system to produce a base image, and another application program referred to as the overlay program is run to produce the translucent image such that portions of the base image which are overlapped by the overlay image are at least partially visible through the translucent image. There is also a mechanism for blending the first video data and the second video data to produce a blended image on the screen assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.