Method and system for decompressing color video slope encoded data
US4843466A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1988 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Apr 27, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/93
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The method and system of decompressing color video data for use in a video information communication system utilizes digitized run length and color information to represent the pixels in the scan lines of a video picture frame. The digitized signals are of a first digital word size, the run length portion of the digitized signal is of a second digital word size and the color portion of the digitized signal is of a third digital word size. The run length portion and the color portion are stored in an array in a memory to represent the pixels in the scan lines of the video picture frame. The memory consists of a pingpong A buffer memory and a pingpong B buffer memory, from which the run length and color information is transferred to a display drawing engine. The color portion of the digitized signal is converted into three digital color components of fourth, fifth, and sixth digital word sizes as a series of digitized signals representing individual pixels, which is then converted in a digital to analog converter to analog format for display on monitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.