Apparatus for scrolling a video display
US4445114A · kind A · utility
42Cited by
8References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 3, 1980 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Oct 3, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/343
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video game includes apparatus for scrolling playfield objects appearing on the display unit of the game. The apparatus selectively offsets the address used to access an addressable random access memory containing data indicative of the TV picture displayed. The random access data, when accessed, is used to address a video data memory which provides the building block components of the video display. Further scrolling effect is obtained by selectively delaying the video data communicated to the video display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.