Digitally controlled vector generator for stroke written CRT displays
US4535328A · kind A · utility
4Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1982 |
| Grant date | Aug 13, 1985 |
| Priority date | — |
| Expiry date | Sep 13, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G1/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for developing horizontal and vertical deflection signals for drawing a vector of predetermined length and angle on the face of a cathode ray tube is disclosed. Variable rate integrators are caused to integrate at rates respectively definitive of the sine and cosine functions of the vector angle for a period of time which is proportional to the length of the vector to develop Y and X deflection signal outputs which collectively define the vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.