Method and apparatus for generating a stroke on a display
US4686642A · kind A · utility
19Cited by
11References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1984 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Oct 18, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G1/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for generating a stroke on a display comprising a pair of pulse train generators coupled to a pair of charge pump and integrator assemblies by means of a switch assembly. In operation, a first pulse train corresponding to the larger of the X and Y components of the stroke and a second pulse train corresponding to the ratio of the X and Y components of the stroke control the magnitude of the output of the charge pump and integrator assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.