Display aspect ratio adaptation
US5287042A · kind A · utility
8Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1992 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Aug 24, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/233
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A selectable aspect ratio raster is generated on a CRT with a 16:9 aspect ratio screen by a deflection yoke and deflection amplifier. The deflection amplifier is coupled in a non-floating configuration to the deflection yoke. This permits a switching arrangement to control the horizontal deflection amplitude by the selectable addition of inductance in series, with the yoke. The switching arrangement also controls other deflection circuit parameters to provide optimum raster correction at the selected aspect ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.