Compensation arrangement for display systems
US5013978A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1989 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Sep 6, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/2335
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A compensation arrangement for a display system that adaptively compensates the display parameters thereof for each pixel position to provide a precise display image that automatically adapts to the scan rate and aspect ratio of its sweep circuit. The sweep signals are sensed directly to define the actual instantaneous scan position. The sweep position is used to generate a compensation parameter for compensating the display signals. In a preferred embodiment, a lookup table is used to store compensation parameters, a compensation parameter is accessed from the table in response to the sweep signals, and the accessed compensation parameter is used to compensate the display signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.