Automated testing apparatus for screen alignment
US4897721A · kind A · utility
31Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1988 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | May 16, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is an automated testing apparatus and process for screen alignment involving a pattern generator, sensors, and an analysis computer. Two sets of patterns are displayed on the screen being tested. Sensors are used to observe patterns on the screen. An analysis computer receives the data from these observations and then compares the observed data to data from an ideal screen to determine the screen's alignment parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.