Calibration cell for micro-mirror drive circuit
US6940633B1 · kind B1 · utility
0Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2004 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Aug 2, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0693
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A micro-mirror system has a closely spaced array of micro-mirror cells, a calibration timing circuit, and test circuitry. Each micro-mirror cell has a micro-mirror and a timing circuit. The timing circuit controls deflection of the micro-mirror. The micro-mirror is in close proximity with the timing circuit. The calibration timing circuit is like the timing circuits of the micro-mirror cells. The test circuitry tests a time constant of the calibration timing circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.