Laser diode voltage source controlled by video look-ahead
US9736439B2 · kind B2 · utility
2Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2014 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | May 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanning projector includes a programmable voltage source to provide a programmable voltage to a laser light source. A look-ahead circuit determines future voltage requirements by finding peaks in future pixel data. The programmable voltage may change for each frame of video, for each line of video, or multiple times within each line of video.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.