Laser driving circuit, laser driving method, projector apparatus and apparatus which uses laser light
US9225928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2013 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Sep 17, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a laser driving circuit, including: a plurality of laser driving video current generation circuits configured to generate a plurality of kinds of laser driving current for driving a plurality of laser light sources configured to emit laser light having wavelengths different from each other based on an inputted video signal; a high frequency superposition section configured to superpose a high frequency signal having a frequency higher than a frequency band of the video signal on the laser driving current generated by the laser driving video current generation circuits; and a waveform correction section configured to correct a waveform of the high frequency signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.