Stabilized pico-projector device and related image stabilization method
US9383591B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 2013 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Mar 4, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3129
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pico-projector device includes a light source operable to generate a light beam as a function of an image to be generated, a mirror mechanism operable to direct the light beam towards a displaying surface, and a driving circuit that supplies driving signals for controlling movement of the mirror mechanism. The driving circuit includes a compensation stage that receives angular velocity signals from a gyroscopic sensor coupled to the pico-projector device and generates the driving signals as a function of the angular velocity signals, thereby stabilizing the image projected on the displaying surface with respect to undesired movements of the pico-projector device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.