Simultaneous global shutter and correlated double sampling read out in multiple photosensor pixels
US8582011B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2012 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Feb 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/532
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus controls operation of an array of color multiple sensor pixel image sensors to provide a global shuttering for one half of the color multiple sensor pixel image sensors and a rolling shuttering for all color multiple sensor pixel image sensors of the array. The apparatus includes a row control circuit and a column clamp, sample, and hold circuit. The row control circuit generates the necessary reset control signals, transfer gating signals, and row selecting signals for providing the global shuttering and the rolling shuttering color multiple sensor pixel image sensors. The column clamp, sample and hold circuit generates an output signal representative of a number of photons impinging upon each color multiple sensor pixel image sensor of the row of selected color multiple sensor pixel image sensors. The control apparatus further includes an analog to digital converter which converts the read out signal to a digital image signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.