Image sensor power supply
US8120700B2 · kind B2 · utility
0Cited by
3References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Jul 29, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/709
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor may have a power supply voltage regulator controlled by a feedback loop. The feedback signal may be derived by applying the supply voltage at a point distant from the voltage regulator to an analog-to-digital converter (ADC) which may be a spare channel of an ADC provided for the output of the pixel array. The digital feedback loop may be controlled via a chip I2C bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.