Method and apparatus for minimizing noise pickup in image sensors
US7760250B2 · kind B2 · utility
5Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2007 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Jun 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for minimizing noise pickup in iSoC sensors using an improved Analog Capacitor Memory (ACM) design and optimized timing methods that together prevent direct connection of the electrical grounds between the low-speed signal processing circuit and high-speed signal processing circuit of an imaging System-on-Chip sensor. The ACM includes a two-terminal capacitor and two pairs of terminals. Each pair of terminals is connected via switches to separate circuits. The switches are controlled to isolate one side of the ACM from the other, thereby reducing the noise pickup between the circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.