Scan circuit and image sensor having scan circuit
US7721169B2 · kind B2 · utility
1Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2003 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Oct 8, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/3202
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanning circuit has path switches connected between a plurality of data flip-flop circuits of the scanning circuit for sequentially reading an output signal in synchronism with a clock. A plurality of control signal lines select the path switches to arbitrarily skip reading of the flip-flop circuits that do not require the scanning circuit and always fix a potential of the skipped data flip-flop circuit. Only the arbitrary data is read, and in the case where unnecessary data exists, reading is skipped, to thereby increase the read rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.