Imaging apparatus having a read out circuit unit with dual readout operation and method of improving a frame rate
US7514663B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2007 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Jul 11, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/779
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image apparatus capable of improving a frame rate to prevent resolution in the predetermined area from decreasing and forming image signals outside the predetermined area has an area sensor in which a plurality of pixels is arranged in a matrix, a drive circuit unit, a read out circuit unit and a processing unit processing signals transferred from the read out circuit unit. The drive circuit unit and the read out circuit unit perform a first operation in which signals are simultaneously read out from N pixels in a first area of the area sensor (where N is an integer equal to one or more) and a second operation in which signals are simultaneously read out from M pixels in a second area except the first area of the area sensor (where M is an integer equal to two or more and always greater than N), the first and second read out operations are continuously performed in one frame period, and a first and a second signal obtained by the first and the second read out operations are continuously transferred from the read out circuit unit to the processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.