US Patent No: 7,929,034
Number of patents in Portfolio can not be more than 2000
Active pixel sensor array reset
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Apr 19, 2011
Issued date -
Nov 27, 2006
filing date -
11/563,608
serial no -
In Force
status
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Abstract
The method and apparatus for resetting an Active Pixel Sensor (APS) array comprises a controller for sequentially pre-resetting groups of one or more sensors in the array and then simultaneously resetting all of the sensors. The groups may be formed from one or more adjacent or non-adjacent individual sensors, rows or columns of sensors. The apparatus may further include a detector for sensing the bias voltage present on the array substrate in order for the controller to determine the number of sensors in the groups being reset. This method and apparatus assure that current flow is kept at a fairly steady level to avoid large variations in current flow that may disrupt other functioning circuits on the substrate including latch-up.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 6,603,513 Using a single control line to provide select and reset signals to image sensors in two rows of a digital imaging device | 11 | 1999 | |
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| 6,175,383 Method and apparatus of high dynamic range image sensor with individual pixel reset | 56 | 1996 | |
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| 5,585,814 Resetting circuit and apparatus utilizing the same | 5 | 1995 | |
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| 5,262,871 Multiple resolution image sensor | 379 | 1989 | |
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| 6,549,234 Pixel structure of active pixel sensor (APS) with electronic shutter function | 9 | 1998 | |
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| 5,869,837 Radiation imaging panel | 28 | 1997 | |
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| 5,452,004 Focal plane array imaging device with random access architecture | 69 | 1993 | |
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| 5,881,184 Active pixel sensor with single pixel reset | 27 | 1997 | |
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| 6,311,895 Optical reader with condensed CMOS circuitry | 28 | 1999 | |
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| 4,827,348 Exposure control system for dual mode electronic imaging camera | 46 | 1988 | |
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| 4,609,825 Device for modulating the sensitivity of a line-transfer photosensitive device | 11 | 1983 | |
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| 5,572,257 Arrangement comprising a sensor matrix | 16 | 1995 | |
Patent Citation Ranking
Maintenance Fees
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| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 19, 2022 |
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