Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2005-03-08
2005-03-08
Garber, Wendy R. (Department: 2612)
Television
Camera, system and detail
Combined image signal generator and general image signal...
C348S308000, C250S208100, C341S172000
Reexamination Certificate
active
06864919
ABSTRACT:
An output signal of an image sensor pixel, which substantially avoids fixed pattern noise contributed by the readout circuitry, is provided. The apparatus, which is used to provide an output signal that is a function of the difference between two sample signals VS1and VS2, includes first and second capacitor elements that are coupled together at a common terminal. A reference voltage VREFis first applied to the capacitor elements, then a first sample signal VS1from the image sensor pixel is applied to the first capacitor element producing a charge that is transferred to the second capacitor element. A second sample signal VS2from the image sensor pixel is then applied to the first capacitor element producing a charge that is also transferred to the first capacitor element such that VO=VS2−VS1+VREF.
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Garber Wendy R.
Pearne & Gordon LLP
Symagery Microsystems Inc.
Villecco John
LandOfFree
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