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US 6,486,913 B1Granted
Pixel array with shared reset circuitry
AssigneeIntel Corporation
InventorsMorteza Afghahi, Ramin Rajabian
Life of this patent
Estimating the term…
Abstract
An image sensor circuit including a set of pixels associated with a pixel output node and a reset circuit associated with the set of pixels to set each pixel to a predetermined value.
Claims16
An image sensor circuit comprising:
- a set of pixels associated with a pixel output node;
- and
- a reset circuit associated with the set of pixels to set each pixel to a predetermined value, the reset circuit comprising an electrode that surrounds at least a portion of the set of pixels.
A pixel array comprising:
- a first pixel comprising a first light sensitive circuit element;
- a second pixel comprising a second light sensitive circuit element;
- a reset electrode to establish a predetermined signal at the first pixel and the second pixel;
- a first differential circuit coupled to the first light sensitive circuit element to measure a value corresponding to a difference of the predetermined signal and a signal generated by the first light sensitive circuit element;
- and
- a second differential circuit coupled to the second light sensitive circuit element to measure a value corresponding to a difference of the predetermined signal and a signal generated by the second light sensitive circuit element.
3 more elements
An imaging system comprising:
- an optical system for being exposed to a light;
- an image sensor coupled to the optical system to receive the light, the image sensor having a plurality of pixels, a pixel comprising:
- photodetecting circuitry providing a signal representative of the light,
- shared resetting circuitry providing a predetermined signal to the pixels, the resetting circuitry comprising a transistor having a gate surrounding a photodetecting structure of the photodetecting circuitry,
- amplifying circuitry, providing an output signal in response to receiving the signal representative of the light at an input,
- storage circuitry coupled to the output providing an exposed voltage in response to output signal;
- image processing circuitry coupled to the storage circuitry providing captured image data;
- and
- an output interface providing captured image data to an image processing system.
6 more elements
A pixel circuit comprising:
- a light sensitive element coupled to a node;
- a reset transistor coupled to the node to establish a signal at the node, the reset transistor comprising an electrode that surrounds the light sensitive element.
Dependencies are inferred from the claim text.