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Solid-state imaging device and imaging method

A solid-state imaging device and pixel signal technology, applied in image communication, TV, color TV components, etc., can solve the problem of not being able to maintain weighted summation

Inactive Publication Date: 2016-01-27
KK TOSHIBA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, weighted addition at a desired ratio can be performed in a certain reading period, but the desired weighted addition cannot be maintained because the pattern of the signal input to the weighting circuit changes in the next reading period.

Method used

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  • Solid-state imaging device and imaging method

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Embodiment approach

[0029] figure 1 It is a block diagram showing a schematic configuration of the solid-state imaging device according to the embodiment. figure 2 is equipped with figure 1 A block diagram showing a schematic configuration of a camera system of a solid-state imaging device. image 3 is set at figure 2 A schematic diagram of the optical system in the shown camera system.

[0030] The camera system 40 is an electronic device equipped with a camera module 41 , such as a digital camera. The digital camera may be either a digital still camera or a digital video camera. The camera system 40 may be a portable terminal with a camera, which is an electronic device other than a digital camera.

[0031] The camera system 40 has a camera module 41 and a post-processing unit 42 . The camera module 41 has an imaging optical system 43 and a solid-state imaging device 1 . The post-processing unit 42 has an image signal processor (ISP) 44 , a storage unit 45 and a display unit 46 .

[0...

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Abstract

The invention provides a solid-state imaging device capable of reading pixel signals while constantly switching the read directions of vertical signal lines. According to one embodiment, the solid-state imaging device includes selecting circuits, read switching circuits, and a switching control circuit. The selecting circuits are configured to select some of weighting circuits to be used for weighting, in association with pixel signals read through plural ones of vertical signal lines. The read switching circuits are configured to switch read directions of pixel signals from the vertical signal lines. The switching control circuit is configured to output a control signal for switching selection of the weighting circuits to the circuit selection circuits, in response to switching of the read directions.

Description

[0001] References to related applications [0002] This application enjoys the benefit of priority of Japanese Patent Application No. 2014-112526 filed on May 30, 2014, and the entire content of the Japanese Patent Application is cited in this application. technical field [0003] This embodiment generally relates to a solid-state imaging device and an imaging method. Background technique [0004] Conventionally, so-called weighted addition is known as one of the processes performed by a CMOS image sensor. In the CMOS image sensor, as a weighted addition, the signal levels of pixels of the same color that are parallel to each other in the horizontal direction in the pixel array are added at a certain ratio. [0005] Also, in a CMOS image sensor in which AD converters are arranged vertically above and below a pixel array, there is known a method of reading pixel signals while switching the reading directions of vertical signal lines from time to time. Among the green pixels...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/341H04N5/3745H04N25/00H04N25/46
CPCH04N25/76H04N25/78H04N25/41H04N25/48H04N25/447H04N25/75
Inventor 佐藤麻纪
Owner KK TOSHIBA
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