Solid-state imaging apparatus and its signal reading method

Abstract

In an arrangement where a plurality of horizontal signal lines are used to distribute pixel signals so as to realize a high speed operation, color differences and moire occurring in image signals are eliminated. It is shown that the pixel signals of a 2n-th row are being read out, and R pixels of the odd-numbered columns are outputted from a horizontal signal line (60A) to an output system (A). Meanwhile, Gr pixels of the even-numbered columns are outputted from a horizontal signal line (60B) to an output system (B). It is also shown that pixel signals of a 2n+1-th row are being read out, and Gb pixels of the odd-numbered columns are outputted from the horizontal signal line (60B) to the output system (B) via a switching operation of a switch circuit part (50). Similarly, the B pixels of the even-numbered columns are outputted from the horizontal signal line (60A) to the output system (A) via a switching operation of the switch circuit part (50).

Description

technical field [0001] The present invention relates to a solid-state imaging device such as a CMOS sensor that outputs a color image, and a method for reading a signal from the device. Background technique [0002] In general, a CMOS sensor is a solid-state imaging device that includes a two-dimensional pixel array of pixels. Each pixel includes: a photoelectric transducer for generating signal charges in response to incident light beams; and a pixel transistor for converting the signal charges into electric signals and outputting the electric signals. The CMOS sensor reads individual pixel signals through a plurality of vertical signal lines provided corresponding to columns of pixels, and processes the read pixel signals to output the processed signals to an output unit through horizontal signal lines. [0003] The CMOS sensor can randomly access individual pixels by selectively scanning pixels and signal processing circuits. [0004] Color filters with a predetermined ...

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Problems solved by technology

However, this problem may occur when increasing the number of horizontal signal lines to achieve a high read rate

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