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Solid state image sensing apparatus

一种固体摄像装置、固体摄像元件的技术，应用在固体图像信号发生器、图像通信、电视等方向，能够解决图像品质恶化、没有任何的公开等问题，达到降低噪声的效果

Inactive Publication Date: 2007-04-18
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, the above-mentioned conventional solid-state imaging device 100 has a problem that image quality is deteriorated due to the influence of noise generated by transmitting the imaging signal.
Therefore, as shown by the arrows 103a and 103b in FIG. 13, the image pickup signal is affected by the DSP output signal to generate noise.
Due to the influence of these noises, there is a problem that image quality deteriorates
[0021] Furthermore, in the prior art of Patent Document 1, by generating a timing signal in TG15 during the blanking period, the frequency-divided noise signal generated in TF15 can be prevented from overlapping with the imaging signal. However, in Patent Document 1, There is no disclosure that the CCD output signal and DSP output signal read from the MOS image sensor using the transfer signals O1 to Om of the horizontal shift register are affected by noise.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] FIG. 1 is a block diagram showing the configuration of main parts in Embodiment 1 of the solid-state imaging device of the present invention. Components having the same functions and effects as those of the conventional solid-state imaging device shown in FIG. 12 are denoted by the same reference numerals, and description thereof will be omitted.

[0066] In FIG. 1, in addition to the structure of the conventional solid-state imaging device shown in FIG. 12, the solid-state imaging device 10 also has a transmission timing adjustment unit in the DSP 3A as a signal processing unit for signal processing the imaging signal. The timing adjustment unit 31 and the temporary storage unit 32 as a temporary storage unit, the imaging signal is output from a solid-state imaging device (CCD2) that photoelectrically converts incident light, and the transmission timing adjustment unit 31 receives the signal from the TG15 as a timing generation unit. The timing pulse 23 is used as an i...

Embodiment 2

[0078] 4 is a block diagram showing the configuration of main parts in Embodiment 2 of the solid-state imaging device of the present invention. Components having the same functions and effects as those of the solid-state imaging device shown in FIG. 12 are denoted by the same reference numerals, and description thereof will be omitted.

[0079] In FIG. 4 , in addition to the configuration of the solid-state imaging device shown in FIG. 12 , the solid-state imaging device 20 also includes a vertical synchronization signal adjustment unit as a vertical synchronization signal adjustment unit in DSP 3B as a signal processing unit for signal processing an imaging signal. The signal adjustment unit 33 and the vertical signal storage unit 34 as a temporary storage unit, the imaging signal is output from the solid-state imaging device (CCD2) that photoelectrically converts incident light, and the vertical synchronization signal adjustment unit 33 converts the vertical synchronization s...

Embodiment 3

[0087] In the above-mentioned second embodiment, the case where the vertical blanking period is variably controlled has been described, and in the third embodiment, the case where the horizontal blanking period is variably controlled has been described.

[0088] 6 is a block diagram showing the configuration of main parts in Embodiment 3 of the solid-state imaging device of the present invention. Components having the same functions and effects as those of the solid-state imaging device shown in FIG. 12 are denoted by the same reference numerals, and description thereof will be omitted.

[0089] In FIG. 6, in addition to the structure of the conventional solid-state imaging device 30 shown in FIG. The horizontal synchronous signal adjustment section 35 and the horizontal signal storage section 36 as a temporary storage unit, the imaging signal is output from the solid-state imaging device (CCD2) that photoelectrically converts incident light, and the horizontal synchronous sig...

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Abstract

A solid-state image sensing apparatus comprises a signal processing section for performing signal processing on an image signal output from a solid-state image sensing device for performing photoelectric conversion of incident light, wherein the signal processing section includes: a temporary storage section for temporarily storing the image signal; and a transmission timing adjusting section for performing the output control of a transmission timing control signal and providing the transmission timing control signal to the temporary storage section such that the image signal stored in the temporary storage section is output within a period other than an image data interval of the image signal output from the solid-state image sensing device.

Description

technical field [0001] The present invention relates to a solid-state imaging device for processing an imaging signal output from a solid-state imaging element, which is used in electronic cameras such as video cameras, electronic digital cameras, and cameras for mobile phones. Background technique [0002] In recent years, solid-state imaging devices to which the above-mentioned solid-state imaging elements are applied have been widely used in applications of electronic cameras such as video cameras, electronic digital cameras, and cameras for mobile phones. It is desired to improve the quality of images captured by this solid-state imaging device. Therefore, in the solid-state imaging device, control is performed to reduce noise generated when predetermined signal processing is performed on the imaging signal obtained from the solid-state imaging element and when the imaging signal is transmitted and input / output. [0003] FIG. 12 is a block diagram showing the configurat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/335H04N5/225H04N5/232H04N1/21H04N5/341H04N5/357
CPCH04N1/2112H04N5/217H04N23/81H04N5/0675H04N23/10
Inventor 岩井嘉男木村胜治吉田卓司
Owner SHARP KK