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Shake correction drive signal control device, shake correction device, and imaging device

A technology for driving signals and control devices, applied in image communication, instruments, televisions, etc., can solve problems such as noise generation, and achieve the effect of reducing noise

Active Publication Date: 2020-07-17
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this configuration, the magnetic field generated by the voice coil for driving the mobile platform generates noise in the pixel signal of the A / D converter

Method used

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  • Shake correction drive signal control device, shake correction device, and imaging device
  • Shake correction drive signal control device, shake correction device, and imaging device
  • Shake correction drive signal control device, shake correction device, and imaging device

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Experimental program
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Embodiment Construction

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 Shown is a block diagram showing the configuration of an imaging device equipped with a shake correction drive signal control device according to the first embodiment of the present invention.

[0015] In the present embodiment, the imaging device 10 is, for example, a digital camera equipped with an imaging element such as a CMOS. The imaging device 10 includes an imaging unit 16 composed of an imaging lens 11, a diaphragm 12, a mechanical shutter 13, an imaging device (image sensor) 14, a shake correction drive circuit 15, and the like, and various control units 17, a signal processing unit 18, and the like. The processing device 19. In addition, the various control units 17 are connected to the input unit 20, the sensor 21, and the like, and the signal processing unit 18 is connected to the memory 22, the monitor 23, and the like.

[0016] The imaging elemen...

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PUM

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Abstract

The present invention relates to a shake correction drive signal control device, a shake correction device, and an imaging device for reducing noise caused by a shake correction drive signal when processing pixel signals in units of a plurality of horizontal columns. The shake correction drive signal control means controls the timing of turning on / off the shake correction drive signal based on the horizontal synchronization signal of the imaging element (14). This timing control means excludes at least one of the on / off timing of the drive signal from the processing period in which A / D conversion is performed collectively in units of a predetermined number of horizontal columns of the imaging element (14), and at the same time, The timing of on / off of the driving signal for the horizontal synchronizing signal is switched by the number of horizontal columns of the pixel signal to be A / D converted.

Description

technical field [0001] The present invention relates to a shake correction drive signal control device, a shake correction device, and an imaging device. Background technique [0002] In the shake correction device, the image pickup element and the correction lens are electromagnetically driven based on the detected shake of the image pickup device, thereby preventing image shake from occurring in the image pickup element. In addition, the pixel signal generated by the imaging element is converted into a digital signal by an A / D converter, and is output to a display or a memory after image processing in a DPS or the like. [0003] For example, in a known shake correction mechanism, a CMOS sensor assembled with a column-level A / D converter is mounted on a mobile platform provided with a voice coil, and a permanent magnet installed between the voice coil and the fixed platform Electromagnetic interaction is used to drive the mobile platform, thereby canceling camera shake (re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04N5/374
CPCH04N23/68H04N23/684H04N23/685H04N25/76H04N25/78G02B27/646H04N23/6812H04N23/667H04N23/687H04N25/75
Inventor 西村武刚朝仓直人
Owner RICOH KK