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Jitter correction control circuit and imaging device having jitter correction control circuit

A control circuit and jitter correction technology, applied in the directions of printing equipment, projection equipment, color TV components, etc., can solve the problem of deviation of each component

Inactive Publication Date: 2011-02-02
SANYO ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In addition, in terms of the output from the Hall element incorporated in the imaging device, there is variation in each element

Method used

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  • Jitter correction control circuit and imaging device having jitter correction control circuit
  • Jitter correction control circuit and imaging device having jitter correction control circuit
  • Jitter correction control circuit and imaging device having jitter correction control circuit

Examples

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Embodiment Construction

[0023] Regarding the shake correction control circuit 200 in the embodiment of the present invention, as figure 1 As shown in the functional block diagram, it is configured to include an analog / digital conversion circuit (ADC) 20, an addition circuit 22, a servo circuit 24, a high-pass filter (HPF) 26, a pan / tilt judgment circuit 28, a gain adjustment circuit 30, and an integrating circuit. 32. Centering processing circuit 34, digital / analog conversion circuit (DAC) 36, CPU 38, peak detection circuit 40, and digital / analog conversion circuit (DAC) 42.

[0024] The shake correction control circuit 200 is connected to the position detection element 102 , the lens driving element 104 , and the vibration detection element 106 . These elements are the same as those described in the prior art. That is, the position detection element 102 is provided facing at least two or more axes so that the position of the lens driven by the lens driving element 104 can be measured at least by o...

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PUM

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Abstract

The invention provides a vibration correction control circuit capable of adjusting the amplitude and the voltage partial (offset voltage) of the signal from the vibration detection element of optical component. The vibration correction control circuit comprises at least one analog-to-digital converting circuit (20) that converts the signal from a vibration detection element (106) which detects vibration of an imaging device, and the signal from a position detection element (102) which detects a position of an optical component or an imaging element, into digital signals, and a logic circuitthat generates a control signal which drives the optical component or the imaging element, based on the signal from the vibration detection element (106) which is digitized by the analog-to-digital converting circuit (20) and the signal from the position detection element (102) which is digitized by the analog-to-digital converter circuit (20), wherein an offset value and an amplitude for the output signal of the position detection element (102) are adjusted.

Description

technical field [0001] The present invention relates to a shake correction control circuit built into an imaging device. Background technique [0002] In recent years, in imaging devices such as digital still cameras and digital video cameras, it is possible to achieve higher image quality by increasing the number of pixels of imaging elements included therein. On the other hand, as another method for achieving higher image quality of an imaging device, it is desirable that the imaging device has a hand-shake correction function in order to prevent shaking of an object to be photographed due to vibration of a hand holding the imaging device. [0003] Specifically, the imaging device has a detection element such as a gyro sensor, and drives optical components such as a lens or an imaging element in response to an angular velocity component generated by vibration of the imaging device to prevent shaking of the subject. Accordingly, even if the imaging device vibrates, the vib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B5/00H04N5/225H04N23/40
CPCG03B5/00H04N23/54H04N23/55H04N23/6812H04N23/687
Inventor 山田恭久田下裕树
Owner SANYO ELECTRIC CO LTD
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