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Optical image stabilization system and method for improving optical image stabilization

A technology for optical image stabilization and moving objects, which is applied to the components, optics, and propulsion systems of TV systems, and can solve problems such as unsuitable installation

Pending Publication Date: 2022-06-17
SEMICON COMPONENTS IND LLC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Most images are currently taken with smartphones with fixed focal lengths, mechanical OIS is ineffective, and often too large to fit within smartphone dimensions

Method used

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  • Optical image stabilization system and method for improving optical image stabilization
  • Optical image stabilization system and method for improving optical image stabilization
  • Optical image stabilization system and method for improving optical image stabilization

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Embodiment Construction

[0025] This application claims the benefit of, and priority to, US Provisional Patent Application No. 63 / 199,256, filed December 16, 2020, entitled "Methods and Apparatus for Optical Stabilization," which is incorporated by reference in its entirety. This article.

[0026] The technology may be described in terms of functional block components and individual processing steps. Such functional blocks may be implemented by any number of components configured to perform the specified functions and achieve various results. For example, the present technology may employ various types of acceleration sensors, actuators, attenuators, amplifiers, coils, transducers, drivers, filters, gyro sensors, image sensors, magnets, processors, sensors, signal generators, etc., These sensors perform various functions. Additionally, the present technology may be implemented in conjunction with any number of applications, and the described apparatus is only one exemplary application of the technol...

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Abstract

The invention relates to an optical image stabilization system and a method for improving optical image stabilization. At least one example is an optical image stabilization system comprising: a sensor configured to detect an interfering signal; a processor; an actuator; and an actuator driver. The sensor may be configured to detect an interference signal, where the interference signal applies a force to the moving body, and where the force causes the moving body to displace. The processor may be configured to: determine a target position of the moving body based on the detected interference signal; and determining a correction driving current according to the target position. The actuator may be configured to: receive a corrective drive current; and positioning the moving body in response to receiving the correction drive current, where the moving body is positioned in a direction opposite to the direction of displacement. The actuator driver may be configured to controllably operate the actuator according to the corrected drive current.

Description

technical field [0001] The present application relates to the technical field of image stabilization, and more particularly to optical image stabilization systems and methods for improving optical image stabilization. Background technique [0002] Optical Image Stabilization ("OIS") is a technique for reducing blur associated with motion of a camera or other imaging device during exposure. Typically, OIS compensates for angular motion of the imaging device, albeit with electronic image stabilization. [0003] Typically, OIS uses a combination of hardware and software processing that is designed to provide sharp and crisp photos even in low light. For example, the sensor that captures the image can move in a way that counteracts the motion of the imaging device, a technique commonly referred to as mechanical image stabilization. As the imaging device rotates causing angular errors, the gyroscope encodes the information to an actuator that moves the sensor. The sensor is mo...

Claims

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Application Information

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IPC IPC(8): H04N5/232
CPCH04N23/683H02K41/0356H04N23/6812H04N23/687G03B5/00G03B2205/0007G03B2205/0053H04N23/55
Inventor 田渕善久
Owner SEMICON COMPONENTS IND LLC
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