The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2010
Filed:
Dec. 08, 2008
Yasunori Nagata, Hashima, JP;
Yasuhisa Yamada, Ame-gun, JP;
Yuuki Tashita, Hashima, JP;
Sanyo Electric Co., Ltd., Moriguchi-Shi, JP;
Sanyo Semiconductor Co., Ltd., Ora-Gun, JP;
Abstract
A image stabilization control circuit for an image capturing device, wherein a gyro-equalizer () integrates an angular velocity signal from a gyro-sensor () in an integration circuit (). The integration circuit () is composed of a low-boost filter (LBF), and a phase delay in a target compensation region is set to a value appropriate for an integration process. Furthermore, a characteristic whereby the LBF reduces the phase delay at higher frequencies is used, compensation is applied to the excess phase delay of the angular signal in the high-frequency region brought about by the effect of the phase delay generated in the high-frequency region by the output signal of the gyro-sensor (), and the phase delay in the high-frequency region is brought nearer to 90 degrees. This allows the accuracy of the process for determining the required displacement magnitude of a lens to be increased.