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:
Oct. 03, 2000
Filed:
Aug. 06, 1999
Shigeo Enomoto, Tokyo, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A trembling compensation and control apparatus detects an angular displacement of an optical axis of a focusing optical system and drives and controls an compensation optical system so as to compensate for trembling of a camera. The angular displacement of the optical axis of the focusing optical system is detected by an angular velocity sensor. A low-cut filter is provided that processes and calculates an angular displacement velocity signal output from the angular velocity sensor. The low-cut filter cuts a low frequency component from the angular displacement velocity signal and outputs a valid angular displacement velocity signal. The valid angular displacement velocity signal is converted by an integration portion into an angular displacement signal. A level detector is further disposed for detecting the valid angular displacement velocity signal. The low-cut filter and the integration portion are modified in calculation processing when said level exceeds a predetermined level, and are reset in calculation processing when the level becomes within the predetermined level again.