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:
Nov. 24, 1992
Filed:
Oct. 09, 1991
Hideo Yoshida, Omiya, JP;
Takashi Kagechika, Omiya, JP;
Fuji Photo Optical Co., Ltd., Saitama, JP;
Abstract
A camera shake detecting device includes a filter circuit, a variable gain amplifier and a camera shake detection/warning circuit. The filter circuit inputs a receiving output corresponding to a field luminance from a light receiving unit of an active type distance measuring device when the distance measuring device is not conducting a distance measurement, and gives an output, of which higher frequency components than frequency components due to camera shake are attenuated, to the variable gain amplifier. The variable gain amplifier of the gain is controlled corresponding to a mean light volume level of the field so that an amplitude of frequency components due to camera shake is not affected by the field luminance. The camera shake detection/warning circuit inputs an output of the variable gain amplifier, and issues a camera shake warning when the amplitude of frequency components due to camera shake is detected at least while a shutter is opened.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile