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:
Mar. 30, 1999
Filed:
Mar. 17, 1997
Kaoru Arai, Omiya, JP;
Shigeo Suzuki, Omiya, JP;
Fuji Photo Optical Co., Ltd., Omiya, JP;
Abstract
A structure for eliminating the noise in a light source device for an electronic endoscope safely eliminates the high-frequency noise produced from the lighting circuit, the xenon lamp and the like in the light source device. A capacitor for eliminating noise having a predetermined withstand voltage is connected between the support of the lighting circuit and the box body of the light source device so as to introduce the noise current produced by the switching operation of the lighting circuit to the ground. EMI springs are disposed between the outer peripheral surface of the conductive case of the lighting circuit and the xenon lamp and the inter peripheral surface of the box body of the light source device. A ferrite core for eliminating noise is provided on a conductive wire connecting the lighting circuit and the xenon lamp, thereby safely eliminating noise.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile