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. 02, 2012
Filed:
Jan. 25, 2007
Applicant:
Masanao Murata, Tokyo, JP;
Inventor:
Masanao Murata, Tokyo, JP;
Assignee:
Olympus Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/22 (2006.01); A61B 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An endoscope apparatus, includes: an explosion-proof unit that has an image pickup device that outputs photographed video images as video image signals; and an A/D converter that converts the video image signals into digitalized image signals; a control unit that controls the explosion-proof unit; and an energy limiting circuit that is provided at the control unit and that limits electrical energy of digital signals to satisfy intrinsic safety when sending and receiving of the digital signals, wherein the explosion-proof unit is connected to the control unit via the energy limiting circuit with a signal line.