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:
Jan. 08, 2002
Filed:
Feb. 27, 1998
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 3/10 ;
U.S. Cl.
CPC ...
A61B 3/10 ;
Abstract
A blood flow measuring apparatus includes a system control unit that sends outputs for controlling the start and end of the measurement to optimum gain calculation units, which calculate the optimum gains of photomultipliers for receiving the light reflected from the eye fundus and the system control unit controls whether the optimum gains are outputted or not. Also, the optimum gain calculation unit respectively supply the system control units with outputs for monitoring whether the setting of the optimum gain has been completed or not, whereby the system control unit discriminates whether the photomultipliers have been set at the optimum gains.