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. 02, 2004
Filed:
May. 17, 2002
Applicant:
Inventors:
Assignee:
Hamamatsu Photonics K.K., Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/700 ;
U.S. Cl.
CPC ...
H01L 2/700 ;
Abstract
Each of N optical detector parts to has a photodiode PD, a capacitor C and a switch SW . An amplifier A , an integrator circuit capacitor C , and a switch SW , are connected in parallel between the input terminal and the output terminal of an integrator circuit The capacitance of the integrator circuit capacitance C is equal to the capacitance of the capacitor C in each of the N optical detector parts to . A switch SW , is equipped between the input terminal of the integrator circuit and the switch SW for each of the N optical detector parts to . A switch SW is equipped between the output terminal of the integrator circuit and the switch SW in each of the N optical detector parts , to .