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.

Date of Patent:
Jun. 03, 2014

Filed:

Nov. 09, 2010
Applicants:

Kisoo Kim, Daejeon, KR;

Eun Soo Nam, Daejeon, KR;

Jae-sik Sim, Daejeon, KR;

Yong-hwan Kwon, Daejeon, KR;

Bongki Mheen, Daejeon, KR;

Myungsook OH, Daejeon, KR;

Inventors:

Kisoo Kim, Daejeon, KR;

Eun Soo Nam, Daejeon, KR;

Jae-Sik Sim, Daejeon, KR;

Yong-Hwan Kwon, Daejeon, KR;

Bongki Mheen, Daejeon, KR;

Myungsook Oh, Daejeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/44 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a photo detector. The photo detector includes: an avalanche photodiode; a bias circuit supplying a bias voltage to one end of the avalanche photodiode; a detection circuit connected to the other end of the avalanche photodiode and detecting a photoelectric current occurring in the avalanche photodiode; and a coupling capacitor connected to the one end or the other end of the avalanche photodiode and supplying a coupling voltage to drive the avalanche photodiode in a Geiger mode.


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