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:
May. 19, 2020

Filed:

Jan. 02, 2018
Applicant:

Koninklijke Philips N.v., Eindhoven, NL;

Inventors:

Thomas Frach, Aachen, DE;

Klaus Fiedler, Vienna, AT;

Assignee:

KONINKLIJKE PHILIPS N.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T 1/208 (2006.01); G01T 1/20 (2006.01); G01T 1/29 (2006.01); G01T 1/24 (2006.01); G01T 1/164 (2006.01); G01T 7/00 (2006.01); A61B 6/03 (2006.01);
U.S. Cl.
CPC ...
G01T 1/2018 (2013.01); G01T 1/1642 (2013.01); G01T 1/248 (2013.01); G01T 1/2985 (2013.01); G01T 7/005 (2013.01); A61B 6/037 (2013.01);
Abstract

A radiation detector includes an array of detector pixels each including an array of detector cells. Each detector cell includes a photodiode biased in a breakdown region and digital circuitry coupled with the photodiode and configured to output a first digital value in a quiescent state and a second digital value responsive to photon detection by the photodiode. Digital triggering circuitry is configured to output a trigger signal indicative of a start of an integration time period responsive to a selected number of one or more of the detector cells transitioning from the first digital value to the second digital value. Readout digital circuitry accumulates a count of a number of transitions of detector cells of the array of detector cells from the first digital state to the second digital state over the integration time period.


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