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:
Nov. 19, 2019
Filed:
Dec. 25, 2017
Industrial Technology Research Institute, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A radiation image detector with automatic exposure detection includes a high voltage circuit unit for providing an operation bias. An image sensing panel includes semiconductor multi-layer structure, receives the operation bias and senses an incident X-ray, and produces holes and electrons. The holes produce positive charges for forming an image. An automatic exposure detector is coupled to the high voltage circuit unit to transfer the operation bias and detects variation pattern with time of a voltage signal or a current signal induced by the electrons to determine an onset time or a cessation time for exposure. A control unit couples to the high voltage circuit unit, the image sensing panel, and the automatic exposure detector and configured to perform system control, including obtaining an image signal from the image sensing panel. An imaging unit couples to the control unit to process the image signal and display and store the image.