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:
Jul. 27, 1999
Filed:
Oct. 16, 1997
Werner Kuhlmann, Munich, DE;
Martin Schmidt, Emskirchen, DE;
Rolf Lindner, Erlangen, DE;
Roland Ziegler, Erlangen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
In a photodiode array suitable for use in an x-ray detector for computed tomography, the influences of direct conversion of x-rays into contributions to the electrical output signal and optical cross-talk between channels in the photodiode array are significantly reduced by integrating a number of extraction diodes into the photodiode array, with one extraction diode disposed between each two neighboring photodiodes. The anodes of all of the extraction diodes are connected together at a common anode contact, the common anode contact being connected to a voltage source which applies a voltage across all of the extraction diodes for operating the extraction diodes reverse biased, i.e. so as to block current flow.