Patent · US Expired

Method and apparatus for producing an X-ray image by means of a photoconductor

US4752944A · kind A · utility

60Cited by

2References

4Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Norbert Conrads · Raeren, BE
Walter Hillen · Besigheim, DE
Peter Quadflieg · Aachen, DE
Ulrich Schiebel · Aachen, DE

Key dates

Filing date	Aug 8, 1986
Grant date	Jun 21, 1988
Priority date	—
Expiry date	Aug 8, 2006

Classification

Technology area (CPC H)Electricity
CPC primaryH04N5/3205
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method and apparatus for producing an X-ray exposure by means of a photoconductor. Photoconductor defect locations which appear as artefacts in the X-ray image are eliminated by subtracting a compensated dark discharge image from the X-ray image.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.