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:
Aug. 02, 1977
Filed:
Nov. 11, 1975
Applicant:
Inventors:
Ulrich Grassme, Nurnberg, DT;
Eickhardt Soder, Erlangen, DT;
Assignee:
Siemens Aktiengesellschaft, Berlin & Munich, DT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ; H05G / ;
U.S. Cl.
CPC ...
250413 ;
Abstract
An X-ray diagnostic apparatus having an adjustable mAs-relay for determining the exposure time. The adjustable mAs-relay is used for determining the exposure time, wherein the X-ray tube voltage and the X-ray tube current are varied in conformance with the fluctuations of the voltage supply. An operational amplifier may be employed, whose characteristics may, in a simple manner, be coordinated with the desired cycle of the mAs-product, in dependence upon the voltage supply. Additional auxiliary components for the voltage supply correlation are not required in the inventive arrangement.