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:
May. 16, 1989
Filed:
Sep. 23, 1987
Robert A Chattin, Mundelein, IL (US);
Gendex Corporation, Franklin Park, IL (US);
Abstract
A MAS regulating system for high frequency medical X-ray generator produces a control signal to stop the exposure when the milliamp-seconds delivered by the X-ray tube becomes equal to or greater than a desired maximum amount set by an operator. The system comprises a converter circuit for converting a signal corresponding to a desired MAS value set in by the operator into a first digital signal having a predetermined format. A digital integrator circuit integrates and converts the actual MA current in the X-ray tube to a digital MAS signal corresponding to the actual MAS value of the current in the X-ray tube and in the same predetermined format as the first digital signal. A comparing circuit compares the first and second digital signals and produces a control signal to stop the exposure when the second digital signal is greater than the first digital signal.