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.

Date of Patent:
May. 09, 1989

Filed:

Sep. 25, 1986
Applicant:
Inventor:

Hiroshi Kageyama, Utsunomiya, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
2503272 ; 378175 ;
Abstract

Disclosed is an X-ray image-processing apparatus which is used, for example for diagnosis of a blood vessel. The X-ray image-processing apparatus comprises a plate-type recording medium divided into at least two recording areas, moving apparatus for moving the plate-type recording medium to a first and second position directly below an X-ray incident opening in a frame, so that two X-ray images are recorded in two recording areas respectively, X-ray image input circuitry for reading, as electric signals, the two X-ray images recorded on the recording medium, input image memory for A/D (Analog/Digital) conversion of the output of the X-ray image input circuitry, and for storing the image in the form of digital signals, image separating circuits for separating the two X-ray images from the imput image memory, arithmetic logical operation circuits for subtracting the two X-ray images separated by the image separating circuits and for subtracting the desired image, and a display device for D/A (Digital/Analog) conversion of the image signals output from the output image memory, and for displaying the resultant image.


Find Patent Forward Citations

Kageyama, Hiroshi. (1989). X-ray image-processing apparatus (U.S. Patent No. 4829182). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4829182

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