Patent №
US 4,618,976
Granted
1986-10-21
Filed 1984
Owner
SIEMENS AKTIENGESELLSCHAFT BERLIN AND MUNICH A GERMAN CORP.
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06630674
For angiographic X-ray examinations with an image intensifier-television installation, three image memories are connected to a control generator which in respective clock pulse intervals cyclically places a respective one of the image memories in the write state for the purpose of storage of a current video signal which is averaged over several images. A subtraction device for the subtraction of image data occurring at various times receives the current video signal and the output signal of the one image memory in the write state. Connected to the subtraction device is a maximum detector which recognizes the maximum of the contrast medium flow and in response thereto actuates the control generator to cause the image memory which was last in the write state, and the image memory with the chronologically oldest video signal to be switched to the read state and to produce a difference signal for display on a video display based on the readout from such image memories.
AI classification
Ownership
SIEMENS AKTIENGESELLSCHAFT BERLIN AND MUNICH A GERMAN CORP.
assignment · 42860042
Assignors
HAENDLE, JOERG
On an employer assignment, the assignors are typically the inventors.