X-ray examination

Details X-ray examination X-ray examination

1974-10-10

1976-12-07

Griffin, Robert L.

Telegraphy

Systems

Simplex-reversing periodic

178DIG1, 178DIG5, H04N 718

Patent

active

039964205

ABSTRACT:
A method and apparatus for X-ray examining organs and parts of the body of human beings and/or animals, wherein the X-ray image is reproduced by means of a television circuit on the viewing screen of a monitor. Photographs of the X-ray image are taken as a film disposed in front of the screen of the monitor is exposed to the monitor picture for a period of time including a plurality of image scan cycles. During this period of time the gain in the television circuit is varied in accordance with a time function such that the brightness of the monitor picture remains constant during this period.

REFERENCES:
patent: 2739257 (1956-03-01), Sheldon
patent: 3567854 (1971-03-01), Tschantz
patent: 3580997 (1971-05-01), Webb
patent: 3602641 (1971-08-01), Heise
patent: 3745245 (1973-07-01), Yunde
patent: 3758723 (1973-09-01), Green

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