Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1975-11-20
1978-05-02
Griffin, Robert L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
250510, 250272, H04N 300, G01N 2320, G02B 518
Patent
active
040878376
ABSTRACT:
A system is disclosed for forming a video representation of an X-ray shadow picture of a body. The system comprises an X-ray source, an X-ray screen, a video circuit with scanning means and display means, and a plate positioned between the X-ray source and the body. The plate has a transparency to X-radiation varying over its surface for spatially coding the X-rays. The system includes means in the video circuit for decoding the signal produced by the scanning means so that in the picture produced by the display means, the influence of the scattered radiation caused by the body is substantially eliminated.
REFERENCES:
patent: 3950613 (1976-04-01), Macouski
Coles Edward L.
Griffin Robert L.
N. V. Optische Industrie "De Oude Delft"
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