Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1983-02-01
1985-08-06
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
128654, 364414, 378 99, H06N 718
Patent
active
045339465
ABSTRACT:
A diagnostic X-ray apparatus emitting a pulsed X-ray radiation and including a processor for performing digital X-ray subtraction imaging which includes digitization of the video signals from an image intensifier--TV chain, digital subtraction and reconversion of the resultant digital difference video signals to analog signals, wherein the subtraction is performed for selected television images by ignoring a predetermined number of preceding television images in a predetermined image sequence.
REFERENCES:
patent: 4204225 (1980-05-01), Mistretta
patent: 4204226 (1980-05-01), Mistretta et al.
patent: 4458267 (1984-07-01), Dolazza
patent: 4468696 (1984-08-01), Stone
Conference Proceedings of Society of Photo-Optical Instrumentation Engineers, vol. 127, Application of Optical Instrumentation in Medicine VI, Boston, Mass., USA (25-27 Sep. 1977) pp. 208-215.
Toshiba Review, International Edition, Sep. 1973, No. 85, T. Tsuneoka et al, "X-Ray Examination Dose Reduction System".
Toshiba Review, International Edition, Jul.-Aug. 1969, No. 43, M. Nakashika et al, "Latest Diagnostic System for Circulatory Organs".
Fujita Hitoshi
Okazaki Kiyoshi
Yasuhara Hiroshi
Britton Howard W.
Tokyo Shibaura Denki Kabushiki Kaisha
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