Image dissector with many apertures for Hadamard encoding

Details Image dissector with many apertures for Hadamard encoding Image dissector with many apertures for Hadamard encoding

1976-07-13

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

235164, 250207, 315 11, 313103R, 3401463MA, H01J 3912

Patent

active

039696995

ABSTRACT:
An improved image dissector camera tube system for improving the signal-to-noise ratio in which the aperture plate of the image dissector has a plurality of apertures, the apertures individually biased by an electronic control network to accomplish a Hadamard encoding of the electron image.

REFERENCES:
patent: 3366735 (1968-01-01), Hecker
patent: 3694806 (1972-09-01), Freedman
patent: 3720838 (1973-03-01), Catchpole
patent: 3803443 (1974-04-01), Hant
patent: 3815090 (1974-06-01), Muenchhausen
patent: 3859515 (1975-01-01), Radcliffe
Decker, "Hadamard-Transform Image Scanning," Applied Optics, vol. 9, No. 6, June, 1970. pp. 1392-1395.
ETT, "Character Recognition Image Dissector," IBM Tech. Disclosure Bulletin, vol. 12, No. 9, Feb. 1970. pp. 1339-1340.

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