The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 1980
Filed:
Dec. 22, 1978
Applicant:
Inventor:
Herve Gautier, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358213 ; 358201 ; 310322 ;
Abstract
An acousto-electric analysis device for an optical image in one or two dimensions. It comprises a piezoelectric substrate and a semi-conductor substrate with a diode network on the face which is opposite the piezoelectric substrate. The optical image is projected on this face and causes each of the diodes to discharge as a function of the luminous intensity received at each point. A high frequency acoustic pulse, which propagates on the piezoelectric substrate, enables the diodes to be recharged by supplying a video signal representing the analysis of the image projected.