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:
Jun. 16, 1987
Filed:
Jul. 12, 1984
Applicant:
Inventors:
Jacques Lewiner, 92210 Saint Cloud, FR;
Georges Charpak, 75020 Paris, FR;
Elie Pollak, 94400 Vitry sur Seine, FR;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324457 ; 324452 ; 361220 ;
Abstract
The invention relates to a device for reading the quantities of electrical charges borne by a dielectric sheet using a probe scanning the charged surface of the sheet and connected to an electronic circuit adapted to measure the quantities of charges induced on said probe. This electronic circuit comprises an operational transimpedance amplifier and an analog integrator reset to zero periodically by suitable circuitry.
Lewiner, Jacques. (1987). Devices for reading the quantities of electrical charges borne by a (U.S. Patent No. 4673885). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4673885
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile