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:
Jul. 04, 1995
Filed:
Oct. 04, 1993
Applicant:
Inventor:
Roger G Dower, Vancouver, CA;
Assignee:
Antivision Systems Corp., Vancouver, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ; G01B / ; G01B / ;
U.S. Cl.
CPC ...
324452 ; 324457 ; 324662 ; 324112 ; 382312 ;
Abstract
Electrostatic imaging apparatus comprises a plurality of electrostatic radiators and a signal generator for driving the radiators to produce an electrostatic field having characteristics modifiable by the presence of an object within the field. The field characteristics are detected and processed to produce output signals representative of a surface profile of the object.