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. 02, 1985
Filed:
Jun. 18, 1982
Applicant:
Inventors:
Takao Kinoshita, Tokyo, JP;
Kazuya Hosoe, Kunitachi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250201 ; 354406 ;
Abstract
This specification discloses a detecting device provided with means for receiving radiation coming from an object and producing an electrical signal related thereto, focus detecting means for processing the produced electrical signal and producing a focus discrimination or determination signal, the detecting means forming a focus related or parametric signal in the course of the processing of the electrical signal, and relative movement detecting means coupled to the focus detecting means to detect the relative movement between the object and the device on the basis of the focus related or parametric signal.