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:
Aug. 30, 1977
Filed:
Dec. 15, 1975
Mitsuru Saito, Saka, JA;
Minolta Camera Kabushiki Kaisha, Osaka, JA;
Abstract
An apparatus for detecting the correctly focused image of the object projected on a focal plane, comprising a suitable optical system for forming the image of an object to be photographed on the focal plane, and a circuit which receives an electric signal transduced from the image light and controls a motor for displacing an objective lens assembly associated with the apparatus. Provision is made for eliminating detection of false signals which may erroneously control the motor, by employing a peak value holding circuit in the circuit means.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile