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. 31, 1984
Filed:
Feb. 18, 1983
Kenji Fujikawa, Yokohama, JP;
Ryusho Hirose, Yokosuka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A television camera having a photo-taking lens, an image pick-up device to take an image of a photographic object formed on its image pick-up surface by the photo-taking lens, a synchronous signal generator to control operations of the pick-up device, and an electronic view finder which displays the photographic object image based on an image pick-up signal obtained by the pick-up device. In this type of camera, there are further provided a detecting device to detect a focussed state of the photographic object image formed on the above-mentioned image pick-up surface, and a pattern generator to generate a pattern signal corresponding to the detected state. On the basis of the synchronous signal from the above-mentioned synchronous signal generator, an output from the pattern generator can be displayed at a predetermined position on the image surface of the above-mentioned electronic view finder.