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:
Nov. 22, 1983
Filed:
Oct. 08, 1981
Yuzuru Inoue, Machida, JP;
Takashi Shinozaki, Yokohama, JP;
Yoshichi Otake, Kamakura, JP;
Shinsuke Ono, Yokosuka, JP;
Victor Company of Japan, Limited, Yokohama, JP;
Abstract
The image of a subject imaged on the photoelectric conversion surface of a pickup tube of the color television camera is defocused in a given direction by a given amount to make a blur so that beat interference due to specific black and white pattern of the subject does not occur in the reproduced picture. In first and second embodiments of the present invention, at least one optical filter having specific characteristics is employed for defocusing the image, while in a third embodiment, an aperture stop is used to defocus the image by utilizing the aberration of the lens system of the color television camera. The aperture stop of the third embodiment may be used together with the optical filter(s) of the first and second embodiments.