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:
Jun. 15, 1993
Filed:
Mar. 08, 1991
Takashi Chikuma, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
In a television receiver having a picture tube with the picture plane aspect ratio being different from the image size aspect ratio in the existing standard television system, when an image in the existing standard television system is displayed, variation in the video signal positioned adjacent to at least one of the vertical ends on the picture plane of the picture tube is detected. If no variation an enlargement mode enlarging the image size is selected, and if any variation a normal mode displaying the image in ordinary size is selected, thereby the enlargement mode or the normal mode is selected automatically in response to the effective image size and the troublesome work of manually changing the modes is eliminated.