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:
Dec. 08, 2009
Filed:
Feb. 10, 2006
Takashi Yasuba, Ora-gun, JP;
Kenichi Nakajima, Hanyu, JP;
Takashi Yasuba, Ora-gun, JP;
Kenichi Nakajima, Hanyu, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
The invention relates to a color half tone display for giving a specific hue to a designated region while displaying the original image by a transparent display at the designated region in an on-screen display in a television receiver. A circuit for generating signals of respective colors of RGB by synthesizing a brightness component Y of the original image and chrominance components (R-Y), (G-Y), (B-Y) using an adderis provided with a switch elementfor restricting an input of the chrominance component to the adder. When an I signal designates a half tone display region, the switch elementis brought into OFF state based on the I signal. The color half tone display is carried out by attenuating an output signal of the adderby an amplifierfor respective signals of RGB, thereafter, shifting a direct current level of a component in accordance with a hue to be added in RGB by a DC shift circuit