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:
Jan. 30, 2007
Filed:
Jan. 08, 2004
Toshihiko Maruoka, Ikeda, JP;
Keisuke Tanaka, Toyonaka, JP;
Toshihiko Maruoka, Ikeda, JP;
Keisuke Tanaka, Toyonaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
This invention provides an on-screen display device that can display an increased number of types of characters without enlarging the video RAM area. This on-screen display device includes a character generator ROM that has n (n is an integer that is equal to or larger than 3) areas, a flag holding unit that outputs an area designation flag for designating a desired number of desired areas among the n areas in the character generator ROM, a display character setting unit that writes a desired character code at a predetermined position in a video RAM, and a display control unit that reads the character code from the video RAM, reads font data corresponding to the read character code from an area in the character generator ROM, which is indicated by the area designation flag outputted from the flag holding unit, and outputs an on-screen output signal using the font data.