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:
Mar. 07, 2006
Filed:
Apr. 01, 2004
Satoru Kotani, Hirakata, JP;
Toshihiko Maruoka, Ikeda, JP;
Keisuke Tanaka, Toyonaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An on-screen display device that can effectively utilize a video RAM area. This on-screen display device includes a video RAM that holds character data of desired characters that are to be displayed; a display character setting unit for locating the number of bits as many as the remainder that is obtained by dividing character data corresponding to one character by the number of bits that can be read at one-time access from the video RAM, collectively by one line in the video RAM; buffers for storing a part of character data of the respective characters; a character generator ROM for outputting font data corresponding to the character codes; and a display control unit for reading character data from the video RAM via the buffers at the display of the characters, and reading the font data that are created by the character generator ROM, thereby outputting an on-screen output signal.