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. 05, 2001
Filed:
Apr. 10, 1998
Akiyoshi Satoh, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Objects of the present invention are to realize that a plurality of mathematical expressions are inputted and displayed within the same screen in textbook book format, and that a plurality of mathematical expressions are inputted and displayed in textbook book format and one line format. A plurality of mathematical expressions which are inputted in textbook book format or one line format by use of a keyboard are stored into an expression storing buffer on a data storing RAM memory. The plurality of stored mathematical expressions are developed on a main buffer and a sub buffer of a display forming buffer on the data storing RAM memory, and an image which is produced by synthesizing the display data of the two display forming buffers is formed in VRAM on the data storing RAM memory by using CG data on a program ROM, and displayed on a liquid crystal display via a liquid crystal driver. A small electronic apparatus has a system in which these processes are performed by operating CPU in accordance with a program on the program ROM.