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:
Oct. 12, 1993
Filed:
Jan. 07, 1992
Applicant:
Inventors:
Hideyasu Koumo, Yamatokoriyama, JP;
Fumiaki Kawawaki, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36470916 ;
Abstract
An electronic computer of the invention adopts prefix unary operators, so that key operation for entering arithmetic or mathematical expressions is performed in the normal order of the operands and operators of the expression, and moreover the last calculation result can be directly used as the operand for the prefix unary operator. Therefore, sequential calculations can be performed step by step while checking the intermediate results by simple key operation.