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. 03, 1987
Filed:
Sep. 04, 1985
Applicant:
Inventors:
Toshiyuki Maegawa, Higashiosaka, JP;
Satoshi Tominaga, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
3403 / ; 3403 / ; 3403 / ; 364709 ;
Abstract
A programmable calculator is disclosed which has a plurality of keys each having a unique definition as an input key for introduction of instruction statements and constants through associated definition instructions. In the calculator, instruction definable keys each allow a definition instruction distinguishable from the first named definition instructions to be programmed. Each keys specific definition is defined by input keys which introduce different pieces of information as by depression of a conventional shift key. The information is introduced by the user to define the definable keys to perform desired instructions.