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:
Sep. 30, 1980
Filed:
Oct. 17, 1978
Applicant:
Inventors:
Reiji Hirano, Yokohama, JP;
Koichi Mochizuki, Tokyo, JP;
Tokio Yasui, Tokyo, JP;
Jyoji Shimazu, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G09B / ;
U.S. Cl.
CPC ...
364710 ; 35 3 / ; 364419 ;
Abstract
An electronic calculator is provided with an input keyboard for receiving numerical data, a storage interconnected to the keyboard for storing the received numerical data, processing circuitry interconnected to the storage for processing the numerical data, a display for displaying steps of the arithmetic process of the numerical data, and a visualizing unit for visualizing the numerical data in response to the display. Each step of the arithmetic process of the data may be indicated in the display in response to instructions provided on the keyboard.