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. 23, 1982
Filed:
Nov. 28, 1979
Applicant:
Inventors:
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09B / ;
U.S. Cl.
CPC ...
434201 ;
Abstract
An electronic learning aid is disclosed, which automatically develops and displays problems, and functions to compare an answer introduced by a student with a correct answer stored in the electronic learning aid. A mode selection switch is provided for selectively placing the electronic learning aid in an exercise mode and in an examination (test) mode. In the exercise mode, a symbol display is energized for displaying information as to whether the introduced answer is correct or not upon every introduction of the answer by the student. In the examination (test) mode, the symbol display is not conducted, and a percentage score is displayed after completion of a series of problems.