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:
Nov. 09, 1982
Filed:
Dec. 03, 1980
Haruo Yamamoto, Sayama, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
An electronic self-study device in which problems are randomly generated comprises input keys by means of which a user inputs an answer to a displayed problem, and a review key which is depressed by a user to again display a problem incorrectly answered by the user. The device includes a judging means which judges whether or not the answer inputted by the user is correct, and a problem storing means is responsive to the judging means for storing a problem to which a wrong answer has been inputted. Further provided is a problem read-out control device which is responsive to operation of the reviewing key for causing the problem to which an incorrect answer was given to again be displayed so that the user may again answer the problem to which an incorrect answer has been given. According to a further aspect of the invention, a plurality of problems is displayed and, responsive to operation of the reviewing key, the incorrectly answered problems are sequentially read out of the problem storing means so that the user can again answer the incorrectly solved problem.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile