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. 17, 1992
Filed:
Oct. 30, 1990
Applicant:
Inventors:
Eugene E Hollis, Jr, Plano, TX (US);
Richard A Houghton, Dallas, TX (US);
Richard H Wallace, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09B / ;
U.S. Cl.
CPC ...
434327 ; 434335 ;
Abstract
An electronic learning device (10) uses keys (12a-e) which self-generate an electric signal responsive to a key being pressed. The electric signal is sufficient to drive a display (18) for indicating the correctness of the response. Cards (14) provide a query and a plurality of possible answers, each possible answer associated with one of the keys (12a-e). A correct answer is encoded on the card.