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:
Apr. 10, 2007
Filed:
May. 30, 2003
Stephen M. Ernst, Colorado Springs, CO (US);
John W. Taylor, Elma, NY (US);
Dagan Galarneau, Sacramento, CA (US);
Joseph E. Hoppy, East Aurora, NY (US);
James A. Bishop, Jr., North Tonawanda, NY (US);
Philip R. Pyrce, Getzville, NY (US);
James P. Meade, Hamburg, NY (US);
Stephen M. Ernst, Colorado Springs, CO (US);
John W. Taylor, Elma, NY (US);
Dagan Galarneau, Sacramento, CA (US);
Joseph E. Hoppy, East Aurora, NY (US);
James A. Bishop, Jr., North Tonawanda, NY (US);
Philip R. Pyrce, Getzville, NY (US);
James P. Meade, Hamburg, NY (US);
Mattel, Inc., El Segundo, CA (US);
Abstract
An electronic learning/teaching device operates with and without a printed sheet element having an arrangement of selectable content by means of a user responsive sensor array beneath a surface configured to receive the element. The sensor array is formed by cross-points of two sets of crossing conductive lines, one set being driven sequentially with a radio frequency square wave and the other set being sampled sequentially though a high impedance amplifier connection with an asynchronous detection circuit. Where more than one cross-point location is user activated, algorithms are used to identify one cross-point sensor location as the user activated selection.