Interactive multi-sensory reading system electronic teaching/learning device
US7203455B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Jan 2, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B5/06
- WIPO fieldControl
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.