Electric self-teaching apparatus utilizing printed and auditory means
US4664634A · kind A · utility
Inventors
Key dates
| Filing date | Sep 20, 1985 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Sep 20, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B5/062
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Self-teaching apparatus is disclosed herein having a platform for supporting a card carrying printed indicia and a record disc. Information carried on the disc and the printed area is coordinated so as to be meaningful in practice. Record disc playback mechanism and an operating circuit is intercoupled with an electrical probe actuator so that the auditory instructions or information can be related to the printed indicia. In one form, a solid, pliable platform is employed with a membrane switch included in the circuit and, in another form, holes are placed through the platform for passing an electric tip on the probe for contact with a plate connected to the circuit. The card is provided with holes in the latter form and without holes in the former form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.