Talking book
US4990092A · kind A · utility
111Cited by
18References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Aug 14, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B5/062
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A talking book including a power source, switches, voice chips and speaker, all of which are mounted within the book and act together to "read" the words written on pages of the book. The switches are pressure-sensitive types, and marked areas on the pages are pressed in order to activate the switches and the chips in order to produce words or other sounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.