Interactive audio-visual work
US5437552A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1994 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Aug 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B5/062
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Apparatus for use in conjunction with a book containing intermixed text and symbols, includes a randomly accessible sound storage-and-playback memory having addressable storage locations, and a plurality of actuatable selectors, each selector being associated with a respective symbol corresponding to a symbol in the book. A switch selects between a recording mode of operation and a playback mode of operation. A microprocessor controls recording at respective addressable storage locations in the memory respective sounds produced by the user, the recorder being active during the selected recording mode of operation. The microprocessor controls the playback from the memory of a respective recorded sound, the playback means being actuated by the microprocessor upon actuation of a respective one of the selectors during the selected playback mode of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.