Visual and audible activated work and method of forming same
US4703573A · kind A · utility
Inventors
Key dates
| Filing date | Feb 4, 1985 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Feb 4, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An activated work comprising at least two turnable pages pivotably attached to one edge of each of the pages so that the pages are pivotable from a juxtaposed closed position to an adjacent opened position, a visual image display affixed to one of the pages, the visual image display having a first visual activation state at which a visual image is not visible thereon and a second visual activation state at which a visual image is visible thereon, a sound generator attached to the work having a first activation state at which an audible sound is not generated and a second activation state at which an audible sound is generated, connected to the visual display for selectively activating the visual display from one of the visual activation states to another upon pivoting the pages from the open position to the closed position, and connected to the sound generator for selectively activating the sound generator from one of the sound activation states to another upon pivoting the pages from the closed position to the opened position or from the opened position to the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.