Musical light toy
US4344346A · kind A · utility
7Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1980 |
| Grant date | Aug 17, 1982 |
| Priority date | — |
| Expiry date | Sep 29, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S84/19
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A disc having holes in the periphery thereof is moved by successive increments so that the holes are successively brought into alignment with a photocell. The diameters of successive ones of the holes correspond to the pitch of successive tones in a musical selection. A tone generator is employed to develop a tone signal which varies in pitch in accordance with the diameter of the holes in the disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.