Sound generating circuit for timepiece
US4481852A · kind A · utility
8Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1981 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Jul 7, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G13/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sound generating circuit for a timepiece including a sound base signal generator, a program divider, a dividing ratio selecting counter a sound interval base signal generator and a sound producer, whereby the sounding action of frequencies which repeatedly changes at the sound intervals and cycles is performed and can produce the onomatopoetic sounds of bird chirp, insect churr and the like which feels soft and soothing for the users.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.