Time base device for a watch
US8259537B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2009 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Nov 27, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G17/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The time base device for a watch includes at least one electric motor coil (30), an electronic module (1) that has at least one time base oscillator circuit mounted in a case of the module, and an electric power source (8). The electric motor coil (30), the electronic module (1) with an oscillator circuit and the voltage source (8), which is preferably a battery, are connected to each other mechanically and electrically without the use of a printed circuit board to form a compact unit. The electronic module includes four connection terminals (14, 15, 16, 17) on an external surface for connecting the voltage source on one side and the wires (31, 32) of a winding of the coil (30) on the other side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.