| 发明名称 |
MECHANICAL TIMEPIECE MOVEMENT PROVIDED WITH A FEEDBACK SYSTEM FOR THE MOVEMENT |
| 摘要 |
The mechanical timepiece movement includes at least one barrel, a set of gear wheels driven at one end by the barrel, and an escapement mechanism of a local oscillator with a resonator in the form of a sprung balance and a feedback system for the timepiece movement. The escapement mechanism is driven at another end of the set of gear wheels. The feedback system includes at least one precise reference oscillator combined with a frequency comparator to compare the frequency of the two oscillators and a mechanism for regulating the local oscillator resonator to slow down or accelerate the resonator based on the result of a comparison in the frequency comparator. |
| 申请公布号 |
US2017045861(A1) |
申请公布日期 |
2017.02.16 |
| 申请号 |
US201615196215 |
申请日期 |
2016.06.29 |
| 申请人 |
ETA SA Manufacture Horlogere Suisse |
发明人 |
WINKLER Pascal;DI DOMENICO Gianni;CONUS Thierry;HELFER Jean-Luc |
| 分类号 |
G04C3/10 |
主分类号 |
G04C3/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A mechanical timepiece movement, which includes at least one barrel, a set of gear wheels driven at one end by the barrel, and an escapement mechanism of a local oscillator with a resonator in the form of a sprung balance, the escapement mechanism being driven at another end of the set of gear wheels, and a feedback system for the timepiece movement,
wherein the feedback system includes at least one precise reference oscillator combined with a frequency comparator for comparing the frequency of the two oscillators and a mechanism for regulating the resonator of the local oscillator to slow down or accelerate the resonator based on the result of a comparison in the frequency comparator. |
| 地址 |
Grenchen CH |
