发明名称 |
TIMEPIECE DEVICE AND METHOD OF OPERATION THEREOF |
摘要 |
A timepiece device includes a control unit for time keeping, which is synchronizable by a clock generator. The timepiece device has at least two crystal oscillators built respectively by at least one crystal unit, whereby a first crystal oscillator with a first crystal unit and with a predetermined nominal oscillation frequency is suitable for use as the clock generator of the control unit during a vehicle standby mode, and whereby the oscillation frequency of the first crystal oscillator is at least temporarily measured and adjustable by a second crystal oscillator with a second crystal unit whose nominal oscillation frequency is higher than that of the first crystal oscillator. In a method of operation of the timepiece device, the oscillation frequency of the second crystal oscillator is compensated against the temperature by the software inside the control unit. |
申请公布号 |
US2014269227(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
US201214117610 |
申请日期 |
2012.05.11 |
申请人 |
Bobev Borislav;Stoyanov Krassimire |
发明人 |
Bobev Borislav;Stoyanov Krassimire |
分类号 |
G04G7/00;G04G3/04 |
主分类号 |
G04G7/00 |
代理机构 |
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代理人 |
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主权项 |
1. A timepiece device, comprising:
a clock generator; and a control unit for timekeeping, which is synchronizable by the clock generator, wherein the clock generator includes at least two crystal oscillators built respectively by at least one crystal unit, wherein a first crystal oscillator with a first crystal unit and with a predetermined nominal oscillation frequency is suitable for use as the clock generator of the control unit during a vehicle standby mode, and the oscillation frequency of the first crystal oscillator is at least temporarily measured and adjustable by a second crystal oscillator with a second crystal unit whose nominal oscillation frequency is higher than that of the first crystal oscillator. |
地址 |
Sofia BG |