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公开(公告)号：EP2493078A1
公开(公告)日：2012-08-29
申请号：EP12156794.5
申请日：2012-02-24
发明人： Akaike, Kazuo , Kobayashi, Kaoru
CPC分类号： H03L1/00
摘要： To provide an oscillation device capable of obtaining a stable oscillation frequency by compensating for a change in oscillation frequency caused with an elapse of operating time of a quartz-crystal oscillator. A difference value ΔF between a frequency difference between first and second quartz-crystal oscillators after a predetermined period of time has elapsed from a reference time and a frequency difference between the first and second quartz-crystal oscillators at the reference time (specifically, a difference value ΔF between an amount of change in frequency in the first quartz-crystal oscillator from the reference time and an amount of change in frequency in the second quartz-crystal oscillator from the reference time) is determined. Further, when a ratio between the amount of change in the frequency of the first quartz-crystal oscillator and the amount of change in the frequency of the second quartz-crystal oscillator with respect to the elapse of time from the reference time is treated as constant, the ratio is set to a compensation coefficient of aging, and a compensation value of the frequency of the quartz-crystal oscillator for producing an output of the oscillation device is obtained based on a value corresponding to the difference value ΔF and the compensation coefficient of aging.
摘要翻译： 本发明提供一种振荡装置，该振荡装置能够通过补偿因晶体振荡器的工作时间的经过而引起的振荡频率的变化来获得稳定的振荡频率。 从基准时间起经过了规定时间后的第1和第2水晶振子之间的频率差与基准时刻的第1和第2水晶振子之间的频率差（具体地说是差分 确定第一石英晶体振荡器中的频率相对于基准时间的变化量与第二石英晶体振荡器中的频率相对于基准时间的变化量之间的值ΔF）。 此外，当第一石英晶体振荡器的频率变化量与第二石英晶体振荡器的频率变化量之比相对于从基准时起经过的时间被视为恒定 ，该比率被设定为老化的补偿系数，并且基于与差值ΔF对应的值和用于产生振荡装置的输出的晶体振荡器的频率的补偿系数 老化。
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公开(公告)号：EP2482457A1
公开(公告)日：2012-08-01
申请号：EP12151090.3
申请日：2012-01-13
发明人： Akaike, Kazuo , Kobayashi, Kaoru
IPC分类号： H03L1/02
摘要： To perform, in an oscillation device compensating an output frequency based on a detection result of ambient temperature, temperature compensation of the output frequency with high accuracy. First and second quartz-crystal oscillators are structured by using a common quartz-crystal piece, and when oscillation outputs of first and second oscillation circuits respectively connected to these quartz-crystal oscillators are set to f1, f2, and oscillation frequencies of the first and the second oscillation circuits at a reference temperature are set to f1r, f2r, respectively, a frequency difference being a difference between a value corresponding to a difference between f1 and f1r and a value corresponding to a difference between f2 and f2r is treated as a temperature at that time. Further, based on the frequency difference, a frequency compensation value is determined through polynomial approximation.
摘要翻译： 要在基于环境温度的检测结果对输出频率进行补偿的振荡装置中执行，以高精度对输出频率进行温度补偿。 第一和第二石英晶体振荡器通过使用共同的石英晶片构成，并且当分别连接到这些石英晶体振荡器的第一和第二振荡电路的振荡输出被设置为f1，f2，以及第一和第二晶体振荡器的振荡频率 将参考温度下的第二振荡电路分别设定为f1r，f2r，将与f1和f1r之间的差相对应的值与f2和f2r之间的差对应的值之间的差作为温度 那时候。 此外，基于频率差，通过多项式近似来确定频率补偿值。
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公开(公告)号：EP2482457B1
公开(公告)日：2014-07-16
申请号：EP12151090.3
申请日：2012-01-13
发明人： Akaike, Kazuo , Kobayashi, Kaoru
IPC分类号： H03L1/02
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