发明授权
- 专利标题： Characteristic automatic compensating apparatus, characteristic automatic compensating method, characteristic automatic compensating program of oscillator and positioning signal receiver
- 专利标题（中）： 特征自动补偿装置，特征自动补偿方法，振荡器和定位信号接收机的特征自动补偿程序
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申请号： US10547058申请日： 2004-02-19
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公开(公告)号： US07548130B2公开(公告)日： 2009-06-16
- 发明人: Michio Kobayashi
- 申请人： Michio Kobayashi
- 申请人地址： JP
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JP
- 代理机构： Harness, Dickey & Pierce, P.L.C.
- 国际申请： PCT/JP2004/001872 WO 20040219
- 国际公布： WO2004/084403 WO 20040930
- 主分类号： H03L1/02
- IPC分类号： H03L1/02
摘要：
A characteristic automatic compensating apparatus of an oscillator includes oscillating means, temperature detecting means, characteristic determining means for measuring a drift value of an oscillating frequency while changing the temperature and for determining a coefficient of an approximated equation representing temperature and the drift value, storing means for storing the coefficient, drift value predicting means, and characteristic updating means for updating the coefficient by the measured drift value of the oscillating frequency and the temperature, wherein the characteristic determining means represents the approximated equation representing the characteristic of the temperature detected by the temperature detecting means and the drift value of the oscillating frequency of the oscillating means by a polynomial.
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