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    • 1. 发明授权
    • Quartz-crystal controlled oscillator
    • 石英晶振控制振荡器
    • US08729978B2
    • 2014-05-20
    • US13562270
    • 2012-07-30
    • Kazuo AkaikeTsukasa KobataTomoya YoritaKaoru Kobayashi
    • Kazuo AkaikeTsukasa KobataTomoya YoritaKaoru Kobayashi
    • H03B5/36
    • H03L1/022H03L1/028
    • An atmosphere temperature at which a quartz-crystal oscillator and an oscillation circuit are placed is controlled in high accuracy, and an output frequency with high stability is obtained. If oscillation outputs of first and second quartz-crystal oscillators are set to f1 and f2, and oscillation frequencies of the oscillation outputs at a reference temperature are set to f1r and f2r, respectively, {(f2−f1)/f1}−{(f2r−f1r)/f1r} is calculated by a frequency difference detection unit. A digital value can be obtained by representing this value by 34-bit digital value, corresponding to a temperature. Therefore, this value is treated as a temperature detection value, a difference with a temperature set value is supplied to the loop filter, and the digital value therefrom is converted into a direct-current voltage to control a heater.
    • 高精度地控制放置石英振荡器和振荡电路的气氛温度,并且获得具有高稳定性的输出频率。 如果第一和第二石英晶体振荡器的振荡输出设定为f1和f2,并且将基准温度下的振荡输出的振荡频率分别设定为f1r和f2r,则{(f2-f1)/ f1} - {( f2r-f1r)/ f1r}由频率差检测单元计算。 通过对应于温度的34位数字值表示该值可以获得数字值。 因此,将该值作为温度检测值,将与温度设定值的差被提供给环路滤波器,并将其数字值转换为直流电压以控制加热器。
    • 2. 发明申请
    • OSCILLATION DEVICE
    • 振荡器件
    • US20120194277A1
    • 2012-08-02
    • US13353942
    • 2012-01-19
    • Kazuo AKAIKEKaoru Kobayashi
    • Kazuo AKAIKEKaoru Kobayashi
    • H03L9/00
    • H03L1/026H03L7/18
    • 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.
    • 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,以高精度进行输出频率的温度补偿。 第一和第二石英晶体振荡器通过使用共同的石英晶体片构成,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之间的差值相对应的值与f2和f2r之间的差对应的频率差作为温度 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。
    • 4. 发明授权
    • Oscillation device
    • 振荡装置
    • US08581670B2
    • 2013-11-12
    • US13353942
    • 2012-01-19
    • Kazuo AkaikeKaoru Kobayashi
    • Kazuo AkaikeKaoru Kobayashi
    • H03B5/36
    • H03L1/026H03L7/18
    • 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.
    • 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,以高精度进行输出频率的温度补偿。 第一和第二石英晶体振荡器通过使用共同的石英晶体片构成,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之间的差值相对应的值与f2和f2r之间的差对应的频率差作为温度 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。
    • 6. 发明授权
    • Signal processing device and wireless apparatus
    • 信号处理装置和无线装置
    • US08228970B2
    • 2012-07-24
    • US12213881
    • 2008-06-25
    • Kaoru KobayashiShigeru TakegishiNobuo Tsukamoto
    • Kaoru KobayashiShigeru TakegishiNobuo Tsukamoto
    • H04B1/00
    • H04B1/707
    • There is provided a signal processing device and a wireless apparatus capable of not erroneously determining polarity, appropriately performing a spread modulation process, a carrier modulation process, and reception data demodulation process, improving reception accuracy, and miniaturizing a circuit, even when IF carrier frequency shift occurs. The signal processing device and the wireless apparatus includes a spread modulation unit which includes a first differential encoding process section for performing a differential encoding process on a reception data, a differential encoding process section for performing a second differential encoding process on the output, and a spread modulation process section for performing a spread modulation process on the output using a spread code; a carrier modulation unit which quadrature-modulates a transmission data spread modulation signal and a continuous wave; and a reception data decoding unit which performs a correlation process twice and a delay detection process twice.
    • 提供了一种能够不错误地确定极性的信号处理装置和无线装置,适当地执行扩频调制处理,载波调制处理和接收数据解调处理,提高接收精度和使电路小型化,即使在IF载波频率 班次发生。 信号处理装置和无线装置包括扩展调制部,其包括对接收数据进行差分编码处理的第一差分编码处理部,对输出进行第二差分编码处理的差分编码处理部, 扩展调制处理部分,用于使用扩展码对输出进行扩展调制处理; 载波调制单元,对发送数据扩展调制信号和连续波进行正交调制; 以及接收数据解码单元,其执行两次相关处理和延迟检测处理两次。
    • 10. 发明申请
    • Wireless communication device
    • 无线通信设备
    • US20090279646A1
    • 2009-11-12
    • US12458678
    • 2009-07-20
    • Kaoru KobayashiShigeru Takegishi
    • Kaoru KobayashiShigeru Takegishi
    • H04L27/06
    • H04L27/0014H04B1/70752
    • A wireless communication device is provided to carry out correlation peak detection processing properly and efficiently in intermittent receiving unit. If a correlation peak is not detected in a first period in which a correlation peak detecting unit detects the correlation peak at a default frequency and a first frequency in a detecting period of a coarse frequency deviation detecting unit in the first period, a control unit makes the correlation peak detecting unit carry out the peak detection at the first frequency in a second period. If the correlation peak is detected in the correlation peak detecting unit and a second frequency is detected in a detecting period of a fine frequency deviation detecting unit in the first period, the control unit makes the correlation peak detecting unit carry out the peak detection at the first and second frequencies in a third period.
    • 提供一种无线通信装置,用于在间歇接收单元中适当且有效地执行相关峰值检测处理。 如果在第一期间中相关峰值检测部检测到粗略频率偏差检测部的检测期间的默认频率的相关峰值和第一频率的第一期间没有检测到相关峰值,则控制部 相关峰值检测单元在第二周期中以第一频率执行峰值检测。 如果在相关峰值检测单元中检测到相关峰值,并且在第一周期内在精细频率偏差检测单元的检测周期中检测到第二频率,则控制单元使相关峰值检测单元在 第一和第二频率在第三个时期。