专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2006029870A Quartz oscillator and sensing device 审中-公开
标题翻译： QUARTZ振荡器和感应装置
公开(公告)号：JP2006029870A
公开(公告)日：2006-02-02
申请号：JP2004206428
申请日：2004-07-13
申请人： National Institute Of Advanced Industrial & Technology , Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社 , 独立行政法人産業技術総合研究所
发明人： KOYAMA MITSUAKI , FURUHATA TSUKASA , SHIOBARA TAKESHI , KUROSAWA SHIGERU , AIZAWA HIDENOBU
IPC分类号： G01N5/02 , H03B5/04 , H03B5/32
摘要： PROBLEM TO BE SOLVED: To eliminate the error of the change component of oscillation frequency of a quartz vibrator based on a change in the viscosity of a solution in a case that a plague marker substance or an environmental pollutant such as dioxins or the like is sensed using a change in the frequency of the quartz vibrator.
SOLUTION: The drive current flowing through the quartz vibrator is detected by a current detector and the current detection value is inputted to a differential amplifier through an amplifier and a rectifying circuit. The voltage corresponding to the current detection value is compared with set voltage V1 in the differential amplifier and the deviation component thereof is supplied to a regulator. The voltage corresponding to the deviation component is supplied to the inverter of an oscillation circuit from the regulator as power supply voltage to hold the drive current of the quartz vibrator to a set value.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了消除石斛振子的振荡频率的变化分量的误差，在瘟疫标记物质或诸如二恶英或环境污染物的环境污染物的情况下，基于溶液的粘度变化使用石英振动器的频率的变化来感测。解决方案：流过石英振子的驱动电流由电流检测器检测，电流检测值通过放大器和整流电路输入到差分放大器。将与电流检测值相对应的电压与差分放大器中的设定电压V1进行比较，并将其偏差分量提供给调节器。对应于偏差分量的电压从调节器作为电源电压提供给振荡电路的逆变器，以将石英振动器的驱动电流保持在设定值。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2013051676A Crystal oscillator 有权
标题翻译：水晶振荡器
公开(公告)号：JP2013051676A
公开(公告)日：2013-03-14
申请号：JP2012166021
申请日：2012-07-26
申请人： Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社
发明人： AKAIKE KAZUO , KOBAYASHI KAORU , FURUHATA TSUKASA , YODA TOMOYA
IPC分类号： H03B5/32 , H03L1/02
摘要： PROBLEM TO BE SOLVED: To provide a crystal oscillator which controls the atmospheric temperature at which the crystal oscillator and an oscillation circuit are placed, with high accuracy and obtains an output frequency with high stability in OCXO.SOLUTION: When oscillation outputs of first and second crystal oscillators 10, 20 are defined as f1, f2, and oscillation frequencies of the oscillation outputs at a reference temperature are defined as f1r, f2r, {(f2-f1)/f1}-{(f2r-f1r)/f1r} is calculated by a frequency difference detection part 3. The resulted value is represented as a digital value of 34 bits to obtain a digital value corresponding to the temperature. Therefore the value is handled to be a temperature detection value, a difference between the value and a temperature setting value is supplied to a loop filter 61, a digital value from the loop filter is converted into a direct current voltage, and a heater 5 is controlled. A setting frequency of OCXO is corrected based on the temeperature detection value, and thereby a fluctuation of the frequency caused by shifting of the atmospheric temperature from the reference temperature, is compensated.
摘要翻译：要解决的问题：提供一种高精度地控制晶体振荡器和振荡电路的大气温度的晶体振荡器，并且在OCXO中获得高稳定性的输出频率。解决方案：将第一和第二晶体振荡器10,20的振荡输出定义为f1，f2，将参考温度下的振荡输出的振荡频率定义为f1r，f2r，ä（f2-f1）/ f1 } -a（f2r-f1r）/ f1r}由频率差检测部分3计算。所得到的值被表示为34位的数字值，以获得对应于温度的数字值。因此，该值被处理为温度检测值，将值和温度设定值之间的差提供给环路滤波器61，将来自环路滤波器的数字值转换为直流电压，并且加热器5为受控。基于温度检测值校正OCXO的设定频率，从而补偿由于基准温度而使气氛温度偏移引起的频率波动。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2011077910A Frequency synthesizer 有权
标题翻译：频率合成器
公开(公告)号：JP2011077910A
公开(公告)日：2011-04-14
申请号：JP2009228328
申请日：2009-09-30
申请人： Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社
发明人： AKAIKE KAZUO , TSUKAMOTO NOBUO , FURUHATA TSUKASA
IPC分类号： H03L7/18
CPC分类号： H03L7/185 , H03L7/085 , H03L7/093
摘要： PROBLEM TO BE SOLVED: To provide a frequency synthesizer capable of improving phase noise. SOLUTION: A sinusoidal signal with a frequency set by a frequency setting section is output as a digital signal from a set signal output section, and the digital signal is D/A-converted. A difference between a sinusoidal signal with a frequency corresponding to the output frequency of a voltage controlled oscillating section and a sinusoidal signal output from a D/A converting section is amplified by a differential amplifier, and the amplified signal is input via an A/D converting section to a module for taking out a phase difference between both the sinusoidal signals. A voltage corresponding to a signal which is obtained by integrating the phase difference is input as a control voltage to the voltage controlled oscillator. Then, the gain of the differential amplifier is set larger than the maximum value of phase noise degradation of the A/D converting section, and thus, the phase noise degradation of the A/D converting section is canceled. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供能够改善相位噪声的频率合成器。解决方案：具有由频率设定部设定的频率的正弦信号作为来自设定信号输出部的数字信号输出，数字信号进行D / A转换。具有与压控振荡部分的输出频率相对应的频率的正弦信号和从D / A转换部分输出的正弦信号之间的差异由差分放大器放大，放大的信号通过A / D 转换部分到用于取出两个正弦信号之间的相位差的模块。将与通过积分相位差获得的信号相对应的电压作为控制电压输入到压控振荡器。然后，将差分放大器的增益设定为大于A / D转换部分的相位噪声劣化的最大值，从而消除A / D转换部分的相位噪声劣化。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2009077432A Frequency Synthesizer 有权
标题翻译：频率合成器
公开(公告)号：JP2009077432A
公开(公告)日：2009-04-09
申请号：JP2008310980
申请日：2008-12-05
申请人： Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社
发明人： FURUHATA TSUKASA
IPC分类号： H03L7/095 , H03L7/085
摘要： PROBLEM TO BE SOLVED: To provide a frequency synthesizer capable of preventing the occurrence of a frequency shift upon occurrence of changes in the level of an input to an analog/digital (A/D) converter, by preventing phase-locked loop (PLL) control from not operating properly. SOLUTION: The frequency synthesizer includes a carrier remove 16, an inverse rotational vector multiplier 17, a phase time difference detector 18, an adder 19, a phase difference accumulator 20, a loop filter 21, a parameter output part 25, an amplitude information detector 26, a filter 27, and a multiplier 28 configured by a field programmable gate array (FPGA); unlock detection means monitors a correction value in an AGC circuit, obtained on the basis of the amplitude information detected by the amplitude information detector 26. When the value lies within a proper range, a lock (synchronization) processing is performed under PLL control; whereas when the value is off the proper range, an unlock state in PLL control is detected. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种频率合成器，其能够防止在模拟/数字（A / D）转换器的输入电平发生变化时出现频移，通过防止锁相环（PLL）控制不正常运行。解决方案：频率合成器包括载波去除器16，反向旋转矢量乘法器17，相位时间差检测器18，加法器19，相位差累加器20，环路滤波器21，参数输出部分25，幅度信息检测器26，滤波器27和由现场可编程门阵列（FPGA）构成的乘法器28; 解锁检测装置监视基于由幅度信息检测器26检测的幅度信息获得的AGC电路中的校正值。当该值在适当范围内时，在PLL控制下执行锁定（同步）处理; 而当该值偏离正确的范围时，检测到PLL控制中的解锁状态。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2007295554A Digital processing apparatus 有权
标题翻译：数字处理设备
公开(公告)号：JP2007295554A
公开(公告)日：2007-11-08
申请号：JP2007095416
申请日：2007-03-30
申请人： Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社
发明人： FURUHATA TSUKASA , SHIOBARA TAKESHI
IPC分类号： H03M1/08
摘要： PROBLEM TO BE SOLVED: To reduce an occurrence of spurious output caused by malfunction of an A/D converter in a digital processing apparatus after converting an analog signal having a high periodicity to a digital signal by use of the A/D converter. SOLUTION: For example, in a frequency synthesizer of a particular type of system, an A/D converter is placed on the output side of a voltage controlled oscillator and it is arranged that an output signal of the A/D converter is applied to a device which performs a digital processing, and that a result of the digital processing is D/A converted and then applied back to the voltage controlled oscillator. In this case, it is arranged that noise generated with this bandwidth noise generator is added to an input signal of the analog/digital converter. The bandwidth noise is in a bandwidth that does not affect the digital signal processing performed in the foregoing device. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了减少在数字处理装置中通过使用A / D转换器将具有高周期的模拟信号转换为数字信号之后的A / D转换器的故障引起的寄生输出的发生。解决方案：例如，在特定类型的系统的频率合成器中，A / D转换器被放置在压控振荡器的输出侧，并且将A / D转换器的输出信号设置为应用于执行数字处理的设备，并且数字处理的结果被D / A转换，然后被应用回压控振荡器。在这种情况下，将该带宽噪声发生器产生的噪声加到模拟/数字转换器的输入信号中。带宽噪声处于不影响在前述设备中执行的数字信号处理的带宽。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2013098872A Oscillator 有权
标题翻译：振荡器
公开(公告)号：JP2013098872A
公开(公告)日：2013-05-20
申请号：JP2011241635
申请日：2011-11-02
申请人： Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社
发明人： AKAIKE KAZUO , FURUHATA TSUKASA , SATO SHINICHI , KOYAMA MITSUAKI
IPC分类号： H03B1/00 , H03L7/08
CPC分类号： H03L7/18
摘要： PROBLEM TO BE SOLVED: To provide an oscillator, enabling an easy change of a variable width of a frequency and frequency adjustment with high accuracy.SOLUTION: A first register 3 outputs a digital value associated with a nominal frequency. A second register 41 outputs a frequency adjustment amount represented by a frequency ratio to the nominal frequency. Meanwhile, a gain is determined in a manner to associate the variable range (full range) of the digital value with the variable width of the frequency represented by a frequency ratio. By multiplying the gain by the digital value from the second register 41, and then by adding the multiplication value to the digital value associated with the nominal frequency, a frequency setting signal is obtained.
摘要翻译：要解决的问题：提供一种振荡器，能够以高精度容易地改变频率和频率调节的可变宽度。解决方案：第一个寄存器3输出与标称频率相关联的数字值。第二寄存器41将由频率比表示的频率调整量输出到标称频率。同时，以使数字值的可变范围（全范围）与由频率比表示的频率的可变宽度相关联的方式确定增益。通过将增益乘以来自第二寄存器41的数字值，然后通过将乘法值与额定频率相关联的数字值相加，获得频率设置信号。版权所有（C）2013，JPO＆INPIT

7. 发明专利

JP2012217170A Signal generator 有权
标题翻译：信号发生器
公开(公告)号：JP2012217170A
公开(公告)日：2012-11-08
申请号：JP2012081959
申请日：2012-03-30
申请人： Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社
发明人： AKAIKE KAZUO , FURUHATA TSUKASA
IPC分类号： H03K7/08 , H03K4/02 , H03K4/06
CPC分类号： H03K4/026
摘要： PROBLEM TO BE SOLVED: To provide a signal generator, outputting an analog frequency signal based on a digital value corresponding to a preset frequency, capable of achieving good noise characteristics, elimination of a ROM table corresponding to waveform data and a simple configuration.SOLUTION: A digital signal with a digital value corresponding to a preset frequency is integrated to generate a sawtooth-like waveform and, based on the waveform, a triangular waveform is generated. Next, the waveform output is differentiated, which is then subjected to D-A conversion and integration. For the integrated output, for example, a comparator that takes an intermediate voltage of the triangular waveform as a threshold value is used to obtain a frequency signal of a target frequency from the comparator.
摘要翻译：要解决的问题：为了提供信号发生器，基于与预设频率相对应的数字值输出模拟频率信号，能够实现良好的噪声特性，消除与波形数据相对应的ROM表格和简单配置。解决方案：将具有对应于预设频率的数字值的数字信号集成为产生锯齿形波形，并且基于波形产生三角形波形。接下来，波形输出被微分，然后进行D-A转换和积分。对于集成输出，例如，使用将三角波形的中间电压作为阈值的比较器用于从比较器获得目标频率的频率信号。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2010088056A Frequency synthesizer 有权
标题翻译：频率合成器
公开(公告)号：JP2010088056A
公开(公告)日：2010-04-15
申请号：JP2008257768
申请日：2008-10-02
申请人： Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社
发明人： ONISHI NAOKI , FURUHATA TSUKASA
IPC分类号： H03L7/18 , H03L7/095
CPC分类号： H03L7/18 , H03L7/091 , H03L7/095 , H03L7/10
摘要： PROBLEM TO BE SOLVED: To provide a technique capable of determining a state in a moment or in advance in which PLL control does not normally operate in a frequency synthesizer that performs division, A/D conversion, quadrature detection of a frequency signal from a voltage controlled oscillation section, extracts a rotation vector rotating at a different frequency between the frequency signal used for detection and the A/D-converted frequency signal, and integrates the difference between the frequency of the rotation vector and the set frequency to make it a control voltage of the voltage controlled oscillation section. SOLUTION: To monitor a control voltage input to a voltage controlled oscillation section and to determine whether a level of the monitored control voltage is beyond a predetermined setting range or not, output an unlock detection signal. Further consideration of a decision result whether a length (scalar quantity) of a decelerated rotation vector or a correction signal for gain control is beyond a predetermined range or not is made in a configuration in which the rotation vector is decelerated by being multiplied by an inverse rotation vector that inverse-rotates at a frequency determined at minimum interval according to a setting frequency. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在执行分频，A / D转换，频率信号的正交检波的PLL控制不正常工作的时刻或者事先确定状态的技术从压控振荡部分提取在用于检测的频率信号与A / D转换频率信号之间以不同频率旋转的旋转矢量，并且将旋转矢量的频率和设定频率之间的差积分成它是受电压控制的振荡部分的控制电压。解决方案：为了监测输入到电压控制的振荡部分的控制电压，并且确定所监测的控制电压的电平是否超出预定的设定范围，输出解锁检测信号。进一步考虑减速旋转矢量的长度（标量）或者用于增益控制的校正信号是否超出预定范围的判定结果是在旋转矢量被乘以反相旋转矢量，以根据设定频率以最小间隔确定的频率进行反转。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2009219041A Frequency synthesizer 有权
标题翻译：频率合成器
公开(公告)号：JP2009219041A
公开(公告)日：2009-09-24
申请号：JP2008063095
申请日：2008-03-12
申请人： Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社
发明人： FURUHATA TSUKASA
IPC分类号： H03L7/085 , H03L7/093 , H03L7/18
CPC分类号： H03L7/189 , H03L7/085 , H03L7/087 , H03L7/093 , H03L7/10
摘要： PROBLEM TO BE SOLVED: To provide a frequency synthesizer in which a frequency can be finely set over a wide band and which has a wide frequency pull-in range. SOLUTION: A PLL performs the quadrature detection of a sinusoidal signal having an output frequency of a voltage-controlled oscillation unit and uses a vector which rotates at a difference frequency (speed) between the output frequency and a frequency of a frequency signal used for the detection. A frequency pull-in means integrates a first constant for increasing the output frequency as a voltage for pull-in when a control voltage from the PLL to the voltage-controlled oscillation unit is larger than a set range set in advance and integrates a second constant for decreasing the output frequency as the voltage for pull-in when the control voltage is smaller than the set range. An addition means adds the control voltage from the PLL and the voltage for pull-in from the frequency pull-in means and outputs the addition result to the voltage-controlled oscillation unit. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种频率合成器，其中可以在宽频带上精细地设置频率并且具有宽的频率拉入范围。解决方案：PLL执行具有电压控制振荡单元的输出频率的正弦信号的正交检测，并使用以频率（频率）与频率信号的频率之间的差频（速度）旋转的矢量用于检测。当从PLL到压控振荡单元的控制电压大于预先设定的设定范围时，频率插入装置将用于增加输出频率的第一常数作为用于拉入的电压积分，并且积分第二常数用于当控制电压小于设定范围时，将输出频率降低为用于拉入的电压。加法装置将来自PLL的控制电压和来自频率引入装置的拉入电压相加，并将相加结果输出到电压控制振荡单元。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2008249729A Device for measuring frequency 审中-公开
标题翻译：用于测量频率的装置
公开(公告)号：JP2008249729A
公开(公告)日：2008-10-16
申请号：JP2008176520
申请日：2008-07-07
申请人： Dsp Technology Associates Inc , Nippon Dempa Kogyo Co Ltd , 日本電波工業株式会社 , 有限会社ディーエスピー技研
发明人： TSUKAMOTO NOBUO , AKAIKE KAZUO , FURUHATA TSUKASA
IPC分类号： G01N5/02
CPC分类号： G01N11/16 , G01G3/13 , G01N29/036 , G01N29/4472 , G01N2291/0256 , G01N2291/02809
摘要： PROBLEM TO BE SOLVED: To detect the oscillation frequency of a crystal oscillator accurately and instantaneously. SOLUTION: A frequency signal from the crystal oscillator is sampled by using a frequency signal from a reference clock generating part; the sampling value is outputted in a digital signal; quadrature detection is conducted with the digital signal for a frequency signal, corresponding to the output signal, the rotational vector rotating at a frequency, corresponding to the difference between the frequency of the frequency signal and the frequency of a sinusoidal wave used for the quadrature detection is extracted; and variations in the frequency is detected by detecting the velocity of the rotational vector, based on the respective sampling values. Additionally, the measurement range of the variation of frequency can be widened, by multiplying the rotational vector by the reverse rotational vector, corresponding to the velocity of the rotation vector. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：准确，瞬时地检测晶体振荡器的振荡频率。解决方案：通过使用来自参考时钟产生部分的频率信号对来自晶体振荡器的频率信号进行采样; 采样值以数字信号输出; 对应于输出信号的频率信号的数字信号进行正交检测，对应于频率信号的频率与用于正交检测的正弦波的频率之间的频率旋转的旋转矢量被提取; 并且通过基于相应的采样值检测旋转矢量的速度来检测频率的变化。此外，可以通过将旋转矢量乘以与旋转矢量的速度相对应的反向旋转矢量来扩大频率变化的测量范围。版权所有（C）2009，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式