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公开(公告)号：US07899633B2
公开(公告)日：2011-03-01
申请号：US12154941
申请日：2008-05-28
申请人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
发明人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
IPC分类号： G01N23/00
CPC分类号： G01N11/16 , G01G3/13 , G01N29/036 , G01N29/4472 , G01N2291/0256 , G01N2291/02809
摘要： An object of the present invention is to provide a sensing instrument capable to detect a substance existing in a very small quantity, such as environmental pollutants, instantly with a high degree of precision. As a specific means for solving the problem, a frequency signal from a crystal oscillator is sampled 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 taken out, and the variation of the frequency is detected by detecting the velocity of the rotational vector based on the respective sampling values. In addition to that, the measurement range of the variation of frequency can be widened by multiplying the above-described rotational vector by the reversely rotational vector corresponding to the velocity of the rotational vector.
摘要翻译： 本发明的目的是提供一种能够以高精度立即检测诸如环境污染物等非常少的物质的感测装置。 作为解决该问题的具体手段，使用来自基准时钟生成部的频率信号对来自晶体振荡器的频率信号进行采样，以数字信号输出采样值，利用数字信号进行频率正交检波 对应于输出信号的信号，取出以与频率信号的频率和用于正交检测的正弦波的频率之间的差相对应的频率旋转的旋转矢量，并且频率的变化由 基于相应的采样值来检测旋转矢量的速度。 除此之外，通过将上述旋转矢量乘以与旋转矢量的速度对应的反向旋转矢量，可以扩大频率变化的测量范围。
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公开(公告)号：US07825701B2
公开(公告)日：2010-11-02
申请号：US12225563
申请日：2007-03-14
CPC分类号： H03L7/18 , H03L7/085 , H03L7/091 , H03L7/10 , H03L7/185 , H03L7/187 , H03L2207/06 , H03L2207/12
摘要： An object of the present invention provides a frequency synthesizer having a broad frequency entraining range which can finely set a frequency over a broad band by a novel principle.As s specific solving means, a sinusoidal signal of an output frequency of a voltage-controlled oscillator is subjected to orthogonal detection, a vector rotating at the differential frequency (speed) between the output frequency and the frequency of the frequency signal used for the detection is created, and the frequency of a vector when the output frequency of the voltage-controlled oscillator is equal to a set value is calculated in advance. The voltage signal corresponding to the difference between the frequency of the vector and the calculated frequency is fed back to the voltage-controlled oscillator when the voltage-controlled oscillator is driven, and PLL is formed so that the difference is equal to zero. Accordingly, the output frequency of the voltage-controlled oscillator is adjusted to the set frequency when PLL is locked. After the difference between both the frequencies is increased after PLL is locked, the set value is integrated by the integrating circuit portion and added to the control voltage.
摘要翻译： 本发明的目的是提供一种频率合成器，其具有宽的频率夹带范围，可通过新的原理在宽带上精细地设定频率。 作为具体的解决方法，对压控振荡器的输出频率的正弦信号进行正交检测，以用于检测的频率信号的输出频率和频率之间的差分频率（速度）旋转的矢量 并且预先计算当压控振荡器的输出频率等于设定值时的矢量频率。 当驱动压控振荡器时，与矢量频率和计算出的频率之间的差值相对应的电压信号被反馈到压控振荡器，并且形成PLL，使得差值等于零。 因此，当PLL被锁定时，压控振荡器的输出频率被调整到设定频率。 在PLL被锁定之后两个频率之间的差异增加之后，设定值被积分电路部分积分并加到控制电压上。
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公开(公告)号：US20090039973A1
公开(公告)日：2009-02-12
申请号：US12219452
申请日：2008-07-22
申请人： Yasuo Kitayama , Hiroki Kimura , Naoki Onishi , Nobuo Tsukamoto
发明人： Yasuo Kitayama , Hiroki Kimura , Naoki Onishi , Nobuo Tsukamoto
IPC分类号： H03B5/08
摘要： A VCO driving circuit and a frequency synthesizer wherein the impedance viewed from a VCO control terminal is reduced to prevent the VCO phase noise characteristic from degrading. A VCO driving circuit and a frequency synthesizer having the VCO driving circuit, which comprises a coarse adjustment DAC that receives a digital data, which has a coarse adjustment frequency, to output an analog signal; a fine adjustment DAC that receives a digital data, which has a fine adjustment frequency, to output an analog signal; a low response speed LPF5 that removes noise from the output signal from the coarse adjustment DAC and then provides the resultant signal as an input to a VCO control terminal; a high response speed LPF7 that converts the output signal from the fine adjustment DAC to a voltage, thereby smoothing the signal; a resistor that connects an input stage of the LPF5 to that of the LPF7; and a capacitor used for providing a capacitive coupling such that the output of the LPF7 is added to that of the LPF5.
摘要翻译： VCO驱动电路和频率合成器，其中从VCO控制端子观察的阻抗减小，以防止VCO相位噪声特性降级。 VCO驱动电路和具有VCO驱动电路的频率合成器，其包括具有粗略调整频率的接收数字数据的粗调DAC以输出模拟信号; 微调DAC，其接收具有微调频率的数字数据，以输出模拟信号; 低响应速度LPF5，其从粗调DAC输出信号中去除噪声，然后将所得到的信号作为输入提供给VCO控制端; 高响应速度LPF7，其将来自微调DAC的输出信号转换为电压，从而平滑信号; 将LPF5的输入级与LPF7的输入级连接的电阻; 以及用于提供电容耦合的电容器，使得LPF7的输出被添加到LPF5的输出。
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公开(公告)号：US5128981A
公开(公告)日：1992-07-07
申请号：US526246
申请日：1990-05-21
CPC分类号： H04W84/16 , H04M1/663 , H04M1/72566 , H04M1/733 , H04M1/6505 , H04M11/022 , H04M19/045 , H04M3/533
摘要： This invention proposes a radio communication system including a plurality of radio terminals, a relay apparatus (including a plurality of base stations and an exchange station) connected to each radio terminal so that the radio terminals can interchange information from each other, and a data processing unit connected to the relay apparatus, each radio terminal having a circuit for inputting and outputting a voice signal and a circuit for inputting and outputting data whereby it can communicate with another radio terminals or with the data processing unit through the relay apparatus. The radio terminal of this invention further has a clock, and a circuit for storing a schedule inputted by the user thereby to automatically select a receiving mode such as a ringing mode or a nonringing mode in accordance with the contents of the schedule, the present time and so on.
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公开(公告)号：US4250492A
公开(公告)日：1981-02-10
申请号：US840178
申请日：1977-10-07
申请人： Kazuo Yamakido , Nobuo Tsukamoto
发明人： Kazuo Yamakido , Nobuo Tsukamoto
CPC分类号： H03M1/0863 , H03M1/40 , H03M1/74
摘要： A non-uniform weighting circuitry which is effective for enhancing speed and accuracy in the operations of encoders and decoders comprises in a cascade connection a constant current switch, a variable attenuator, a polarity changing circuit and a uniform weighting circuit. An impedance converting means is provided to make at least one of input and output terminals of the variable attenuator to be of low impedance, whereby spike-like noises generated by a switching element constituting a part of the variable attenuator is reduced.
摘要翻译： 对于增强编码器和解码器的运算速度和精度有效的非均匀加权电路包括恒定电流开关，可变衰减器，极性改变电路和均匀加权电路的级联。 提供阻抗转换装置，使可变衰减器的输入和输出端中的至少一个具有低阻抗，由此构成可变衰减器的一部分的开关元件产生的尖峰状噪声减小。
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公开(公告)号：US07893774B2
公开(公告)日：2011-02-22
申请号：US12826236
申请日：2010-06-29
申请人： Yasuo Kitayama , Hiroki Kimura , Naoki Onishi , Nobuo Tsukamoto
发明人： Yasuo Kitayama , Hiroki Kimura , Naoki Onishi , Nobuo Tsukamoto
摘要： A VCO driving circuit and a frequency synthesizer wherein the impedance viewed from a VCO control terminal is reduced to prevent the VCO phase noise characteristic from degrading. A VCO driving circuit and a frequency synthesizer having the VCO driving circuit, which comprises a coarse adjustment DAC that receives a digital data, which has a coarse adjustment frequency, to output an analog signal; a fine adjustment DAC that receives a digital data, which has a fine adjustment frequency, to output an analog signal; a low response speed LPF5 that removes noise from the output signal from the coarse adjustment DAC and then provides the resultant signal as an input to a VCO control terminal; a high response speed LPF7 that converts the output signal from the fine adjustment DAC to a voltage, thereby smoothing the signal; a resistor that connects an input stage of the LPF5 to that of the LPF7; and a capacitor used for providing a capacitive coupling such that the output of the LPF7 is added to that of the LPF5.
摘要翻译： VCO驱动电路和频率合成器，其中从VCO控制端子观察的阻抗减小，以防止VCO相位噪声特性降级。 VCO驱动电路和具有VCO驱动电路的频率合成器，其包括具有粗略调整频率的接收数字数据的粗调DAC以输出模拟信号; 微调DAC，其接收具有微调频率的数字数据，以输出模拟信号; 低响应速度LPF5，其从粗调DAC输出信号中去除噪声，然后将所得到的信号作为输入提供给VCO控制端; 高响应速度LPF7，其将来自微调DAC的输出信号转换为电压，从而平滑信号; 将LPF5的输入级与LPF7的输入级连接的电阻; 以及用于提供电容耦合的电容器，使得LPF7的输出被添加到LPF5的输出。
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公开(公告)号：US07888974B2
公开(公告)日：2011-02-15
申请号：US12803294
申请日：2010-06-23
CPC分类号： H03L7/18 , H03L7/085 , H03L7/091 , H03L7/10 , H03L7/185 , H03L7/187 , H03L2207/06 , H03L2207/12
摘要： An object of the present invention provides a frequency synthesizer having a broad frequency entraining range which can finely set a frequency over a broad band by a novel principle.As a specific solving means, a sinusoidal signal of an output frequency of a voltage-controlled oscillator is subjected to orthogonal detection, a vector rotating at the differential frequency (speed) between the output frequency and the frequency of the frequency signal used for the detection is created, and the frequency of a vector when the output frequency of the voltage-controlled oscillator is equal to a set value is calculated in advance. The voltage signal corresponding to the difference between the frequency of the vector and the calculated frequency is fed back to the voltage-controlled oscillator when the voltage-controlled oscillator is driven, and PLL is formed so that the difference is equal to zero. Accordingly, the output frequency of the voltage-controlled oscillator is adjusted to the set frequency when PLL is locked. After the difference between both the frequencies is increased after PLL is locked, the set value is integrated by the integrating circuit portion and added to the control voltage.
摘要翻译： 本发明的一个目的是提供一种频率合成器，其具有宽的频率夹带范围，可通过新颖的原理在宽带上精细地设定频率。 作为具体的解决方案，对压控振荡器的输出频率的正弦信号进行正交检测，以用于检测的频率信号的输出频率和频率之间的差分频率（速度）旋转的矢量 并且预先计算当压控振荡器的输出频率等于设定值时的矢量频率。 当驱动压控振荡器时，与矢量频率和计算出的频率之间的差值相对应的电压信号被反馈到压控振荡器，并且形成PLL，使得差值等于零。 因此，当PLL被锁定时，压控振荡器的输出频率被调整到设定频率。 在PLL被锁定之后两个频率之间的差异增加之后，设定值被积分电路部分积分并加到控制电压上。
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公开(公告)号：US07603100B2
公开(公告)日：2009-10-13
申请号：US11230756
申请日：2005-09-19
申请人： Kazuo Akaike , Makoto Okamoto , Tsutomu Yamakawa , Minoru Fukuda , Kozo Ono , Nobuo Tsukamoto
发明人： Kazuo Akaike , Makoto Okamoto , Tsutomu Yamakawa , Minoru Fukuda , Kozo Ono , Nobuo Tsukamoto
IPC分类号： H04B1/16
CPC分类号： H04B1/30
摘要： A high-frequency wireless communication device is provided that is capable of enlarging the range of communication by enhancing reception sensitivity while avoiding mutual interference. The device comprises an antenna filter and a direct detection type reception mechanism connected to the antenna filter. A crystal filter is used as the antenna filter. A crystal chip constituting the crystal filter and an IC chip into which the reception mechanism is integrated are housed in a single modular container to configure a high-frequency wireless module.
摘要翻译： 提供一种高频无线通信装置，其能够通过在避免相互干扰的同时提高接收灵敏度来扩大通信范围。 该装置包括天线滤波器和连接到天线滤波器的直接检测型接收机构。 使用晶体滤波器作为天线滤波器。 构成晶体滤波器的晶体芯片和集成有接收机构的IC芯片被容纳在单个模块化容器中，以配置高频无线模块。
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公开(公告)号：US20080036573A1
公开(公告)日：2008-02-14
申请号：US10589933
申请日：2004-02-19
申请人： Nobuo Tsukamoto , Hideyuki Nebiya , Yukihisa Inoue
发明人： Nobuo Tsukamoto , Hideyuki Nebiya , Yukihisa Inoue
IPC分类号： H04Q5/22
CPC分类号： H04B1/707 , G06K7/0008 , G06K7/10019 , H04B5/0056 , H04B5/0062 , H04B5/02 , H04J13/00
摘要： If a total number of specific RF tags is too large, many RF tags respond at a time. Therefore a problem occurs that an interrogator cannot receive information from the RF tags. A first invention relates to an RF tag. The RF tag includes an interrogator signal receiving section for receiving an interrogator signal from an interrogator, a synchronizing signal generating section for generating a synchronizing signal from the received interrogator signal, a response information obtaining section for obtaining response information according to the interrogator signal, a spread-code modulating section for modulating the response information with a spreading code and obtaining the spread-code modulated response information, and a transmitting section for transmitting the response signal that contains the spread-code modulated response information in a data area at a random transmission interval in synchronism with the synchronizing signal.
摘要翻译： 如果特定RF标签的总数太大，则许多RF标签一次响应。 因此，询问器不能从RF标签接收信息。 第一发明涉及RF标签。 RF标签包括用于从询问器接收询问器信号的询问器信号接收部分，用于从接收到的询问器信号产生同步信号的同步信号产生部分，用于根据询问器信号获得响应信息的响应信息获取部分， 扩展码调制部分，用于利用扩展码调制响应信息并获得扩展码调制的响应信息;以及发送部分，用于以随机发送方式在数据区域中发送包含扩展码调制的响应信息的响应信号 间隔与同步信号同步。
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公开(公告)号：US20070120355A1
公开(公告)日：2007-05-31
申请号：US11602964
申请日：2006-11-22
申请人： Nobuo Tsukamoto
发明人： Nobuo Tsukamoto
IPC分类号： B42D1/00
摘要： The invention provides an instruction manual capable of storing documents such as guarantee certificates easily thereto. An instruction manual 1 of an electronic device having its rear portion 2 bound in a spreadable manner has a back cover 3 disposed on the outer side of the instruction manual and a paper portion 4 overlapped therewith which are bound together at their upper edges 5, lower edges 6 and side edges 9, thereby forming a document storage portion 7 between the back cover 3 and the paper portion 4. The back cover 3 has a document insertion slot 12. Thus, documents such as a guarantee certificate 11 can easily be stored in the document storage portion 7 through document insertion slots 12 without having to open the instruction manual 1.
摘要翻译： 本发明提供了能够容易地存储诸如保证证书等文件的指令手册。 电子设备的使用说明书1，其后部2以可展开的方式结合，具有设置在说明书外侧的后盖3和与其重叠的纸部分4，它们在其上边缘5，下部 边缘6和侧边缘9，从而在后盖3和纸部分4之间形成文件存储部分7.后盖3具有文件插入口12.因此，诸如担保证书11之类的文件可以容易地存储在 文档存储部分7通过文件插入槽12而不必打开说明书1。
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