公开(公告)号：US08958767B2

公开(公告)日：2015-02-17

申请号：US13422636

申请日：2012-03-16

申请人： Shoji Otaka ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

发明人： Shoji Otaka ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

IPC分类号： H04B1/06 ,  H04W52/02 ,  H03L7/08 ,  H03L7/197 ,  H04L25/02 ,  H04L27/38

CPC分类号： H04W52/0274 ,  H03L7/0802 ,  H03L7/1976 ,  H03L2207/50 ,  H04L25/0292 ,  H04L27/38 ,  H04L27/3818 ,  H04W52/0229 ,  Y02D70/142

摘要： A radio apparatus includes an antenna; an amplifier that amplifies a radio signal, received via the antenna; a first mixer that frequency converts the amplified radio signal to generate a first analog signal; a first A/D converter that converts the first analog signal to generate a first digital signal; a second mixer that frequency converts the amplified signal to generate a second analog signal; a second A/D converter means that converts the second analog signal to generate a second digital signal; a demodulator means that demodulates the first and second digital signals to generate a demodulated signal; a detector that detects a preamble from the first digital signal; and a control means that halts the second mixer and second A/D converter during the wait for the radio signal and that activates the second mixer and second A/D converter when the detector detects the preamble.

摘要翻译： 无线电设备包括天线; 放大器，放大经由天线接收的无线电信号; 第一混频器，其对放大的无线电信号进行频率转换以产生第一模拟信号; 第一A / D转换器，其转换第一模拟信号以产生第一数字信号; 第二混频器，其对放大的信号进行频率转换以产生第二模拟信号; 第二A / D转换器，用于转换第二模拟信号以产生第二数字信号; 解调器装置，解调第一和第二数字信号以产生解调信号; 检测器，其从所述第一数字信号检测前导码; 以及控制装置，其在等待无线电信号期间停止第二混频器和第二A / D转换器，并且当检测器检测到前导码时激活第二混频器和第二A / D转换器。

公开(公告)号：US20120214434A1

公开(公告)日：2012-08-23

申请号：US13421391

申请日：2012-03-15

申请人： Shoji OTAKA ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

发明人： Shoji OTAKA ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

IPC分类号： H04B7/12 ,  H04B7/00 ,  H04B7/08

CPC分类号： H03L7/18 ,  H03L7/0802 ,  H04L27/38 ,  H04L27/3818 ,  H04W52/0229 ,  H04W52/0274 ,  Y02D70/142

摘要： A radio apparatus includes a first receiver that is a processing unit for amplifying and frequency converting a radio signal received via an antenna, thereby outputting an IF signal; a detector unit for detecting a preamble signal from the IF signal; a second receiver for amplifying and quadrature demodulating the radio signal, thereby generating an I-signal and a Q-signal; a demodulator unit for demodulating the I-signal and Q-signal to generate a data signal; and a control unit for halting the operation of the first receiver and further activating the second receiver when the detector unit detects the preamble signal and for activating the first receiver and halting the operation of the second receiver when the demodulator unit completes the demodulation of the I-signal and Q-signal.

摘要翻译： 无线电设备包括：第一接收机，其是用于放大和频率转换经由天线接收的无线电信号的处理单元，从而输出IF信号; 检测单元，用于检测来自IF信号的前置信号; 第二接收机，用于放大和正交解调无线电信号，由此产生I信号和Q信号; 解调器单元，用于解调I信号和Q信号以产生数据信号; 以及控制单元，用于当所述检测器单元检测到所述前导信号并激活所述第一接收机并且当所述解调器单元完成所述I的解调时停止所述第二接收机的操作时，停止所述第一接收机的操作并进一步激活所述第二接收机 信号和Q信号。

公开(公告)号：US20120208483A1

公开(公告)日：2012-08-16

申请号：US13422636

申请日：2012-03-16

申请人： Shoji OTAKA ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

发明人： Shoji OTAKA ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

IPC分类号： H04B1/16

CPC分类号： H04W52/0274 ,  H03L7/0802 ,  H03L7/1976 ,  H03L2207/50 ,  H04L25/0292 ,  H04L27/38 ,  H04L27/3818 ,  H04W52/0229 ,  Y02D70/142

摘要： A radio apparatus includes an antenna; an amplifier that amplifies a radio signal, received via the antenna; a first mixer that frequency converts the amplified radio signal to generate a first analog signal; a first A/D converter that converts the first analog signal to generate a first digital signal; a second mixer that frequency converts the amplified signal to generate a second analog signal; a second A/D converter means that converts the second analog signal to generate a second digital signal; a demodulator means that demodulates the first and second digital signals to generate a demodulated signal; a detector that detects a preamble from the first digital signal; and a control means that halts the second mixer and second A/D converter during the wait for the radio signal and that activates the second mixer and second A/D converter when the detector detects the preamble.

摘要翻译： 无线电设备包括天线; 放大器，放大经由天线接收的无线电信号; 第一混频器，其对放大的无线电信号进行频率转换以产生第一模拟信号; 第一A / D转换器，其转换第一模拟信号以产生第一数字信号; 第二混频器，其对放大的信号进行频率转换以产生第二模拟信号; 第二A / D转换器，用于转换第二模拟信号以产生第二数字信号; 解调器装置，解调第一和第二数字信号以产生解调信号; 检测器，其从所述第一数字信号检测前导码; 以及控制装置，其在等待无线电信号期间停止第二混频器和第二A / D转换器，并且当检测器检测到前导码时激活第二混频器和第二A / D转换器。

公开(公告)号：US09281830B2

公开(公告)日：2016-03-08

申请号：US13421391

申请日：2012-03-15

申请人： Shoji Otaka ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

发明人： Shoji Otaka ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

IPC分类号： H04B7/12 ,  H03L7/18 ,  H03L7/08 ,  H04L27/38 ,  H04W52/02

CPC分类号： H03L7/18 ,  H03L7/0802 ,  H04L27/38 ,  H04L27/3818 ,  H04W52/0229 ,  H04W52/0274 ,  Y02D70/142

摘要： A radio apparatus includes a first receiver that is a processing unit for amplifying and frequency converting a radio signal received via an antenna, thereby outputting an IF signal; a detector unit for detecting a preamble signal from the IF signal; a second receiver for amplifying and quadrature demodulating the radio signal, thereby generating an I-signal and a Q-signal; a demodulator unit for demodulating the I-signal and Q-signal to generate a data signal; and a control unit for halting the operation of the first receiver and further activating the second receiver when the detector unit detects the preamble signal and for activating the first receiver and halting the operation of the second receiver when the demodulator unit completes the demodulation of the I-signal and Q-signal.

摘要翻译： 无线电设备包括：第一接收机，其是用于放大和频率转换经由天线接收的无线电信号的处理单元，从而输出IF信号; 检测单元，用于检测来自IF信号的前置信号; 第二接收机，用于放大和正交解调无线电信号，由此产生I信号和Q信号; 解调器单元，用于解调I信号和Q信号以产生数据信号; 以及控制单元，用于当所述检测器单元检测到所述前导码信号并激活所述第一接收机并停止所述第二接收机的操作时，当所述解调器单元完成所述I的解调时，停止所述第一接收机的操作并进一步激活所述第二接收机 信号和Q信号。

公开(公告)号：US20090302958A1

公开(公告)日：2009-12-10

申请号：US12408910

申请日：2009-03-23

申请人： Hiroki Sakurai ,  Osamu Watanabe ,  Shoji Otaka ,  Ryoichi Tachibana

发明人： Hiroki Sakurai ,  Osamu Watanabe ,  Shoji Otaka ,  Ryoichi Tachibana

IPC分类号： H03L7/099

CPC分类号： H03L7/0991 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1253 ,  H03B5/1265 ,  H03L7/087 ,  H03L7/18 ,  H03L2207/06

摘要： A digitally controlled oscillator includes a differential inductor including a positive terminal which outputs a positive-phase oscillation signal, a negative terminal which outputs a negative-phase oscillation signal, and a center tap, and including a first contact point in an arbitrary position between the positive terminal and the center tap, and a second contact point in a position corresponding to the first contact point between the negative terminal and the center tap, a first variable capacitor bank connected between the positive terminal and the negative terminal and including a plurality of first variable capacitors which switch capacitance between two values according to a first digital control code, and a second variable capacitor bank connected between the first contact point and the second contact point and including a plurality of second variable capacitors which switch capacitance between two values according to a second digital control code.

摘要翻译： 数字控制振荡器包括差分电感器，其包括输出正相振荡信号的正极端子，输出负相位振荡信号的负极端子和中心抽头，并且包括位于第一接触点之间的任意位置的第一接触点 正极端子和中心抽头，以及与负极端子和中心抽头之间的第一接触点对应的位置的第二接触点，连接在正极端子和负极端子之间的第一可变电容器组，并且包括多个第一 可变电容器，其根据第一数字控制代码在两个值之间切换电容;以及第二可变电容器组，其连接在所述第一接触点和所述第二接触点之间，并且包括多个第二可变电容器，所述第二可变电容器根据 第二个数字控制代码。

公开(公告)号：US07857100B2

公开(公告)日：2010-12-28

申请号：US11254471

申请日：2005-10-20

申请人： Hiroki Sakurai

发明人： Hiroki Sakurai

IPC分类号： F16N1/00 ,  F16H3/06

CPC分类号： F16H57/0497 ,  F16H25/2204 ,  F16H25/2418 ,  Y10T74/18744

摘要： The invention provides a ball screw lubricative sealing device having a simplified lubrication mechanism. It is attachable to an installed standard ball screw nut, capable of retaining larger amount of lubricant and long supply of lubricant to the contacting screw parts, and further includes a sealing function. It includes: generally cylindrical case members having attachment part to be attached to both ends of a screw nut, respectively; plural thin seal plates made of lubricating oil impregnated felt-like fiber material which is a three-dimensionally crosslinked plastic fiber and resilient rubber members, and having a hole each and fitted inside said case member in such a state that they circumferentially overlap with each other, the hole having a shape corresponding to a lateral cross-sectional shape of a screw groove of ball screw shaft; and a plastic wiper fitted with a space from the thin seal plates inside each of the case member.

公开(公告)号：US08937572B2

公开(公告)日：2015-01-20

申请号：US13544286

申请日：2012-07-09

申请人： Yuka Kobayashi ,  Hiroki Sakurai

发明人： Yuka Kobayashi ,  Hiroki Sakurai

IPC分类号： G01S13/34 ,  H03L7/08 ,  H03L7/093 ,  G01S13/58

CPC分类号： H03L7/093 ,  G01S13/343 ,  G01S13/584 ,  H03L2207/10

摘要： A signal generator of an embodiment has an oscillator to generate an oscillation signal controlled in frequency by an analog control signal; a digital phase detector; a first differentiator; and a comparator outputting digital frequency error information. The generator includes a second differentiator differentiating the frequency setting code to generate a gain value and an inverse number of the gain value; a first multiplier multiplying the digital frequency error information by the gain value, a low-pass filter removing a high frequency component in a multiplication result, and a second multiplier multiplying an output of the low-pass filter by the inverse number. The generator includes a D/A converter converting a multiplication result into analog frequency error information, and an integrator converting the analog frequency error information into analog phase error information to output the analog phase error information as the analog control signal.

摘要翻译： 实施例的信号发生器具有振荡器，以产生通过模拟控制信号频率控制的振荡信号; 数字相位检测器; 第一个区别; 以及输出数字频率误差信息的比较器。 发生器包括区分频率设定码以产生增益值和增益值的倒数的第二微分器; 将数字频率误差信息乘以增益值的第一乘法器，去除乘法结果中的高频分量的低通滤波器和将低通滤波器的输出乘以逆数的第二乘法器。 该发生器包括将乘法结果转换为模拟频率误差信息的D / A转换器，以及将模拟频率误差信息转换为模拟相位误差信息的积分器，以输出模拟相位误差信息作为模拟控制信号。

公开(公告)号：US20120069884A1

公开(公告)日：2012-03-22

申请号：US13071569

申请日：2011-03-25

申请人： Hiroki Sakurai

发明人： Hiroki Sakurai

IPC分类号： H04B17/00

CPC分类号： H03L7/091 ,  H03L2207/50

摘要： According to one embodiment, a digital phase detector includes a chain of delay devices configured to receive a reference signal through a first stage and delay the reference signal at each stage. The phase detector includes a sampler group configured to include a first sampler samples a first signal of N-phase input signals (N is an integer of at least 2) in accordance with the reference signal and a second sampler samples a second signal of N-phase input signals which lags behind the first signal in phase by 2π/N in accordance with an output signal from the first stage of the chain of delay devices. The phase detector includes a detection circuit configured to detect a time difference between an edge of the reference signal and an edge of the first signal based on sampled signals from the sampler group to convert the time difference into a phase difference.

摘要翻译： 根据一个实施例，数字相位检测器包括被配置为经由第一级接收参考信号并在每个级延迟参考信号的延迟器件链。 相位检测器包括采样器组，其被配置为包括第一采样器，以根据参考信号对N相输入信号（N为至少为2的整数）的第一信号进行采样，第二采样器采样N- 根据来自延迟装置链的第一级的输出信号，相位输入信号相位滞后于第一信号2和pgr / N。 相位检测器包括检测电路，其被配置为基于来自采样器组的采样信号来检测参考信号的边沿和第一信号的边沿之间的时间差，以将时间差转换为相位差。

公开(公告)号：US08049509B2

公开(公告)日：2011-11-01

申请号：US12406451

申请日：2009-03-18

申请人： Hiroki Sakurai ,  Tetsuro Itakura ,  Toshiyuki Umeda ,  Akiko Yamada ,  Nobuo Shibuya ,  Yoshinao Tatebayashi ,  Daisuke Kurose

发明人： Hiroki Sakurai ,  Tetsuro Itakura ,  Toshiyuki Umeda ,  Akiko Yamada ,  Nobuo Shibuya ,  Yoshinao Tatebayashi ,  Daisuke Kurose

IPC分类号： G01N27/416

CPC分类号： H01M10/482 ,  G01R31/362 ,  G01R31/3658 ,  H02J5/00 ,  H02J5/005 ,  H02J7/0021 ,  Y02T10/7055

摘要： A battery information acquiring apparatus includes a voltage acquiring unit which acquires an inter-terminal voltage of the battery cell; a battery information acquiring circuit which acquires battery information of the battery cell with the acquired voltage being supplied as a first power supply voltage and; a radio circuit which transmits a signal of the battery information to the management unit via the antenna with the acquired voltage being supplied as a second power supply voltage and; a rectification circuit which receives a radio signal from the management unit via the antenna, rectify the received radio signal and generate a DC voltage; and a control circuit which controls supply of the first and second power supply voltages to the battery information acquiring circuit and the radio circuit wherein the control circuit operates with the generated DC voltage being supplied as a third power supply voltage.

摘要翻译： 电池信息获取装置包括获取电池单元的端子间电压的电压获取单元; 电池信息获取电路，其获取所获取的电压作为第一电源电压的电池信息; 无线电电路，其中获取的电压被提供作为第二电源电压，经由天线将电池信息的信号发送到管理单元; 整流电路，经由天线从管理单元接收无线信号，对接收到的无线信号进行整流，生成直流电压; 以及控制电路，其控制对电池信息获取电路和无线电电路的第一和第二电源电压的供应，其中控制电路以产生的直流电压作为第三电源电压供电。

公开(公告)号：US20110227785A1

公开(公告)日：2011-09-22

申请号：US12880278

申请日：2010-09-13

申请人： Hiroki Sakurai

发明人： Hiroki Sakurai

IPC分类号： G01S13/34

CPC分类号： G01S13/345 ,  G01S7/35

摘要： According to one embodiment, an FMCW signal generation circuit includes a voltage-controlled oscillator, a digital phase detector, a differentiator, a comparator, a low-pass filter, an amplifier, a D/A converter, and an integrator. The voltage-controlled oscillator generates an FMCW signal including an oscillation frequency corresponding to a control signal. The digital phase detector detects phase information of the FMCW signal to generate a detection signal. The differentiator differentiates the detection signal once to generate a differential signal. The comparator compares the differential signal with a target frequency to generate an error signal. The low-pass filter suppresses a high-frequency component of the error signal to generate a filtered signal. The amplifier amplifies the filtered signal to generate an amplified signal. The D/A converter converts the amplified signal to analog to generate an analog signal. The integrator integrates the analog signal to generate the control signal.

摘要翻译： 根据一个实施例，FMCW信号产生电路包括压控振荡器，数字相位检测器，微分器，比较器，低通滤波器，放大器，D / A转换器和积分器。 压控振荡器产生包括对应于控制信号的振荡频率的FMCW信号。 数字相位检测器检测FMCW信号的相位信息以产生检测信号。 微分器一次区分检测信号以产生差分信号。 比较器将差分信号与目标频率进行比较，以产生误差信号。 低通滤波器抑制误差信号的高频分量以产生滤波信号。 放大器放大滤波信号以产生放大信号。 D / A转换器将放大的信号转换为模拟信号以产生模拟信号。 积分器将模拟信号进行积分以产生控制信号。