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1. 发明专利

JP2007205854A Radio controlled clock 有权
标题翻译：无线电控制时钟
公开(公告)号：JP2007205854A
公开(公告)日：2007-08-16
申请号：JP2006024670
申请日：2006-02-01
申请人： Denso Corp , Jeco Co Ltd , ジェコー株式会社 , 株式会社デンソー
发明人： WATANABE TAKAMOTO , MASUDA SUMIO
IPC分类号： G04G5/00 , G04R20/00 , G04R20/12 , H03D1/22
CPC分类号： H04L27/066 , G04R20/12 , H04L2027/003 , H04L2027/0046
摘要： PROBLEM TO BE SOLVED: To provide a radio controlled clock which verifies time information reconstructed from standard radio wave in a short period of time. SOLUTION: Regarding the phase ϕ N, m of a carrier wave (carrier) of a long-wave standard radio wave calculated by a phase arithmetic circuit 23, based on the same phase component and orthogonal component generated by an orthogonal detection circuit 18, a dispersion arithmetic circuit 24 finds the dispersion from the reference phase varying at a time variation proportional to the error ε of a reference signal CK2. When the dispersion is an allowance or less, a time verifying circuit 26 determines that the receiving state (S/N) of the carrier is good, and determines the possibility of correction of the clock time according to the verifying result of the time information obtained from a single frame. When the dispersion is more than the allowance, the time verifying circuit 26 determines that the receiving state of the carrier is bad, and prohibits the correction of the clock time regardless of the verifying result of the time information. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种在短时间内验证从标准无线电波重建的时间信息的无线电控制时钟。解决方案：关于由相位运算电路23计算的长波标准无线电波的载波（载波）的相位φSB，N，m，基于相同的相位分量和正交通过正交检测电路18生成的分量，色散运算电路24根据与基准信号CK2的误差ε成比例的时间变化，求出基准相位的色散。当色散为允许值以下时，时间验证电路26确定载波的接收状态（S / N）良好，并且根据获得的时间信息的验证结果确定时钟时间的校正的可能性从一个框架。当色散大于允许时，时间验证电路26确定载波的接收状态不良，并且不管时间信息的验证结果如何，都禁止时钟时间的校正。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2005102129A Synchronous detection method and device 有权
标题翻译：同步检测方法和设备
公开(公告)号：JP2005102129A
公开(公告)日：2005-04-14
申请号：JP2004105391
申请日：2004-03-31
申请人： Denso Corp , 株式会社デンソー
发明人： WATANABE TAKAMOTO , NAKAMURA TETSUYA , MASUDA SUMIO
IPC分类号： H03D1/22 , H04L27/00 , H04L27/227 , H04L27/38
CPC分类号： H04L27/00
摘要： PROBLEM TO BE SOLVED: To improve device environment resistance (as well as reliability) and to attain miniaturization and cost reduction by comprising a synchronous detection circuit, without using analog circuits, such as operational amplifier and analog filter. SOLUTION: A synchronous detection circuit 10 is composed of a moving average circuit 24 for averaging an input signal Vs for each half period of a target carrier wave that becomes the target of synchronous detection, a first register 26 and a second register 28 for sequentially latching two moving average values DT (D1, D2) each found for each period of a sampling signal CKS by the moving average circuit 24, a subtraction circuit 30 for calculating deviations (D1-D2) of the moving average values DT (D1, D2) latched by the registers 26, 28, and a third register 32 for outputting a subtraction result of the subtraction circuit 30 as digital data Do1 representing the detected result. Furthermore, the moving average circuit 24 is composed of a time A/D converter (TAD) which uses a pulse delay circuit. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过包括同步检测电路，不使用运算放大器和模拟滤波器等模拟电路来提高器件环境电阻（以及可靠性）并实现小型化和降低成本。解决方案：同步检测电路10由用于对成为同步检测对象的目标载波的每个半周期的输入信号Vs进行平均的移动平均电路24，第一寄存器26和第二寄存器28 用于顺序地锁存由移动平均电路24针对采样信号CKS的每个周期找到的两个移动平均值DT（D1，D2）;减法电路30，用于计算移动平均值DT（D1 ，D2）和用于输出减法电路30的减法结果作为表示检测结果的数字数据Do1的第三寄存器32。此外，移动平均电路24由使用脉冲延迟电路的时间A / D转换器（TAD）构成。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004274157A Nonlinearity correction method and nonlinearity correction apparatus for a/d converted output data 有权
公开(公告)号：JP2004274157A
公开(公告)日：2004-09-30
申请号：JP2003058844
申请日：2003-03-05
申请人： Denso Corp , Jeco Co Ltd , ジェコー株式会社 , 株式会社デンソー
发明人： NAKAMURA MITSUO , WATANABE TAKAMOTO , MASUDA SUMIO
IPC分类号： H03M1/10 , G06F15/00 , H03M1/12 , H03M1/50
CPC分类号： H03M1/1042 , H03M1/50 , H03M1/502
摘要： PROBLEM TO BE SOLVED: To correct nonlinearity of A/D converted output characteristics into linearity at low cost without taking a temperature change into account. SOLUTION: Input voltage ranges Vmin-Vmax to an A/D converter (TAD) are equally bisected into an area 1 and an area 2 with a central voltage VC as a boundary and for each area, a TAD output characteristic curve is approximated with an approximate straight line resulting from connecting both ends of the TAD output characteristic curve. In the area 1, the TAD output characteristic curve is approximated into an approximate straight line L11 and in the area 2, it is approximated into an approximate straight line L12. A conversion expression for converting points on the approximate straight lines L11, L12 into points on ideal A/D straight lines is calculated for each area. Output data from the TAD are converted by thus obtained conversion expression, thereby realizing linear correction of TAD output characteristics with nonlinearity. Further, the conversion expression is reflected with the ambient temperature when the approximate straight lines L11, L12 are set. COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2007225571A Signal processing apparatus of fluxgate sensor 有权
标题翻译：通量传感器的信号处理装置
公开(公告)号：JP2007225571A
公开(公告)日：2007-09-06
申请号：JP2006050301
申请日：2006-02-27
申请人： Denso Corp , Jeco Co Ltd , ジェコー株式会社 , 株式会社デンソー
发明人： WATANABE TAKAMOTO , MASUDA SUMIO
IPC分类号： G01R33/04
CPC分类号： G01C17/30
摘要： PROBLEM TO BE SOLVED: To provide a signal processing apparatus for a fluxgate sensor capable of reducing the scale and cost of an apparatus to be constituted by using a fluxgate sensor, and increasing the accuracy and reliability of measurement.
SOLUTION: In an X-axis processing unit 25 and a Y-axis processing unit 27 for generating, from detected signals v
ox , v
oy outputted from the fluxgate sensor 10, amplitude data Ax, Ay representing their amplitudes by digital values, A/D conversion and demodulation of the detected signals v
ox , v
oy are performed with a quadrature detector 31 composed by using a time A/D conversion circuit (TAD) 40 by the use of a ring delay buffer. Consequently, the whole configuration of the X-axis unit 25 and the Y-axis unit 27 including the TAD 40 (quadrature detector 31) can be made up of digital circuits. As a result, the X-axis unit 25 and the Y-axis unit 27, and an azimuth calculation section 29 for performing various kinds of calculations using the amplitude data Ax, Ay being the processing results by the units can be integrated into one chip.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够降低通过使用磁通门传感器构成的装置的规模和成本的磁通门传感器的信号处理装置，并且提高测量的精度和可靠性。解决方案：在X轴处理单元25和Y轴处理单元27中，从用于从磁通门输出的检测信号v SB 传感器10，通过数字值表示它们的振幅的振幅数据Ax，Ay，检测信号v SB，o S / S S的A / D转换和解调用正交检波器 31通过使用环形延迟缓冲器使用时间A / D转换电路（TAD）40组成。因此，包括TAD 40（正交检测器31）的X轴单元25和Y轴单元27的整体结构可以由数字电路构成。其结果是，使用幅度数据Ax，Ay作为各单元的处理结果进行各种计算的X轴单元25和Y轴单元27以及方位计算部29可以集成在一个芯片。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2007225500A Distance measuring method and device 审中-公开
标题翻译：距离测量方法和设备
公开(公告)号：JP2007225500A
公开(公告)日：2007-09-06
申请号：JP2006048533
申请日：2006-02-24
申请人： Denso Corp , Jeco Co Ltd , ジェコー株式会社 , 株式会社デンソー
发明人： WATANABE TAKAMOTO , MASUDA SUMIO
IPC分类号： G01B17/00 , G01S11/14
CPC分类号： G01B17/00 , G01S11/14
摘要： PROBLEM TO BE SOLVED: To improve a distance resolution of distance measurement using a tone burst at low cost. SOLUTION: The tone burst (magnetic elastic wave) generated by performing amplitude modulation of a reference signal CK is propagated, and orthogonal detection of a detection signal D by the tone burst is performed by an orthogonal detector 25. In an amplitude computing unit 26, the amplitude A p of the detection signal D is calculated in each one cycle Tc of the reference signal CK from the results I p , Q p of the orthogonal detection. In a delay time detector 28, a delay time τ d from a generation timing T1 of the tone burst until a timing T2 when the amplitude A p exceeds an amplitude threshold is determined. In a phase computing unit 30, phases ϕ N, P of the detection signal D are determined from the results I p , Q p of the orthogonal detection. In a distance computing unit 31, a propagation distance z is determined by adding the first distance wherein one wavelength λc of the reference signal CK is used as the resolution based on the delay time τ d to the second distance wherein a distance shorter than the wavelength λc is expressed highly accurately by a continuous value based on the phases ϕ N, P . COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：以低成本提高使用音调脉冲串的距离测量的距离分辨率。解决方案：通过执行参考信号CK的幅度调制而产生的色调（磁弹性波）被传播，并且通过正交检测器25执行通过色调脉冲串的检测信号D的正交检测。在振幅计算从结果I P ，Q SB> P ，在参考信号CK的每个周期Tc中计算检测信号D的振幅A p / SB>正交检测。在延迟时间检测器28中，确定从音调脉冲串的产生定时T1直到振幅A p 超过幅度阈值的定时T2的延迟时间τSB> d 。在相位计算单元30中，根据检测信号D的结果I SB，P ，Q P 确定检测信号D的相位φSB，正交检测。在距离计算单元31中，通过将基准信号CK的一个波长λc用作基于延迟时间τ d 的分辨率的第一距离与第二距离相加来确定传播距离z 其中通过基于相位φ N，P 的连续值高精度地表示比波长λc短的距离。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006287726A Orthogonal detection method, device and radio-controlled timepiece 有权
标题翻译：正交检测方法，器件和无线电控制时序
公开(公告)号：JP2006287726A
公开(公告)日：2006-10-19
申请号：JP2005106465
申请日：2005-04-01
申请人： Denso Corp , Jeco Co Ltd , ジェコー株式会社 , 株式会社デンソー
发明人： WATANABE TAKAMOTO , MASUDA SUMIO
IPC分类号： H03D9/00 , G04G5/00 , G04R20/00 , G04R20/10 , H03D1/00 , H03D3/00
CPC分类号： H04L27/2331 , H04L27/0014 , H04L27/06 , H04L2027/003
摘要： PROBLEM TO BE SOLVED: To provide an orthogonal detection method and device suitable for miniaturization and improvement of environment-proof nature of a radio-controlled timepiece, and to provide the radio-controlled timepiece using the orthogonal detection device. SOLUTION: In the wave clock, an orthogonal detection circuit 18 is used as a detection circuit for extracting time information, superimposed on long-wave standard wave among received signals. The circuit 18 is constituted of a TAD 30 for receiving a reference signal CK1 set as a period of quarter of a conveyer wave to be detected and repeatedly averaging the received signals, four registers 32-38 for sequentially latching average values S to be calculated by each fixed period of the reference signal CK1 from the TAD 30, a adder-subtractor circuit 40 for adding, subtracting the average values S (R1-R4) latched by each of the registers 32-38 to calculate the in-phase component I and the orthogonal component Q of the conveyer wave and integration circuits 44, 46 for adding outputs I, Q from the adder-subtractor circuit 40 by N periods of the carrier wave. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种适用于小型化并且提高无人电时钟的防环境特性的正交检测方法和装置，并且提供使用正交检测装置的无线电监控钟表。解决方案：在波形时钟中，使用正交检测电路18作为用于提取叠加在接收信号中的长波标准波上的时间信息的检测电路。电路18由TAD30构成，用于接收被设置为要检测的传送波的四分之一的周期的参考信号CK1并重复对接收的信号进行平均;四个寄存器32-38，用于顺序地锁存要由来自TAD30的参考信号CK1的每个固定周期，加法器 - 减法器电路40，用于相加，减去每个寄存器32-38锁存的平均值S（R1-R4）以计算同相分量I和输出波的正交分量Q和用于将来自加法器 - 减法器电路40的输出I，Q加载载波的N个周期的积分电路44,46。版权所有（C）2007，JPO＆INPIT

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