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    3.
    发明专利
    未知

    公开(公告)号：DE10037926B4

    公开(公告)日：2005-06-16

    申请号：DE10037926

    申请日：2000-08-03

    Applicant: ADVANTEST CORP

    Inventor： NAKAYAMA YOSHIKAZU ,  ARAKAWA NORIO

    IPC: G01R27/28

    Abstract: A network analyzer includes a raw data measuring portion for measuring an S parameter of a device under test, a measuring-system error-factor measuring portion for obtaining measuring-system error factors occurring in the measurement of the device under test, a parameter conversion factor calculating portion for obtaining a parameter conversion factor indicative of the relationship between impedance and measuring system error-factor-free data obtained by eliminating measuring-system error factors from the S parameter, an extended error-factor calculating portion for obtaining extended error factors by combining the measurement-system error factors and the parameter conversion factor, and a device-under-test calculating portion for obtaining the impedance from the S parameter and the extended error factors. Accordingly, the need for fixtures is eliminated and, further, the extended error factors are obtained in advance. Therefore, operation of the network analyzer can be simplified and the calculating speeds increased.

    4.
    发明专利
    未知

    公开(公告)号：DE3688279D1

    公开(公告)日：1993-05-19

    申请号：DE3688279

    申请日：1986-12-10

    Applicant: ADVANTEST CORP

    Inventor： YAMAGUCHI TAKAHIRO ,  ARAKAWA NORIO ,  OHGAMI TAKAYUKI ,  KOSAWA HIROMI

    IPC: H03M1/04 ,  H03M1/00 ,  H03M1/20

    Abstract: In an AD converting device in which an analog random noise is added by analog adding means (12) to an analog signal (X) to be converted and the added output is converted by an AD converter (15) to a digital signal, an analog offset voltage (0), whose level variation is around (1 to 7) times the quantization step size A of the AD converter, is generated by offset generating means (21) and is also applied to the analog adding means. A random noise waveform is stored in a memory (13), the read-out output of which is converted by DA converting means (14) to an analog random noise having an amplitude about (1 /2 to 6) A, and the converted output is used as the above-said random noise. A digital value of the offset voltage and the digital noise waveform are subtracted from the output of the AD converter, as required.

    5.
    发明专利
    未知

    公开(公告)号：DE10082824T1

    公开(公告)日：2002-02-28

    申请号：DE10082824

    申请日：2000-08-14

    Applicant: ADVANTEST CORP

    Inventor： UMEZU SATOSHI ,  MIYAJIMA JUN ,  YAMGUCHI TAKAHIRO ,  ARAKAWA NORIO

    IPC: G01R31/28 ,  G01R31/319 ,  H04L12/24 ,  H04Q9/00 ,  H04Q9/04 ,  G08C19/00

    Abstract: A measuring device, a measuring device controller, a measuring system, a measurement process performing method and a recording medium thereof which can easily and adequately perform a measurement process are provided. The present invention is constructed to include a program receiving unit 110 for receiving a control program, which comprises contents prescribing a measurement process, from said network; a memorizing unit 120 for memorizing the control program; an initiating instruction receiving unit 130 for receiving a program initiating instruction of the control program from the network; and a measurement control unit 156 for letting a measuring unit 160 perform the measurement process based on the control program memorized by the memorizing unit 120 in case the initiating instruction receiving unit 130 receives the program initiating instruction.

    8.
    发明专利
    未知

    公开(公告)号：DE3688279T2

    公开(公告)日：1993-11-18

    申请号：DE3688279

    申请日：1986-12-10

    Applicant: ADVANTEST CORP

    Inventor： YAMAGUCHI TAKAHIRO ,  ARAKAWA NORIO ,  OHGAMI TAKAYUKI ,  KOSAWA HIROMI

    IPC: H03M1/04 ,  H03M1/00 ,  H03M1/20

    Abstract: In an AD converting device in which an analog random noise is added by analog adding means (12) to an analog signal (X) to be converted and the added output is converted by an AD converter (15) to a digital signal, an analog offset voltage (0), whose level variation is around (1 to 7) times the quantization step size A of the AD converter, is generated by offset generating means (21) and is also applied to the analog adding means. A random noise waveform is stored in a memory (13), the read-out output of which is converted by DA converting means (14) to an analog random noise having an amplitude about (1 /2 to 6) A, and the converted output is used as the above-said random noise. A digital value of the offset voltage and the digital noise waveform are subtracted from the output of the AD converter, as required.

    Electric circuit and testing device
    9.
    发明专利
    Electric circuit and testing device 审中-公开
    电气电路和测试装置

    公开(公告)号：JP2011106835A

    公开(公告)日：2011-06-02

    申请号：JP2009259296

    申请日：2009-11-12

    Applicant: Advantest Corp ,  株式会社アドバンテスト

    Inventor： ARAKAWA NORIO ,  ENDO YUKI

    IPC: G01R31/316

    Abstract: PROBLEM TO BE SOLVED: To reduce the scale of a control circuit as a whole for controlling a plurality of operational circuits.
    SOLUTION: The electric circuit includes a plurality of control circuits, each of which outputs a control signal; a plurality of operational circuits which operate, according to a control signal input thereto; and a plurality of intermediate circuits which are provided, in a one-to-one correspondence to the plurality of control circuits, receive control signals from the plurality of control circuits and select a control signal to be input to a corresponding operational circuit among the plurality of operational circuits. The number of the plurality of control circuits is smaller than the number of the plurality of the operational circuits.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：为了减少用于控制多个操作电路的整体的控制电路的规模。 电路包括多个控制电路，每个控制电路输出控制信号; 多个操作电路，根据输入的控制信号进行操作; 以及与多个控制电路一一对应地设置的多个中间电路，从多个控制电路接收控制信号，并选择要输入到多个控制电路中的相应运行电路的控制信号 的操作电路。 多个控制电路的数量小于多个操作电路的数量。 版权所有（C）2011，JPO＆INPIT

    Power unit, testing device, and power supply method
    10.
    发明专利
    Power unit, testing device, and power supply method 审中-公开
    电源单元，测试设备和电源方法

    公开(公告)号：JP2011065286A

    公开(公告)日：2011-03-31

    申请号：JP2009213706

    申请日：2009-09-15

    Applicant: Advantest Corp ,  株式会社アドバンテスト

    Inventor： YAMAMOTO KAZUNARI ,  ARAKAWA NORIO ,  MINEGISHI TOSHIYUKI

    IPC: G06F1/28 ,  H02J1/00

    Abstract: PROBLEM TO BE SOLVED: To control power supply so that the maximum output power of a power source can be decreased.
    SOLUTION: The power unit is provided including: a power source part for supplying a power to each of a plurality of devices; a detection part for detecting the load state of the power source part; and a control part for adjusting a power to be supplied to each of the plurality of power source parts on the basis of the load state of the power source part. In supplying a power to a plurality of devices, the control part may shift to a state in which a power is supplied to each other of the plurality of devices, while a power to be supplied to each of the plurality of devices is adjusted on the basis of the load state of the power source part.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：为了控制电源，可以降低电源的最大输出功率。 解决方案：提供功率单元，包括：用于向多个设备中的每一个提供电力的电源部分; 用于检测电源部分的负载状态的检测部分; 以及控制部，其基于电源部的负载状态来调整向多个电源部中的每一个供给的电力。 在向多个设备供电时，控制部分可以转换到多个设备中的彼此供电的状态，同时在多个设备中向每个设备提供的功率被调整 电源部分的负载状态的基础。 版权所有（C）2011，JPO＆INPIT

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