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    • 2. 发明申请
    • METHOD AND DEVICE FOR CALIBRATING AN AUTOMATED TEST EQUIPMENT
    • 用于校准自动测试设备的方法和设备
    • WO2017144087A1
    • 2017-08-31
    • PCT/EP2016/053796
    • 2016-02-23
    • ADVANTEST CORPORATIONROTH, Bernhard
    • ROTH, Bernhard
    • G01R31/319G01R31/3193G01R35/00
    • G01R31/3191G01R31/31937G01R35/005
    • The invention concerns devices and methods for calibrating an Automated Test Equipment (102) for automated testing of a Device Under Test. According to an aspect of the invention, the method comprises providing at least two digital channel signals (501, 502) by at least two different channels (601, 602) of the Automated Test Equipment (102), wherein the digital channel signals (501, 502) comprise, except for a possible time shift relative to each other, an identical or a complementary pattern with respect to their edges (301, 302). The method further comprises sum-combining or difference-combining the at least two digital channel signals (501, 502) in order to obtain a combined residual signal (607). The step of combining is performed such that the combining provides a combined residual signal (607) without a time-variant component (609) if the at least two digital channel signals (501, 502) have a predetermined time shift (τ) or a predetermined phase shift (Δρ) relative to each other, or such that the combined residual signal (607) comprises a time variant component (609) if the two digital channel signals (501, 502) have a time shift different from the predetermined time shift or a phase shift different from the predetermined phase shift. The method further comprises measuring the combined residual signal (607) and determining a relative timing of the at least two digital channel signals (501, 502) relative to each other on the basis of the measurement of the combined residual signal (607).
    • 本发明涉及用于校准自动测试设备(102)的设备和方法,用于自动测试被测设备。 根据本发明的一个方面,该方法包括由自动测试设备(102)的至少两个不同信道(601,602)提供至少两个数字信道信号(501,502),其中数字信道信号(501,502) ,502)除了相对于彼此可能的时间偏移之外还包括关于它们的边缘(301,302)的相同或互补的图案。 该方法还包括对至少两个数字声道信号(501,502)进行和组合或差分组合以获得组合的残余信号(607)。 如果至少两个数字频道信号(501,502)具有预定的时间偏移(τ)或者具有预定的时间偏移(τ),则执行组合的步骤,使得组合提供没有时间变量分量(609)的组合残差信号(607) 如果两个数字频道信号(501,502)具有与预定时间偏移不同的时间偏移,则组合的剩余信号(607)包括时间变量分量(609) 或与预定相移不同的相移。 该方法进一步包括测量组合的残差信号(607)并且基于组合的残差信号(607)的测量来确定至少两个数字信道信号(501,502)相对于彼此的相对定时。 / p>
    • 4. 发明申请
    • COMMUNICATION CIRCUIT FOR A BI-DIRECTONAL DATA TRANSMISSION
    • 用于双向数据传输的通信电路
    • WO2006117255A1
    • 2006-11-09
    • PCT/EP2006/060395
    • 2006-03-02
    • AGILENT TECHNOLOGIES, INCROTH, Bernhard
    • ROTH, Bernhard
    • H04L5/14
    • H04L5/1423
    • The invention relates to a communication circuit (M11) for providing a bi-directional data transmission over a signal line, thereby receiving a first digital data stream (DD1) and transmitting a corresponding first signal (S1) into a near end of a signal line (TL) to be transmitted to a remote device, the remote device being connected to a far end of the signal line (TL), receiving a second signal (S2) at the near end of the signal line (TL) from the remote device and deriving a second digital data stream (RC1) from this signal, comprising a replica generator (RG) for providing, in response to the first digital data stream (DD1) or a signal derived therefrom, a replica signal (S1b), and an extraction circuit (EC) for extracting the second digital data stream (RC1) from the second signal (S2) in response to the replica signal (S1b) and a comparator signal (S2b) deduced from the near end of the signal line (TL). The invention further relates to an automatic test equipment comprising a plurality of communication circuits each providing a bi-directional data transmission.
    • 本发明涉及一种用于通过信号线提供双向数据传输的通信电路(M11),从而接收第一数字数据流(DD1)并将相应的第一信号(S1)发送到信号线的近端 (TL)被发送到远程设备,远程设备连接到信号线(TL)的远端,从远程设备接收信号线(TL)的近端处的第二信号(S2) 以及从该信号导出第二数字数据流(RC1),包括用于响应于第一数字数据流(DD1)或从其导出的信号提供复制信号(S1b)的副本生成器(RG),以及 提取电路(EC),用于响应于复制信号(S1b)从第二信号(S2)提取第二数字数据流(RC1)和从信号线(TL)的近端推断的比较器信号(S2b) 。 本发明还涉及包括多个通信电路的自动测试设备,每个通信电路提供双向数据传输。
    • 6. 发明申请
    • APPARATUS, METHOD AND COMPUTER PROGRAM FOR OBTAINING A TIME-DOMAIN-REFLECTION RESPONSE-INFORMATION
    • 用于获取时域反射响应信息的装置,方法和计算机程序
    • WO2008135052A1
    • 2008-11-13
    • PCT/EP2007/003487
    • 2007-04-20
    • VERIGY (SINGAPORE) PTE. LTD.ROTH, Bernhard
    • ROTH, Bernhard
    • G01R31/11
    • G01R31/31905
    • An apparatus for obtaining a time-domain-reflection response-information comprises a signal driver adapted to apply two pulses of different pulse lengths to a TDR port in order to excite a first TDR response signal corresponding to a first pulse and a second TDR response signal corresponding to a second pulse. The apparatus comprises a timing determinator adapted to provide a timing Information on the basis of a first instance in time when the first TDR response signal crosses a threshold value and on the basis of a second instance in time when the second TDR response signal crosses the threshold value. The apparatus comprises a TDR response information calculator adapted to calculate an information about a TDR response on the basis of the timing information.
    • 用于获得时域反射响应信息的装置包括适于向TDR端口施加不同脉冲长度的两个脉冲的信号驱动器,以便激发对应于第一脉冲的第一TDR响应信号和第二TDR响应信号 对应于第二脉冲。 该装置包括一个定时确定器,适于在第一个TDR响应信号越过阈值时基于第一个实例提供定时信息,并且基于当第二个TDR响应信号越过阈值时的第二个实例 值。 该装置包括:TDR响应信息计算器,用于根据定时信息计算关于TDR响应的信息。