公开(公告)号：US20140103951A1

公开(公告)日：2014-04-17

申请号：US13649303

申请日：2012-10-11

Applicant: Tektronix, Inc.

Inventor： Daniel G. KNIERIM ,  William A. HAGERUP ,  Barton T. HICKMAN ,  Ira G. Pollock

IPC: G01R31/04 ,  G06F19/00 ,  G01R1/067

CPC classification number: G01R1/06788 ,  G01R1/06766 ,  G01R1/06794 ,  G01R31/024 ,  G01R31/026

Abstract: A test system can include a probe suitable to be coupled between a test measurement device and a device under test (DUT). The probe can include a signal input to receive an active signal from the DUT and a signal output to provide the active signal to the test measurement device. The probe can also include an input ground to connect to the DUT ground and an output ground to connect to the test measurement device ground. A probe ground connection checking device can automatically determine whether the probe ground connections to the DUT ground and test measurement device ground are solid.

Abstract translation: 测试系统可以包括适于耦合在测试测量设备和被测设备（DUT）之间的探头。 探头可以包括用于从DUT接收有效信号的信号输入和用于向测试测量装置提供有源信号的信号输出。 探头还可以包括一个连接到DUT地的输入接地和一个连接到测试测量设备地的输出地。 探头接地连接检查装置可以自动确定探头接地与DUT接地和测试测量设备接地是否牢固。

公开(公告)号：US20130278291A1

公开(公告)日：2013-10-24

申请号：US13922125

申请日：2013-06-19

Applicant: Tektronix, Inc.

Inventor： John F. STOOPS ,  Daniel G. KNIERIM

IPC: H03K5/24

CPC classification number: H03K5/2481 ,  G01R13/0254 ,  G01R31/3177

Abstract: A circuit includes a load; a first differential pair coupled to the load and responsive to input data; a second differential pair coupled to the load and responsive to the input data; a third differential pair coupled to the first differential pair and the second differential pair and responsive to a first control signal and a second control signal; a bias circuit configured to pull a node coupled to both the first differential pair and the second differential pair to a predetermined state; and a current source coupled to the third differential pair and the bias circuit.

Abstract translation: 电路包括负载; 耦合到所述负载并响应于输入数据的第一差分对; 耦合到所述负载并响应于所述输入数据的第二差分对; 耦合到所述第一差分对和所述第二差分对并响应于第一控制信号和第二控制信号的第三差分对; 偏置电路，被配置为将耦合到所述第一差分对和所述第二差分对的节点拉到预定状态; 以及耦合到第三差分对和偏置电路的电流源。