Tektronix, Inc.

Sam J Strickling

Daniel S Froelich

Michelle L Baldwin

Lin-Yung Chen

Jonathan San

Julie A Campbell

David T Engquist

David Everett Burgess

Shane A Hazzard

Andrew Mccann

Systems and methods for automated recognition of a device under test and retrieving data associated with the device under test based on the recognition. The systems and methods include receiving a recognition key based on an identifying characteristic of the device under test, matching the received recognition key to a stored key in a database, retrieving data related to the stored key when the received recognition key matches the stored key, transmitting instructions to perform an action on a test and measurement device based on the retrieved data, receiving new data related to the device under test, and updating the data in the database related to the stored key with the new data.

Automated recognition of a device under test

A calibrated test and measurement cable for connecting one or more devices under test and a test and measurement instrument, including a first port structured to electrically connect to a first signal lane, a second port structured to electrically connect to a second signal lane, a third port structured to electrically connect to a test and measurement instrument, and a multiplexer configured to switch between electrically connecting the first port to the third port and connected the second port to the third port. The first and second signal lanes can be included on the same device under test or different devices under test. An input can receive instructions to operate the multiplexer.

Multiplexer-enabled cables and test fixtures

A test and measurement system has a test and measurement instrument having an adaptor with an interface configured to communicate through one or more communications links with a new device under test to receive new test results, a memory configured to store a database of test results and a database of analyzed test results related to tests performed with one or more prior devices under test, a data analyzer connected to the test and measurement instrument through the one or more communications link, the data analyzer configured to analyze the new test results based on the stored test results, and a health score generator configured to generate a health score for the new device under test based on the analysis from the data analyzer.

Test and measurement system for analyzing devices under test

A system for acquiring a test-and-measurement signal from a device under test (DUT) including a test-and-measurement probe, a user interface, a robot, and a controller. The probe is configured to acquire an electronic signal from the DUT. The user interface displays a digital representation of a physical electronic circuit of the DUT, including portrayals of virtual nodes that correspond to actual nodes on the DUT. The robot is configured to automatically position the probe with respect to the DUT. The controller is configured to receive from the user interface an electronic indication of a selected node of the digital representation of the physical electronic circuit, where the selected node is one of the virtual nodes. The controller is further configured to provide instructions to the robot to automatically position the probe to a position on the physical electronic circuit corresponding to the actual node.

Indirect acquisition of a signal from a device under test

A margin tester including an identification reader configured to receive an adaptor identifier of an adaptor, an interface configured to connect to a device under test through the adaptor, and one or more processors configured to assess a margin, such as an electrical margin or an optical margin, of a device under test and tag the assessment with the adaptor identifier. Assessing the margin can include assessing the margin based on an expected margin that is predicted or provided based on the adaptor identifier.

Margin test data tagging and predictive expected margins

A cable structured to be repeatedly connected to a device, each repeated connection causing degradation of the cable, the cable including a condition indicator disposed on the cable and configured to be updated with each successive connection of the cable into the device.

Cable condition indicator

A margin testing device includes at least one interface structured to connect to a device under test (DUT) one or more controllers structured to create a set of test signals based on a sequence of pseudo random data and one or more pre-defined parameters, and an output structured to send the set of test signals to the DUT. Methods and a system for testing a DUT with the disclosed margin tester and other testing device are also described.

Systems, methods, and devices for high-speed input/output margin testing

Systems, devices and methods for high-speed I/O margin testing can screen high volumes of pre-production and production parts and identify cases where the electrical characteristics have changed enough to impact operation. The margin tester disclosed is lower cost, easier to use and faster than traditional BERT and scopes and can operate on the full multi-lane I/O links in their standard operating states with full loading and cross-talk. The margin tester assesses the electrical receiver margin of an operation multi-lane high speed I/O link with a device under test simultaneously in either or both directions. In a technology-specific form, an embodiment of the margin tester can be implemented as an add-in card margin tester to test motherboard slots of a mother board under test, or as a as a motherboard with slots to test add-in cards.

Systems, methods and devices for high-speed input/output margin testing

A system for data creation, storage, analysis, and training while margin testing includes a margin test generator coupled through an interface to a Device Under Test (DUT). The margin test generator is structured to modify test signals for testing the DUT during one or more testing states of a test session to create testing results. The testing results are stored in a data repository along with a DUT identifier of the DUT tested during the test session. A comparator determine whether any results of the DUT test results match a predictive outcome that is based from an analysis of previous DUT tests. If so, a message generator produces an indication that the tested DUT matched the predictive outcome.

A test and measurement system for analyzing a device under test, including a database configured to store test results related to tests performed with one or more prior devices under test, a receiver to receive new test results about a new device under test, a data analyzer configured to analyze the new test results based on the stored test results, and a health score generator configured to generate a health score for the new device under test based on the analysis from the data analyzer.

A thermal management system for a test-and-measurement probe that includes a thermally insulated shroud and a fluid inlet conduit. The shroud is configured to enclose a first portion of a probe head of the probe within an interior cavity of the shroud, while permitting a second portion of the probe head to extend out of the shroud. The shroud further includes a fluid outlet passageway configured to permit a heat-transfer fluid to pass from a probe-head end of the interior cavity, through the interior cavity of the shroud, and out of the shroud through an access portion of the shroud. The fluid inlet conduit enters the shroud through the access portion of the shroud, extends through the interior cavity of the shroud, and is configured to introduce the heat-transfer fluid to the probe-head end of the interior cavity.

Growing community of inventors

Portland, OR, United States of America

Sam J Strickling