Patents Assigned to Teradyne
  • Patent number: 12287151
    Abstract: An example apparatus is for contacting a device to change a temperature of the device. The apparatus includes a plate configured to contact the device and a channel within the plate configured to enable flow of fluid between an input port and an output port. The plate includes a thermally conductive material to conduct heat between the device and the fluid. The channel includes multiple islands arranged in series. An island among the multiple islands is arranged to receive the fluid at a first side. The island is for splitting the fluid into a first flow and a second flow and for causing the first flow and the second flow to merge at a second side of the island that is downstream of the first side of the island.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: April 29, 2025
    Assignee: Teradyne, Inc.
    Inventor: Jack Michael Thompson
  • Publication number: 20250067796
    Abstract: Example circuitry is usable in testing a device under test (DUT). The circuitry includes test inputs; a resistor ladder including resistors electrically connected in series, with the resistor ladder being electrically connected to each of the test inputs; and first operational amplifiers, with each first operational amplifier including a first input and a first output, with each first input being electrically connected to the resistor ladder, and with each first output to electrically connect to the DUT. The circuitry includes floating circuitry which includes a second operational amplifier. The second operational amplifier includes a second input electrically connected to the resistor ladder and a reference input; a first power input to receive a first voltage; and a second power input to receive a second voltage. The floating circuitry is configured to apply the first voltage and the second voltage to power inputs of each of the first operational amplifiers.
    Type: Application
    Filed: August 21, 2023
    Publication date: February 27, 2025
    Applicant: Teradyne, Inc.
    Inventor: Douglas W. Pounds
  • Patent number: 12235317
    Abstract: An example test system includes a test instrument configured to test a device under test (DUT). The test instrument is configured to interact with the DUT using first commands having a first syntax. The test system also includes one or more processing devices configured (i) to receive a definitions file, where the definitions file includes information defining a second syntax that is used by a third party to communicate with the DUT, (ii) to receive second commands having the second syntax, (iii) to convert the second commands into the first commands having the first syntax based on the definitions file, and (iv) to send the first commands to the test instrument to enable the test instrument to interact with the DUT.
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: February 25, 2025
    Assignee: Teradyne, Inc.
    Inventor: Richard W. Fanning
  • Patent number: 12174244
    Abstract: Device under test (DUT) simulation equipment includes: a first circuit board including a first field programmable gate array (FPGA); a second circuit board including a processor; and a power distribution board, wherein the first circuit board is connected to the power distribution board, and the power of the first circuit board is supplied by the power distribution board, wherein the second circuit board is connected to the power distribution board, and the power of the second circuit board is supplied by the power distribution board, wherein when the DUT simulation equipment is connected to a tester to perform testing, the DUT simulation equipment simulates the performance of a DUT providing a response signal after receiving a test signal from the tester, and wherein, in the DUT simulation equipment, only the first circuit board receives the test signal from the tester, and the second circuit board controls the first circuit board by means of a control signal.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: December 24, 2024
    Assignee: Teradyne (Asia) Pte. Ltd.
    Inventors: Min Nie, Yi Hou, Siqiang Jia, Yang Xu, Jun Tang, Yongpeng Mu, Jun Liu, Bo Yu
  • Patent number: 12050244
    Abstract: Aspects of the present disclosure are directed to a circuit and methods of operating the same to provide an off-state circuit path with a programmable impedance in combination with a negative gate-to-source voltage Vgs for power transistors in an inverter configuration to prevent gate voltage glitches. Gate voltage glitch may occur due to Miller current generation across the gate path of a power transistor in the off state during rapid voltage transient dV/dt when the other, complementary power transistor is switched on or off. According to one aspect, using a negative gate-to-source voltage to turn-off a power transistor may mitigate gate voltage spikes caused by a large voltage transient when the complimentary power transistor is turned on, thus preventing parasitic turn-on of the power transistor.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: July 30, 2024
    Assignee: Teradyne, Inc.
    Inventor: Martin Hollander
  • Patent number: 11921598
    Abstract: Example techniques may be implemented as a method, a system or more non-transitory machine-readable media storing instructions that are executable by one or more processing devices, Operations performed by the example techniques include obtaining data representing results of tests executed by one or more test instruments on an initial set of devices under test (DUTs) in a test system; and using the data to train a machine learning model. The machine learning model is for predicting which of the tests will produce failing results for a different set of DUTs. DUTs in the different set have one or more features in common with DUTs in the initial set.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: March 5, 2024
    Assignee: Teradyne, Inc.
    Inventor: Padmanabha Kannampalli
  • Patent number: 11855376
    Abstract: An example contact head includes coaxial contacts configured for transmission of radio frequency (RF) signals or digital signals between a test system and a device under test (DUT). Each of the coaxial contacts is configured to target a specific impedance. Each of the coaxial contacts includes a coaxial structure having an open-curve shape. The coaxial structure includes a spring material that bends in response to applied force and that returns to the open-curve shape absent the applied force. The coaxial structure includes a center conductor terminating in a contact pin and a return conductor separated by a dielectric from the center conductor. At least part of the center conductor and the return conductor include an electrically-conductive material. Flexible contacts on the coaxial contact include the electrically-conductive material.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: December 26, 2023
    Assignee: Teradyne, Inc.
    Inventor: Roger A. Sinsheimer
  • Publication number: 20230408571
    Abstract: Aspects of the present disclosure are directed to a circuit and methods of operating the same to provide an off-state circuit path with a programmable impedance in combination with a negative gate-to-source voltage Vgs for power transistors in an inverter configuration to prevent gate voltage glitches. Gate voltage glitch may occur due to Miller current generation across the gate path of a power transistor in the off state during rapid voltage transient dV/dt when the other, complementary power transistor is switched on or off. According to one aspect, using a negative gate-to-source voltage to turn-off a power transistor may mitigate gate voltage spikes caused by a large voltage transient when the complimentary power transistor is turned on, thus preventing parasitic turn-on of the power transistor.
    Type: Application
    Filed: June 16, 2022
    Publication date: December 21, 2023
    Applicant: Teradyne, Inc.
    Inventor: Martin Hollander
  • Publication number: 20230366922
    Abstract: Device under test (DUT) simulation equipment includes: a first circuit board including a first field programmable gate array (FPGA); a second circuit board including a processor; and a power distribution board, wherein the first circuit board is connected to the power distribution board, and the power of the first circuit board is supplied by the power distribution board, wherein the second circuit board is connected to the power distribution board, and the power of the second circuit board is supplied by the power distribution board, wherein when the DUT simulation equipment is connected to a tester to perform testing, the DUT simulation equipment simulates the performance of a DUT providing a response signal after receiving a test signal from the tester, and wherein, in the DUT simulation equipment, only the first circuit board receives the test signal from the tester, and the second circuit board controls the first circuit board by means of a control signal.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 16, 2023
    Applicant: Teradyne (Asia) Pte. Ltd.
    Inventors: Min Nie, Yi Hou, Siqiang Jia, Yang Xu, Jun Tang, Yongpeng Mu, Jun Liu, Bo Yu
  • Patent number: 11648674
    Abstract: A method and system for programming picking and placing of a workpiece is provided. Embodiments may include associating a workpiece with an end effector that is attached to a robot and scanning the workpiece while the workpiece is associated with the end effector. Embodiments may also include determining a pose of the workpiece relative to the robot, based upon, at least in part, the scanning.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: May 16, 2023
    Assignee: Teradyne, Inc.
    Inventor: Christopher Thomas Aloisio
  • Patent number: 11511415
    Abstract: A method and computing system comprising identifying one or more candidate objects for selection by a robot. A path to the one or more candidate objects may be determined based upon, at least in part, a robotic environment and at least one robotic constraint. A feasibility of grasping a first candidate object of the one or more candidate objects may be validated. If the feasibility is validated, the robot may be controlled to physically select the first candidate object. If the feasibility is not validated, at least one of a different grasping point of the first candidate object, a second path, or a second candidate object may be selected.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: November 29, 2022
    Assignee: Teradyne, Inc.
    Inventors: Eric Lenhart Truebenbach, Douglas E. Barker, Christopher Thomas Aloisio, Evgeny Polyakov, Chu-Yin Chang
  • Patent number: 11514958
    Abstract: Circuitry and methods of operating the same to strobe a DQ signal with a gated DQS signal are described. Some aspects are directed to a gating scheme to selectively pass a received strobe signal such as a DQS strobe signal based on a state of a drive enable (DE) signal in a drive circuit in the ATE, such that edges generated by the drive circuit are prevented from mistakenly strobing a received data signal such as a DQ signal.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: November 29, 2022
    Assignee: Teradyne, Inc.
    Inventors: Ronald A. Sartschev, Jan Paul Anthonie van der Wagt, Nathan Nary, Grady Borders
  • Patent number: 11498207
    Abstract: An example test head manipulator includes a tower having a base and a track, where the track is vertical relative to the base, and arms to enable support for the test head. The arms are connected to the track to move the test head vertically relative to the tower, and the arms are configured to control rotation of the test head. Each of the arms includes a cam that is rotatable, and at least one plunger in contact with the cam and that is configured to contact the test head. Rotation of the cam is controllable to move the at least one plunger to offset an uncontrolled rotation the test head.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: November 15, 2022
    Assignee: Teradyne, Inc.
    Inventor: Isaac N. Silva
  • Patent number: 11465282
    Abstract: A method and computing system comprising identifying a plurality of robot configurations for each inspection point of a plurality of inspection points of a problem. A graph may be generated with each feasible robot configuration as a node on the graph. A distance may be calculated between a pair of feasible robot configurations. A shortest complete path connecting each node on the graph may be obtained based upon, at least in part, the distance between the pair of feasible robot configurations.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: October 11, 2022
    Assignee: Teradyne, Inc.
    Inventor: Chalongrath Pholsiri
  • Patent number: 11460845
    Abstract: An automated mobile vehicle (AMV) including a frame forming a pallet bed for a pallet, and having an automated mobile robot bus, separate and distinct from the pallet bed, a drive section coupled to the frame to provide automated vehicle mobility, and a controller operably coupled to the drive section to effect automated vehicle mobility, wherein, the robot bus has a bus interface for docking independent automated mobile robots (AMR) to the frame so that the AMR is carried by the frame, wherein the AMR has independent automated mobility so that undocked from the frame, the AMR is free to roam independent from the AMV, and wherein the AMR is fungible for docking with the frame from a number different AMRs, to effect a predetermined material handling characteristic, and wherein the controller is coupled to the AMR to manage control of the predetermined material handling characteristic with the AMR undocked from the frame and moving as a unit apart from the frame.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: October 4, 2022
    Assignee: Teradyne, Inc.
    Inventor: David Levasseur
  • Patent number: 11440119
    Abstract: Embodiments of the present disclosure are directed towards a robotic system and method. The system may include a robot and a three dimensional sensor device associated with the robot configured to scan a welding area and generate a scanned welding area. The system may include a processor configured to receive the scanned welding area and to generate a three dimensional point cloud based upon, at least in part the scanned welding area. The processor may be further configured to perform processing on the three dimensional point cloud in a two-dimensional domain. The processor may be further configured to generate one or more three dimensional welding paths and to simulate the one or more three dimensional welding paths.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 13, 2022
    Assignee: Teradyne, Inc.
    Inventors: Chu-Yin Chang, Brett L. Limone, Ralph F. Polimeni, Jr., James D. English
  • Patent number: 11415623
    Abstract: An example test system includes power amplifier circuitry to force voltage or current to a test channel and one or more processing devices configured to control the power amplifier circuitry to comply with a compliance curve. The compliance curve relates output of the voltage to output of the current. According to the compliance curve, maximum current output increases as an absolute value of the voltage output increases.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: August 16, 2022
    Assignee: Teradyne, Inc.
    Inventors: Jason A. Messier, Bryce M. Wynn, Ernest DiMicco
  • Patent number: 11402830
    Abstract: A collaborative logistic facility management system for a logistic facility includes multiple robot autonomous guided vehicles and a system controller. The vehicles transport logistics goods or pallets between truck portals and storage locations and are configured for autonomous guidance travel, in autonomous mode and include a collaborating operator input for collaborative autonomous guided vehicle navigation and guidance. The system controller commands each vehicle to transfer the logistic goods or pallets between the truck portals and the storage locations, identifies a predetermined truck portal of a corresponding truck to be loaded or to be unloaded, and generates a collaborative zone. The controller generates a queue of robot autonomous guided vehicles on a side of the collaborative zone and commands the multiple robot autonomous guided vehicles disposed to load or unload the corresponding truck to move in autonomous mode into the queue.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: August 2, 2022
    Assignee: Teradyne, Inc.
    Inventors: Robert Sullivan, Justin Holwell
  • Patent number: 11358282
    Abstract: Embodiments of the present disclosure are directed towards a robotic system. The system may include a robot configured to receive an initial constrained approach for performing a robot task. The system may further include a graphical user interface in communication with the robot. The graphical user interface may be configured to allow a user to interact with the robot to determine an allowable range of robot poses associated with the robot task. The allowable range of robot poses may include fewer constraints than the initial constrained approach. The allowable range of poses may be based upon, at least in part, one or more degrees of symmetry associated with a workpiece associated with the robot task or an end effector associated with the robot. The system may also include a processor configured to communicate the allowable range of robot poses to the robot.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 14, 2022
    Assignee: Teradyne, Inc.
    Inventors: Eric Lenhart Truebenbach, Evgeny Polyakov, Peter Lustig
  • Patent number: 11345577
    Abstract: A mobile automated guided vehicle pallet stacker and destacker system including an automated guided vehicle having a pallet pick that moves to pick a pallet and stably hold the picked pallet on the pick. A sensor is connected to the vehicle and configured to detect a predetermined characteristic of at least one pallet located in a stack of one or more pallets. A sensing element of the sensor is mounted to the vehicle so as to define a predetermined relation between the sensing element and a pallet pick interface. Actuation of the pick effects scanning of the stack and detection, with the sensing element, of the predetermined characteristic. A controller determines from the predetermined characteristic the at least one pallet is in a topmost pallet position of the stack, and positions the pallet pick interface of the pick to interface the stack based on the determined topmost pallet position.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: May 31, 2022
    Assignee: Teradyne, Inc.
    Inventors: Justin Holwell, David Levasseur, Tyler Barron