Plural, Automatically Sequential Tests Patents (Class 324/73.1)
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Patent number: 11231741Abstract: The present invention is directed to electrical circuits. More specifically, embodiments of the present invention provide a clock generator that includes a source clock generates a source clock signal at a low frequency. A clock multiplier multiplies the source clock signal by a predetermined factor to generate a high frequency clock signal. The high frequency clock signal is corrected by a time adjustment module by applying a compensation signal. The compensation signal is determined by a jitter measurement module, which uses both the high frequency clock signal and a jitter reference signal to determine the compensation signal. There are other embodiments as well.Type: GrantFiled: October 11, 2018Date of Patent: January 25, 2022Assignee: MARVELL ASIA PTE, LTD.Inventor: Aaron Buchwald
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Patent number: 11226377Abstract: A method carries out a self-test of an electrical converter circuit, by use of a control device, proceeding from a known operating point at which a predetermined electrical operating variable has a predetermined starting value, a measurement cycle is begun by the converter circuit being operated. It is additionally provided that the time since the starting of the measurement cycle is detected, and the electrical operating variable and the time constitute two monitoring variables of the self-test. The measurement cycle is ended if one of the two monitoring variables satisfies an ending criterion. A test value is then formed from a measurement value of the other of the two monitoring variables at the end of the measurement cycle and a check is made to ascertain whether the test value lies outside a predetermined reference interval. If so an error signal is generated.Type: GrantFiled: October 4, 2018Date of Patent: January 18, 2022Assignee: Continental Automotive GmbHInventors: Christian Stoeger, Emil Kovatchev
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Patent number: 11221977Abstract: A node in a daisy chain includes a serial data input port configured to receive input from an electronic device, a serial data output port configured to send output to another electronic device, a chip select input port configured to receive input from a master control unit, a timer, and an interface circuit. The interface circuit may be configured to, in a daisy chain mode, copy data received at the serial data input port to the serial data output port, and upon receipt of a changed edge of a chip select signal on the chip select input port, initiate the timer. The interface circuit may be configured to, upon the completion of a time to be determined by the timer, enter the daisy chain mode.Type: GrantFiled: August 20, 2020Date of Patent: January 11, 2022Assignee: Microchip Technology IncorporatedInventor: Vincent Quiquempoix
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Patent number: 11221360Abstract: The present invention is directed to a system for testing printed circuit boards. The system is configured to test the simultaneously test a multiplicity of printed circuit boards. The system examines the electrical characteristics of a printed circuit board and is operable to identify if a printed circuit board meets a desired characteristic.Type: GrantFiled: June 11, 2021Date of Patent: January 11, 2022Assignee: LAT ENTERPRISES, INC.Inventors: Laura Thiel, Carlos Cid, Michael Tran, Giancarlo Urzi
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Patent number: 11215297Abstract: Disclosed is a vacuum valve having a valve seat, which has a valve opening, defining an opening axis, and a first sealing surface, a valve closure having a second sealing surface corresponding to the first sealing surface, a drive unit coupled to the valve closure, which can be moved from an open position, in which the valve closure and the valve seat do not contact each other, to a closed position, in which there is a sealing contact between the first sealing surface and the second sealing surface by a seal there between, and the valve opening is sealed gastight as a result. The vacuum valve has at least one temperature sensor, where the temperature sensor is designed and arranged such that, from the temperature sensor, a measurement signal representing thermal information in respect of at least one part of the vacuum valve can be detected.Type: GrantFiled: June 28, 2018Date of Patent: January 4, 2022Assignee: VAT HOLDING AGInventors: Adrian Eschenmoser, Andreas Hofer
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Patent number: 11205496Abstract: A programmable testing apparatus imposes power interruptions on a storage device at any given point of time under at least one workload according to at least one protocol for tests. The programmable testing apparatus includes a controller unit connected to a workload unit, a power control unit, a protocol control unit and a data buffer unit. The controller unit calculates and receives and replies commands in the tests. The workload unit imposes various workloads on the storage device. The power control unit imposes power interruptions on the storage device under control of the controller unit. The protocol control unit provides commands according to the protocol for tests. The data buffer unit stores critical data and information to check whether data stored in the storage device are correct.Type: GrantFiled: September 4, 2020Date of Patent: December 21, 2021Assignees: GOKE TAIWAN RESEARCH LABORATORY LTD., XINSHENG INTELLIGENT TECHNOLOGY CO., LTD.Inventors: Po-Chien Chang, Ru-Yi Yang, Po-Wen Hsieh
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Patent number: 11199584Abstract: Accordingly, an improved interposer connection testing technique is provided, employing parallel pseudo-random bit sequence (PRBS) generators to test all the interconnects in parallel and simultaneously detect any correctable defects. In one embodiment, a microelectronic assembly includes an interposer electrically connected in a flip-chip configuration to an originating IC (integrated circuit) die and to a destination IC die, the substrate having multiple conductive traces for a parallel communications bus between the IC dies. The originating IC die has a first parallel PRBS (pseudo-random binary sequence) generator to drive test PRBSs with different phases in parallel across the interposer traces. The destination IC die has a second parallel PRBS generator to create reference PRBSs with different phases, and a bitwise comparator coupled to receive the test PRBSs from the interposer traces and to compare them to the reference PRBSs to provide concurrent fault monitoring for each of the traces.Type: GrantFiled: January 17, 2018Date of Patent: December 14, 2021Assignee: Credo Technology Group LimitedInventor: Calvin Xiong Fang
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Patent number: 11178754Abstract: A display device includes a display panel including a display surface and a rear surface opposite to each other; and a flexible printed circuit board attachable to the display panel at the rear surface of the display panel. The flexible printed circuit board includes a conductive layer, a passivation layer defining an outer surface of the flexible printed circuit board, and a base film between the conductive layer and the passivation layer, the outer surface includes a first region at which the rear surface of the display panel is attachable to the flexible printed circuit board and a second region at which the rear surface of the display panel is not attached to the flexible printed circuit board, and the first region has greater surface roughness than the second region.Type: GrantFiled: December 30, 2019Date of Patent: November 16, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wi Jin Nam, Jong Won Moon
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Patent number: 11165434Abstract: Systems for monitoring or control can include reconfigurable input and output channels. Such reconfigurable channels can include as few as a single terminal and a ground pin, or such channels can include three or four terminal configuration such as for use in four-terminal resistance measurements. Channel reconfiguration can be accomplished such as using software-enabled or firmware-enabled control of channel hardware. Such channel hardware can include analog-to-digital and digital-to-analog conversion capability, including use of a digital-to-analog converter to provide field power or biasing. In an example, compensation can be provided to suppress a leakage current from flowing through a digital output to a load connected to the reconfigurable channel terminal, particularly when the digital output is disabled.Type: GrantFiled: March 13, 2020Date of Patent: November 2, 2021Assignee: Analog Devices International Unlimited CompanyInventors: Donal G. O'Sullivan, Aidan J. Cahalane, Patrick C. Kirby, Catherine J. Redmond, Derrick Hartmann, Bride Ni Riagain
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Patent number: 11164649Abstract: A test method for a memory device including the following steps is provided. A redundancy function of the memory device is disable and a first data is written to a first memory array. The redundancy function of the memory device is enabled and a second data is written to a second memory array. The first data and the second data are complementary. A redundancy information is read from a non-volatile memory block according to a margin condition and the second memory array is read based on the redundancy information to obtain a first readout data. A first test result is generated by comparing the second data and the first readout data. The second memory array includes a part of memory cells of the first memory array and at least one redundancy memory cell.Type: GrantFiled: April 20, 2020Date of Patent: November 2, 2021Assignee: Winbond Electronics Corp.Inventor: Tzi-Wen Pan
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Patent number: 11150297Abstract: An IC includes an IEEE 1149.1 standard test access port (TAP) interface and an additional Off-Chip TAP interface. The Off-Chip TAP interface connects to the TAP of another IC. The Off Chip TAP interface can be selected by a TAP Linking Module on the IC.Type: GrantFiled: May 15, 2020Date of Patent: October 19, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Lee D. Whetsel
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Patent number: 11150293Abstract: A horizontal probing fixture includes two bridge modules each having two spaced-apart pedestals, and a bridge plate connecting the pedestals. A first sliding unit for carrying and sliding a probe device includes two first sliding blocks respectively mounted and slidable on the bridge plates of the bridge modules, a first slide plate having two opposite ends respectively connecting the first sliding blocks, and two locking modules respectively disposed on the first sliding blocks. Each first sliding block has a bottom end complementarily engaged to and slidable on the bridge plate of one of the bridge modules. The locking modules are operable to respectively lock or unlock the first sliding blocks relative to the bridge plates.Type: GrantFiled: July 15, 2020Date of Patent: October 19, 2021Inventors: Kuan-Hung Chen, Li-Cheng Richard Zai
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Patent number: 11143702Abstract: A test access port circuit includes a data input terminal, a reset terminal, a mode selection terminal, at least one test data register set, an auxiliary data register set, an instruction register set, and a controller. The controller is coupled to the mode selection terminal and the instruction register set, and controls the at least one test data register set, the auxiliary data register set, and the instruction register set according to at least mode selection signal received by the mode selection terminal. In a reset terminal input mode, when the controller controls a test data register set of the at least one test data register set to store a first input data bit received by the data input terminal, the auxiliary data register set stores a second input data bit received by the reset terminal.Type: GrantFiled: August 23, 2020Date of Patent: October 12, 2021Assignee: Realtek Semiconductor Corp.Inventor: Yuefeng Chen
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Patent number: 11131699Abstract: A method that includes changing a probe angle with respect to the conductor surface of a substrate that has a flat conductor surface mounted on the mounting surface of a stage in a high-frequency test system, thereby changing the state of contact of the tip of a signal terminal and tip of a ground terminal with the conductor surface, outputting high-frequency signals from the signal terminal to the conductor surface and receiving reflected signals using the probe to find S-parameters at different probe angles, and determining, based on a plurality of the S-parameters, a reference probe angle at which the reference line formed connecting the tip of the signal terminal and tip of the ground terminal is parallel with the conductor surface.Type: GrantFiled: September 7, 2018Date of Patent: September 28, 2021Assignee: NATIONAL INSTITUTE OF ADVANCED SCIENCE AND TECHNOLOGYInventors: Ryo Sakamaki, Masahiro Horibe
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Patent number: 11125807Abstract: A support fixture is adapted for utilization of a test probe, and includes two pedestals and at least one moveable carriage assembly. Each pedestal includes a spacing block and at least one side plate connected to the spacing block extending in a longitudinal direction. The at least one moveable carriage includes a vertical panel and an adjustable holding device. The vertical panel is engaged with the at least one side plate of one of the two pedestals, and is slidable parallel to the longitudinal direction relative to the at least one side plate of each of the two pedestals. The adjustable holding device is operable for fixing the vertical panel to the at least one side plate of the one of the two pedestals and is adapted to hold the test probe.Type: GrantFiled: January 15, 2020Date of Patent: September 21, 2021Inventors: Kuan-Hung Chen, Li-Cheng Richard Zai
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Patent number: 11074147Abstract: A method for a continuous mutual extended processor self-test is provided. The method is implemented by a system including a plurality of cores. The system sets an operating condition for the continuous mutual extended processor self-test. An assist processor of the plurality of cores executes a test program that implements the continuous mutual extended processor self-test on a core under test of the plurality of cores. The system determines a pattern and a response during the test program execution and repeats the test program until the test program has finished or failed.Type: GrantFiled: November 30, 2018Date of Patent: July 27, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Tobias Ulrich Bergmann, Oliver Benke, Thomas Gentner
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Patent number: 11047910Abstract: A test override circuit includes a memory that includes multiple memory instances. A path selector receives a control signal from automatic test pattern generator equipment (ATE) to control data access to data paths that are operatively coupled between the memory instances and a plurality of logic endpoints. The path selector generates an output signal that indicates which of the data paths is selected in response to the control signal. A gating circuit enables the selected data paths to be accessed by at least one of the plurality of logic endpoints in response to the output signal from the path selector.Type: GrantFiled: November 9, 2018Date of Patent: June 29, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Wilson Pradeep, Prakash Narayanan
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Patent number: 11038325Abstract: Systems and methods for a wiring racetrack for aircraft are described herein. The wiring racetrack can include a wiring pallet with a plurality of channels. A plurality of different wiring groups can each be disposed within one of the channels. Each of the wiring groups can include wiring of exclusively one category or one category and neutral wires. Connectors can be electrically coupled to the wires of the group. Fabrication of the wiring racetrack can be automatically performed by one or more robots that include an end effector and a robotic transfer unit.Type: GrantFiled: July 23, 2019Date of Patent: June 15, 2021Assignee: The Boeing CompanyInventor: Shawn David Mohlman
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Patent number: 11032725Abstract: System and method for testing a wireless data packet signal transceiver device under test (DUT) in which external control circuitry manages initiation of execution by a tester of test program instructions defining multiple self-terminating test control sequences in one or more desired sequences. The test control sequences may be pre-stored in a tester for subsequent execution under control of control signals sourced externally by the external control circuitry via separate control signals.Type: GrantFiled: March 18, 2020Date of Patent: June 8, 2021Assignee: LITEPOINT CORPORATIONInventors: Christian Volf Olgaard, Ruizu Wang, Chen Cao
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Patent number: 11018681Abstract: Techniques for testing circuits, such as converter circuits, such as digital-to-analog converter circuits (DACs), are described. A digital signal processor (DSP) can generate a waveform, such as sine wave, and apply the sine wave to the circuit under test, e.g., a DAC. The DAC can generate an output and the DSP can regenerate the waveform and determine an accuracy of the DAC such as to determine whether the DAC meets one or more specified criteria. In some example implementations, the tests can be performed using variable voltage amplitude segments.Type: GrantFiled: March 18, 2020Date of Patent: May 25, 2021Assignee: Analog Devices International Unlimited CompanyInventor: David James Hamilton
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Patent number: 11016142Abstract: The inspection system 100 is constructed by assembling inspection modules 10 configured to inspect inspection target objects and a transfer module 20 configured to transfer the inspection target object to the corresponding inspection module. The inspection system 100 is configured to transfer the inspection target objects into the inspection modules by the transfer module and inspect the inspection target objects in sequence. The adjustment method of the inspection system includes preparing an auxiliary element having a preset function of the inspection module 10 or a preset function of the transfer module 20; and adjusting, with respect to an adjustment which needs to be performed after the inspection system is constructed, the transfer module 20, or each of the inspection modules 10 or the inspection modules 10 as a single system by connecting the auxiliary element 60 (70, 80, 90) to the transfer module 20 or the inspection module 10.Type: GrantFiled: July 25, 2017Date of Patent: May 25, 2021Assignee: TOKYO ELECTRON LIMITEDInventor: Minoru Uchida
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Patent number: 11009550Abstract: An automated test equipment (ATE) system capable of performing a test of semiconductor devices is presented. The system comprises a first test board including a first FPGA communicatively coupled to a controller via an interface board, wherein the first FPGA comprises a first core programmed to implement a communication protocol, and further wherein the FPGA is programmed with at least one hardware accelerator circuit operable to internally generate commands and data for testing a DUT. The system also includes a second test board comprising a second FPGA communicatively coupled to the first test board, wherein the second FPGA comprises a second core programmed to implement a communication protocol for a device under test, wherein the second FPGA is further programmed to simulate a DUT, and wherein the first FPGA is operable to communicate with the second FPGA in order to test a communication link between the first test board and the second test board.Type: GrantFiled: March 7, 2018Date of Patent: May 18, 2021Assignee: ADVANTEST CORPORATIONInventors: Duane Champoux, Mei-Mei Su
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Patent number: 11009546Abstract: A test and measurement device includes an input configured to receive an analog signal from a Device Under Test (DUT), an Analog to Digital Converter (ADC) coupled to the input and structured to convert the analog signal to a digital signal, a receiver implemented in a first Field Programmable Gate Array (FPGA) and structured to accept the digital signal and perform signal analysis on the digital signal, a transmitter implemented in a second FPGA and structured to generate a digital output signal, and a Digital to Analog Converter (DAC) coupled to the transmitter and structured to convert the digital output signal from the transmitter to an analog signal, and structured to send the analog signal to the DUT. The receiver and the transmitter are coupled together by a high speed data link over which data about the current testing environment may be shared.Type: GrantFiled: June 13, 2019Date of Patent: May 18, 2021Assignee: Tektronix, Inc.Inventors: Pirooz Hojabri, Joshua O'Brien, Gregory A. Martin, Patrick Satarzadeh, Karen Hovakimyan
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Patent number: 11010994Abstract: Systems, methods, and apparatus for maintenance over an auxiliary power line are disclosed. In one or more embodiments, a disclosed method for retrieving maintenance data from a unit on a vehicle comprises powering the unit by an auxiliary power line connected to the unit or powering the unit by a primary power line connected to the unit. The method further comprises retrieving, by a digital source controller, the maintenance data off of the unit via the auxiliary power line by using broadband over power line (BPL). Further, the method comprises providing power to the auxiliary power line by the digital source controller. In one or more embodiments, the maintenance data comprises built in test (BIT) data, built in test equipment (BITE) data, health management data, configuration data, at least one hardware (HW) part number, and/or at least one software (SW) version number.Type: GrantFiled: July 31, 2018Date of Patent: May 18, 2021Assignee: The Boeing CompanyInventor: Gregory L. Sheffield
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Patent number: 10997043Abstract: A semiconductor device capable of executing fault injection test on a plurality of failure detection mechanism in a short time is provided. The semiconductor device 1 has a plurality of hierarchical modules and an error control module 100 for controlling errors in the plurality of hierarchical modules. Each hierarchical module has a safety mechanism to detect failures in the functions of the components that make up the hierarchical modules. The error control module 100 includes a status register 120 configured to record data indicative of the status of failure of each hierarchical module, and a fault injection function 110 that outputs an error signal to the status register 120 to perform fault injection test. The error signal is inputted into the safety mechanism via the status register 120.Type: GrantFiled: September 19, 2019Date of Patent: May 4, 2021Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Kazuo Kato, Hiroshi Morita
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Patent number: 10983161Abstract: An integrated circuit, comprising functional circuitry and testing circuitry. A first set of pads is operable in a first state for communicating testing signals to the testing circuitry and operable in a second state for communicating input/output signals to the functional circuitry. A second set of pads, differing from the first set of pads, is operable in the second state for communicating testing signals to the testing circuitry for testing signals associated in the second state with the first set of pads.Type: GrantFiled: April 10, 2019Date of Patent: April 20, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Prakash Narayanan, Rajesh Kumar Mittal, Rajat Mehrotra
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Patent number: 10977404Abstract: Disclosed approaches for dynamically creating one or more scan chains in a programmable integrated circuit (IC) include placing elements of a circuit design on first registers of the programmable IC. A processor can determine second registers of the programmable IC that are unused by the circuit design after placing the elements of the circuit design. Data-out pins of the first registers are coupled to data-in pins of the second registers, respectively, and the second registers are coupled into a scan chain.Type: GrantFiled: January 28, 2020Date of Patent: April 13, 2021Assignee: XILINX, INC.Inventors: Srinivas T. Reddy, Dinesh Gaitonde, Ritesh Mani
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Patent number: 10970443Abstract: A method of detecting a fault in a circuit design undergoing emulation, includes in part, computing N signatures of a corresponding reference circuit design during each of the N cycles, computing N signatures of the circuit design undergoing emulation during each of the N cycles, comparing, for each of the N cycles, the signature of the reference circuit design to the signature of the circuit design undergoing emulation, and detecting whether a mismatch exists between the reference circuit design signature and the signature of the circuit design undergoing emulation during each of the N cycles. The method further includes comparing the signatures of the submodules of the reference circuit design to the signatures of the corresponding submodules of the circuit design undergoing emulation to enable root causing submodule functional failures. Optionally, each signature may computed by performing a logic function on a multitude of output signals of the circuit design.Type: GrantFiled: November 20, 2019Date of Patent: April 6, 2021Assignee: SYNOPSYS, INC.Inventor: Antti Juhana Innamaa
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Patent number: 10962581Abstract: A semiconductor integrated circuit test system can include a first semiconductor integrated circuit tester configured to conduct a first test of a first characteristic of one of a plurality of semiconductor integrated circuits, wherein the first test is completed by the first semiconductor integrated circuit tester within a first test time. A second semiconductor integrated circuit tester, can be coupled to the first semiconductor integrated circuit tester, where the second semiconductor integrated circuit tester can be configured to conduct a second test of a second characteristic of each of the plurality of the semiconductor integrated circuits simultaneously, wherein the second test is completed within a second test time that is at least about two orders of magnitude more than the first test time.Type: GrantFiled: September 19, 2019Date of Patent: March 30, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji Nyeong Yun, Jae Moo Choi, Jong Pill Park, Jae Hong Kim
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Patent number: 10949591Abstract: A method of detecting a fault in a circuit design undergoing hardware emulation, includes, in part, comparing, in each cycle K of a clock and at the hardware emulation system, the cycle K register values of a reference circuit with the cycle K register values of the circuit design undergoing emulation. The method further includes detecting, in each cycle K of the clock and at the hardware emulation system, whether a mismatch exists between the cycle K reference circuit design register values and the cycle K register values of the circuit design undergoing emulation. Alternatively the comparison may be made between the respective signatures computed from the register values. The register values of the reference circuit design for all K cycles may be transferred to the emulation system prior to emulation. Alternatively, for each cycle K, the register values may be transferred to the hardware emulation system during that cycle.Type: GrantFiled: November 20, 2019Date of Patent: March 16, 2021Assignee: SYNOPSYS, INC.Inventor: Beshara Elmufdi
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Patent number: 10948537Abstract: A sensor integrated circuit including a regulator for generating a regulated voltage includes a digital load configured to draw a load current from the regulator in response to a clock signal during in situ operation and a comparator configured to determine the absence or presence of a fault during in situ operation. The load current is less than or equal to a predetermined level in the absence of a fault and is greater than the predetermined level in the presence of a fault. The comparator is responsive to the load current and to a threshold level and is configured to generate a comparator output signal having a level indicative of whether the load current is less than or greater than the threshold level in order to thereby determine the absence or presence of a fault during in situ operation, respectively.Type: GrantFiled: January 18, 2019Date of Patent: March 16, 2021Assignee: Allegro MicroSystems, LLCInventors: Glenn A. Forrest, Thomas J. Kovalcik, Wei Zhang
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Patent number: 10949589Abstract: The independent claims of this patent signify a concise description of embodiments. A hardware emulation system is configured to define a variable delay associated with each of a multitude of design clocks used in the circuit design, compute a compression value in accordance with the multitude of variable delays, detect a change in one or more of the variable delays, and recompute the time compression value in response to the detected change. The hardware emulation system is further configured to recompute the time compression using programmable circuitry disposed in the hardware emulation system and without stopping the hardware emulation system. Such circuitry may be disposed in a single programmable device disposed in the hardware emulation system or a multitude of programmable devices disposed in the hardware emulation system. This Abstract is not intended to limit the scope of the claims.Type: GrantFiled: May 17, 2018Date of Patent: March 16, 2021Assignee: SYNOPSYS, INC.Inventors: Alexander Rabinovitch, Cedric Jean Alquier
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Patent number: 10929261Abstract: A technology is described for a device diagnosis station. The device diagnosis station may be configured to identify an electronic device physically connected to the device diagnosis station, evaluate an operational state of the electronic device by executing testing instructions configured to test the functionality of the electronic device and collect operational state information for the electronic device. The device diagnosis station may be configured to determine the operational state of the electronic device and execute recovery instructions to restore the electronic device to an improved state when a recoverable error is detected. The device diagnosis station may be configured to initiate a device return procedure for the electronic device when a non-recoverable error state is detected.Type: GrantFiled: June 25, 2018Date of Patent: February 23, 2021Assignee: Amazon Technologies, Inc.Inventors: Alex Levin, Ziv Harel, Evgeny Khanin, David Ben-Dror, Georgy Machulsky, Daniel Elkaslassy, Sergei Shtern
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Patent number: 10901033Abstract: Testing of die on wafer is achieved by; (1) providing a tester with the capability of externally communicating JTAG test signals using simultaneously bidirectional transceiver circuitry, (2) providing die on wafer with the capability of externally communicating JTAG test signals using simultaneously bidirectional transceiver circuitry, and (3) providing a connectivity mechanism between the bidirectional transceiver circuitry's of the tester and a selected group or all of the die on wafer for communication of the JTAG signals.Type: GrantFiled: December 17, 2019Date of Patent: January 26, 2021Assignee: Texas Instruments IncorporatedInventor: Lee D. Whetsel
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Patent number: 10893605Abstract: A printed circuit board includes a substrate and at least one electrical circuit provided at least partially on a surface layer of the printed circuit board. The electrical circuit includes an electrical trace that is in electrical connection with a test pad provided for accessibility on the surface layer, the test pad being sized and shaped for probing to test an aspect of the circuit, the test pad having a conductive probe surface that is structured to provide at least one vertical surface that extends from the probe surface toward the surface layer and thus providing an edge between the vertical surface and the probe surface, the probe surface having a coating of a material to protect the conductive probe surface from corrosion.Type: GrantFiled: May 28, 2019Date of Patent: January 12, 2021Assignee: Seagate Technology LLCInventors: Michael Richard Fabry, William Bradford Green
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Patent number: 10892708Abstract: Electrical component location is provided. Employed location techniques may include providing a cycling signal, having components to be located sense the cycling signal at the same time, report back the sensed signal, and determining relative locations for one or more of the components using the sensed signals reported by the components.Type: GrantFiled: February 14, 2019Date of Patent: January 12, 2021Assignee: SunPower CorporationInventors: Fernando Rodriguez, Patrick L. Chapman, Jonathan Ehlmann
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Patent number: 10886926Abstract: According to a synchronization method, a basic timing signal generation circuit generates a basic timing signal. A communication control circuit generates a first communication cycle timing signal, measures an input difference between the basic timing signal and a predetermined one of first communication cycle timing signals, divides a compensation value responsive to the input difference by the number of first communication cycle timing signals, adds up a value resulting from the division in a communication cycle, compensates for timing of generating the first communication cycle timing signal with timing equal to or greater than a predetermined value, and transmits timing compensation data to external equipment. The external equipment generates a second communication cycle timing signal, compensates for timing of generating the second communication cycle timing signal based on timing of receipt of the timing compensation data, and synchronizes with the first communication cycle timing signal.Type: GrantFiled: July 27, 2020Date of Patent: January 5, 2021Assignee: FANUC CORPORATIONInventor: Tomomasa Nakama
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Patent number: 10804170Abstract: The present disclosure relates to a method which includes generating a device layout of an eBeam based overlay (EBO OVL) structure with a minimum design rule, simulating a worst case process margin for the generated device layout of the EBO OVL structure, enabling a plurality of devices for the simulated worst case process margin for the generated device layout of the EBO OVL structure, and breaking a plurality of design rules for the enabled plurality of devices of the EBO OVL structure to generate an OVL measurement layout of the EBO OVL structure.Type: GrantFiled: March 11, 2019Date of Patent: October 13, 2020Assignee: GLOBALFOUNDRIES INC.Inventors: Hongliang Shen, Guoxiang Ning, Erfeng Ding, Dongsuk Park, Xiaoxiao Zhang, Lan Yang
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Patent number: 10789704Abstract: Methods, apparatuses, and systems for image-based abnormality detection for periodic patterns are provided. The method includes receiving an image pattern T determined from an inspection image, wherein T comprises multiple periodic segments along a spatial direction; determining, by a processor, a first reference pattern R1 by rearranging the multiple periodic segments of T in a first manner and a second reference pattern R2 by rearranging the multiple periodic segments of T in a second manner; determining whether an abnormality exists in T by comparing a part of T with a part of R1 and a part of R2; and determining that the abnormality exists in T based on a determination that the part of T is different from the part of R1 and the part of R2.Type: GrantFiled: February 20, 2019Date of Patent: September 29, 2020Assignee: Zhongke Jingyuan Electron LimitedInventors: Zhaoli Zhang, Weimin Ma, Kangkang Yang, Yan Zhao
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Patent number: 10782718Abstract: A method for automatically testing a voltage regulator, including: providing an auto-test setting to a test master, wherein the auto-test setting specifies an auto-sweep setting and a loop comprising an ordered set of serial command frames; producing, in the test master, a test suite comprising a plurality of serial command frames by executing the loop multiple times according to the auto-sweep setting until an array of a preset variable corresponding to the auto-sweep setting is traversed, wherein the preset variable is changed in each iteration of the loop; sequentially transmitting every serial command frame to the voltage regulator; and receiving every resulting behavior of the voltage regulator when operated in accordance with the every serial command frame.Type: GrantFiled: June 6, 2018Date of Patent: September 22, 2020Assignee: Hangzhou MPS Semiconductor Technology Ltd.Inventors: Wangmiao Hu, Lijie Jiang, Qian Ouyang, Qingqing Zheng, Binci Xu, Jinghai Zhou, Eric Yang
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Patent number: 10782325Abstract: A method, computer program product, and system for emulating a constant power (CP) electronic load (e-load) from a constant current (CC) e-load are disclosed. Testing metrics may be obtained for a power source to be tested, including one or more power thresholds. Further, an initial current level for a CC e-load may be obtained. The power-draw of the CC e-load connected to the power source may be determined. The determined power-draw may be compared to at least one of the one or more of the power thresholds. In response to the power-draw not satisfying the at least one power threshold, the current level of the CC e-load may be adjusted based on the power-draw and the at least one power threshold.Type: GrantFiled: April 4, 2017Date of Patent: September 22, 2020Assignee: International Business Machines CorporationInventors: Edward L. Blackwell, Adrian P. Glover, David Rico
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Patent number: 10784924Abstract: Systems and methods are described for calculating a propagation delay of a transmission line. A transmitter may transmit a signal from a first end of a transmission line to a second end of the transmission line at a first time, t1. A signal reflection device (e.g., a passive resonator) connected to the second end of the transmission line may generate a reflection at a second time, t2. A reflection detector (e.g., a matched, passive resonator) at the first end of the transmission line may receive the reflection from the signal reflection device, at a third time, t3. A propagation delay calculator may calculate the propagation delay of the transmission line as corresponding to one-half of a difference between the first time, t1, and the third time, t3.Type: GrantFiled: April 21, 2017Date of Patent: September 22, 2020Assignee: Schweitzer Engineering Laboratories, Inc.Inventor: Russell C. Carroll
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Patent number: 10784776Abstract: An isolation device provides high common mode transient immunity without increasing the supply voltage rails in the transmitter side. In one aspect, the disclosed isolation device implements a self-boosting scheme to increase a voltage swing of a transmission signal under a lesser supply voltage rail. The disclosed isolation device includes a first stage circuit, a boost circuit, and a second stage circuit. The first stage circuit is configured to generate first and second signals each having a first voltage within a supply voltage range. The boost circuit is configured to provide a boosted voltage range greater than the supply voltage range responsive to at least one of the first or second signal. The second stage circuit is configured to generate an output signal based on either one of the first or second signal, such that the output signal has a second voltage within the boosted voltage range.Type: GrantFiled: September 10, 2018Date of Patent: September 22, 2020Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Danyang Zhu, Zhidong Liu
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Patent number: 10775408Abstract: An example test system includes a test carrier to receive a device to test. The test carrier includes test components to perform at least a structural test on the device. The example test system also includes a slot to receive the test carrier. The slot includes an interface to which the test carrier connects to enable the test carrier to communicate with a system that is part of the test system or external to the test system.Type: GrantFiled: August 20, 2018Date of Patent: September 15, 2020Assignee: TERADYNE, INC.Inventors: Valquirio Nazare Carvalho, Shant Orchanian, Peter Addison Reichert
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Patent number: 10759328Abstract: Systems, methods, and computer-readable media for configuring automotive lamp illumination control are provided. One example method includes, at a computing device, generating a graphical user interface for configuring at an automotive lamp illumination pattern. The graphical user interface includes user input elements and is displayed by way of a display device. An input command is received by way of at least one of the plurality of user input elements. The input command corresponds to the at least one of the user input elements. A message is transmitted to an automotive lamp control device by way of a communication path including a first communication port of the computing device and a second communication port of the automotive lamp control device, based on the received input command. The message is received at the automotive lamp control device, and an action is performed in response to receiving the message.Type: GrantFiled: April 22, 2019Date of Patent: September 1, 2020Inventor: Joseph P. Zizzadoro
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Patent number: 10725138Abstract: A compound may include a set of integrated circuits. An integrated circuit, of the set of integrated circuits, may include calibration standards integrated at a silicon layer of the integrated circuit. The integrated circuit may be included in a package, and a calibration standard, of the calibration standards, may be available to at least one port of a set of ports of the integrated circuit.Type: GrantFiled: November 15, 2016Date of Patent: July 28, 2020Assignee: Infineon Technologies AGInventors: Christoph Wagner, Oliver Frank, Jochen Schrattenecker, Harald Kainmueller
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Patent number: 10720224Abstract: A device under test for performing built-in self-tests to determine the functionality of one or more components of the device under test is described. The device under test includes a storage location to store a set of tests for testing the device under test; a data generator to generate a test pattern based on a test in the set of tests; a transmission unit to transmit the test pattern to a test system; a receiver unit to receive a set of loopback signals from the test system, wherein the set of loopback signals represent the test pattern; and a data checker to determine success or failure of the device under test based on the set of loopback signals.Type: GrantFiled: July 18, 2018Date of Patent: July 21, 2020Assignee: MICRON TECHNOLOGY, INC.Inventors: Patrick Caraher, Michael B. Danielson
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Patent number: 10720950Abstract: Provided is an electronic device includes an interface for connection to an external device; and a processor electrically connected to the interface, wherein the at least one processor is configured to: set a first radio frequency (RF) signal port of a first chipset to operate in RF signal transmission mode, and set a second RF signal port of a second chipset to operate in RF signal reception mode; obtain an error of transmission performance of the first RF signal port based on a comparison between a designated transmission reference that is input to the first RF signal port and a characteristic of a first intermediate frequency (IF) signal that is output via the second RF signal port; obtain a first compensation value to enable the transmission performance of the first RF signal port to converge to the transmission reference, on the basis of the error of the transmission performance; and store at least one of the error of the transmission performance and the first compensation value in the first chipset viaType: GrantFiled: May 22, 2019Date of Patent: July 21, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Yongjun An, Jihoon Kim, Youngmin Lee
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Patent number: 10712383Abstract: An inspection jig includes a rigid substrate, a flexible substrate connected to the rigid substrate, a support supporting a part of the flexible substrate in a state that the part of the flexible substrate is protruded with respect to the rigid substrate in a first direction, a biasing unit configured to bias the support in the first direction with respect to the rigid substrate, and a contactor provided on a protruding portion of the flexible substrate, the protruding portion being protruded with respect to the rigid substrate. The contactor includes a contact housing, and a probe supported on the contact housing. One end of the probe is in contact with a contact portion on the protruding portion.Type: GrantFiled: November 28, 2018Date of Patent: July 14, 2020Assignee: YOKOWO CO., LTD.Inventor: Takahiro Nagata
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Patent number: 10698023Abstract: A method and device for high speed broadband testing of systems and substances using a binary, spectrally sparse sequence (SSS) as a periodic excitation waveform. The sequences with controllable frequency and magnitude spectra content are designed by component manipulation method or by edge manipulation method. The excitation waveform is typically pre-calculated, and kept in waveform memory, from where it is shifted out into digital to physical quantity converter (DQC). The sparse spectrum of the SSS makes it easy to create plenty of uncorrelated frequency sets with adjacent, but sufficiently different frequencies to form multi-path test systems, where all the paths can be measured simultaneously. The response of the sample under test (SUT) is sampled and the complex transfer function is calculated directly or indirectly via Impulse Response by Discrete Fourier Transform technique and its derivatives. The sequence bit interval and sampling interval have a predetermined ratio.Type: GrantFiled: August 30, 2012Date of Patent: June 30, 2020Assignee: Tallinn University of TechnologyInventors: Raul Land, Paul Annus, Mart Min, Olev Märtens, Jaan Ojarand