Patents Examined by David S Luo
  • Patent number: 10234831
    Abstract: A control command resolution adjustment method and a command generation device are disclosed in present invention. The control command resolution adjustment method is used to adjust a control command form the command generation device. A calculation frequency value via the command generation device is analyzed. The control command is received and a transform frequency value via the control command is analyzed. A first resolution value is calculated from the calculation frequency value and the transform frequency value. The first resolution value is distinguished greater than or equal to a minimum resolution value. When the first resolution value less than the minimum resolution value, an added calculation frequency value is calculated from the calculation frequency value and a frequency added value. A second resolution value is calculated from the added calculation frequency value and the transform frequency value.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: March 19, 2019
    Assignee: TECO ELECTRIC & MACHINERY CO., LTD.
    Inventors: Chia-Jen Lin, Feng-Chieh Lin
  • Patent number: 10236814
    Abstract: A motor controller includes an inverter including circuitry which supplies power to a motor, and a controller including circuitry which controls the inverter such that the circuitry of the inverter supplies an AC current to a first axis of a stationary orthogonal coordinate system in the motor while changing a frequency of the AC current. The first axis has a predetermined phase relationship with a phase voltage of the motor.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: March 19, 2019
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventor: Takahiro Saeki
  • Patent number: 10227812
    Abstract: An opening and closing body control device for a vehicle includes a drive control portion operating a drive control of an opening and closing body by controlling an operation of a drive device, an information communication portion acquiring control information being used for the drive control by a network communication, and a communication state determination portion determining whether the network communication is established. The drive control portion operates a retention control of the opening and closing body in order to retain the opening and closing body at a moved position in a case where the network communication is not established.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: March 12, 2019
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takashi Kaino, Hirotoshi Nakamura, Yasuhiro Awata
  • Patent number: 10230322
    Abstract: A system in package encloses a sensor and motor driver circuit. In an implementation, the sensor is an integrated circuit micro-electro-mechanical-systems (MEMS) sensor and the driver circuit is a motor driver circuit. Non-motor winding data information is sensed by the MEMS sensor and processed for the purpose of characterizing known fault patterns for motors; characterizing normal operation of the motor; and evaluating continued operation of the motor to detect abnormal motor behavior and instances of motor fault. The motor is driven using PWM control and the information output by the MEMS sensor is sampled at sampling times having a fixed timing relationship relative to the PWM control signals.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: March 12, 2019
    Assignee: STMicroelectronics, Inc.
    Inventors: Cheng Peng, Robert Krysiak
  • Patent number: 10218296
    Abstract: Implementations of methods for sensing rotor positions of a motor may include coupling a controller with a PMSM and applying, using the controller, a plurality of vectors to the PMSM, the plurality of vectors including a plurality of dummy vectors and a plurality of measured vectors, wherein at least one measured vector is applied quadrature to a dummy vector from the plurality of dummy vectors immediately preceding each measured vector. The method may also include measuring, with a measurement circuit, a plurality of values from a three-phase inverter coupled with the PMSM, each value of the plurality of values corresponding with one of the plurality of measured vectors, and calculating, with one or more logic elements coupled with the PMSM, based on the plurality of values and using one or more position algorithms, a position of a rotor of the PMSM relative to a stator of the PMSM.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: February 26, 2019
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Masanori Okubayashi, Kazumasa Takai
  • Patent number: 10206844
    Abstract: A lower extremity orthosis, including at least one actuator configured to control a motion of at least one joint of a person wearing the orthosis, is provided with a handle including a force sensor configured to produce a signal representing a force applied to the handle. A controller, which is in communication with the force sensor and the at least one actuator, is configured to modify the motion based on the signal from the force sensor. The system can be particularly employed to enable a physical therapist to have input in controlling and modifying the positions and/or forces prescribed by the lower extremity orthosis during rehabilitation of the person.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: February 19, 2019
    Assignee: Ekso Bionics, Inc.
    Inventors: Kurt Amundson, Nathan Harding, James Stryker
  • Patent number: 10200030
    Abstract: A circuit includes first and second half bridges, a first inductor, a second inductor, and a main inductor. The half bridges each include a high side switch, a low side switch, and a gate driver configured to apply switching signals to the high side switch and the low side switch. The first inductor has one side electrically connected to an output node of the first half bridge between the high side switch and the low side switch. The second inductor has one side electrically connected to an output node of the second half bridge between the high side switch and the low side switch. The main inductor is coupled to a node between the other sides of the first and second inductors. The main inductor has a greater inductance than each of the first and second inductors, and the first and second inductors are inversely coupled to one another.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: February 5, 2019
    Assignee: Transphorm Inc.
    Inventor: Zhan Wang
  • Patent number: 10185274
    Abstract: A motor connection detecting device includes: a bipolar stepping motor; a motor driver adapted to control current to be supplied to the bipolar stepping motor; and a controller connected to the bipolar stepping motor and the motor driver. The controller detects voltage of regenerative current generated during motor ON time in which current flows in the bipolar stepping motor, and determines abnormal connection of the bipolar stepping motor. The detected voltage is voltage generated during a fast decay period according to a current attenuation method of the regenerative current.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: January 22, 2019
    Assignee: Ricoh Company Ltd.
    Inventors: Hiroshi Okamura, Tomohide Kondoh, Hayato Fujita
  • Patent number: 10183578
    Abstract: A method of calibrating and controlling a gauge, to which a stepper motor is applied in a cluster of hybrid electric vehicle (HEV), includes: receiving information corresponding to an operation state of an electric motor from a certain controller; and controlling a gauge angle indicated by a needle of the gauge to correspond to a target gauge angle indicated by the received information. The step of controlling includes: setting a dropping flag when the target gauge angle is lower than a previous gauge angle; and calibrating the target gauge angle to drop by a reference angle when the target gauge angle corresponds to an angle value that is different from a lowest point of the gauge while setting the dropping flag.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: January 22, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Kang Ho Lee
  • Patent number: 10175658
    Abstract: Methods and apparatus are provided for controlling a movement of a sensor platform. The method includes receiving a desired position of the platform from a source. The desired position includes a first coordinate value and a second coordinate value. The method includes, based on the first coordinate value and the second coordinate value, calculating, by a processor, a first value associated with a first axis of rotation of the platform and calculating a second value associated with a second axis of rotation of the platform. The method includes outputting, by the processor, one or more control signals to at least one motor associated with the platform to move the platform based on the first value and the second value.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: January 8, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Yung-Chang Ko
  • Patent number: 10177693
    Abstract: A motor drive device determines whether or not a combination of logic levels of sensor signals S1 to S3 is normal, whenever the logic levels of the sensor signals S1 to S3 are changed. Each of the sensor signals S1 to S3 indicates a rotation position of a rotor. When the combination is not normal, the number of the level changes in each of the sensor signals S1 to S3 is counted. When the count value of any one of the sensor signals reaches a threshold value Cth, supply of power to a motor is stopped.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: January 8, 2019
    Assignee: ROHM CO., LTD.
    Inventor: Yohei Takayama
  • Patent number: 10156093
    Abstract: A headrail for a motorized window covering is described that includes a motor and a gearbox coupled to the motor that is configured to actuate a window covering. The headrail includes a safety detector with one or more sensors that detect an irregular strain when the window covering is being raised. The headrail may further comprise a recoil mechanism or a deactivation mechanism to reduce the likelihood of damage to the window coverings and/or individuals caught or tangled in the window covering.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: December 18, 2018
    Assignee: Hall Labs LLC
    Inventors: David R. Hall, Emily Brimhall, Austin Carlson, Mark Madsen, Lloyd J. Wilson
  • Patent number: 10158315
    Abstract: This invention is concerning a controller for an AC rotating machine, this controller having an estimated sum current computing unit configured to output, as estimated sum current, a sum of current of a first winding and current of a second winding when it is determined that the current of the first winding can be detected, and maintain the estimated sum current which has been outputted as a previous value when it is determined that the current of the first winding cannot be detected. When it is determined that the current of the first winding cannot be detected, a first voltage command for the first winding is computed based on an estimated current value of the first winding, which has been calculated by subtracting the current of the second winding detected by the second current detector, from the estimated sum current output from the estimated sum current computing unit.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: December 18, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Akira Furukawa, Tatsuya Mori
  • Patent number: 10158316
    Abstract: A motor control apparatus includes an AC-DC converter, an auxiliary power source, and an inverter. The AC-DC converter converts AC power into DC power and feeds the DC power to a DC bus bar. DC power is fed from the auxiliary power source to the DC bus bar and from the DC bus bar to the auxiliary power source. The inverter converts the DC power of the DC bus bar into the AC power and feeds the AC power to a motor. The auxiliary power source includes a capacitor, a DC-DC converter, and circuitry. The DC-DC converter performs conversion between a first DC voltage of the DC bus bar and a second DC voltage applied between both terminals of the capacitor or inside of the capacitor. The circuitry is configured to control the DC-DC converter to maintain positive correlation between the second DC voltage and the first DC voltage.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: December 18, 2018
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Mitsujiro Sawamura, Yasuhiko Kaku
  • Patent number: 10158317
    Abstract: In a control apparatus for an alternating current (AC) motor, a control mode switching determiner compares a modulation rate with a modulation rate threshold, and selects between a synchronous control mode to perform synchronous control in a range where the modulation rate is equal to or greater than a modulation rate threshold and an asynchronous control mode to perform asynchronous control in a range where the modulation rate is less than the modulation rate threshold. The control mode switching determiner uses a different modulation rate threshold in a low rotational speed range and a high rotational speed range such that the modulation rate threshold in the low rotational speed range is greater than the modulation rate threshold in the high rotational speed range. A selector selects between outputting the synchronous pulse signal and outputting the asynchronous pulse signal.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: December 18, 2018
    Assignee: DENSO CORPORATION
    Inventor: Taizo Kondo
  • Patent number: 10149728
    Abstract: The invention concerns a module for guiding an elongate medical part along an elongation axis for a robotic system comprising: mobile apparatus mounted so as to rotate relative to a base about a rotational axis, and defining a space for receiving the elongate medical part, and comprising a rotational guiding system comprising a passage region for the elongate medical part corresponding to the location of the passage of the elongate medical part through the mobile apparatus, and a plurality of rotary guiding portions distributed about the rotational axis, and access aperture comprising an angular aperture of at least 30┬░.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: December 11, 2018
    Assignee: ROBOCATH
    Inventors: Philippe Bencteux, S├ębastien Deboeuf, Jacques Marignier
  • Patent number: 10152026
    Abstract: An electronic device including: a calculation unit configured to generate a signal representative of a physical magnitude, for a motor driving a display device, the motor including two terminals, one positive and one negative, via which the calculation unit controls the motor; at least one shock detection circuit connected between the calculation unit and one terminal of the motor for detection of an external shock applied to the motor. The shock detection circuit includes a comparison part comparing an induced voltage generated in the motor following a shock to a predetermined reference voltage to identify a shock, and a selection part.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: December 11, 2018
    Assignee: EM Microelectronic-Marin SA
    Inventors: Yves Godat, Nicolas Jeannet
  • Patent number: 10149732
    Abstract: Various exemplary surgical tool and robotic surgical system interfaces are provided. In general, a sterile barrier can be positioned between a robotic surgical system and a surgical tool releasably coupled to the robotic surgical system. The surgical tool can be in a sterile environment on one side of the sterile barrier, and the robotic surgical system can be in a non-sterile environment on the other, opposite side of the sterile barrier. The robotic surgical system can be configured to control movement of the surgical tool releasably coupled thereto using a magnetic field that extends across the sterile barrier between the surgical tool and the robotic surgical system.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 11, 2018
    Assignee: Ethicon LLC
    Inventors: Mark D. Overmyer, Jeffrey S. Swayze, Frederick E. Shelton, IV, Jason L. Harris, Joshua Young, David C. Yates, Kevin L. Houser
  • Patent number: 10149727
    Abstract: Various exemplary surgical tool and robotic surgical system interfaces are provided. In general, a sterile barrier can be positioned between a robotic surgical system and a surgical tool releasably coupled to the robotic surgical system. The surgical tool can be in a sterile environment on one side of the sterile barrier, and the robotic surgical system can be in a non-sterile environment on the other, opposite side of the sterile barrier. The robotic surgical system can be configured to control movement of the surgical tool releasably coupled thereto using a magnetic field that extends across the sterile barrier between the surgical tool and the robotic surgical system.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 11, 2018
    Assignee: Ethicon LLC
    Inventors: Mark D. Overmyer, Jeffrey S. Swayze, Frederick E. Shelton, IV, Jason L. Harris, Joshua Young, David C. Yates, Kevin L. Houser
  • Patent number: 10143524
    Abstract: Systems and methods are provided for coupling a robotic surgical tool with a tool driver of a robotic surgical system via a sterile barrier disposed between the tool and the driver. The tool has an elongate shaft and an end effector coupled thereto, as well as a mating interface member having a plurality of independently movable portions and a plurality of coupling features disposed about a perimeter of an outer wall of the mating interface member. The coupling features are configured to reversibly engage with a proximal end of a corresponding actuation member from a plurality of actuation members of the tool driver. The coupling features reversibly engage with the proximal ends of the actuation members so as to allow the actuation members to move in proximal and distal directions independently from one another to thereby control operation of the end effector.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: December 4, 2018
    Assignee: Ethicon LLC
    Inventors: Robert L. Koch, Jeffery Kirk, Andrew Beckman, Jeffrey S. Swayze, Mark D. Overmyer, Eric W. Thompson, Kenneth Miller