Patents Examined by Muhammad S Islam
  • Semiconductor integrated circuit, motor driver, and motor drive system
    Patent number: 11721696
    Abstract: A semiconductor integrated circuit includes first to fourth transistor arrangement regions. A portion of the third transistor arrangement region is located on a second side in a first direction of the second transistor arrangement region. A portion of the first transistor arrangement region connected to the second transistor arrangement region is sandwiched in the first direction by the second transistor arrangement region and the portion of the third transistor arrangement region. The portion of the first transistor arrangement region is located on a first side in the first direction of the fourth transistor arrangement region. The portion of the third transistor arrangement region connected to the fourth transistor arrangement region is sandwiched in the first direction by the fourth transistor arrangement region and the portion of the first transistor arrangement region.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: August 8, 2023
    Assignee: Rohm Co., Ltd.
    Inventor: Hirotaka Takihara
  • System and method for driving an ultrasonic handpiece with a linear amplifier
    Patent number: 11717853
    Abstract: A control console for a powered surgical tool. The console includes a transformer that supplies the drive signal to the surgical tool. A linear amplifier with active resistors selectively ties the ends of the transformer primary winding between ground and the open circuit state. Feedback voltages from the transformer windings regulate the resistances of the active resistors.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: August 8, 2023
    Assignee: Stryker Corporation
    Inventors: Adam D. Downey, Neal R. Butler, Scott A. Rhodes
  • Control apparatus and method of controlling the same
    Patent number: 11722078
    Abstract: A control apparatus that controls a stepping motor, comprises a determination unit configured to determine a current value to be applied to the stepping motor by looking up a first driving table, which is to be looked up when driving is to be performed in a first driving direction, and a second driving table, which is to be looked up when driving is to be performed in a second driving direction in reverse of the first driving direction. The determination unit includes an interpolation calculation unit configured to calculate the current value by interpolation calculation that looks up both the first driving table and the second driving table, in a case in which driving is to be performed in a driving direction different from a driving direction of a preceding driving operation.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: August 8, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takashi Fujinaga
  • System for adaptive bandwidth control of electric motors using frequency response analysis method
    Patent number: 11720078
    Abstract: A system comprising a processor, a non-transitory memory, and an application stored in the non-transitory memory is provided. The application is configured, upon execution by the processor, to cause the processor to generate a first controller signal based on a first set of feedback from an electric motor, based on a characterization tone, and based on a controller gain, to provide the first controller signal for operation of the electric motor, to generate a frequency response analysis on a second set of feedback from the electric motor in response to the first controller signal, and to determine a new value of the controller gain based on the frequency response analysis.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: August 8, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ramesh Tiruvannamalai Ramamoorthy, Sam Gnana Sabapathy, Manish Bhardwaj
  • Fault tolerant rotating electric machine
    Patent number: 11722026
    Abstract: The disclosed technology provides systems and methods to employ fault tolerance for rotating electric machines operating as motors or generators. A unique system architecture and control elements allow rotating electric machines the ability to isolate faulted conditions and continue to operate.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: August 8, 2023
    Assignee: DPM TECHNOLOGIES INC.
    Inventor: Jonathan Gale Ritchey
  • System and method for trajectory shaping for feasible motion commands
    Patent number: 11716047
    Abstract: A system and method for shaping the trajectory of a motion command to reduce the effects of a load on performance of a motor dynamically modifies the motion profile in real time to limit the reference signals in the motion profile to feasible commands. A load observer determines an estimated disturbance acceleration. The estimated disturbance acceleration includes the dynamics of the controlled load and is used to modify a maximum and a minimum limit for the acceleration reference. The acceleration limits are, in turn, used to determine velocity limits. The motion profile and modified acceleration and velocity limits are provided to a state filter which determines a new motion profile for use by the motor drive to control operation of a motor and to control the load connected to the motor.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: August 1, 2023
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Jonathan D. Hoffman, Brian Fast, Robert J. Miklosovic
  • Battery sensing module with temperature sensor selective disconnect
    Patent number: 11715848
    Abstract: A battery pack sensing module includes a temperature sensor input connected with a battery cell temperature sensor, an integrated circuit, and a field effect transistor connected between the temperature sensor input and the integrated circuit, and having a gate that selectively opens based on a voltage on the temperature sensor input.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: August 1, 2023
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Benjamin A. Tabatowski-Bush, Baojin Wang
  • Winding switching device and rotating electrical machine drive system using the same
    Patent number: 11716039
    Abstract: An object of the present invention is to provide a winding switching device capable of enhancing the reliability of electrical contact between a movable unit and a fixed unit, and a rotating electrical machine drive system including such a winding switching device.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: August 1, 2023
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Kazuo Nishihama, Akeshi Takahashi, Katsuhiro Hoshino, Noriyuki Maekawa
  • Method, system and apparatus for discharging DC link capacitors in power-distribution-units
    Patent number: 11716042
    Abstract: The present subject matter refers a discharge circuit for a smoothing capacitor within a power-distribution-unit. The discharge circuit comprises a first sub-circuit connected in parallel to a DC-Link capacitor, said first sub-circuit in turn comprises a series connection of a first switching element (SE) and a first discharge resistor, wherein the DC-link capacitor is connected in parallel to a power supply. A second sub-circuit is connected in parallel to the DC-Link capacitor and comprises a series connection of a second switching element (SE) and a second discharge resistor. A control device is configured to control the plurality of SEs within the sub-circuits by scheduling switching of the plurality of SEs. Such scheduling comprises switching ON of the second SE after a switching ON of the first SE for enabling a discharging of the DC link capacitor within a predetermined duration.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: August 1, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Max Richter, Eike Meints
  • Servo motor device, and control method
    Patent number: 11707850
    Abstract: An objective of the present invention is to reduce the downtime which occurs when changing a servo motor device. A servo motor device includes a motor section and a reduction gear configured to output a driving force by reducing a speed of rotation of the motor section, wherein a control device includes a detecting section configured to acquire detected information about operation of the motor section, and a computing section configured to generate an approximate curve based on a behavior for a time sequence of a parameter and to calculate predicted lifetime information of the servo motor device based on the approximate curve thus generated, wherein the parameter has been calculated by means of the detected information.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: July 25, 2023
    Assignees: Futaba Corporation, Chiba Institute of Technology
    Inventors: Shotaro Kudo, Yasuyuki Suzuki, Toru Kono, Ryosei Kuramoto, Hidetoshi Muramatsu, Takayuki Furuta, Masaharu Shimizu, Hideaki Yamato
  • Parameter monitoring and control for an electric driven hydraulic fracking system
    Patent number: 11708733
    Abstract: An electric driven hydraulic fracking system is disclosed. A pump configuration includes the single VFD, the single shaft electric motor, and the single hydraulic pump mounted on the single pump trailer. A controller associated with the single VFD and is mounted on the single pump trailer. The controller monitors operation parameters associated with an operation of the electric driven hydraulic fracking system as each component of the electric driven hydraulic fracking system operates to determine whether the operation parameters deviate beyond a corresponding operation parameter threshold. Each of the operation parameters provides an indicator as to an operation status of a corresponding component of the electric driven hydraulic fracking system. The controller initiates corrected actions when each operation parameter deviates beyond the corresponding operation threshold.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: July 25, 2023
    Assignee: National Service Alliance—Houston LLC
    Inventors: John Fischer, John J. Crosetto, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman, David Todd, Tyler Nolen
  • Electric power conversion control apparatus
    Patent number: 11711043
    Abstract: An electric power conversion control apparatus includes: a first converter of the first electric power conversion control apparatus and a second converter of the second electric power conversion control apparatus, which feed electric power to a first winding wire and a second winding wire of a dual three-phase motor; a first controller and a second controller, which control the first converter and the second converter; a communication line, which is connected between the first controller and the second controller; and a fifth signal wire for deactivating the operation of the second converter, from the first controller. When a fault is caused by communication errors, the first controller uses the fifth signal wire to deactivate the operation of the second converter, and the electric power conversion control apparatus switches to one system operation by the first controller.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: July 25, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventor: Chiharu Morisaki
  • Game controller with vibration accuators
    Patent number: 11707765
    Abstract: A game controller including a housing with a first handgrip and a second handgrip is provided. The game controller includes a first vibration actuator integrated within the housing proximate to the first handgrip. Further included is a second vibration actuator integrated within the housing proximate to the second handgrip. A controller device is included and is configured to communicate one or more vibrational signals to one or both of the first vibration actuator and the second vibration actuator. The vibrational signals are configured to cause the housing of the game controller to vibrate in a vibrational pattern during use of the controller. The vibrational pattern is one of a plurality of vibrational patterns, and one or more of the plurality of vibration patterns are activated in correlation to one or more game actions occurring during gameplay of a video game using the game controller.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: July 25, 2023
    Assignee: Sony Interactive Entertainment LLC
    Inventors: Nathan Delson, John Houston
  • Electric tool and method for controlling startup thereof
    Patent number: 11705831
    Abstract: An electric tool includes a drive structure, a motor, a driver circuit, and a controller. The controller is configured to output a first control signal to control the motor to drive the drive structure to operate in a first operation mode for a preset period of time in response to receiving a start instruction. After the preset period of time, the controller will output a second control signal to control the motor to drive the drive structure to operate in a second operation mode to a preset state. The first operation mode and the second operation mode are two opposite operation modes.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: July 18, 2023
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Jifeng Feng, Jian Zhang
  • Image capturing apparatus, method for controlling the same, and storage medium
    Patent number: 11700453
    Abstract: An image capturing apparatus to perform pan-tilt driving includes a detection unit, an obtaining unit, and a setting unit. The detection unit detects a movable range end in a case where the pan-tilt driving is performed. The obtaining unit obtains information about a speed of the pan-tilt driving in a case where the movable range end is detected by the detection unit. The setting unit sets a reference position according to the driving speed information obtained by the obtaining unit.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: July 11, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventor: Soichiro Shigeeda
  • Security mechanisms for electric motors and associated systems
    Patent number: 11697392
    Abstract: The present disclosure relates to security mechanisms for electric motors and associated systems. For example, the present technology includes a powertrain assembly having (1) a motor having multiple sets of coils; (2) a drive circuitry electrically coupled to the multiple sets of coils; and (3) a security unit electrically coupled to the drive circuitry and the multiple sets of coils. The security unit is configured to short-circuit at least one set of the multiple sets of coils responsive to a signal from a controller. The signal indicates that the motor is, or has been, turned off.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: July 11, 2023
    Assignee: Gogoro Inc.
    Inventors: Shih-Yuan Lin, Yu-Se Liu, Liang-Yi Hsu
  • Robotic welding system
    Patent number: 11691228
    Abstract: A robotic welding system comprises a supporting arm for attaching to a repositionable support structure, the supporting arm comprising a first mounting portion connectable to the repositionable support structure, and a second mounting portion rotatably coupled to the first mounting portion. A yaw rotary actuator rotates the second mounting portion about a yaw axis. A welding arm comprises a third mounting portion rotatably coupled to the second mounting portion of the supporting arm. A pitch rotary actuator rotates the third mounting portion about a pitch axis generally perpendicular to the yaw axis. A roll rotary actuator rotates a torch holder shaft about a roll axis generally perpendicular to the pitch axis. The shaft has a torch mounting portion for mounting a welding torch at an end thereof. A controller is operably coupled to the actuators to cause the welding torch to execute a welding pattern.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: July 4, 2023
    Assignee: Novarc Technologies Inc.
    Inventors: Abdolreza Abdollahi, Hassan Bateni, Soroush Karimzadeh
  • Motor drive circuit for motor and robot system
    Patent number: 11691272
    Abstract: A motor drive circuit for a robot includes a switching unit switching among a normal state in which regenerative power is supplied to a regenerative capacitor, a first state in which a voltage is applied to a first resistor, and a second state in which a voltage is applied to the first resistor and a second resistor based on a detection result of a detection unit, wherein the switching unit switches to the first state when the voltage applied to the regenerative capacitor detected in the detection unit is equal to or larger than a first threshold in the normal state, and switches to the second state when the voltage applied to the first resistor is equal to or larger than a second threshold larger than the first threshold in the first state.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: July 4, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Junpei Nakayama
  • Paint sprayer with dynamic pulse width modulation driven motor
    Patent number: 11689129
    Abstract: A fluid sprayer includes a housing, a pump, a nozzle, a high voltage direct current (HVDC) brushed electric motor that drives the pump, and a motor controller electrically connected to the motor. The motor controller drives the motor with a high speed pulse width modulated (PWM) drive signal that switches current through the motor on and off. The motor controller varies the PWM signal as a function of a spray setting input and sensed current through the motor.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: June 27, 2023
    Assignee: Graco Minnesota Inc.
    Inventor: Tyler J. Kruzel
  • Auxiliary energy circuit for battery-powered power tool
    Patent number: 11689050
    Abstract: A power tool comprising a housing, an interface configured to receive a battery pack, a trigger for user control of power tool operation, at least one sensor configured to measure an operational characteristic of the power tool, and a controller. The controller is configured to receive a control signal from the trigger, control the power tool in response to the control signal, receive power tool operational data from the at least one sensor indicative of the operational characteristic of the power tool, and provide additional energy to the power tool via an auxiliary energy supply within the power tool housing based on the operational characteristic of the power tool.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: June 27, 2023
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: William Varian, Aditya Subramanian, Ryan B. Jipp, Samuel Sheeks