Patents by Inventor Jianzhou Chen

Jianzhou Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11626718
    Abstract: A motor drive apparatus includes a bus bar through which a current associated with motor driving flows, a printed circuit board, and a conductive support pedestal mounted on the printed circuit board and interposed between the bus bar and the printed circuit board, wherein the conductive support pedestal includes at least one hole for screw passing configured to fasten the bus bar and the conductive support pedestal with screw tightening, and a terminal unit for a printed circuit board configured to electrically connect an electric wire provided in the printed circuit board to the conductive support pedestal.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: April 11, 2023
    Assignee: Fanuc Corporation
    Inventors: Hironao Tanouchi, Jianzhou Chen
  • Patent number: 11451104
    Abstract: A motor drive apparatus includes: a power device constituting a portion of a power conversion circuit for generating electric power for driving a motor and having input/output terminals; a printed wiring board having a hole; a bus bar connected to both of the power device and the printed wiring board, wherein the bus bar includes a first plate-like connector portion to be fixed to the input/output terminal, a second connector portion to be connected to the printed wiring board, and an extension portion extending between the first connector portion and the second connector portion that will pass through the hole.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: September 20, 2022
    Assignee: Fanuc Corporation
    Inventors: Hironao Tanouchi, Jianzhou Chen
  • Publication number: 20210194231
    Abstract: A motor drive apparatus includes a bus bar through which a current associated with motor driving flows, a printed circuit board, and a conductive support pedestal mounted on the printed circuit board and interposed between the bus bar and the printed circuit board, wherein the conductive support pedestal includes at least one hole for screw passing configured to fasten the bus bar and the conductive support pedestal with screw tightening, and a terminal unit for a printed circuit board configured to electrically connect an electric wire provided in the printed circuit board to the conductive support pedestal.
    Type: Application
    Filed: November 24, 2020
    Publication date: June 24, 2021
    Applicant: Fanuc Corporation
    Inventors: Hironao Tanouchi, Jianzhou Chen
  • Patent number: 11043872
    Abstract: A motor driving device includes: a printed circuit board; a surface mounted component group of multiple surface mounted components surface-mounted on a printed surface of the printed circuit board; a heat-generating component group of multiple heat-generating components that generate an amount of heat equal to or larger than a predetermined amount, the heat-generating component group being provided on the printed surface side of the printed circuit board; a fan configured to blow air to the heat-generating component group to thereby cool the heat-generating components; and a cover configured to block flow of air blown by the fan so that the air blown by the fan will not flow to the surface mounted components.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: June 22, 2021
    Assignee: FANUC CORPORATION
    Inventors: Jianzhou Chen, Naoki Masuda, Shinichi Mizukami
  • Publication number: 20210066985
    Abstract: A motor drive apparatus includes: a power device constituting a portion of a power conversion circuit for generating electric power for driving a motor and having input/output terminals; a printed wiring board having a hole; a bus bar connected to both of the power device and the printed wiring board, wherein the bus bar includes a first plate-like connector portion to be fixed to the input/output terminal, a second connector portion to be connected to the printed wiring board, and an extension portion extending between the first connector portion and the second connector portion that will pass through the hole.
    Type: Application
    Filed: August 12, 2020
    Publication date: March 4, 2021
    Applicant: Fanuc Corporation
    Inventors: Hironao Tanouchi, Jianzhou Chen
  • Patent number: 10832295
    Abstract: An amplifier selection device includes: a storage configured to store identification information and specifications of motor and amplifier; a display controller configured to display a motor selection command input section and a motor list; a motor selector configured to select a motor in accordance with a selection command; an amplifier selector configured to select an amplifier that satisfies specifications of a motor; an accessory information storage configured to store identification information of an accessory, identification information of an amplifier compatible with the accessory, and supplementary information; an accessory selector configured to select an accessory compatible with a selected amplifier by referring to the accessory information storage; and an accessory list display controller configured to display an accessory list of a selected accessory; wherein the display controller is configured to display a wiring diagram including the selected accessory, an amplifier, and a motor connected toge
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: November 10, 2020
    Assignee: FANUC CORPORATION
    Inventor: Jianzhou Chen
  • Patent number: 10715422
    Abstract: In one embodiment, a parent network device, operating according to a first Trickle operation using a first selected minimum contention interval, responds to detecting a loss of attached child network devices by starting a second Trickle operation using a second selected minimum contention interval. The second Trickle operation includes maintaining the second selected minimum contention interval for subsequent iterations of the second Trickle operation. The parent network device initiates an accelerated transmission rate of the advertisement message that is faster than the first and second Trickle operations (using a third selected minimum contention interval less than the first minimum contention interval) in response to receiving a message from one of the lost child network devices, and resumes the first Trickle operation upon recovery of all the lost child network devices.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: July 14, 2020
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Pascal Thubert, Jianzhou Chen, Huimin She, Patrick Wetterwald
  • Patent number: 10687413
    Abstract: A motor driving device includes a control circuit board provided with a control circuit configured to output a control signal of a secondary voltage and a power circuit board provided with power circuitry to which a primary voltage higher than the secondary voltage is applied. The power circuit board includes a first substrate provided with a primary voltage component group to which only the primary voltage is applied, and a second substrate provided with a converter component group configured to convert the primary voltage into the secondary voltage and convert the secondary voltage into the primary voltage.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: June 16, 2020
    Assignee: FANUC CORPORATION
    Inventors: Jianzhou Chen, Naoki Masuda, Shinichi Mizukami
  • Publication number: 20200014618
    Abstract: In one embodiment, a parent network device, operating according to a first Trickle operation using a first selected minimum contention interval, responds to detecting a loss of attached child network devices by starting a second Trickle operation using a second selected minimum contention interval. The second Trickle operation includes maintaining the second selected minimum contention interval for subsequent iterations of the second Trickle operation. The parent network device initiates an accelerated transmission rate of the advertisement message that is faster than the first and second Trickle operations (using a third selected minimum contention interval less than the first minimum contention interval) in response to receiving a message from one of the lost child network devices, and resumes the first Trickle operation upon recovery of all the lost child network devices.
    Type: Application
    Filed: July 3, 2018
    Publication date: January 9, 2020
    Inventors: PASCAL THUBERT, JIANZHOU CHEN, HUIMIN SHE, PATRICK WETTERWALD
  • Patent number: 10498632
    Abstract: A network device receives a data packet sourced from a root of a tree-based topology and including a data structure identifying transmitted data packets transmitted by the root; in response to determining one or more absent transmitted data packets based on the data structure, the network device starts a deferred transmission timer requiring the network device to wait a first half of a selected minimum contention interval before attempting transmission to a parent at a randomized position within a second half of the selected minimum contention interval, the selected minimum contention interval based on the distance to the root and at least twice that of the parent; the network device selectively transmits a control message to the parent to request the absent transmitted data packets only if, upon reaching the corresponding randomized position of the deferred transmission timer, the network device has not received the absent transmitted data packets.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: December 3, 2019
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Jianzhou Chen, Pascal Thubert, Huimin She, Feiliang Wang, Chuanwei Li
  • Publication number: 20190342204
    Abstract: A network device receives a data packet sourced from a root of a tree-based topology and including a data structure identifying transmitted data packets transmitted by the root; in response to determining one or more absent transmitted data packets based on the data structure, the network device starts a deferred transmission timer requiring the network device to wait a first half of a selected minimum contention interval before attempting transmission to a parent at a randomized position within a second half of the selected minimum contention interval, the selected minimum contention interval based on the distance to the root and at least twice that of the parent; the network device selectively transmits a control message to the parent to request the absent transmitted data packets only if, upon reaching the corresponding randomized position of the deferred transmission timer, the network device has not received the absent transmitted data packets.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 7, 2019
    Inventors: JIANZHOU CHEN, PASCAL THUBERT, HUIMIN SHE, FEILIANG WANG, CHUANWEI LI
  • Patent number: 10419293
    Abstract: A network device stores in its nonvolatile memory, in response to detecting a power outage in a tree-based network, an identifier for a preferred parent and a distance identifier for the network device within the network. In response to power restoration, the network device starts a trickle timer based on the ring identifier, for determining whether a beacon request from a transmitting node and destined for the preferred parent is detected during the waiting interval. In response to the network device detecting the beacon request during the waiting interval, the network device sets its channel hopping schedule to the corresponding channel hopping schedule of the transmitting node in response to determining the beacon request is destined for the preferred parent, enabling rejoining with the preferred parent in response to detecting a beacon from the preferred parent to the transmitting node via the corresponding channel hopping schedule of the transmitting node.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: September 17, 2019
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Huimin She, Jianzhou Chen, Chuanwei Li, Pascal Thubert
  • Publication number: 20190280551
    Abstract: A motor driving device includes: a printed circuit board; a surface mounted component group of multiple surface mounted components surface-mounted on a printed surface of the printed circuit board; a heat-generating component group of multiple heat-generating components that generate an amount of heat equal to or larger than a predetermined amount, the heat-generating component group being provided on the printed surface side of the printed circuit board; a fan configured to blow air to the heat-generating component group to thereby cool the heat-generating components; and a cover configured to block flow of air blown by the fan so that the air blown by the fan will not flow to the surface mounted components.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 12, 2019
    Applicant: FANUC CORPORATION
    Inventors: Jianzhou Chen, Naoki Masuda, Shinichi Mizukami
  • Publication number: 20190281694
    Abstract: A motor driving device includes a control circuit board provided with a control circuit configured to output a control signal of a secondary voltage and a power circuit board provided with power circuitry to which a primary voltage higher than the secondary voltage is applied. The power circuit board includes a first substrate provided with a primary voltage component group to which only the primary voltage is applied, and a second substrate provided with a converter component group configured to convert the primary voltage into the secondary voltage and convert the secondary voltage into the primary voltage.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 12, 2019
    Applicant: FANUC CORPORATION
    Inventors: Jianzhou Chen, Naoki Masuda, Shinichi Mizukami
  • Patent number: 10412010
    Abstract: In one embodiment, a network device starts a deferred discovery that defers to a prescribed transmission operation in response to detecting a message is from an identified higher device that is closer to a root of a network topology in a data network. The prescribed transmission operation and the deferred discovery each require a corresponding network device to wait at least a first half of a selected minimum contention interval before attempting transmission at a randomized position within a second half of the selected minimum contention interval. The minimum contention interval of the deferred discovery is at least twice the selected minimum contention interval. The network device transmits an updated message during the deferred discovery only if, upon reaching the corresponding randomized position of the deferred discovery, the subsequent messages from identified higher devices are less than a prescribed redundancy constant.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: September 10, 2019
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Pascal Thubert, Patrick Wetterwald, Huimin She, Jianzhou Chen
  • Publication number: 20190095966
    Abstract: An amplifier selection device includes: a storage configured to store identification information and specifications of motor and amplifier; a display controller configured to display a motor selection command input section and a motor list; a motor selector configured to select a motor in accordance with a selection command; an amplifier selector configured to select an amplifier that satisfies specifications of a motor; an accessory information storage configured to store identification information of an accessory, identification information of an amplifier compatible with the accessory, and supplementary information; an accessory selector configured to select an accessory compatible with a selected amplifier by referring to the accessory information storage; and an accessory list display controller configured to display an accessory list of a selected accessory; wherein the display controller is configured to display a wiring diagram including the selected accessory, an amplifier, and a motor connected toge
    Type: Application
    Filed: August 1, 2018
    Publication date: March 28, 2019
    Inventor: Jianzhou CHEN
  • Patent number: 8423344
    Abstract: The present invention provides at least a method and system for forecasting usage costs and computer capacity. With respect to the present invention, performance data and information related to transactions collected from computing devices are used to calculate correlations. A cost-allocation factor is calculated to determine the computer's usage costs without a long manual analysis of large volumes of data and extensive testing. Performance data and transaction data are used to forecast computer capacity.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: April 16, 2013
    Assignee: Sprint Communications Company L.P.
    Inventors: Dean Lee Saghier, Richard Michael Wyett, Jianzhou Chen
  • Patent number: 7996332
    Abstract: The present invention provides at least a method and system for forecasting usage costs and computer capacity. With respect to the present invention, performance data and information related to transactions collected from computing devices are used to calculate correlations. A cost-allocation factor is calculated to determine the computer's usage costs without a long manual analysis of large volumes of data and extensive testing. Performance data and transaction data are used to forecast computer capacity.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: August 9, 2011
    Assignee: Sprint Communications Company L.P.
    Inventors: Dean Lee Saghier, Richard Michael Wyett, Jianzhou Chen
  • Patent number: 7890473
    Abstract: The present invention provides methods and systems for evaluating the performance of a computer system to enable capacity planning. With respect to the present invention, performance data (metrics) collected from computing devices are used to generate performance results. A set of utilization factors are calculated to forecast computing needs without a long manual analysis of large volumes of data. A user has access to a graphical representation of the utilization factors to determine a forecast of capacity needs based on the information calculated.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: February 15, 2011
    Assignee: Sprint Communications Company L.P.
    Inventors: Richard Michael Wyett, Jianzhou Chen, Dean Lee Saghier
  • Patent number: 7676032
    Abstract: A call-transaction forecasting tool taking the form of a computer-implemented method and medium in some embodiments is provided for retrieving, aggregating, sorting, and determining one or more maximum transactions within a communications network. The tool automates the process of manually extracting and analyzing call transactions pertaining to call-duration, call volume, traffic usage, bandwidth usage, processing usage and memory usage in order to properly forecast and predict future network growth and capacity within a providers network. The computer-implemented method includes retrieving transaction data files from a switch or server, merging the files in a commonly shared data structure, identifying one or more maximum transaction counts based upon an associated period of time, and displaying the maximum counts and associated period of time.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: March 9, 2010
    Assignee: Sprint Communications Company L.P.
    Inventors: Bruce Allen Mark, Richard Michael Wyett, Jianzhou Chen, Dean Lee Saghier