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).
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Patent number: 11626718Abstract: 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: GrantFiled: November 24, 2020Date of Patent: April 11, 2023Assignee: Fanuc CorporationInventors: Hironao Tanouchi, Jianzhou Chen
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Patent number: 11451104Abstract: 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: GrantFiled: August 12, 2020Date of Patent: September 20, 2022Assignee: Fanuc CorporationInventors: Hironao Tanouchi, Jianzhou Chen
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Publication number: 20210194231Abstract: 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: ApplicationFiled: November 24, 2020Publication date: June 24, 2021Applicant: Fanuc CorporationInventors: Hironao Tanouchi, Jianzhou Chen
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Patent number: 11043872Abstract: 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: GrantFiled: March 7, 2019Date of Patent: June 22, 2021Assignee: FANUC CORPORATIONInventors: Jianzhou Chen, Naoki Masuda, Shinichi Mizukami
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Publication number: 20210066985Abstract: 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: ApplicationFiled: August 12, 2020Publication date: March 4, 2021Applicant: Fanuc CorporationInventors: Hironao Tanouchi, Jianzhou Chen
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Patent number: 10832295Abstract: 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 togeType: GrantFiled: August 1, 2018Date of Patent: November 10, 2020Assignee: FANUC CORPORATIONInventor: Jianzhou Chen
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Patent number: 10715422Abstract: 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: GrantFiled: July 3, 2018Date of Patent: July 14, 2020Assignee: CISCO TECHNOLOGY, INC.Inventors: Pascal Thubert, Jianzhou Chen, Huimin She, Patrick Wetterwald
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Patent number: 10687413Abstract: 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: GrantFiled: March 11, 2019Date of Patent: June 16, 2020Assignee: FANUC CORPORATIONInventors: Jianzhou Chen, Naoki Masuda, Shinichi Mizukami
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Publication number: 20200014618Abstract: 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: ApplicationFiled: July 3, 2018Publication date: January 9, 2020Inventors: PASCAL THUBERT, JIANZHOU CHEN, HUIMIN SHE, PATRICK WETTERWALD
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Patent number: 10498632Abstract: 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: GrantFiled: May 4, 2018Date of Patent: December 3, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Jianzhou Chen, Pascal Thubert, Huimin She, Feiliang Wang, Chuanwei Li
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Publication number: 20190342204Abstract: 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: ApplicationFiled: May 4, 2018Publication date: November 7, 2019Inventors: JIANZHOU CHEN, PASCAL THUBERT, HUIMIN SHE, FEILIANG WANG, CHUANWEI LI
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Patent number: 10419293Abstract: 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: GrantFiled: June 8, 2018Date of Patent: September 17, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Huimin She, Jianzhou Chen, Chuanwei Li, Pascal Thubert
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Publication number: 20190280551Abstract: 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: ApplicationFiled: March 7, 2019Publication date: September 12, 2019Applicant: FANUC CORPORATIONInventors: Jianzhou Chen, Naoki Masuda, Shinichi Mizukami
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Publication number: 20190281694Abstract: 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: ApplicationFiled: March 11, 2019Publication date: September 12, 2019Applicant: FANUC CORPORATIONInventors: Jianzhou Chen, Naoki Masuda, Shinichi Mizukami
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Patent number: 10412010Abstract: 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: GrantFiled: April 17, 2018Date of Patent: September 10, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Pascal Thubert, Patrick Wetterwald, Huimin She, Jianzhou Chen
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Publication number: 20190095966Abstract: 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 togeType: ApplicationFiled: August 1, 2018Publication date: March 28, 2019Inventor: Jianzhou CHEN
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Patent number: 8423344Abstract: 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: GrantFiled: June 7, 2011Date of Patent: April 16, 2013Assignee: Sprint Communications Company L.P.Inventors: Dean Lee Saghier, Richard Michael Wyett, Jianzhou Chen
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Patent number: 7996332Abstract: 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: GrantFiled: May 21, 2009Date of Patent: August 9, 2011Assignee: Sprint Communications Company L.P.Inventors: Dean Lee Saghier, Richard Michael Wyett, Jianzhou Chen
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Patent number: 7890473Abstract: 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: GrantFiled: October 26, 2004Date of Patent: February 15, 2011Assignee: Sprint Communications Company L.P.Inventors: Richard Michael Wyett, Jianzhou Chen, Dean Lee Saghier
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Patent number: 7676032Abstract: 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: GrantFiled: December 23, 2004Date of Patent: March 9, 2010Assignee: Sprint Communications Company L.P.Inventors: Bruce Allen Mark, Richard Michael Wyett, Jianzhou Chen, Dean Lee Saghier