Patents by Inventor Zhihua Yang
Zhihua Yang 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).
-
Publication number: 20180273032Abstract: An automatic driving navigation method, apparatus, and system, an in-vehicle terminal, and a server are provided. The method includes obtaining, by an in-vehicle terminal, satellite positioning data of a vehicle, receiving a differential positioning correction from a radio base station in a wireless network, and correcting the satellite positioning data using the differential positioning correction to obtain a high-precision location of the vehicle; providing, by the server, a lane level planning driving route to the in-vehicle terminal according to the high-precision location provided by the in-vehicle terminal and with reference to high-precision map information; and controlling, by the in-vehicle terminal according to the obtained high-precision location, the vehicle to automatically drive according to the lane level planning driving route.Type: ApplicationFiled: May 29, 2018Publication date: September 27, 2018Inventors: Zhihua Yang, Hui Li
-
Publication number: 20180262099Abstract: A method of commutation in a matrix rectifier from an active vector to a zero vector includes two steps. A method of commutation in a matrix rectifier from a zero vector to an active vector includes three steps.Type: ApplicationFiled: May 10, 2018Publication date: September 13, 2018Inventors: Tao ZHAO, Dewei XU, Jahangir AFSHARIAN, Bing GONG, Zhihua YANG
-
Publication number: 20180262103Abstract: A matrix rectifier includes a bridge x defined by phases A and B and a bridge y defined by phases A and C, in which each input phases A, B, and C includes two bi-directional switches connected in series. A method of operating the matrix rectifier includes operating the bridges x and y as independent full-bridge phase-shifted converters in each 60° interval between two successive zero-voltage crossings of the input phases A, B, and C. In a first 30° sector of each 60° interval, the bridges x and y are operated in a first vector sequence in every switching period, and the first vector sequence is divided into a sequence of x+, y+, 0, x?, y?, 0.Type: ApplicationFiled: September 17, 2016Publication date: September 13, 2018Applicant: Murata Manufacturing Co., Ltd.Inventors: Jahangir AFSHARIAN, Dewei XU, Bing GONG, Zhihua YANG
-
Publication number: 20180245938Abstract: The present invention provides a navigation system, apparatus, and method. The navigation system includes a global navigation apparatus, a first roadside navigation apparatus, and a terminal navigation apparatus. The terminal navigation apparatus is configured to send, to the global navigation apparatus, a global path request used to request for a road-level global path. The global navigation apparatus is configured to: determine the global path according to the global path request, and send, to the terminal navigation apparatus, first indication information used to indicate the global path. The first roadside navigation apparatus is configured to: determine a lane-level local path according to the global path, and send, to the terminal navigation apparatus, second indication information used to indicate the local path.Type: ApplicationFiled: April 13, 2018Publication date: August 30, 2018Inventors: Yonggang SONG, Hui LI, Zhihua YANG
-
Publication number: 20180248489Abstract: A converter includes a half-bridge circuit including first and second transistors that are connected in series, the half-bridge circuit is connected in parallel with a voltage input and includes a node connected to both the first and second transistors; a resonant inductor connected to the half-bridge circuit and the primary winding of a transformer; a resonant capacitor connected to the half-bridge circuit and the primary winding; a third transistor with a first terminal connected to the half-bridge circuit and a second terminal directly connected to a first terminal of the resonant inductor; and a rectification stage that is connected to the secondary winding of the transformer and that includes first and second synchronous rectifiers. The rectification stage does not use discrete diodes to provide rectification, and during voltage boost operation, the third transistor is turned on and off to maintain an output voltage level.Type: ApplicationFiled: September 16, 2016Publication date: August 30, 2018Inventors: Hongliang WANG, Yang CHEN, Yan-Fei LIU, Jahangir AFSHARIAN, Zhihua YANG, Bing GONG
-
Patent number: 10008920Abstract: A method of commutation in a matrix rectifier from an active vector to a zero vector includes two steps. A method of commutation in a matrix rectifier from a zero vector to an active vector includes three steps.Type: GrantFiled: March 25, 2016Date of Patent: June 26, 2018Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Tao Zhao, Dewei Xu, Jahangir Afsharian, Bing Gong, Zhihua Yang
-
Patent number: 9929638Abstract: A start-up circuit for a resonant converter is arranged such that, during start-up of the resonant converter, the start-up circuit provides a drive signal that is to be applied to a switching transistor of the resonant converter and that has a variable duty cycle and a variable frequency. A converter includes a voltage source, a capacitor connected to the voltage source, a first switching transistor connected to the voltage source, a transformer connected to the capacitor, and a start-up circuit arranged to drive the first switching transistor with the drive signal during start-up of the converter. A start-up method for a resonant converter including a first switching transistor includes driving the first switching transistor with a variable duty cycle and a variable frequency.Type: GrantFiled: November 8, 2013Date of Patent: March 27, 2018Assignee: Murata Manufacturing Co., Ltd.Inventors: Jahangir Afsharian, Takashi Hara, Kamaljit Thandi, Zhihua Yang
-
Publication number: 20180076705Abstract: A method of commutation in a matrix rectifier from an active vector to a zero vector includes two steps. A method of commutation in a matrix rectifier from a zero vector to an active vector includes three steps.Type: ApplicationFiled: March 25, 2016Publication date: March 15, 2018Inventors: Tao ZHAO, Dewei XU, Jahangir AFSHARIAN, Bing GONG, Zhihua YANG
-
Publication number: 20170279370Abstract: A converter includes a transformer including primary windings and secondary windings, switches connected to the primary windings, an output inductor connected to the secondary windings, and a controller connected to the switches. The controller turns the switches on and off based on dwell times calculated using space vector modulation with a reference current {right arrow over (I)}ref whose magnitude changes with time.Type: ApplicationFiled: October 28, 2015Publication date: September 28, 2017Inventors: Tao ZHAO, Dewei XU, Jahangir AFSHARIAN, Bing GONG, Zhihua YANG
-
Publication number: 20150280545Abstract: A start-up circuit for a resonant converter is arranged such that, during start-up of the resonant converter, the start-up circuit provides a drive signal that is to be applied to a switching transistor of the resonant converter and that has a variable duty cycle and a variable frequency. A converter includes a voltage source, a capacitor connected to the voltage source, a first switching transistor connected to the voltage source, a transformer connected to the capacitor, and a start-up circuit arranged to drive the first switching transistor with the drive signal during start-up of the converter. A start-up method for a resonant converter including a first switching transistor includes driving the first switching transistor with a variable duty cycle and a variable frequency.Type: ApplicationFiled: November 8, 2013Publication date: October 1, 2015Applicant: Murata Manufacturing Co., Ltd.Inventors: Jahangir Afsharian, Takashi Hara, Kamaljit Thandi, Zhihua Yang
-
Patent number: 9056911Abstract: The invention discloses a humanized chimeric monoclonal antibody against carcinoembryonic antigen (CEA), polynucleotides encoding the antibody, expression vectors comprising the polynucleotides, and host cells containing the expression vectors. The invention also discloses uses of the antibody, polynucleotides, vectors and host cells for manufacturing medicaments for diagnosis and/or treatment of tumors.Type: GrantFiled: March 16, 2011Date of Patent: June 16, 2015Assignee: Shanghai Haikang Pharmaceutical Tech. & Deve. Co., Ltd.Inventors: Zhihua Yang, Yuliang Ran
-
Patent number: 8664000Abstract: Electrospray ionization techniques are used to generate reagents that ionize analytes for mass spectrometric analysis by charge transfer. Such techniques may be performed under ambient conditions. Suitable precursors for such reagents include ionizable nonpolar solvents, such as toluene or xylenes, polar solvents, such as water or alchohols, inert gases, such as helium or nitrogen, or combinations thereof. Environmental conditions in the ionization chamber of the mass spectrograph can be manipulated to generate a selected ion of an analyte in preference to other ions.Type: GrantFiled: August 30, 2012Date of Patent: March 4, 2014Assignee: The Trustees of the Stevens Institute of TechnologyInventors: Zhihua Yang, Athula Buddhagosha Attygalle
-
Publication number: 20130123471Abstract: The invention discloses a humanized chimeric monoclonal antibody against carcinoembryonic antigen (CEA), polynucleotides encoding the antibody, expression vectors comprising the polynucleotides, and host cells containing the expression vectors. The invention also discloses uses of the antibody, polynucleotides, vectors and host cells for manufacturing medicaments for diagnosis and/or treatment of tumors.Type: ApplicationFiled: March 16, 2011Publication date: May 16, 2013Applicant: Shanghai Haikang Pharmaceutical Tech. & Deve. Co., LTDInventors: Zhihua Yang, Yuliang Ran
-
Publication number: 20130040402Abstract: Electrospray ionization techniques are used to generate reagents that ionize analytes for mass spectrometric analysis by charge transfer. Such techniques may be performed under ambient conditions. Suitable precursors for such reagents include ionizable nonpolar solvents, such as toluene or xylenes, polar solvents, such as water or alchohols, inert gases, such as helium or nitrogen, or combinations thereof. Environmental conditions in the ionization chamber of the mass spectrograph can be manipulated to generate a selected ion of an analyte in preference to other ions.Type: ApplicationFiled: August 30, 2012Publication date: February 14, 2013Inventors: Zhihua Yang, Athula Buddhagosha Attygalle
-
Publication number: 20110165695Abstract: Electrospray ionization techniques are used to generate reagents that ionize analytes for mass spectrometric analysis by charge transfer. Such techniques may be performed under ambient conditions. Suitable precursors for such reagents include ionizable nonpolar solvents, such as toluene or xylenes, polar solvents, such as water or alcohols, inert gases, such as helium or nitrogen, or combinations thereof. Environmental conditions in the ionization chamber of the mass spectrograph can be manipulated to generate a selected ion of an analyte in preference to other ions.Type: ApplicationFiled: September 29, 2010Publication date: July 7, 2011Inventors: Chang-Ching Chan, Mark S. Bolgar, Scott A. Miller, Zhihua Yang, Athula Buddhagosha Attygalle
-
Patent number: 7612602Abstract: A resonate gate drive circuit for driving at least one power switching devices recovers energy loss for charging and discharging the input capacitance of the power switching devices. The gate drive circuit charging and discharging the gate capacitor with a high level current, so the switching loss of the power switching devices can also be reduced. The gate drive circuit can clamp and keep the voltage across the gate capacitor to a certain level while the power switching devices turn on, and it can also clamp and keep the voltage across the gate capacitor to almost zero while the power switching devices turn off. The gate drive circuit comprises four small semiconductor bidirectional conducting switching devices connected in full-bridge configuration. An inductor is connected to the two junctions of the full-bridge configuration to help switching the current direction. A capacitor in series with the inductor is necessary for some applications.Type: GrantFiled: January 31, 2005Date of Patent: November 3, 2009Assignee: Queen's University at KingstonInventors: Zhihua Yang, Yan-Fei Liu
-
Patent number: 7598792Abstract: A resonate gate drive circuit for driving at least one power switching device recovers energy loss for charging and discharging the gate capacitance of the power switching devices. The gate drive circuit uses a current source to charge and discharge the gate capacitance with a high current, reducing the switching loss of the power switching device. The gate drive circuit comprises four semiconductor bidirectional conducting switching devices connected in a full-bridge configuration. An inductor connected across the bridge configuration provides the current source. The gate drive circuit may be used in single and dual high-side and low-side, symmetrical or complementary, power converter gate drive applications.Type: GrantFiled: November 4, 2005Date of Patent: October 6, 2009Assignee: Queen's University at KingstonInventors: Yan-Fei Liu, Zhihua Yang, Wilson Eberle
-
Publication number: 20060170042Abstract: A resonate gate drive circuit for driving at least one power switching devices recovers energy loss for charging and discharging the input capacitance of the power switching devices. The gate drive circuit charging and discharging the gate capacitor with a high level current, so the switching loss of the power switching devices can also be reduced. The gate drive circuit can clamp and keep the voltage across the gate capacitor to a certain level while the power switching devices turn on, and it can also clamp and keep the voltage across the gate capacitor to almost zero while the power switching devices turn off. The gate drive circuit comprises four small semiconductor bidirectional 10 conducting switching devices connected in full-bridge configuration. An inductor is connected to the two junctions of the full-bridge configuration to help switching the current direction. A capacitor in series with the inductor is necessary for some applications.Type: ApplicationFiled: January 31, 2005Publication date: August 3, 2006Inventors: Zhihua Yang, Yan-Fei Liu
-
Publication number: 20060170043Abstract: A resonate gate drive circuit for driving at least one power switching device recovers energy loss for charging and discharging the gate capacitance of the power switching devices. The gate drive circuit uses a current source to charge and discharge the gate capacitance with a high current, reducing the switching loss of the power switching device. The gate drive circuit comprises four semiconductor bidirectional conducting switching devices connected in a full-bridge configuration. An inductor connected across the bridge configuration provides the current source. The gate drive circuit may be used in single and dual high-side and low-side, symmetrical or complementary, power converter gate drive applications.Type: ApplicationFiled: November 4, 2005Publication date: August 3, 2006Inventors: Yan-Fei Liu, Zhihua Yang, Wilson Eberle