Patents by Inventor Junjie Zheng

Junjie Zheng 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: 10715789
    Abstract: A light-deflection three-dimensional imaging device and a projection device, and the application thereof are provided. The light-deflection three-dimensional imaging device includes a projection device, a receiving device and a processor. The projection device includes a light source, a grating, a condensing lens group, a light deflection element and an emission lens, wherein after the modulation by the grating, the aggregation by the condensing lens group and the deflection by the light deflection element, the projection light transmitted by the light source penetrates the emission lens and is emitted from a side surface of the projection device.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: July 14, 2020
    Assignee: Ningbo Sunny Opotech Co., Ltd.
    Inventors: Kouwen Zhang, Baozhong Zhang, Huanbiao Zhou, Qiang Li, Jie Zheng, Ding Lu, Junjie Zeng, Peng Lu, Zhifu Yu, Bainian Chu, Zongze Wang
  • Publication number: 20200183538
    Abstract: A touch module, touch display substrate and touch display device are provided. The touch module includes: a base substrate, and a conductive grid layer and a bridging pattern disposed on the base substrate; the conductive grid layer covers an entire touch area on the base substrate. The conductive grid layer includes a plurality of first touch electrodes and a plurality of second touch electrodes, the first touch electrodes and the second touch electrodes are arranged crosswise and insulated from each other, each of the first touch electrodes includes a plurality of connected first sub-electrodes, and each of the second touch electrodes includes a plurality of independent second sub-electrodes; the bridging pattern and the conductive grid layer are arranged in different layers; and adjacent second sub-electrodes belonging to the same second touch electrode are connected through the bridging pattern.
    Type: Application
    Filed: July 17, 2019
    Publication date: June 11, 2020
    Inventors: Yuanyuan Li, Meizhu Zheng, Junjie Li
  • Publication number: 20190376493
    Abstract: A self-inspection method for a hydraulic control turning system of a generator rotor includes: establishing a length dimension relationship table among a plurality of hydraulic cylinders of the hydraulic control turning system; selecting a reference hydraulic cylinder, and acquiring a reference length dimension when the reference hydraulic cylinder is located at a target working position, the target working position is a position at which a turning pin corresponding to the reference hydraulic cylinder is inserted into an adapted hole; and performing a function inspection of a motion execution module in sequence by the plurality of the hydraulic cylinders, based on the reference length dimension and the length dimension relationship table.
    Type: Application
    Filed: April 26, 2018
    Publication date: December 12, 2019
    Inventors: Hongfeng LI, Guoshuai WANG, Junjie ZHENG, Endi ZHAI, Xingang ZHANG, Ye LI
  • Patent number: 10411651
    Abstract: An amplifying device includes a power amplifying unit, a power supply unit for providing the power amplifying unit with a positive power supply and a negative power supply, and a mode control unit for controlling a working mode of the power supply unit. The positive power supply and the negative power supply of the amplifying device are able to vary with an output signal thereof, which reduces the power consumption of the outputted transistors of the amplifying device, thereby improving the efficiency of the amplifying device.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: September 10, 2019
    Assignee: Chengdu University of Information technology
    Inventors: Haishi Wang, Yingxiang Li, Jiang Du, Yan Yang, Tianbao Wang, Zhan Wen, Xin Zheng, Jie Sun, Yu Zhang, Junjie Yang
  • Patent number: 10392691
    Abstract: A semiconductor silicon-germanium thin film preparation method, comprising the following steps: cleaning a mono-crystalline silicon substrate and then disposing the same on a substrate table; respectively sputtering a silicon single thin film and a germanium single thin film; depositing a silicon-germanium alloy thin film having different components on another single crystal silicon substrate using a co-sputtering method, measuring the thickness of the deposited thin film, and obtaining a silicon-germanium alloy thin film having different component ratios.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: August 27, 2019
    Assignee: NINGBO CRRC TIMES TRANSDUCER TECHNOLOGY CO., LTD.
    Inventors: Xiaowei Hou, Junjie Guo, Dacheng Ni, Fei Wang, Huaxiong Zheng, Liangguang Zheng, Juping Li
  • Patent number: 10187950
    Abstract: A LED lighting system, such as a dimmable LED lamp, that may simulate the performance of an incandescent bulb. LED strings of different colors may be connected to the output of a single LED driver that regulates an overall intensity of light produced by the LED lighting system. The color of the LED lighting system may be controlled by circuitry, such as one or more switches, that allocates current between the LED strings to change the color temperature of light emitted by the LED lighting system as the light intensity changes.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: January 22, 2019
    Assignee: DIALOG SEMICONDUCTOR INC.
    Inventors: Liang Yan, Junjie Zheng
  • Patent number: 10063073
    Abstract: A universal serial bus (USB) charger provides power to a client device. A USB connector interfaces with a client device and receives a request for the output voltage of the USB charger to be at a specific value. If the requested voltage level is lower than the current output voltage level, the output voltage level is set to the requested level and a bleeder circuit is enabled to discharge the output capacitor of the USB charger.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: August 28, 2018
    Assignee: Dialog Semiconductor Inc.
    Inventors: Jianming Yao, Yimin Chen, Yong Li, Junjie Zheng, Dickson T. Wong
  • Publication number: 20180103523
    Abstract: A LED lighting system, such as a dimmable LED lamp, that may simulate the performance of an incandescent bulb. LED strings of different colors may be connected to the output of a single LED driver that regulates an overall intensity of light produced by the LED lighting system. The color of the LED lighting system may be controlled by circuitry, such as one or more switches, that allocates current between the LED strings to change the color temperature of light emitted by the LED lighting system as the light intensity changes.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 12, 2018
    Inventors: Liang Yan, Junjie Zheng
  • Patent number: 9844113
    Abstract: A LED lighting system, such as a dimmable LED lamp, that may simulate the performance of an incandescent bulb. LED strings of different colors may be connected to the output of a single LED driver that regulates an overall intensity of light produced by the LED lighting system. The color of the LED lighting system may be controlled by circuitry, such as one or more switches, that allocates current between the LED strings to change the color temperature of light emitted by the LED lighting system as the light intensity changes.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 12, 2017
    Assignee: DIALOG SEMICONDUCTOR INC.
    Inventors: Liang Yan, Junjie Zheng
  • Patent number: 9525352
    Abstract: The drive current of the switch in a switching power converter is adjusted dynamically according to line or load conditions within a switching cycle and/or over a plurality of switching cycles. The magnitude of the switch drive current can be dynamically adjusted within a switching cycle and/or over a plurality of switching cycles, in addition to the pulse widths or pulse frequencies of the switch drive current.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: December 20, 2016
    Assignee: Dialog Semiconductor Inc.
    Inventors: Junjie Zheng, Jun Zheng, Andrew Kwok-Cheung Lee, John William Kesterson, Allan Ming-Lun Lin, Hien Huu Bui, Carrie Seim, Yong Li
  • Patent number: 9444364
    Abstract: A switching power converter includes a controller configured to transition from a first operating mode to a second operating mode by determining the operating conditions at the transition point between the operation modes. The controller uses the value of the voltage-time product determined at the boundary between the first and second operating modes to predict the voltage to be applied to the primary-side of the transformer. Using the predicted voltage, the controller can adjust the peak-power control threshold on a cycle-by-cycle basis without the transformer reaching saturation.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: September 13, 2016
    Assignee: Dialog Semiconductor Inc.
    Inventors: Junjie Zheng, Liang Yan
  • Patent number: 9420645
    Abstract: A light emitting diode (LED) controller provides constant current regulation for a converter circuit providing current to an LED. The LED controller senses an inductor voltage and determines an inductor reset time from the sensed inductor voltage. Based on the determined inductor reset time, a switch on time and a switch period, the LED controller generates a control signal modifying the state of a switch coupling the converter circuit to an input voltage.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: August 16, 2016
    Assignee: Dialog Semiconductor Inc.
    Inventors: Liang Yan, Junjie Zheng, Gordon Chen
  • Patent number: 9318963
    Abstract: A primary-only power supply enables transmission of a signal or message from the secondary side of an isolated power supply to the primary side. To enable robust detection of the message without interfering with primary side sensing for output regulation, a configurable impedance current path is configured between the primary winding and ground. The primary side controller controls the configurable impedance current path to have a relatively low impedance during the normal mode and a relatively high impedance during the messaging mode.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: April 19, 2016
    Assignee: Dialog Semiconductor Inc.
    Inventors: Jianming Yao, Pengju Kong, Yong Li, Junjie Zheng
  • Publication number: 20150340890
    Abstract: A universal serial bus (USB) charger provides power to a client device. A USB connector interfaces with a client device and receives a request for the output voltage of the USB charger to be at a specific value. If the requested voltage level is lower than the current output voltage level, the output voltage level is set to the requested level and a bleeder circuit is enabled to discharge the output capacitor of the USB charger.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 26, 2015
    Inventors: Jianming Yao, Yimin Chen, Yong Li, Junjie Zheng, Dickson T. Wong
  • Patent number: 9154039
    Abstract: A power converter includes a transformer with a primary and a secondary winding. Feedback and control is maintained on the primary-side while a separate load detection circuit detects dynamic load conditions on the secondary-side. The load detection circuit detects dynamic load conditions at the time when a load is connected to the output of the switching power converter and, in turn, generates an alert signal. A coupling circuit coupled to the load detection circuit at the secondary winding side of the transformer and to the controller at the primary winding side of the transformer transmits the alert signal to the controller. The controller regulates the output voltage based on the feedback signal generated at the primary side of the transformer while detecting and responding to the dynamic load condition based on the alert signal generated at the secondary side of the transformer.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: October 6, 2015
    Assignee: Dialog Semiconductor Inc.
    Inventors: Yong Li, Jiang Chen, Junjie Zheng, Jianming Yao, Xiaolin Gao
  • Patent number: 9084325
    Abstract: An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. Using the detected dimmer type, the dimmer control unit generates control signals appropriate for the detected dimmer type to provide regulated current to the LEDs and to achieve the desired dimming effect. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: July 14, 2015
    Assignee: Dialog Semiconductor Inc.
    Inventors: Junjie Zheng, John W. Kesterson, Richard M. Myers, Baorong Chen, Gordon Chen
  • Publication number: 20150163879
    Abstract: An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. Using the detected dimmer type, the dimmer control unit generates control signals appropriate for the detected dimmer type to provide regulated current to the LEDs and to achieve the desired dimming effect. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches.
    Type: Application
    Filed: January 15, 2015
    Publication date: June 11, 2015
    Inventors: Junjie Zheng, John W. Kesterson, Richard M. Myers, Baorong Chen, Gordon Chen
  • Patent number: 8970135
    Abstract: An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. A dimmer control unit detects a type of dimmer switch during a configuration process. Using the detected dimmer type, the dimmer control unit generates control signals appropriate for the detected dimmer type to provide regulated current to the LEDs and to achieve the desired dimming effect. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 3, 2015
    Assignee: Dialog Semiconductor Inc.
    Inventors: Junjie Zheng, John W. Kesterson, Richard M. Myers, Baorong Chen, Gordon Chen
  • Patent number: 8964422
    Abstract: A controller of a switching power converter sets an actual turn-on time of a switch in the switching power converter in each switching cycle by selecting one of a plurality of valley points of the output voltage of the switching power converter occurring subsequent to the desired turn-on time of the switch. The desired turn-on time of the switch may be calculated according to the regulation scheme employed by the switching power converter. The controller selects one of the plurality of valley points randomly from switching cycle to switching cycle. The controller generates a control signal to turn on the switching power converter at the selected one of the plurality of valley points of the output voltage occurring subsequent to the desired turn-on time.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: February 24, 2015
    Assignee: Dialog Semiconductor Inc.
    Inventors: Fuqiang Shi, Yong Li, John William Kesterson, David Nguyen, Junjie Zheng
  • Patent number: 8933582
    Abstract: A single power supply provides at least one constant voltage output and at least one constant current output. The single power supply includes two or more switching power converters, such as flyback converters, that are independently controllable based on an error signal corresponding to the associated output. Further, one or more of the switching power converters can implement such control using primary-side feedback. The switching power converters can be flyback converters. Any switching power converters included the in the single power supply can both be part of a single PCB assembly, part of a single IC package, or part of a single monolith semiconductor die.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: January 13, 2015
    Assignee: Dialog Semiconductor Inc.
    Inventors: Junjie Zheng, Jangsoo Han