Patents by Inventor Xuewei Dai

Xuewei Dai 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: 9635735
    Abstract: A master illuminating device may include an illuminating module, and a signal acquisition and processing unit for detecting the surrounding and outputting a control signal. The illuminating module is designed to receive the control signal and is driven according to the control signal. The illuminating device further include a signal transmission unit which is designed to receive the control signal and is designed to transmit the control signal.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: April 25, 2017
    Assignee: OSRAM GmbH
    Inventors: XiHe Zhuang, Middel Tjaco, Daxin Lin, Xuewei Dai, Zesheng Ye
  • Patent number: 9629224
    Abstract: A lighting device may include a tube and end caps located at two ends of the tube, a lighting assembly arranged in the tube, a driver for the lighting assembly, an antenna, and a wireless communication circuit for conducting wireless communication, the antenna being provided in the end cap and the wireless communication circuit being provided in the tube or at least partially provided in the end cap, and one side of the wire communication circuit being connected to the driver and the other side thereof being connected to the antenna.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: April 18, 2017
    Assignee: OSRAM GMBH
    Inventors: Xuewei Dai, Aimin Lin, Middel Tjaco, Zesheng Ye
  • Patent number: 9568176
    Abstract: A completely plastic LED tube light, may include plastic shell comprising wires embedded therein, wherein two or more projections having greater dimensions than that of the wires are formed on the wires, end caps located at two ends of the plastic shell, respectively, and LEDs positioned in a space enclosed by the plastic shell and the end caps. A method for manufacturing the completely plastic LED tube light is also disclosed.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: February 14, 2017
    Assignee: OSRAM GMBH
    Inventors: Zesheng Ye, Xuewei Dai, Nimchung Ku, Middel Tjaco
  • Patent number: 9456475
    Abstract: An illumination control system includes a rectifying device, a damping device for inhibiting flickering, and a load circuit, wherein the illumination control system further comprises a recognizing control circuit connected between the rectifying device and the damping device, and wherein the recognizing control circuit includes a recognizing signal output module and a switch module, the recognizing signal output module generates a first control signal indicating that a dimmer is not connected upstream the rectifying device or the dimmer is connected upstream the rectifying device and reaches a predetermined dimming level and a second control signal indicating that the dimmer is connected upstream the rectifying device and does not reach the predetermined dimming level and at least one damping resistor of the damping device is short connected or is connected by means of the switch module according to the first control signal or the second control signal.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: September 27, 2016
    Assignee: OSRAM GMBH
    Inventors: ZhiJian Cao, Xuewei Dai, Zeke Wei, XiHe Zhuang
  • Patent number: 9356532
    Abstract: Various embodiments relate to a load driver and a luminaire including the load driver. The load driver may include a voltage limiting circuit including a first polar capacitor and a second polar capacitor connected in inverse series, which are connected in parallel respectively with first and second current limiting elements, where the first and second current limiting elements limit the direction in which current flows so that current flows through different polar capacitors in positive and negative halves of a cycle of an alternating-current power supply.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: May 31, 2016
    Assignee: OSRAM GMBH
    Inventors: Daxin Lin, Hui Jia, Yaping Liu, SiXiong Zeng, Middel Tjaco, Xuewei Dai, Yewei Liufu
  • Patent number: 9099917
    Abstract: A constant current source circuit includes a main circuit, wherein the main circuit includes a first three-terminal regulator, a transistor, a sample resistor and a load, an output terminal of the first three-terminal regulator is connected with a control Electrode of the transistor, a reference Electrode of the transistor is connected with a voltage input terminal, a working Electrode is connected with one end of the load, and the other end of the load is connected with one end of the sample resistor, and the other end of the sample resistor and an input terminal of the first three-terminal regulator are connected to a reference potential, respectively, wherein the constant current source circuit further includes an adjusting unit that includes a voltage stabilizing unit, a fourth resistor and a fifth resistor.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: August 4, 2015
    Assignee: Osram GmbH
    Inventors: Xuewei Dai, Chunjun Jiang, Middel Tjaco, Dezhao Zhang
  • Publication number: 20150097493
    Abstract: Various embodiments relate to a load driver and a luminaire including the load driver. The load driver may include a voltage limiting circuit including a first polar capacitor and a second polar capacitor connected in inverse series, which are connected in parallel respectively with first and second current limiting elements, where the first and second current limiting elements limit the direction in which current flows so that current flows through different polar capacitors in positive and negative halves of a cycle of an alternating-current power supply.
    Type: Application
    Filed: May 23, 2013
    Publication date: April 9, 2015
    Inventors: Daxin Lin, Hui Jia, Yaping Liu, SiXiong Zeng, Middel Tjaco, Xuewei Dai, Yewei Liufu
  • Publication number: 20150022113
    Abstract: Various embodiments relate to a power factor controller based single-stage flyback driver and a light-emitting system. The driver includes a primary-side circuit, a secondary-side circuit, a power factor controller, a current feedback circuit, a voltage feedback circuit, and a feedback signal generation circuit, wherein, in the secondary-side circuit, the output voltage is divided using a first voltage division resistor and a second voltage division resistor so as to provide the sampling of the output voltage to the voltage feedback circuit, and the first voltage division resistor or the second voltage division resistor is connected in parallel with a compensation branch having a capacitive reactance.
    Type: Application
    Filed: December 17, 2012
    Publication date: January 22, 2015
    Applicant: OSRAM GmbH
    Inventors: Yewei Liufu, Xuewei Dai, XiHe Zhuang, Quan Zhang
  • Publication number: 20140375204
    Abstract: A lighting device may include a tube and end caps located at two ends of the tube, a lighting assembly arranged in the tube, a driver for the lighting assembly, an antenna, and a wireless communication circuit for conducting wireless communication, the antenna being provided in the end cap and the wireless communication circuit being provided in the tube or at least partially provided in the end cap, and one side of the wire communication circuit being connected to the driver and the other side thereof being connected to the antenna.
    Type: Application
    Filed: August 14, 2012
    Publication date: December 25, 2014
    Applicant: OSRAM GMBH
    Inventors: Xuewei Dai, Aimin Lin, Middel Tjaco, Zesheng Ye
  • Publication number: 20140327365
    Abstract: A constant current source circuit includes a main circuit, wherein the main circuit includes a first three-terminal regulator, a transistor, a sample resistor and a load, an output terminal of the first three-terminal regulator is connected with a control Electrode of the transistor, a reference Electrode of the transistor is connected with a voltage input terminal, a working Electrode is connected with one end of the load, and the other end of the load is connected with one end of the sample resistor, and the other end of the sample resistor and an input terminal of the first three-terminal regulator are connected to a reference potential, respectively, wherein the constant current source circuit further includes an adjusting unit that includes a voltage stabilizing unit, a fourth resistor and a fifth resistor.
    Type: Application
    Filed: August 23, 2012
    Publication date: November 6, 2014
    Applicant: OSRAM GMBH
    Inventors: Xuewei Dai, Chunjun Jiang, Middel Tjaco, Dezhao Zhang
  • Publication number: 20140320028
    Abstract: A master illuminating device may include an illuminating module, and a signal acquisition and processing unit for detecting the surrounding and outputting a control signal. The illuminating module is designed to receive the control signal and is driven according to the control signal. The illuminating device further include a signal transmission unit which is designed to receive the control signal and is designed to transmit the control signal.
    Type: Application
    Filed: November 26, 2012
    Publication date: October 30, 2014
    Inventors: XiHe Zhuang, Middel Tjaco, Daxin Lin, Xuewei Dai, Zesheng Ye
  • Publication number: 20140252972
    Abstract: An illumination control system includes a rectifying device, a damping device for inhibiting flickering, and a load circuit, wherein the illumination control system further comprises a recognizing control circuit connected between the rectifying device and the damping device, and wherein the recognizing control circuit includes a recognizing signal output module and a switch module, the recognizing signal output module generates a first control signal indicating that a dimmer is not connected upstream the rectifying device or the dimmer is connected upstream the rectifying device and reaches a predetermined dimming level and a second control signal indicating that the dimmer is connected upstream the rectifying device and does not reach the predetermined dimming level and at least one damping resistor of the damping device is short connected or is connected by means of the switch module according to the first control signal or the second control signal.
    Type: Application
    Filed: August 23, 2012
    Publication date: September 11, 2014
    Applicant: OSRAM GMBH
    Inventors: ZhiJian Cao, Xuewei Dai, Zeke Wei, XiHe Zhuang
  • Publication number: 20140240973
    Abstract: A completely plastic LED tube light, may include plastic shell comprising wires embedded therein, wherein two or more projections having greater dimensions than that of the wires are formed on the wires, end caps located at two ends of the plastic shell, respectively, and LEDs positioned in a space enclosed by the plastic shell and the end caps. A method for manufacturing the completely plastic LED tube light is also disclosed.
    Type: Application
    Filed: September 7, 2012
    Publication date: August 28, 2014
    Applicant: OSRAM GMBH
    Inventors: Zesheng Ye, Xuewei Dai, Nimchung Ku, Middel Tjaco
  • Publication number: 20130321154
    Abstract: An EAS device with a housing. In one embodiment, the EAS housing is a one-piece tray-shaped device with the edges contoured so that the monitored object snaps into the tray or is slid into the tray. Other embodiments may include but are not limited to a two piece housing where one piece of the housing has a protrusion which, when closed together and fitted with the other piece of the housing, engages with a releasable clutch located within the back piece. A clutch within the housing prevents the two pieces of the housing from being disengaged until the clutch is released. The EAS devices carry at least a passive EAS element. More advanced EAS electronic elements may also be carried in the housing.
    Type: Application
    Filed: June 4, 2013
    Publication date: December 5, 2013
    Inventors: Xiao Hui Yang, Xuewei Dai