Patents by Inventor Woody Chan

Woody Chan 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).

  • Multi-lamp actuating facility
    Patent number: 7045967
    Abstract: A lamp actuating device includes a number of lamps each having an output terminal, an inverter circuit coupled to the lamps to energize the lamps, a low frequency control unit coupled to the inverter circuit, to set an average value for the level of the effective lamp current at the output terminals of the lamps and to control the inverter circuit, a number of current detecting devices coupled between the lamps and the low frequency control devices to obtain and send the average current value at the output terminals of the lamps to the low frequency control unit. A number of regulating devices are coupled between the lamps and the low frequency control unit, to maintain each lamp at the predetermined average value of the effective current.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: May 16, 2006
    Assignee: Taipei Multipower Electronics Co., Ltd.
    Inventors: Mender Chen, Woody Chan, Kevin Wang
  • Multi-lamp actuating facility
    Patent number: 6856099
    Abstract: A lamp actuating device includes a number of lamps each having an output terminal, an inverter circuit coupled to the lamps to convert electric power and to energize the lamps, a low frequency control unit coupled to the inverter circuit, to set an average current value at the output terminals of the lamps and to control the inverter circuit, a number of current detecting units coupled between the lamps and the low frequency control unit to obtain and send the average current value at the output terminals of the lamps to the low frequency control unit. A number of regulating devices are coupled between the lamps and the low frequency control unit respectively, to control electric power through the lamps, and to maintain each of the lamps at the average current value.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: February 15, 2005
    Assignee: Taipei Multipower Electronics Co., Ltd.
    Inventors: Mender Chen, Woody Chan, Kevin Wang
  • Multi-lamp actuating facility
    Publication number: 20050029967
    Abstract: A lamp actuating device includes a number of lamps each having an output terminal, an inverter circuit coupled to the lamps to energize the lamps, a low frequency control unit coupled to the inverter circuit, to set an average value for the level of the effective lamp current at the output terminals of the lamps and to control the inverter circuit, a number of current detecting devices coupled between the lamps and the low frequency control devices to obtain and send the average current value at the output terminals of the lamps to the low frequency control unit. A number of regulating devices are coupled between the lamps and the low frequency control unit, to maintain each lamp at the predetermined average value of the effective current.
    Type: Application
    Filed: September 8, 2004
    Publication date: February 10, 2005
    Inventors: Mender Chen, Woody Chan, Kevin Wang
  • MULTI-LAMP ACTUATING FACILITY
    Publication number: 20050012466
    Abstract: A lamp actuating device includes a number of lamps each having an output terminal, an inverter circuit coupled to the lamps to convert electric power and to energize the lamps, a low frequency control unit coupled to the inverter circuit, to set an average current value at the output terminals of the lamps and to control the inverter circuit, a number of current detecting units coupled between the lamps and the low frequency control unit to obtain and send the average current value at the output terminals of the lamps to the low frequency control unit. A number of regulating devices are coupled between the lamps and the low frequency control unit respectively, to control electric power through the lamps, and to maintain each of the lamps at the average current value.
    Type: Application
    Filed: July 16, 2003
    Publication date: January 20, 2005
    Inventors: Mender Chen, Woody Chan, Kevin Wang