Patents by Inventor Michael Friedrich Albert Staudt

Michael Friedrich Albert Staudt 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).

  • LED tube system
    Patent number: 8531109
    Abstract: The invention relates to an LED tube system for driving at least one LED assembly comprising: an LED tube housing for containing the at least one LED assembly, two pairs of mains input terminals (A, B) provided at ends of the LED tube housing for receiving a mains supply voltage (Vmns) and for supplying the mains supply voltage (Vmns) to an internal part of the LED tube system for driving the at least one LED assembly, and further comprising a switching circuit being electrically connected with all mains input terminals (A, B, C, D) and being arranged for electrically connecting the pairs of mains input terminals together in a first state (2/ON) and electrically separating the pairs in a second state (1/OFF) of the switching circuit. The switching circuit being further arranged for providing a coupling capacitor (C10, C11) between the first pair and the second pair of input terminals in the first state (2/ON) and removing the coupling capacitor (C10, C11) in the second state (1/OFF) of the switching circuit.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: September 10, 2013
    Assignee: Ledned Holding B.V.
    Inventors: Jurjen Hilwert Visser, Guang Zhi Yu, Shuang He Zeng, Michael Friedrich Albert Staudt, Shu Kei Shea, Carl Rudolf Eduard Staudt
  • LED TUBE SYSTEM
    Publication number: 20120043892
    Abstract: The invention relates to an LED tube system for driving at least one LED assembly comprising: an LED tube housing for containing the at least one LED assembly, two pairs of mains input terminals (A, B) provided at ends of the LED tube housing for receiving a mains supply voltage (Vmns) and for supplying the mains supply voltage (Vmns) to an internal part of the LED tube system for driving the at least one LED assembly, and further comprising a switching circuit being electrically connected with all mains input terminals (A, B, C, D) and being arranged for electrically connecting the pairs of mains input terminals together in a first state (2/ON) and electrically separating the pairs in a second state (1/OFF) of the switching circuit. The switching circuit being further arranged for providing a coupling capacitor (C10, C11) between the first pair and the second pair of input terminals in the first state (2/ON) and removing the coupling capacitor (C10, C11) in the second state (1/OFF) of the switching circuit.
    Type: Application
    Filed: December 16, 2009
    Publication date: February 23, 2012
    Applicant: LEDNED HOLDING B.V.
    Inventors: Jurjen Hilwert Visser, Guang Zhi Yu, Shuang He Zeng, Michael Friedrich Albert Staudt, Shu Kei Shea, Carl Rudolf Eduard Staudt