Patents by Inventor WeiCheng Cheng

WeiCheng Cheng 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: 9859665
    Abstract: According to one aspect, embodiments herein provide a power distribution device including a power outlet comprising a receptacle including an internal conductor configured to be coupled to a power source and to an external conductor inserted into the receptacle, a switch configured to provide an indication of whether the external conductor has been sufficiently inserted within the receptacle, a relay configured to form a first connection between the external conductor and the power source, a transistor configured to be coupled in parallel with the relay, to form a second connection between the external conductor and the power source, and a controller configured to determine, based on the switch, that the external conductor is being removed, in response to the external conductor being removed, control the relay to sever the first connection, and in response to opening the relay, control the transistor to sever the second connection after a predetermined delay.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: January 2, 2018
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventors: Daniel J. Rohr, Weicheng Cheng
  • Publication number: 20160079718
    Abstract: According to one aspect, embodiments herein provide a power distribution device including a power outlet comprising a receptacle including an internal conductor configured to be coupled to a power source and to an external conductor inserted into the receptacle, a switch configured to provide an indication of whether the external conductor has been sufficiently inserted within the receptacle, a relay configured to form a first connection between the external conductor and the power source, a transistor configured to be coupled in parallel with the relay, to form a second connection between the external conductor and the power source, and a controller configured to determine, based on the switch, that the external conductor is being removed, in response to the external conductor being removed, control the relay to sever the first connection, and in response to opening the relay, control the transistor to sever the second connection after a predetermined delay.
    Type: Application
    Filed: March 29, 2013
    Publication date: March 17, 2016
    Inventors: Daniel J. Rohr, Weicheng Cheng
  • Patent number: 8305439
    Abstract: A surveillance camera that includes a device for capturing video signals and that converts the video signals to optical signals. The surveillance camera has a first component with a first aperture and a second component with a second aperture. The second component engages the first component such that the first component rotates relative to the second component. The surveillance camera has a first optical component that extends through the first aperture of the first component. The surveillance camera also has a second optical component that extends through the second aperture of the second component. The first optical component is separated from the second optical component by a gap. The first optical component is operatively connected to the device. The first optical component receives the optical signals and transmits the optical signals to the second optical component across the gap to permit a continuous rotation of the first component relative to the second component.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: November 6, 2012
    Assignee: Honeywell International Inc.
    Inventors: WeiCheng Cheng, Hao Wang, Xin Xu
  • Publication number: 20100141760
    Abstract: A surveillance camera that includes a device for capturing video signals and that converts the video signals to optical signals. The surveillance camera has a first component with a first aperture and a second component with a second aperture The second component engages the first component such that the first component rotates relative to the second component. The surveillance camera has a first optical component that extends through the first aperture of the first component. The surveillance camera also has a second optical component that extends through the second aperture of the second component. The first optical component is separated from the second optical component by a gap. The first optical component is operatively connected to the device. The first optical component receives the optical signals and transmits the optical signals to the second optical component across the gap to permit a continuous rotation of the first component relative to the second component.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: WeiCheng Cheng, Hao Wang, Xin Xu