Patents by Inventor Yu-Han Chien

Yu-Han Chien 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: 9338347
    Abstract: In a method for adjusting a photographic lamp of an electronic device, the electronic device obtains a preview image from a camera device of the electronic device, and obtains a brightness value of an ambient environment of the electronic device. When a human face is detected in the obtained preview image, the electronic device changes a current output power value of the photographic lamp to be a first output power value, according to the obtained brightness value. When no human face is detected in the obtained preview image, the electronic device changes the current output power value to be a second output power value according to the obtained brightness value.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 10, 2016
    Assignee: Chiun Mai Communication Systems, Inc.
    Inventors: Yu-Han Chien, Chao-Yun Yu, Li-Ly Chang
  • Publication number: 20140307153
    Abstract: In a method for adjusting a photographic lamp of an electronic device, the electronic device obtains a preview image from a camera device of the electronic device, and obtains a brightness value of an ambient environment of the electronic device. When a human face is detected in the obtained preview image, the electronic device changes a current output power value of the photographic lamp to be a first output power value, according to the obtained brightness value. When no human face is detected in the obtained preview image, the electronic device changes the current output power value to be a second output power value according to the obtained brightness value.
    Type: Application
    Filed: August 28, 2013
    Publication date: October 16, 2014
    Applicant: CHIUN MAI COMMUNICATION SYSTEMS, INC.
    Inventors: YU-HAN CHIEN, CHAO-YUN YU, LI-LY CHANG
  • Patent number: 7952268
    Abstract: An electroluminescent device includes a first electrode layer, a phosphor layer on the first electrode layer, a layer with permanent accumulated charges on the phosphor layer, and a second electrode layer on the layer with permanent accumulated charges. By the addition of the layer with permanent accumulated charges, an external driving voltage applied to the luminescent device can be reduced.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: May 31, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Han Chien, Shih-Chieh Hsu, Yu-Yang Chang, Cheng-Chung Lee
  • Publication number: 20110012496
    Abstract: A thermal sensitive display is disclosed, including a substrate, a first electrode and a second electrode perpendicular with each other over the substrate, a electric heat converting layer between the first electrode and the second electrode, and a heat induced color changing layer, heated by the electric heat converting layer to display pictures.
    Type: Application
    Filed: February 10, 2010
    Publication date: January 20, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yu-Yang Chang, Chen-Pang Kung, Yu-Han Chien, Chung-I Lee, Cheng-Chung Lee
  • Patent number: 7731003
    Abstract: An axially actuating device having an elastic joining portion is provided, which is used for carrying an object and actuating the object to move axially, and comprises a fixed portion, a moving portion, and a joining member. The joining member is used to combine the fixed portion with the moving portion, such that the fixed portion and the moving portion are axially coupled with each other. Moreover, the fixed portion and the moving portion are respectively a fixed magnet and a coil, such that when a current is applied to the moving portion, the moving portion generates a relative displacement with respect to the fixed portion according to the current, so as to provide an axial displacement. Meanwhile, the moving energy is generated due to the repulsive interaction of the magnetic field, and thus a shock proofing efficacy is also provided.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: June 8, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Han-Wei Su, Wen-I Wu, Chao-Chang Hu, Yu-Han Chien
  • Publication number: 20090039763
    Abstract: An electroluminescent device includes a first electrode layer, a phosphor layer on the first electrode layer, a layer with permanent accumulated charges on the phosphor layer, and a second electrode layer on the layer with permanent accumulated charges. By the addition of the layer with permanent accumulated charges, an external driving voltage applied to the luminescent device can be reduced.
    Type: Application
    Filed: August 4, 2008
    Publication date: February 12, 2009
    Inventors: Yu-Han Chien, Shih-Chieh Hsu, Yu-Yang Chang, Cheng-Chung Lee
  • Patent number: 7489071
    Abstract: The present invention provides a field emission system and a method for improving its vacuum. The present invention employs aging surface-unsaturated carbon nanotubes in non-display areas of the field emission system as getter material to absorb residual gas within the system so as to improve its vacuum. The present method for improving vacuum of the field emission system can be integrated with the standard process of a field emission display device without additional fabricating steps, and thus facilitating the mass production of the field emission display device.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: February 10, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Han Chien, Chih-Ping Peng, Chuan-Hsu Fu, Wei-Yi Lin, Lih-Hsiung Chan
  • Publication number: 20080042547
    Abstract: The present invention provides a field emission system and a method for improving its vacuum. The present invention employs aging surface-unsaturated carbon nanotubes in non-display areas of the field emission system as getter material to absorb residual gas within the system so as to improve its vacuum. The present method for improving vacuum of the field emission system can be integrated with the standard process of a field emission display device without additional fabricating steps, and thus facilitating the mass production of the field emission display device.
    Type: Application
    Filed: November 7, 2006
    Publication date: February 21, 2008
    Inventors: Yu-Han Chien, Chih-Ping Peng, Chuan-Hsu Fu, Wei-Yi Lin, Lih-Hsiung Chan
  • Publication number: 20070159010
    Abstract: An axially actuating device having an elastic joining portion is provided, which is used for carrying an object and actuating the object to move axially, and comprises a fixed portion, a moving portion, and a joining member. The joining member is used to combine the fixed portion with the moving portion, such that the fixed portion and the moving portion are axially coupled with each other. Moreover, the fixed portion and the moving portion are respectively a fixed magnet and a coil, such that when a current is applied to the moving portion, the moving portion generates a relative displacement with respect to the fixed portion according to the current, so as to provide an axial displacement. Meanwhile, the moving energy is generated due to the repulsive interaction of the magnetic field, and thus a shock proofing efficacy is also provided.
    Type: Application
    Filed: December 12, 2006
    Publication date: July 12, 2007
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Han-Wei Su, Wen-I Wu, Chao-Chang Hu, Yu-Han Chien
  • Patent number: 7133185
    Abstract: A self-assembly structure of micro electromechanical optical switch utilizes residual stresses of three curved beams. The first curved beam pushes the base plate away from the substrate. The second curved beam lifts up the mirror slightly. Then, the third curved beam rotates the mirror vertical to the base plate and achieves self-assembly. In another embodiment, magnetic force and magnetic-activated elements are used.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: November 7, 2006
    Assignee: Industrial Technology Research Institute
    Inventors: Shih-Yi Wen, Hsiao-Wen Lee, Jui-Ping Weng, Wu-Cheng Kuo, Chen-Yu Weng, Yu-Han Chien