Patents by Inventor Yen-Chung Chang

Yen-Chung Chang 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).

  • Publication number: 20110141485
    Abstract: Provided is a system for localizing a carrier, estimating a posture of the carrier and establishing a map. The system includes: an inertial measurement device, measuring a motion state and a rotation state of the carrier; a vision measurement device disposed on the carrier for picturing an environment feature in an indoor environment where the carrier locates; and a controller receiving measuring results from the inertial measurement device and the vision measurement device to estimate a posture information, a location information and a velocity information of the carrier, and establishing a map having the environment feature. The controller estimates based on a corrected measuring result from one of the inertial measurement device and the vision measurement device, then controls the other one of the inertial measurement device and vision measurement device to measure, and accordingly corrects the posture, location and velocity information of the carrier and the map.
    Type: Application
    Filed: July 8, 2010
    Publication date: June 16, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chin-Lung Lee, Yen-Chung Chang, Hung-Hsiu Yu
  • Publication number: 20110144467
    Abstract: The present invention discloses a flexible 3D microprobe structure, which comprises at least one probe, a base and a hinge portion. The probe is connected to the base via the hinge portion. The probe forms a bend angle with respect to a normal of the base by attracting the probe through an electrostatic force to make the hinge portion bend with respect to the base, and thus to form a 3D structure having the bend angle. The probe, the base and the hinge portion are made of a flexible polymeric material to reduce the inflammation response of creatures. Further, a fixing element is used to enhance the structural strength of the flexible 3D microprobe structure.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 16, 2011
    Inventors: Da-Jeng YAO, Chang-Hsiao CHEN, Shih-Chang CHUANG, Yen-Chung CHANG
  • Publication number: 20110125001
    Abstract: The present invention discloses a method for assembling a 3D microelectrode structure. Firstly, 2D microelectrode arrays are stacked to form a 3D microelectrode array via an auxiliary tool. Then, the 3D microelectrode array is assembled to a carrier chip to form a 3D microelectrode structure. The present invention uses an identical auxiliary tool to assemble various types of 2D microelectrode arrays having different shapes of probes to the same carrier chip. Therefore, the method of the present invention increases the design flexibility of probes. The present invention also discloses a 3D microelectrode structure, which is fabricated according to the method of the present invention and used to perform 3D measurement of biological tissues.
    Type: Application
    Filed: November 25, 2009
    Publication date: May 26, 2011
    Inventors: Weileun FANG, Yu-Tao Lee, Yen-Chung Chang
  • Publication number: 20110042583
    Abstract: Live-cell imaging chambers are used in a wide range of cell biology research. Recently, chambers capable of taking high-resolution and time-lapse images of live cells have been developed and become commercially available. However, since most of these chambers are designed to maintain a thermally stable environment for the cells under study, it is usually very difficult to use them to study temperature-dependent cellular events. The present invention provides a live-cell observation equipment for a non light-transmitting microscope to study temperature-dependent events and method thereof.
    Type: Application
    Filed: August 19, 2009
    Publication date: February 24, 2011
    Applicant: NATIONAL TSING HUA UNIVERSITY
    Inventor: YEN-CHUNG CHANG
  • Publication number: 20080140195
    Abstract: A novel multifunctional nano-probe interface is proposed for applications in neural stimulation and detecting. The nano-probe interface structure consists of a carbon nanotube coated with a thin isolation layer, a micro-electrode substrate array, and a controller IC for neural cell recording and stimulation. The micro-electrode substrate array contains wires connecting the carbon nanotube with the controller IC, as well as microfluidic channels for supplying neural tissues with essential nutrition and medicine. The carbon nanotube is disposed on the micro-electrode substrate array made by silicon, coated with a thin isolation layer around thereof, and employed as a nano-probe for neural recording and stimulation.
    Type: Application
    Filed: July 11, 2007
    Publication date: June 12, 2008
    Applicant: NATIONAL TSING HUA UNIVERSITY
    Inventors: Huan-Chieh Su, Hsieh Chen, Hsin Chen, Yen-Chung Chang, Shih-Rung Yeh, Weileun Fang, Chien-Chung Fu, Shiang-Cheng Lu, Tri-Rung Yew
  • Patent number: 7375788
    Abstract: An LCD device (10) includes a liquid crystal layer (17) interposed between the first (11) and second (19) substrates, a sealant (18) disposed at a peripheral region of the LCD between the first and second substrates for sealing a space between the first and second substrates, and a color filter layer (123) at the first substrate opposite to the second substrate. Furthermore, a photo spacer pattern (15) including a plurality of photo spacers being provided at the color filter layer. The photo spacers are provided within the space and outside the sealant at peripheral portions of the first and second substrates. A distributive density of photo spacers (152) within the space near an interior side of the sealant is larger than a distributive density of photo spacers (153) within the space distal from the interior side of the sealant.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: May 20, 2008
    Assignee: Innolux Display Corp.
    Inventors: Ching-Wei Chiang, Yen-Chung Chang
  • Patent number: 7372691
    Abstract: A substrate attaching device (3) includes a vacuum chamber (31), a first electrostatic chuck (32) at least partly set in the vacuum chamber, and further includes a chuck body (321) with a plurality of gas releasing holes (322), a working table (33) stationable below the first electrostatic chuck in the vacuum chamber, a gas supply (34) communicating with the gas releasing holes, a pump device (35) communicating with the vacuum chamber, and a sub-vacuum (37) chamber communicating with both the vacuum chamber and the pump device.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: May 13, 2008
    Assignee: Innolux Display Corp.
    Inventors: Ching Wei Chiang, Yen Chung Chang
  • Publication number: 20050243261
    Abstract: An LCD device (10) includes a liquid crystal layer (17) interposed between the first (11) and second (19) substrates, a sealant (18) disposed at a peripheral region of the LCD between the first and second substrates for sealing a space between the first and second substrates, and a color filter layer (123) at the first substrate opposite to the second substrate. Furthermore, a photo spacer pattern (15) including a plurality of photo spacers being provided at the color filter layer. The photo spacers are provided within the space and outside the sealant at peripheral portions of the first and second substrates. A distributive density of photo spacers (152) within the space near an interior side of the sealant is larger than a distributive density of photo spacers (153) within the space distal from the interior side of the sealant.
    Type: Application
    Filed: May 2, 2005
    Publication date: November 3, 2005
    Inventors: Ching-Wei Chiang, Yen-Chung Chang
  • Publication number: 20050180088
    Abstract: A substrate attaching device (100) includes a first electrostatic chuck (30), a second electrostatic chuck (40) set below the first electrostatic chuck, and a controller (45). The controller alternately changes the polarity of a voltage applied on the second electrostatic chuck so as to eliminate static electricity on attached substrates (36, 46). Operation of the substrate attaching device does not carry micro-particles to the substrates. A method for attaching two substrates together using the substrate attaching device comprises: holding a first one of the substrates and a second one of the substrates to the first electrostatic chuck and the second electrostatic chuck, respectively; moving the first electrostatic chuck and the second electrostatic chuck closer together until the first substrate and the second substrate are attached together; and changing the polarity of a voltage applied on one of the first electrostatic chuck and the second electrostatic chuck alternately.
    Type: Application
    Filed: December 30, 2004
    Publication date: August 18, 2005
    Inventors: Ching-Wei Chiang, Yen-Chung Chang
  • Patent number: 6859255
    Abstract: A method of fabricating a liquid crystal display (LCD) panel. The LCD includes a first substrate positioned on an upper stage in a vacuum chamber, and a second substrate positioned on a lower stage in the vacuum chamber. A predetermined gap remains between the first substrate and the second substrate. The method includes vacuuming the vacuum chamber and horizontally aligning the first substrate with the second substrate. Following that, a first affixing process is performed to press a first portion of the first substrate on at least a dummy sealant on the second substrate. A second affixing process is then performed to press a second portion of the first substrate on a main sealant on the second substrate, thus completing combination of the first substrate and the second substrate.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: February 22, 2005
    Assignee: AU Optronics Corp.
    Inventors: Shih-Hong Liao, Yen-Chung Chang, Ying-Jyh Liao
  • Publication number: 20040114093
    Abstract: A method of fabricating a liquid crystal display (LCD) panel. The LCD includes a first substrate positioned on an upper stage in a vacuum chamber, and a second substrate positioned on a lower stage in the vacuum chamber. A predetermined gap remains between the first substrate and the second substrate. The method includes vacuuming the vacuum chamber and horizontally aligning the first substrate with the second substrate. Following that, a first affixing process is performed to press a first portion of the first substrate on at least a dummy sealant on the second substrate. A second affixing process is then performed to press a second portion of the first substrate on a main sealant on the second substrate, thus completing combination of the first substrate and the second substrate.
    Type: Application
    Filed: August 20, 2003
    Publication date: June 17, 2004
    Inventors: Shih-Hong Liao, Yen-Chung Chang, Ying-Jyh Liao