Patents by Inventor Chu-An Chang

Chu-An 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).

  • Patent number: 7784605
    Abstract: A supporting device includes a support body for supporting a substrate and an auxiliary wing for supporting the corner of the substrate, so that the substrate is substantially horizontally disposed on the supporting device. Also disclosed is a substrate transportation equipment including the supporting device and a movable protruding member. The substrate transportation equipment can prevent the movable protruding member from hitting the edge of the substrate when the movable protruding member moves.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: August 31, 2010
    Assignee: Motech Industries Inc.
    Inventor: Shun-Chu Chang
  • Patent number: 7782466
    Abstract: A method for out-of-plane displacement detection is disclosed. The out-of-plane displacement is detected by analyzing all the fringe density indexes calculated using the frequency-domain information extracted from a series of interference images of the sample vibrating at different frequencies. The present invention further discloses a method and an apparatus for resonant frequency identification by detecting the peak value of all the fringe indexes calculated at different scanning frequencies. With the identified resonant frequency, the full-field vibratory surface profile of the sample in various resonance modes can be reconstructed.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: August 24, 2010
    Assignee: Industrial Technology Research Insitute
    Inventors: Liang-Chia Chen, Chung-Chu Chang, Yao-Ting Huang, Jin-Liang Chen
  • Patent number: 7777425
    Abstract: A multi-lamp backlight system is disclosed. The multi-lamp backlight system includes a plurality of lamps, an inverter circuit and a current balance circuit. The inverter circuit is capable of converting a DC input signal to a pair of AC output signals, which have a 180 degree phase shift. The pair of AC output signals are delivered to the plurality of lamps. The current balance circuit is connected to the low voltage sides of the plurality of lamps for balancing the lamp currents.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: August 17, 2010
    Assignee: O2Micro International Limited
    Inventors: Houng-Kuo Hsu, Chu-Chang Chen, Ching-Chuan Kuo
  • Patent number: 7666377
    Abstract: The present invention discloses a method for removing carbon monoxide (CO) from a gas mixture containing CO including contacting the gas mixture with a nano-gold catalyst to reduce the CO content in the gas mixture by CO selective adsorption/oxidation, water gas shift reaction or CO selective oxidation reaction. The nano-gold catalyst includes a solid support and gold deposited on the support, wherein the deposited gold has a size less than 10 nm, and the support is a mixed metal hydroxide and oxide having the following formula: M(OH)qOy Wherein M is Ti, Fe, Co, Zr, or Ni; q is 0.1-1.5; and q+2y=z, wherein z is the valence of M.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: February 23, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Kuo-Ching Wu, Ching-Tang Lin, Chu-Chang Dai
  • Publication number: 20100039450
    Abstract: The present invention provides a circuit for controlling a color sequential liquid crystal display (LCD) and a method for controlling the same. The control circuit comprises a light-source driving circuit, a data driving circuit, and a scan driving circuit. The light-source driving circuit produces a driving signal for controlling the color sequential LCD to produce backlight with different colors. The data driving circuit produces a data signal and includes a plurality of data pulses. The scan driving signal produces a scan signal and includes a plurality of scan pulses corresponding to the plurality of data pulses, respectively. By controlling the pluralities of data pulses and scan pulses and the backlight, the color sequential LCD will display an image. The voltage levels of the pluralities of data pulses and scan pulses change according to different images. Thereby, power consumed by the control circuit can be reduced. In addition, color-mixing problems will be reduced according to the present invention.
    Type: Application
    Filed: October 20, 2008
    Publication date: February 18, 2010
    Inventors: Chih-Yu Lin, Chao-Chu Chang
  • Publication number: 20100039362
    Abstract: A control IC (integrated circuit) for color sequential liquid crystal displays (LCD) is revealed. The control IC includes an interface for receiving a command and at least one display data and a timing generator to generate a scan timing signal, a data timing signal, and a driving timing signal. According to the scan timing signal, a scan driving circuit generates a scan signal that is sent to the color sequential LCD. In accordance with the data timing signal, a data driving circuit receives the display data for generating a data signal sent to the color sequential LCD. According to the driving timing signal, a light-source driving circuit generates a plurality of driving signals sent to the color sequential LCD so as to generate a plurality of color backlights. In accordance with the scan signal, the data signal and the plurality of backlights, the color sequential LCD displays a frame.
    Type: Application
    Filed: October 20, 2008
    Publication date: February 18, 2010
    Inventors: Chin-Wei CHIEN, Ting-Long Kuo, Kai-Yi Wu, Chung-Yao Hu, Hong-Zhung Zhu, Chih-Yu Lin, Chao-Chu Chang, Chia-Jung Lin, Lung-Hui Wang
  • Patent number: 7661492
    Abstract: A motorized wheeled vehicle includes a support frame, a head tube secured on the support frame, a front fork pivotally mounted on the head tube, a front wheel rotatably mounted on the front fork, a steering tube pivotally mounted on the head tube and secured on the front fork, a speed reduction control switch mounted on the head tube and provided with a plurality of contact points, and a contact board mounted on the steering tube and movable relative to the speed reduction control switch to press or detach the contact points of the speed reduction control switch. Thus, the speed reduction control switch has a multi-stage and micro-adjustment speed reduction function so as to reduce the speed of the motorized wheeled vehicle gradually when the motorized wheeled vehicle is turned.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: February 16, 2010
    Assignee: Chienti Enterprise Co., Ltd.
    Inventor: Feng-Chu Chang
  • Publication number: 20090270776
    Abstract: A massage chair with function of stress relaxation and sleep inducing comprises a chair and a head cove. When sitting in the chair, the user can use the head cover to cover his head and then turn on the light emitting unit and the sound generating unit to send out light and sound that have the frequency as one or combination of the ?, ?, ? and ? brainwaves toward the user's eyes and ears synchronously. The light and sound wave are used to affect the user's brainwaves, and the music covers the boring sound wave, thus creating a happy and relaxed atmosphere for the user and guiding him into a desired state, such as relaxed yet alert state, shallow sleep state, deep sleep state, by guiding his brainwaves.
    Type: Application
    Filed: April 28, 2008
    Publication date: October 29, 2009
    Inventor: Hung-Chu Chang
  • Patent number: 7610170
    Abstract: A method for improving the measurement capability of multi-parameter inspection systems includes performing a measuring procedure to acquire a measured signature of a sample, calculating weighting factors representing a correlation between structural parameters of the sample by using a weighting algorithm, transforming the weighting factors into a sampling function by using a transforming rule, updating the measured signature to form an updated measured signature and generating a plurality of updated nominal signatures according to the sampling function, and comparing the updated measured signature and the updated nominal signatures to determine the structural parameters of the sample.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: October 27, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Chun Hung Ko, Yi Sha Kuo, Chung Chu Chang
  • Publication number: 20090260122
    Abstract: A layer structure for insulating thermal source includes a gel layer having two opposite faces each sequentially having an absorbent layer and a non woven material layer applied thereon. The layer structure is crisscross stitched such that multiple stitch lines are crisscross formed on the outer periphery of the layer structure for enhancing the layer structure. The absorbent layer is made of super absorbent polymer (SAP). The SAP is white or primrose neutral particle without toxicity and smell. The absorbent principle of the SAP is different from that of the foam rubber, the absorbent cotton or the like. The absorbent ability of the SAP is related to a chemical reaction such that the SAP is hard to be dehydrated due to an external force when the SAP absorbs water and forms an expanded gel.
    Type: Application
    Filed: April 17, 2008
    Publication date: October 22, 2009
    Inventors: Chin-Chu Chang, Nai-Sung Wen, Chin-Shu Wen
  • Publication number: 20090180124
    Abstract: A method and apparatus for identifying dynamic characteristics of a vibratory object is provided in the present invention, in which a series of dynamic interference images of the vibratory object is acquired through a frequency sweeping procedure and a two-dimensional image scanning procedure. Thereafter, the acquired images are processed for obtaining the corresponding differential fringe density index by signal processing technique of band-pass filtering method so as to further identify the dynamic characteristics of the vibratory object.
    Type: Application
    Filed: July 1, 2008
    Publication date: July 16, 2009
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL TAIPEI UNIVERSITY OF TECHNOLOGY
    Inventors: LIANG-CHIA CHEN, CHUNG-CHU CHANG, YAO-TING HUANG, JIN-LIANG CHEN
  • Patent number: 7534569
    Abstract: A method of generating a single-stranded nucleic acid molecule comprising (a) combining in a mixture under conditions suitable for a polymerase extension reaction, (i) a polymerase, (ii) an initial polynucleotide comprising a 5? portion and a 3? portion, wherein the polynucleotide forms the nucleic acid molecule 5? end; and (iii) a plurality of overlapping template oligonucleotides each having a 5? template portion and a 3? portion.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: May 19, 2009
    Assignee: Applied Biosystems, LLC
    Inventors: Chu-An Chang, Shiaw-Min Chen
  • Patent number: 7536265
    Abstract: The present invention relates to a signal analysis method for vibratory interferometry to identify the vibratory characteristics of an object under test. A vibratory stroboscopic interferometric signal of an object under vibration is obtained. The vibratory stroboscopic interferometric signal is analyzed with a deconvolution operation to obtain a reformed vibratory stroboscopic interferometric signal.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: May 19, 2009
    Assignees: Industrial Technology Research Institute, National Taipei University of Technology
    Inventors: Liang-Chia Chen, Chung-Chu Chang, Yao-Ting Huang, Jin-Liang Chen
  • Patent number: 7528478
    Abstract: An integrated circuit having post passivation interconnections with a second connection pattern is disclosed. A passivation layer (preferably made of a non-oxide material) is formed over the integrated circuit already having a first plurality of contact pads in a first connection pattern. A buffer layer is then formed over the passivation layer. The buffer layer preferably is a silicon oxide layer with a thickness substantially smaller than a thickness of the passivation layer. A post passivation metal layer is deposited over the buffer layer. A second plurality of contact pads as part of the second connection pattern is formed in the post passivation metal layer.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: May 5, 2009
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsi-Kuei Cheng, Hung-Ju Chien, Hsun-Chang Chan, Chu-Chang Chen, Ying-Lang Wang, Chin-Hao Su, Hsien-Ping Feng, Shih-Tzung Chang
  • Publication number: 20090030631
    Abstract: A method for improving the measurement capability of multi-parameter inspection systems includes performing a measuring procedure to acquire a measured signature of a sample, calculating weighting factors representing a correlation between structural parameters of the sample by using a weighting algorithm, transforming the weighting factors into a sampling function by using a transforming rule, updating the measured signature to form an updated measured signature and generating a plurality of updated nominal signatures according to the sampling function, and comparing the updated measured signature and the updated nominal signatures to determine the structural parameters of the sample.
    Type: Application
    Filed: September 20, 2007
    Publication date: January 29, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chun Hung Ko, Yi Sha Ku, Chung Chu Chang
  • Publication number: 20090010560
    Abstract: The present invention relates to a method for image calibration and an apparatus for image acquiring. In the method for image calibration, the image formation position for an image acquiring unit of the apparatus is calibrated according to the relative location of the image acquiring unit to a objective lens of the apparatus, wherein the relative location is determined by calculating the focus index of the image acquired by the image acquiring unit so that a clear and sharp interferogram can be obtained for three dimensional surface profile measuring. In addition, it is possible to obtain a clear and sharp image without any interference fringe outside the coherent range by adjusting the image formation position, which is capable of being utilized for two dimensional defect detection and dimension measurement.
    Type: Application
    Filed: March 31, 2008
    Publication date: January 8, 2009
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jin-Liang Chen, Shih-Hsuan Kuo, Chung-Chu Chang
  • Publication number: 20080304951
    Abstract: A supporting device includes a support body for supporting a substrate and an auxiliary wing for supporting the corner of the substrate, so that the substrate is substantially horizontally disposed on the supporting device. Also disclosed is a substrate transportation equipment including the supporting device and a movable protruding member. The substrate transportation equipment can prevent the movable protruding member from hitting the edge of the substrate when the movable protruding member moves.
    Type: Application
    Filed: August 6, 2007
    Publication date: December 11, 2008
    Inventor: Shun-Chu Chang
  • Publication number: 20080277214
    Abstract: An electromagnetic brake device includes a motor, a control mechanism and an operation unit. The control mechanism includes a fixed seat, an electromagnetic valve, a press button and a rotation plate. The operation unit includes a mounting tube, a locking bar, a push button, and an elastic member. Thus, a user only needs to press the push button to lock or unlock the operation unit and the control mechanism to control operation of the electromagnetic valve so as to control the braking operation of the brake disc, so that the electromagnetic brake device is operated easily and quickly, thereby facilitating the user operating the electromagnetic brake device.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 13, 2008
    Inventor: Feng-Chu Chang
  • Patent number: 7432464
    Abstract: A light guide (30) for illuminating a keypad (20) including a plurality of keys (22) includes a plurality of apertures (300) corresponding to the keys, and a plurality of slots (340). The slots are defined in a face of the light guide adjacent to the keypad.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: October 7, 2008
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Chien-An Chiu, Kuo-Chu Chang
  • Publication number: 20080243441
    Abstract: A signal analysis method for vibratory interferometry is disclosed in the present invention for measuring the vibratory characteristics of an object under test. The signal analysis method comprises steps of: obtaining a vibratory interferometric signal of an object under vibration; and analyzing the vibratory interferometric signal with a deconvolution operation to obtain a reformed vibratory interferometric signal.
    Type: Application
    Filed: September 28, 2007
    Publication date: October 2, 2008
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL TAIPEI UNIVERSITY OF TECHNOLOGY
    Inventors: Liang-Chia Chen, Chung-Chu Chang, Yao-Ting Huang, Jin-Liang Chen