Patents by Inventor Sheng Hong

Sheng Hong 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).

  • Transitioning between modes of control for motor of recording device
    Patent number: 8339727
    Abstract: The present disclosure includes systems and techniques relating to control of recording devices, such as disk drives. A described technique includes controlling a motor to actuate a head about a surface of a rotating recording medium, the motor being associated with first and second states of electric current, where a duration of the first state is longer than a duration of the second state; detecting an instance of the first state; and initiating, when the instance of the first state is detected, a switch from a first mode to a second mode to control the motor. The switch can be based on a condition of operation with respect to the rotating recording medium.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: December 25, 2012
    Assignee: Marvell International Ltd.
    Inventors: Jye Sheng Hong, Siew Yong Chui
  • Voice coil motor control system and method
    Patent number: 8283882
    Abstract: Analog control of the pulse width used to control the speed of a voice coil motor may be implemented using a “constant-current-charging-capacitor” configuration where the time needed to charge the capacitor is directly related to how far the actual motor speed is from the target speed. The BEMF voltage, indicative of motor speed, is sampled, and then stored in a storage capacitor, which is allowed to charge/discharge to a target voltage level. The time required to charge/discharge the capacitor to the target voltage is directly proportional to the difference between the BEMF voltage and the target voltage, and may be used directly as the pulse width (i.e., the charging time) in the PWM velocity control system. To avoid larger capacitors, a pulse multiplier circuit can be added, allowing charging/discharging the sampled voltage to the target voltage to be repeated by a number, N, of times.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: October 9, 2012
    Assignee: Marvell International Ltd.
    Inventors: Jye Sheng Hong, Siew Yong Chui
  • Method of Treating Aromatic L-Amino Acid Decarboxylase (AADC) Deficiency Using Adeno-Associated Virus (AAV)-AADC Vector
    Publication number: 20120220648
    Abstract: An adeno-associated virus (AAV) vector is used for treating aromatic L-amino acid decarboxylase (AADC) deficiency. The AAV vector is directly injected into human brain through a stereotactic technique. Activity of AADV is thus recovered for solving the problem of movement disorder.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 30, 2012
    Applicant: NATIONAL TAIWAN UNIVERSITY HOSPITAL
    Inventors: Wuh-Liang Hwu, Sheng-Hong Tseng
  • ARTIFICIAL DURA BIOMEDICAL DEVICE AND BRAIN SURGERY METHOD UTILIZING THE SAME
    Publication number: 20120215322
    Abstract: An artificial dura biomedical device and a brain surgery method utilizing the same are disclosed. The steps includes: fixing an artificial dura to a partial skull; and fixing the partial skull with the artificial dura to a cut hole of a whole skull. The artificial dura biomedical device includes an artificial dura and a connecting element. The connecting element fixes the partial skull with the artificial dura.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 23, 2012
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chun-Jen LIAO, Sheng-Hong TSENG, Huang-Chien LIANG, Chun-Hung CHEN, Yi-Chun SU
  • Method for Providing a Side-Chain Dendrimer Vesicle
    Publication number: 20120130022
    Abstract: A method for making a side-chain dendrimer vesicle includes the following steps. At first, there is provided a random copolymer with a narrow distribution of molecular weights by active polymerization and chemical modification. Then, chemical modification is executed to graft various generations of dendrimers to the random copolymer to provide a side-chain dendritic random copolymer with various generations. Two steps of emulsification are taken to induce macromolecular self-assembling of the side-chain dendritic random copolymer solution to form the macromolecular vesicle. The side-chain dendrimer includes C10˜C18 hydrophobic alkyl chains.
    Type: Application
    Filed: May 7, 2011
    Publication date: May 24, 2012
    Inventors: Wen-Chiung Su, Wei-Ho Ting, Mao-Syong Lin, Chia-Cheng Chang, Hsin-Cheng Chiu, Sheng-hong Dai, Ru-Jong Jeng
  • Dendron, polyurethane with side-chain regular dendron, and producing methods thereof
    Patent number: 8173760
    Abstract: Methods for producing dendrons of different generations with hydrophobic functional end-groups, and for producing polyurethanes with the side-chain dendrons are disclosed step-by-step. The dendron with hydrophobic functional end-groups in the polyurethane systems, and the honeycomb-like structure thin films are obtained by a breath-figure process. The structures of dendrons and dendritic side-chain polyurethanes are respectively expressed in the following and the end-groups (R) of the dendron are long alkyl chains or perfluoroalkyl derivatives.
    Type: Grant
    Filed: February 28, 2010
    Date of Patent: May 8, 2012
    Assignee: Chung-Shan Institute of Science and Technology, Armaments Bureau, Ministry of National Defense
    Inventors: Wen-Chiung Su, Wei-Ho Ting, Chun-Ming Yeh, Chia-Cheng Chang, Sheng-Hong Dai, Ru-Jong Jeng
  • LIGHT THERAPY DEVICE
    Publication number: 20120088204
    Abstract: A light therapy device includes a main body, a light-emitting portion and a power supply unit. The light-emitting portion is disposed on the main body. The light-emitting portion has a first light source. The first light source provides light with a specific wavelength and with an energy ranged from 0.01 J/cm2 to 10 J/cm2. The power supply unit is electrically connected to the main body, and is configured for providing the light-emitting portion with electric power. The light therapy device is used to irradiate teeth and periodontal cells, which can accelerate regeneration of teeth bone cells and gum tissues and inhibit bacteria, thereby achieving the therapeutic effect.
    Type: Application
    Filed: October 11, 2010
    Publication date: April 12, 2012
    Applicants: Jetts Technology Co., Ltd.
    Inventors: Ming-Hua Ho, Lu-Sheng Hong, Hsian-Shin Yu
  • Operating mode detection in a flyback converter
    Patent number: 8154889
    Abstract: Particular embodiments generally relate to detecting an operating mode of a flyback converter. In one embodiment, a voltage of a flyback converter is measured. A waveform for the voltage includes a first rate of change when the flyback converter is in a first mode of operation and a second rate of change when the flyback converter is in a second mode of operation. The presence of the first rate of change or the second rate of change is detected based on the waveform. The first mode of operation or the second mode of operation is determined depending on whether the first rate of change or the second rate of change is detected.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: April 10, 2012
    Assignee: Marvell International Ltd.
    Inventor: Jye Sheng Hong
  • METHOD FOR ENHANCING VIABILITY OF PERIODONTAL TISSUE CELLS
    Publication number: 20120045738
    Abstract: In a method for enhancing viability of periodontal tissue cells associated with more than one tooth, the periodontal tissue cells are irradiated simultaneously by an LED (light emitting diode) module having a light emitting range covering the associated teeth, wherein the irradiating energy is between 0.1 J/cm2 and 10 J/cm2.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 23, 2012
    Applicants: Jetts Technology Co., LTD.
    Inventors: MING-HUA HO, Lu-Sheng Hong, Hsian-Shin Yu
  • Transitioning between modes of control for motor of recording device
    Patent number: 8107187
    Abstract: The present disclosure includes systems and techniques relating to control of recording devices, such as disk drives. Systems and techniques can include controlling a motor to actuate a head about a surface of a rotating recording medium, switching from a first mode to a second mode to control the motor based on a condition of operation with respect to the rotating recording medium, and synchronizing the switch from the first mode to the second mode based on a state of electric current associated with the motor.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: January 31, 2012
    Assignee: Marvell International Ltd.
    Inventors: Jye Sheng Hong, Siew Yong Chui
  • DENDRON, POLYURETHANE WITH SIDE-CHAIN REGULAR DENDRON, AND PRODUCING METHODS THEREOF
    Publication number: 20110213114
    Abstract: A dendron with hydrophobic functional of end group, a polyurethane with the dendron, and producing methods thereof are disclosed. The dendron with hydrophobic functional of end group in the polyurethane systems, and the honeycomb-like structure thin films were obtained by a breath-figure process. The structures of dendron and dendritic side-chain polyurethanes are respectively expressed in the following. Therein, the end-groups (R) of the dendron are long alkyl chains or perfluoroalkyl derivatives.
    Type: Application
    Filed: February 28, 2010
    Publication date: September 1, 2011
    Inventors: WEN-CHIUNG SU, Wei-Ho Ting, Chun-Ming Yeh, Chia-Cheng Chang, Sheng-Hong Dai, Ru-Jong Jeng
  • STABILIZATION METHOD FOR VIBRATING VIDEO FRAMES
    Publication number: 20110134329
    Abstract: A method of performing video stabilization may be applied to unstable frames captured by a vibrating camera. The method includes checking if the frame is vibrating and calculating a degree of vibration for compensating a vibration area. Based on block motion estimation, a feature block selected from nine fixed observation blocks is used to obtain a vibration vector. The vibration vector is used to adjust the vibration frame for restoring the frame.
    Type: Application
    Filed: June 4, 2010
    Publication date: June 9, 2011
    Inventors: Chao-Ho Chen, Jie-Ru Chen, Sheng-Hong Wang, Cheng-Chieh Liu
  • FOAMY BIOMATERIAL FOR BIOLOGICAL TISSUE REPAIR
    Publication number: 20110117199
    Abstract: A kit for producing a foamed biocompatible material includes a container configured to sustain a high pressure, and a tissue-repair composition placed in the container. The composition contains a biocompatible material, a liquid carrier, and a gas. The container has an internal pressure of greater than 1 atm and less than 250 atm, and includes a valve and a nuzzle for releasing from the nuzzle a foam formed of the composition upon opening the valve. Methods of producing and applying the biocompatible material are also disclosed.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Applicant: Industrial Technology Research Institute
    Inventors: Chun-Jen Liao, Sheng-Hong Tseng, Huang-Chien Liang, Yi-Chun Su, Pei-Chi Hsu
  • Manufacturing method of solar cell
    Patent number: 7927910
    Abstract: The present invention discloses a method of manufacturing a solar cell by forming two electrode layers on the same side of a wafer, and avoiding sunlight incident to another side from being blocked by the electrode layers to enhance the photoelectric conversion efficiency, and each electrode layer is formed by using a mask layer to perform a vapor deposition process, without requiring any mask lithography or etching process. Of course, the issue of a high-temperature process that deteriorates the quality of the wafer no longer exists.
    Type: Grant
    Filed: June 28, 2009
    Date of Patent: April 19, 2011
    Assignees: Sino-American Silicon Products Inc.
    Inventors: Lu-Sheng Hong, Wen-Ching Hsu, Szu-Hua Ho
  • Voice-coil motor control with zero-current sensing
    Patent number: 7923954
    Abstract: A circuit for controlling a voice-coil motor (VCM) may incorporate a pulse-width modulation driver to drive the VCM, a zero-current detector to determine whether the current across the VCM is zero, and a Back-EMF voltage detector to measure the voltage across the VCM when the current across the VCM is determined to be zero. The circuit may determine the current velocity of the VCM and use this information to control the velocity of the VCM.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: April 12, 2011
    Assignee: Marvell International Ltd.
    Inventors: Siew Yong Chui, Jye Sheng Hong
  • Method of ramp stop detection for VCM velocity-controlled retract
    Patent number: 7924526
    Abstract: A method and apparatus for controlling the parking of a transducer head in a disk drive. A drive current is provided to a motor which controls movement of the head in a direction to move the head to a parking position. The arrival of the head at the parking position is detected. Upon this detection, a drive stop sequence is initiated to stop providing the drive current a short time after the head reaches the parking position. In one embodiment, it is determined whether the head has reached the parking position by monitoring the back emf (bemf) of the motor controlling the head, typically a voice coil motor (VCM). The detection of a sharp decline in the bemf indicates the head has stopped.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: April 12, 2011
    Assignee: Marvell International Ltd.
    Inventors: Siew Yong Chui, Edy Susanto, Jye Sheng Hong
  • Manufacturing Method of Solar Cell
    Publication number: 20100330730
    Abstract: The present invention discloses a method of manufacturing a solar cell by forming two electrode layers on the same side of a wafer, and avoiding sunlight incident to another side from being blocked by the electrode layers to enhance the photoelectric conversion efficiency, and each electrode layer is formed by using a mask layer to perform a vapor deposition process, without requiring any mask lithography or etching process. Of course, the issue of a high-temperature process that deteriorates the quality of the wafer no longer exists.
    Type: Application
    Filed: June 28, 2009
    Publication date: December 30, 2010
    Inventors: Lu-Sheng HONG, Wen-Ching Hsu, Szu-Hua Ho
  • Voice coil motor control system and method
    Patent number: 7852028
    Abstract: Analog control of the pulse width used to control the speed of a voice coil motor may be implemented using a “constant-current-charging-capacitor” configuration where the time needed to charge the capacitor is directly related to how far the actual motor speed is from the target speed. The BEMF voltage, indicative of motor speed, is sampled, and then stored in a storage capacitor, which is allowed to charge/discharge to a target voltage level. The time required to charge/discharge the capacitor to the target voltage is directly proportional to the difference between the BEMF voltage and the target voltage, and may be used directly as the pulse width (i.e., the charging time) in the PWM velocity control system. To avoid larger capacitors, a pulse multiplier circuit can be added, allowing charging/discharging the sampled voltage to the target voltage to be repeated by a number, N, of times.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: December 14, 2010
    Assignee: Marvell International Ltd.
    Inventors: Jye Sheng Hong, Siew Yong Chui
  • ARTIFICIAL DURA BIOMEDICAL DEVICE AND BRAIN SURGERY METHOD UTILIZING THE SAME
    Publication number: 20100168871
    Abstract: An artificial dura biomedical device and a brain surgery method utilizing the same are disclosed. The steps includes: fixing an artificial dura to a partial skull; and fixing the partial skull with the artificial dura to a cut hole of a whole skull. The artificial dura biomedical device includes an artificial dura and a connecting element. The connecting element fixes the partial skull with the artificial dura.
    Type: Application
    Filed: December 30, 2009
    Publication date: July 1, 2010
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, NATIONAL TAIWAN UNIVERSITY HOSPITAL
    Inventors: Chun-Jen Liao, Sheng-Hong Tseng, Huang-Chien Liang, Chun-Hung Chen, Yi-Chun Su
  • FM chip antenna
    Patent number: 7733292
    Abstract: A frequency modulation (FM) chip antenna having a microwave base board printed thereon with a helical radiation metallic member of a single layer or multiple layers, the microwave base board is provided with a feeding point and a grounding point to receive energy in the mode of electromagnetic wave coupling.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: June 8, 2010
    Assignee: Auden Techno Corp.
    Inventors: Chia-Lun Tang, Sheng-Hong Wang