Patents by Inventor Yuan Wang

Yuan Wang 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: 20110306792
    Abstract: The present invention relates to a process for preparing tolterodine and the L-tartrate thereof. The preparation consists of the following steps: A) ammonolysis reaction between diisopropylamine and compound 2 (3,4-dihydro-6-methyl-4-phenyl-2H-benzopyran-2-one) activated by an activator to afford the amide 3; B) reduction of the amide by a reductant to give compound 1, i.e., racemic tolterodine free base; C) Resolution of the tolterodine free base to afford tolterodine L-tartrate. The present route is very short and suitable for industrial production.
    Type: Application
    Filed: August 18, 2009
    Publication date: December 15, 2011
    Applicant: 2Y-CHEM, LTD.
    Inventors: Gang Wang, Jingzhong Zhang, Xungui He, Yuan Wang
  • Patent number: 8078131
    Abstract: A method for mitigating interference is provided. First, a received signal having a training sequence is received from a transmitter. Then, a Signal-to-Interference-plus-Noise Ratio (SINR) of the training sequence in the received signal is calculated, and whether a co-channel interference signal exists in the received signal is determined according to the SINR. The signal power corresponding to each time index in the received signal is calculated to detect a beginning time point and an ending time point of the co-channel interference signal. Finally, when the co-channel interference signal in the received signal is detected, the time when an interference cancellation filter is turned on is determined by the beginning time point and the ending time point.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: December 13, 2011
    Assignee: Sunplus mMobile Inc.
    Inventors: Xiu-Sheng Li, Shin-Lin Shieh, Shin-Yuan Wang
  • Patent number: 8072186
    Abstract: A USB charger circuit includes at least a converter, a control circuitry, a first resistor, a second resistor, an error amplifier, a sense resistor and a diode. The converter has a transistor. The control circuitry is coupled to the transistor. The control circuitry is used for producing a drive signal to the transistor. The first resistor is connected between the output node of the converter and a first node. The second resistor is connected between the first node and a second node. The error amplifier is coupled to receive a voltage divided by the first resistor and the second resistor to compare to a reference voltage. The sense resistor is connected between the second node and ground. The diode is connected between the output node of the converter and a first node.
    Type: Grant
    Filed: March 30, 2008
    Date of Patent: December 6, 2011
    Assignee: Addtek Corp.
    Inventors: Shih-Yuan Wang, Yung-Hsin Chiang, Yu-Ming Hsu
  • Publication number: 20110293656
    Abstract: The invention relates to recombinant MVA which is capable of expressing structural HCV antigens, functional parts of said structural antigens or epitopes of said structural antigens. The invention further relates to a pharmaceutical composition, especially in the form of a vaccine and containing the recombinant MVA according to the invention, to eukaryotic cells that contain the inventive recombinant MVA and to various uses of the recombinant MVA, for example for producing recombinant structural proteins, for producing a pharmaceutical preparation that is suitable for the therapy and prophylaxis of HCV infections and diseases thereby caused. The invention further relates to methods for producing recombinant MVA and recombinant structural HCV polypeptides encoded by said recombinant MVA, and to DNA or RNA of said recombinant MVA.
    Type: Application
    Filed: May 18, 2011
    Publication date: December 1, 2011
    Inventors: Gerd Sutter, Volker Erfle, Caroline Staib, Yuan Wang, Guangdi Li, Li-Xin Zhu
  • Publication number: 20110295595
    Abstract: The present invention relates to document processing method and apparatus which can edit a natural language and generate a machine-processable document; a template generating method and apparatus which can be used for document processing method and apparatus; a concept library generating method and apparatus which can be used for the document processing method and apparatus and the template generating method and apparatus. The present invention provided a possibility for semantic interaction of documents in different systems and enhances efficiency.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 1, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Feng Cao, Gang Hu, Jing Li, Zhong Li, Yong Liang Ren, Xiao Yuan Wang
  • Publication number: 20110286201
    Abstract: An embodiment of the invention discloses a wavelength converting system. The wavelength converting system comprises: a wavelength converter having a first area and a second area; a first light source disposed under the first area and inducing a first mixed light being visible above the first area; a second light source disposed under the second area and inducing a second mixed light being visible above the second area; and a carrier supporting the first light source and the second light source. The first light source and the second light source have a dominant wavelength difference of 1 nm˜20 nm, and the first mixed light and the second mixed light have a color temperature difference less than 100K.
    Type: Application
    Filed: August 1, 2011
    Publication date: November 24, 2011
    Inventors: Chien-Yuan WANG, Min-Hsun Hsieh, Chih-Chiang Lu
  • Patent number: 8064511
    Abstract: This invention relates to an equalization apparatus, an equalization method and a receiver using the same. Two equalizers are applied to the equalization apparatus to cover two clusters of a channel. The weights of the two equalizers are calculated by channel gains of the whole channel based on the minimum mean square error criterion. Therefore the interference of the whole channel due to different clusters can be reduced enormously.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: November 22, 2011
    Assignee: Sunplus mMobile Inc.
    Inventors: Po-Ying Chen, Shin-Yuan Wang
  • Patent number: 8063395
    Abstract: A nanoscale switching device comprises at least two electrodes, each of a nanoscale width; and an active region disposed between and in electrical contact with the electrodes, the active region containing a switching material capable of carrying a species of dopants and transporting the dopants under an electrical field, wherein at least one of the electrodes comprises an amorphous conductive material.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: November 22, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Qiangfei Xia, Jianhua Yang, Shih-Yuan Wang
  • Publication number: 20110272669
    Abstract: A light emitting diode (100 or 150) includes a diode structure containing a quantum well (120), an enhancement layer (142), and a barrier layer (144 or 148) between the enhancement layer (142) and the quantum well (120). The enhancement layer (142) supports plasmon oscillations at a frequency that couples to photons produced by combination of electrons and holes in the quantum well (120). The barrier layer serves to block diffusion between the enhancement layer (142) and the diode structure.
    Type: Application
    Filed: January 30, 2009
    Publication date: November 10, 2011
    Inventors: Michael R. T. Tan, David A. Fattal, Marco Fiorentino, Shih-Yuan Wang
  • Publication number: 20110272014
    Abstract: A photovoltaic structure of a photovoltaic cell and a method of fabricating a photovoltaic structure, employ a nanowire having a base connected to a stub and an electrical isolation layer surrounding the stub. The stub is a constituent of a substrate surface. The nanowire extends away from the substrate surface and is wider than the stub. The nanowire base overlies a part of the isolation layer that is adjacent to the stub. A semiconductor junction comprises the nanowire. The method includes forming the stub; growing the nanowire from the stub; and conformally coating the nanowire. A nanoparticle is applied to the substrate surface. The isolation layer is created on and embedded in the substrate surface using the nanoparticle as a mask. A portion of the substrate surface underlying the nanoparticle forms the stub. The nanoparticle catalyzes nanowire growth on the stub. The stub is narrower than the nanoparticle.
    Type: Application
    Filed: December 19, 2008
    Publication date: November 10, 2011
    Inventors: Sagi V. Mathai, Nobuhiko P. Kobayashi, Shih-Yuan Wang
  • Publication number: 20110273755
    Abstract: Various embodiments of the present invention relate to systems that can be used as holograms and can be electronically controlled and dynamically reconfigured to generate three-dimensional motion picture images. In one embodiment, a dynamically reconfigurable hologram (1200) comprises a phase-control layer (1202) including a two-dimensional array of phase-modulation pixels (1212). The hologram also comprises an intensity-control layer (1204) including a two-dimensional array of intensity-control pixels (1214). One or more three-dimensional motion pictures can be produced by electronically addressing the individual phase-modulation pixels and intensity-control pixels in order to phase and control the intensity of light emanating from pixels of the hologram.
    Type: Application
    Filed: December 29, 2008
    Publication date: November 10, 2011
    Inventors: Shih-Yuan Wang, Alexandre M. Bratkovski, R. Stanley Williams, Jingjing Li, Wei Wu, Philip J. Kuekes
  • Publication number: 20110273756
    Abstract: Various embodiments of the present invention relate to dynamically reconfigurable hologram comprising a phase-modulation layer and an intensity-control layer. The phase modulation layer comprises an electronically programmable erasable negative index material crossbar. The crossbar includes a first layer of approximately parallel nanowires (502) and a second layer of approximately parallel nanowires (504) that overlay the nanowires in the first layer. The nanowires in the first and second layers have substantially regularly spaced fingers. The crossbar also includes resonant elements (812) comprising a chalcogenide-based layer (1000) sandwiched between the nanowire in the first layer and the nanowire in the second layer.
    Type: Application
    Filed: December 29, 2008
    Publication date: November 10, 2011
    Inventors: Shih-Yuan Wang, Lars Helge Thylen, Alexandre M. Bratkovski, Jingjing Li, Wei Wu
  • Patent number: 8054409
    Abstract: A light-emitting device including a light-spreading device having a wing-shaped protrusion part, a light-entering surface that includes an uneven surface, and a recess located away from the light-entering surface; an optoelectronic device disposed under the uneven surface and emitting light towards the light-entering surface; and a wavelength-converting material formed on a path along light traveling from the optoelectronic device. The device may additionally include a liquid crystal layer for controlling light flux from the light-spreading device; a color filter layer including a plurality of pixels provided adjacent to the liquid crystal layer. The device may be a liquid crystal display having a backlight module, a liquid crystal layer, and a color filter layer. An ultraviolet unit for emitting ultraviolet light may be disposed in the backlight module. At least one pixel may be filled with a wavelength-converting material that can convert ultraviolet light into green light.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: November 8, 2011
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chien-Yuan Wang
  • Patent number: 8054461
    Abstract: Various embodiments of the present invention relate generally to systems for performing Raman spectroscopy. In one embodiment, a system for performing Raman spectroscopy comprises an analyte holder having a surface configured to retain an analyte and a light concentrator configured to receive an incident beam of light, split the incident beam into one or more beams, and direct the one or more beams to substantially intersect at the surface. The system may also include a collector configured to focus each of the one or more beams onto the surface, collect the Raman scattered light emitted from the analyte, and direct the Raman scattered light away from the surface.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 8, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Huei Pei Kuo, Jing Tang, Alexandre M. Bratkovski, Theodore I. Kamins, Wei Wu, Michael Renne Ty Tan, Shih-Yuan Wang
  • Patent number: 8053982
    Abstract: One embodiment of the present invention relates to a light-emitting diode having one or more light-emitting layers, a pair of electrodes disposed on the light-emitting diode so that an operating voltage can be applied to generate light from the one or more light-emitting layers, and at least one external electrode in electronic communication with the one or more light-emitting layers. Applying an appropriate voltage to the at least one external electrodes at about the time the operating voltage is terminated extracts excess electrons from the one or more light-emitting layers and reduces the duration of electron-hole recombination during the time period over which the operating voltage is turned off.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: November 8, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexandre Bratkovski, Shih-Yuan Wang, Michael Tan, Theodore I. Kamins
  • Patent number: 8052016
    Abstract: A dual tube container with one way valves comprises an outer tube and a cap, wherein, the tube head of the outer tube is provided with a base plate; the base plate is provided with a left through hole and a right through hole connecting the outer tube and the inner tube; a connector extends downwards from the right through hole, and the inner tube body in the outer tube body is connected to the connector to form the inner tube; a pair of one way valves are fixed in the tube head; an applicator with a orifice is inserted into the tube head; when the cap is put on to close the tube head, the pintle or elastic gasket in the cap sealing the orifice on the daub part of the applicator to prevent the leaking of liquid contents. It is provided with a pair of one way valves, and the inner tube is fixed in the outer tube; via the opening or closing of the pair of one way valves, the contents of the outer tube and the inner tube are permitted or forbidden to flow out.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: November 8, 2011
    Assignee: UDN Packaging Corp.
    Inventor: Ming Yuan Wang
  • Patent number: 8054531
    Abstract: Various embodiments of the present invention are directed to micro-electro-mechanical systems and photonic interconnects employing micro-electro-mechanical systems. One micro-electro-mechanical system embodiment of the present invention includes a lens structure and an actuator. The lens structure includes a substantially transparent membrane having a flexible, curved surface, and a reservoir holding fluid that is fluidly coupled to the membrane. The actuator system is operably coupled to the reservoir in order to exert pressure on the fluid to change the curvature of the membrane and the focal point of the lens structure.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: November 8, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shih-Yuan Wang, R. Stanley Williams, Terrel L. Morris, Mihail Sigalas
  • Patent number: 8049436
    Abstract: A dimmer and a lighting apparatus are provided. The dimmer apparatus includes a rectifier unit, a controller, a voltage divider and a voltage converter. The rectifier unit rectifies an AC power and generates a first operating voltage. The voltage divider outputs a voltage division of the first operating voltage. The controller integrates the voltage division to obtain an average voltage, and provides a pulse width modulation (PWM) signal based on the average voltage. The voltage converter drives a light emitting diode (LED), and adjusts a driving voltage and a driving current of the LED according to the PWM signal. Wherein, the controller also adjusts the PWM signal according to a feedback signal generated by the voltage converter.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: November 1, 2011
    Assignee: Cal-Comp Electronics & Communications Company Limited
    Inventors: Hao-Yuan Wang, Hsien-Chung Chen, Kwan Ho
  • Publication number: 20110261208
    Abstract: A method of automatically calibrating a visual parameter, such as luminance or contrast, for an imaging device is disclosed. A ratio of visual parameter difference to lens position difference between two predetermined lens positions is pre-determined for a predetermined focal length. A target visual parameter is then obtained according to the pre-determined ratio, a current visual parameter and lens position difference between a current lens position and a target lens position. Finally, the current visual parameter is updated by the target visual parameter in an automatic mode.
    Type: Application
    Filed: April 27, 2010
    Publication date: October 27, 2011
    Applicant: ABILITY ENTERPRISE CO., LTD.
    Inventors: CHIH-YUAN WANG, CHENG-CHANG WU
  • Patent number: 8044381
    Abstract: A light-emitting diode (LED) includes a p-type layer, an n-type layer, and an active layer arranged between the p-type layer and the n-type layer. The active layer includes at least one quantum well adjacent to at least one modulation-doped layer. Alternatively, or in addition thereto, at least one surface of the n-type layer or the p-type layer is texturized to form a textured surface facing the active layer.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: October 25, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael Renne Ty Tan, Shih-Yuan Wang, Alexandre M. Bratkovski, David A. Fattal