Patents by Inventor Weiping Wang

Weiping 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).

  • Patent number: 6914482
    Abstract: A power amplifier module for amplifying radio frequency signals includes a radio frequency power amplifier including one or more semiconductor transistors, adapted to receive an input radio frequency signal and power control signals, and to output an amplified radio frequency signal. The power amplifier module is integrated with input and output impedance matching networks and a power sensor that is adapted to receive the amplified radio frequency signal and to output a signal indicating the power output level of the power amplifier module. The power amplifier module also includes control logic in accordance to at least one of the qualities and the power level of the amplified radio frequency signal.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: July 5, 2005
    Assignee: Micro Mobio Corp.
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
  • Publication number: 20050140436
    Abstract: A power amplifier module for amplifying radio frequency signals includes first and second radio frequency power amplifiers with one or more semiconductor transistors, adapted to receive an input radio frequency signal and a processed power-sensing control signal and to output an amplified radio frequency signal; first and second power-sensing circuits each coupled to said first and second radio frequency power amplifiers and adapted to receive each amplified radio frequency signal and to output the power-sensing control signal; and control logic that receives and processes the power-sensing control signals, and outputs a processed power-sensing control signal in response to each quality or magnitude of each amplified radio frequency signal.
    Type: Application
    Filed: February 24, 2005
    Publication date: June 30, 2005
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
  • Patent number: 6912446
    Abstract: A method for repairing an airfoil comprising creating a nominal numerically-controlled tool path based on a nominal shape of the airfoil, measuring the airfoil using a displacement sensor, capturing differences in the airfoil shape as compared to the nominal shape, creating a three-dimensional map by synchronizing x, y and z coordinates and readings from the sensor, modifying the tool path based on the three-dimensional map, and machining the airfoil. A system for measuring and machining an airfoil comprising a computer operable for data acquisition and numerically-controlled tool path generation, a numerically-controlled machine, a cutting tool holder comprising a plurality of cutting tools, and a displacement-sensing probe.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: June 28, 2005
    Assignee: General Electric Company
    Inventors: Weiping Wang, Martin Kin-Fei Lee, Bin Wei
  • Publication number: 20050122167
    Abstract: A power amplifier module for amplifying radio frequency signals includes a radio frequency power amplifier including one or more semiconductor transistors, adapted to receive an input radio frequency signal and power control signals, and to output an amplified radio frequency signal. The power amplifier module is integrated with input and output impedance matching networks and a power sensor that is adapted to receive the amplified radio frequency signal and to output a signal indicating the power output level of the power amplifier module. The power amplifier module also includes control logic in accordance to at least one of the qualities and the power level of the amplified radio frequency signal.
    Type: Application
    Filed: January 19, 2005
    Publication date: June 9, 2005
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
  • Publication number: 20050069008
    Abstract: A one dimension all-metal slab waveguide gas laser comprises a slab waveguide gas discharge area and an optical resonator disposed in a metal vacuum chamber. The gas discharge area is formed by a top and a bottom metal electrodes and metal supporting blocks insolated with the electrodes. A metal liner plate and a metal press plate are sequentially disposed on upside of the metal electrodes. A metal supporting plate is disposed at underside of the metal electrodes. The metal top electrodes are connected with a supply power through link pins of the metal electrodes. An output mirror and a feedback mirror are respectively arranged at two sides of the optical resonator. An output window of the laser is disposed in the vacuum chamber.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 31, 2005
    Inventors: Jianguo Xin, Jiangxing Wu, Zhiyuan Zhang, Weiping Wang
  • Publication number: 20050030101
    Abstract: An amplifier circuit for amplifying radio frequency signals having temperature compensation and bias compensation includes a radio frequency power amplifier that receives an input radio frequency signal and outputs an amplified radio frequency signal, and a first transistor performing as a detector diode with its collector and base connected. The base of the first transistor receives the amplified radio frequency signal from the power amplifier, a second DC bias input signal from a regulated DC source, and a third power-sensing signal. The amplifier circuit further includes a second transistor to amplify the DC component of the RF signal from the base of the first transistor. The base of the second transistor is coupled to the base of the first transistor. The collector of the second transistor outputs the power-sensing signal, which is coupled to the regulated DC source through a resistor.
    Type: Application
    Filed: September 10, 2004
    Publication date: February 10, 2005
    Inventors: Ikuroh Ichitsuho, Weiping Wang
  • Patent number: 6847262
    Abstract: A power amplifier module for amplifying radio frequency signals includes first, second, third and fourth corner ground pads positioned at each corner of the power amplifier module; a radio frequency input pad positioned between the first and second corner ground pads; a radio frequency output pad positioned between the third and fourth corner ground pads; and a power amplifier circuit centrally positioned on the power amplifier module, the power amplifier having an input coupled to the radio frequency input pad and an output coupled to the radio frequency output pad.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: January 25, 2005
    Assignee: Micro Mobio Inc.
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
  • Publication number: 20040232982
    Abstract: Systems and methods are disclosed for a device with an active substrate comprising substantially transistors or diodes formed thereon, the active substrate having at least a power amplifier formed thereon; a passive substrate comprising substantially inductors, capacitors or resistors formed thereon; a plurality of bonding pads positioned on the active and passive substrates; and bonding wires connected to the bonding pads.
    Type: Application
    Filed: May 10, 2004
    Publication date: November 25, 2004
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
  • Patent number: 6822515
    Abstract: An amplifier circuit for amplifying radio frequency signals having temperature compensation and bias compensation includes a radio frequency power amplifier that receives an input radio frequency signal and outputs an amplified radio frequency signal, and a first transistor performing as a detector diode with its collector and base connected. The base of the first transistor receives the amplified radio frequency signal from the power amplifier, a second DC bias input signal from a regulated DC source, and a third power-sensing signal. The amplifier circuit further includes a second transistor to amplify the DC component of the RF signal from the base of the first transistor. The base of the second transistor is coupled to the base of the first transistor. The collector of the second transistor outputs the power-sensing signal, which is coupled to the regulated DC source through a resistor.
    Type: Grant
    Filed: March 9, 2003
    Date of Patent: November 23, 2004
    Inventors: Ikuroh Ichitsubo, Weiping Wang
  • Publication number: 20040222850
    Abstract: A power amplifier module for amplifying radio frequency signals includes first, second, third and fourth corner ground pads positioned at each corner of the power amplifier module; a radio frequency input pad positioned between the first and second corner ground pads; a radio frequency output pad positioned between the third and fourth corner ground pads; and a power amplifier circuit centrally positioned on the power amplifier module, the power amplifier having an input coupled to the radio frequency input pad and an output coupled to the radio frequency output pad.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 11, 2004
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
  • Publication number: 20040207467
    Abstract: A power amplifier module for amplifying radio frequency signals includes a radio frequency power amplifier including one or more semiconductor transistors, adapted to receive an input radio frequency signal and power control signals, and to output an amplified radio frequency signal. The power amplifier module is integrated with input and output impedance matching networks and a power sensor that is adapted to receive the amplified radio frequency signal and to output a signal indicating the power output level of the power amplifier module. The power amplifier module also includes control logic in accordance to at least one of the qualities and the power level of the amplified radio frequency signal.
    Type: Application
    Filed: May 10, 2004
    Publication date: October 21, 2004
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
  • Patent number: 6774718
    Abstract: A power amplifier module for amplifying radio frequency signals includes a radio frequency power amplifier including one or more semiconductor transistors, adapted to receive an input radio frequency signal and power control signals, and to output an amplified radio frequency signal. The power amplifier module is integrated with input and output impedance matching networks and a power sensor that is adapted to receive the amplified radio frequency signal and to output a signal indicating the power output level of the power amplifier module. The power amplifier module also includes control logic in accordance to at least one of the qualities and the power level of the amplified radio frequency signal.
    Type: Grant
    Filed: March 9, 2003
    Date of Patent: August 10, 2004
    Assignee: Micro Mobio Inc.
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
  • Publication number: 20040083024
    Abstract: A method for repairing an airfoil comprising creating a nominal numerically-controlled tool path based on a nominal shape of the airfoil, measuring the airfoil using a displacement sensor, capturing differences in the airfoil shape as compared to the nominal shape, creating a three-dimensional map by synchronizing x, y and z coordinates and readings from the sensor, modifying the tool path based on the three-dimensional map, and machining the airfoil. A system for measuring and machining an airfoil comprising a computer operable for data acquisition and numerically-controlled tool path generation, a numerically-controlled machine, a cutting tool holder comprising a plurality of cutting tools, and a displacement-sensing probe.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 29, 2004
    Inventor: Weiping Wang
  • Patent number: 6708728
    Abstract: A process for lining an existing pipeline or conduit with a flexible resin impregnated cured in place liner by pulling in the liner and inflating an eversion bladder with air and curing the liner with flow-through steam without loss of pressure is provided. The liner includes a resin absorbent material in tubular form with an impermeable membrane forming an outer layer. The absorbent material is saturated with a thermoset resin and pulled into the existing conduit. A flexible inflation bladder is passed through a gland mounted on an eversion apparatus and everted into the collapsed liner. The gland is pressurized to isolate the eversion bladder. As the bladder reaches the distal manhole, it enters a receiving canister where it is punctured while maintaining air pressure within the bladder. Steam is then introduced into the bladder to cure the resin and is exhausted through the receiving canister. The bladder is then removed and lateral service reinstated.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: March 23, 2004
    Assignee: Insituform (Netherlands) B.V.
    Inventors: Franklin Thomas Driver, Weiping Wang
  • Patent number: 6691019
    Abstract: A method for controlling distortion of a turbine case (“case”) includes measuring a temperature distribution for the case that includes thermal gradients. The method further includes modeling thermal stresses on the case induced by the thermal gradients, calculating an out of roundness index (“index”) resulting from the thermal stresses, and comparing the index with at least one distortion limit to determine whether the case has a satisfactory or an unsatisfactory index. The temperature distribution is controlled for an unsatisfactory index to produce the satisfactory index. A system for controlling distortion of the turbine case includes a thermal measurement system, for measuring the temperature distribution, and a computer configured for modeling the thermal stresses, calculating and comparing the index with the distortion limit, and controlling the temperature distribution for an unsatisfactory index to produce the satisfactory index.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: February 10, 2004
    Assignee: General Electric Company
    Inventors: Charles Erklin Seeley, Ramanath Iyer Ramakrishnan, James Patrick Claeys, Martel Alexander McCallum, Anthony Constantine Thermos, Hsin-Pang Wang, Weiping Wang
  • Publication number: 20040012442
    Abstract: A power amplifier module for amplifying radio frequency signals includes a radio frequency power amplifier including one or more semiconductor transistors, adapted to receive an input radio frequency signal and power control signals, and to output an amplified radio frequency signal. The power amplifier module is integrated with input and output impedance matching networks and a power sensor that is adapted to receive the amplified radio frequency signal and to output a signal indicating the power output level of the power amplifier module. The power amplifier module also includes control logic in accordance to at least one of the qualities and the power level of the amplified radio frequency signal.
    Type: Application
    Filed: March 9, 2003
    Publication date: January 22, 2004
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang
  • Publication number: 20040012446
    Abstract: An amplifier circuit for amplifying radio frequency signals having temperature compensation and bias compensation includes a radio frequency power amplifier that receives an input radio frequency signal and outputs an amplified radio frequency signal, and a first transistor performing as a detector diode with its collector and base connected. The base of the first transistor receives the amplified radio frequency signal from the power amplifier, a second DC bias input signal from a regulated DC source, and a third power-sensing signal. The amplifier circuit further includes a second transistor to amplify the DC component of the RF signal from the base of the first transistor. The base of the second transistor is coupled to the base of the first transistor. The collector of the second transistor outputs the power-sensing signal, which is coupled to the regulated DC source through a resistor.
    Type: Application
    Filed: March 9, 2003
    Publication date: January 22, 2004
    Inventors: Ikuroh Ichitsubo, Weiping Wang
  • Publication number: 20030170515
    Abstract: A fuel cell system comprises a fuel processor, a fuel cell, a heat-generating electronic device and a thermally conductive component. The fuel processor receives fuel and outputs hydrogen. The fuel cell receives hydrogen from the fuel processor and outputs electric current. A heat-generating electronic device receives the electric current from the fuel cell. A thermally conductive component is in thermal connection with the heat-generating electronic device and the fuel processor.
    Type: Application
    Filed: November 22, 2002
    Publication date: September 11, 2003
    Inventors: Guan-Wu Wang, Weiping Wang
  • Publication number: 20030137588
    Abstract: A wireless camera including an enclosure having a lens opening; an imaging sensor positioned toward the lens opening; memory coupled to the camera to receive image data from the imaging sensor; and a wireless transmitter coupled to the camera.
    Type: Application
    Filed: November 22, 2002
    Publication date: July 24, 2003
    Inventors: Guan-Wu Wang, Weiping Wang
  • Patent number: D497350
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: October 19, 2004
    Assignee: Micro Mobio Corp.
    Inventors: Ikuroh Ichitsubo, Guan-Wu Wang, Weiping Wang