Patents by Inventor Vincent Liu

Vincent Liu 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: 10318866
    Abstract: In an approach for generating a selectivity estimation, one or more processors generate an artificial neural network and receive a DBMS query comprising one or more predicates. One or more processors replace one or more predicates in the one or more predicates that have strict operators with one or more predicates that have non-strict operators. One or more processors generate a selectivity function from the one or more predicates that has one or more arguments that are each comprised of an upper bound and a lower bound for a value in a predicate. One or more processors generate a training data set from a data distribution in the database and train the artificial neural network on the training data set to compute the selectivity function. One or more processors generate a selectivity estimation with the artificial neural network for one or more predicates in the DBMS query.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: June 11, 2019
    Assignee: International Business Machines Corporation
    Inventors: Vincent Corvinelli, Huaxin Liu, Mingbin Xu, Ziting Yu, Calisto P. Zuzarte
  • Patent number: 10278724
    Abstract: Methods and apparatus are provided for affecting an appearance of skin by harvesting small portions of tissue from a donor (first) site and applying them at a recipient (second) site. A plurality of micrografts can be formed from a piece of graft tissue and attached to a dressing material. The dressing material can then be expanded to increase a separation distance between the micrografts, and the dressing material having spaced-apart micrografts attached thereto can be applied to a prepared recipient site. An apparatus can be provided that expands the dressing material using a pressurized fluid. A further method can include providing a suspension of small portions of graft tissue in a solution. The solution can be injected into blisters formed at a recipient (second) site and the tissue portions allowed to attach and proliferate. A method and apparatus can also be provided for forming corresponding blisters at a donor site and at a recipient site.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: May 7, 2019
    Assignees: The General Hospital Corporation, Massachusetts Institute of Technology
    Inventors: Falguni Asrani, William Farinelli, Ajay Shah, Vincent Liu, Richard R. Anderson
  • Publication number: 20180358996
    Abstract: Apparatuses, systems, ambient backscatter transceivers, and methods for modulating a backscatter of an ambient RF signal are described. An example system may include an ambient backscatter transceiver comprising an antenna that is configured to receive a backscattered ambient radio frequency (RF) signal. The ambient backscatter transceiver is configured to demodulate the backscattered ambient RF signal to retrieve first data. The backscattered ambient RF signal is generated by backscattering an ambient RF signal at a first frequency. The ambient RF signal is encoded with modulated to provide second data at a second frequency.
    Type: Application
    Filed: July 24, 2018
    Publication date: December 13, 2018
    Applicant: University of Washington
    Inventors: Shyamnath Gollakota, Joshua R. Smith, Vincent Liu, Aaron N. Parks, Vamsi Talla
  • Patent number: 10033424
    Abstract: Apparatuses, systems, ambient backscatter transceivers, and methods for modulating a backscatter of an ambient RF signal are described. An example system may include an ambient backscatter transceiver comprising an antenna that is configured to receive a backscattered ambient radio frequency (RF) signal. The ambient backscatter transceiver is configured to demodulate the backscattered ambient RF signal to retrieve first data. The backscattered ambient RF signal is generated by backscattering an ambient RF signal at a first frequency. The ambient RF signal is encoded with modulated to provide second data at a second frequency.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: July 24, 2018
    Assignee: University of Washington
    Inventors: Shyamnath Gollakota, Joshua R. Smith, Vincent Liu, Aaron N. Parks, Vamsi Talla
  • Publication number: 20170331509
    Abstract: Apparatuses, systems, ambient backscatter transceivers, and methods for modulating a backscatter of an ambient RF signal are described. An example system may include an ambient backscatter transceiver comprising an antenna that is configured to receive a backscattered ambient radio frequency (RF) signal. The ambient backscatter transceiver is configured to demodulate the backscattered ambient RF signal to retrieve first data. The backscattered ambient RF signal is generated by backscattering an ambient RF signal at a first frequency. The ambient RF signal is encoded with modulated to provide second data at a second frequency.
    Type: Application
    Filed: May 22, 2017
    Publication date: November 16, 2017
    Applicant: University of Washington
    Inventors: Shyamnath Gollakota, Joshua R. Smith, Vincent Liu, Aaron N. Parks, Vamsi Talla
  • Patent number: 9680520
    Abstract: Apparatuses, systems, ambient backscatter transceivers, and methods for modulating a backscatter of an ambient RF signal are described. An example system may include an ambient backscatter transceiver comprising an antenna that is configured to receive a backscattered ambient radio frequency (RF) signal. The ambient backscatter transceiver is configured to demodulate the backscattered ambient RF signal to retrieve first data. The backscattered ambient RF signal is generated by backscattering an ambient RF signal at a first frequency. The ambient RF signal is encoded with modulated to provide second data at a second frequency.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: June 13, 2017
    Assignee: University of Washington Through Its Center For Commercialization
    Inventors: Shyamnath Gollakota, Joshua R. Smith, Vincent Liu, Aaron N. Parks, Vamsi Talla
  • Publication number: 20170134844
    Abstract: The present disclosure generally provides a method of manufacture of a custom fit in-ear module, including capturing an anatomical representation of a body part at a first location; transferring the stored data to a second electronic device positioned at a second location; forming a three-dimensional digital model from the stored data using the second electronic device; transforming the three-dimensional digital model, wherein the transforming comprises forming a cavity within the three-dimensional digital model, wherein the cavity is sized to receive an acoustic output member and one or more drivers; transferring the transformed three dimensional model to a third electronic device positioned at a third location; forming a body of an in-ear monitor using the transformed three dimensional model; and positioning the acoustic output member and one or more drivers within the formed body, wherein the acoustic output member and one or more drivers reside at least partially within the cavity.
    Type: Application
    Filed: January 13, 2017
    Publication date: May 11, 2017
    Inventors: Vincent LIU, Phillippe DEPALLENS, Todd William LANSINGER, Joseph A. SAGGIO, JR.
  • Publication number: 20170128096
    Abstract: Methods and apparatus are provided for affecting an appearance of skin by harvesting small portions of tissue from a donor (first) site and applying them at a recipient (second) site. A plurality of micrografts can be formed from a piece of graft tissue and attached to a dressing material. The dressing material can then be expanded to increase a separation distance between the micrografts, and the dressing material having spaced-apart micrografts attached thereto can be applied to a prepared recipient site. An apparatus can be provided that expands the dressing material using a pressurized fluid. A further method can include providing a suspension of small portions of graft tissue in a solution. The solution can be injected into blisters formed at a recipient (second) site and the tissue portions allowed to attach and proliferate. A method and apparatus can also be provided for forming corresponding blisters at a donor site and at a recipient site.
    Type: Application
    Filed: August 31, 2016
    Publication date: May 11, 2017
    Inventors: Falguni Asrani, William Farinelli, Ajay Shah, Vincent Liu, Richard R. Anderson
  • Patent number: 9451979
    Abstract: Methods and apparatus are provided for affecting an appearance of skin by harvesting small portions of tissue from a donor (first) site and applying them at a recipient (second) site. A plurality of micrografts can be formed from a piece of graft tissue and attached to a dressing material. The dressing material can then be expanded to increase a separation distance between the micrografts, and the dressing material having spaced-apart micrografts attached thereto can be applied to a prepared recipient site. An apparatus can be provided that expands the dressing material using a pressurized fluid. A further method can include providing a suspension of small portions of graft tissue in a solution. The solution can be injected into blisters formed at a recipient (second) site and the tissue portions allowed to attach and proliferate. A method and apparatus can also be provided for forming corresponding blisters at a donor site and at a recipient site.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: September 27, 2016
    Assignees: The General Hospital Corporation, Massachusetts Institute of Technology
    Inventors: Falguni Asrani, Ajay Shah, William Farinelli, Vincent Liu, Richard R. Anderson
  • Publication number: 20150311944
    Abstract: Apparatuses, systems, ambient backscatter transceivers, and methods for modulating a backscatter of an ambient RF signal are described. An example system may include an ambient backscatter transceiver comprising an antenna that is configured to receive a backscattered ambient radio frequency (RF) signal. The ambient backscatter transceiver is configured to demodulate the backscattered ambient RF signal to retrieve first data. The backscattered ambient RF signal is generated by backscattering an ambient RF signal at a first frequency. The ambient RF signal is encoded with modulated to provide second data at a second frequency.
    Type: Application
    Filed: July 9, 2015
    Publication date: October 29, 2015
    Inventors: Shyamnath Gollakota, Joshua R. Smith, Vincent Liu, Aaron N. Parks, Vamsi Talla
  • Patent number: 8361198
    Abstract: A process is described for purifying synthesis gas by means of a pressure swing adsorption unit which is desorbed by a vacuum produced by a so-called ejector, which is driven by steam generated by a heat exchanger which uses the heat in the flue gas duct or in the useful-gas duct for the generation of steam. The pressure swing adsorption unit is operated advantageously in cyclic turns of adsorption under excess pressure, depressurization desorption and vacuum desorption and the gas desorbed by the ejector being cooled in a cooler so that the contained steam can be condensed and discharged or is advantageously returned to the feed gas for the synthesis gas production. The foreign gas desorbed by the pressure swing adsorption unit, which contains at least partly not yet consumed fuel gas, is recycled to the fuel gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate tank and applied to the pressure swing adsorption unit according to the vacuum desorption cycle.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: January 29, 2013
    Assignee: UHDE GmbH
    Inventors: Thilo Von Trotha, Vincent Liu, Michael Wyschofsky
  • Patent number: 8106606
    Abstract: The present invention discloses a control apparatus, which not only accepts multiple dimming control signals, but also combines the signals in analog manner. By means of this, an inevitable analog to digital converter in a conventional voltage multiple dimming control apparatus can be saved without hurting the performance of generation of pulse width modulation signals. Compared with the conventional arts, the present invention further exhibits reduction in view of chip size and power consumption.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: January 31, 2012
    Assignee: Holtek Semiconductor Inc.
    Inventors: Wen-Kuen Vincent Liu, Yi-Tai Chang
  • Patent number: 8076919
    Abstract: Disclosed is a Power Factor Correction Controller, which comprises a boost converter, a current sensing unit, an arithmetic unit, and a switch driving unit. The current sensing unit can sense or derive the current that pass through the energy delivery device, which is normally implemented by a diode or a switch. The current sensing unit can also sense the inductor current, or the switch current. With the current sensing unit, the arithmetic unit can calculate the optimum switch on-time or when to turn off the switch, without direct-sensing of the load. The disclosed method reduces the system cost by removing the needs to sense the load condition as in the prior arts. The disclosed method also improves the system response by sensing the delivered current at energy delivery side, rather than the receiver side as in the prior arts.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: December 13, 2011
    Assignee: Holtek Semiconductor Inc.
    Inventors: Vincent Liu, Yi-Meng Lan, Ming-Hung Chien
  • Publication number: 20110264115
    Abstract: Methods and apparatus are provided for affecting an appearance of skin by harvesting small portions of tissue from a donor (first) site and applying them at a recipient (second) site. A plurality of micrografts can be formed from a piece of graft tissue and attached to a dressing material. The dressing material can then be expanded to increase a separation distance between the micrografts, and the dressing material having spaced-apart micrografts attached thereto can be applied to a prepared recipient site. An apparatus can be provided that expands the dressing material using a pressurized fluid. A further method can include providing a suspension of small portions of graft tissue in a solution. The solution can be injected into blisters formed at a recipient (second) site and the tissue portions allowed to attach and proliferate. A method and apparatus can also be provided for forming corresponding blisters at a donor site and at a recipient site.
    Type: Application
    Filed: September 24, 2009
    Publication date: October 27, 2011
    Applicant: The General Hospital Corporation
    Inventors: Falguni Asrani, William Farinelli, Ajay Shah, Vincent Liu, Richard R. Anderson
  • Publication number: 20110061529
    Abstract: A process is described for purifying synthesis gas by means of a pressure swing adsorption unit which is desorbed by a vacuum produced by a so-called ejector, which is driven by steam generated by a heat exchanger which uses the heat in the flue gas duct or in the useful-gas duct for the generation of steam. The pressure swing adsorption unit is operated advantageously in cyclic turns of adsorption under excess pressure, depressurization desorption and vacuum desorption and the gas desorbed by the ejector being cooled in a cooler so that the contained steam can be condensed and discharged or is advantageously returned to the feed gas for the synthesis gas production. The foreign gas desorbed by the pressure swing adsorption unit, which contains at least partly not yet consumed fuel gas, is recycled to the fuel gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate tank and applied to the pressure swing adsorption unit according to the vacuum desorption cycle.
    Type: Application
    Filed: February 17, 2009
    Publication date: March 17, 2011
    Applicant: UHDE GMBH
    Inventors: Thilo Von Trotha, Vincent Liu, Michael Wyschofsky
  • Publication number: 20110006705
    Abstract: The present invention discloses a control apparatus, which not only accepts multiple dimming control signals, but also combines the signals in analog manner. By means of this, an inevitable analog to digital converter in a conventional voltage multiple dimming control apparatus can be saved without hurting the performance of generation of pulse width modulation signals. Compared with the conventional arts, the present invention further exhibits reduction in view of chip size and power consumption.
    Type: Application
    Filed: August 13, 2009
    Publication date: January 13, 2011
    Applicant: HOLTEK SEMICONDUCTOR INC.
    Inventors: Wen-kuen Vincent Liu, Yi-Tai Chang
  • Publication number: 20100128503
    Abstract: Disclosed is a Power Factor Correction Controller, which comprises a boost converter, a current sensing unit, an arithmetic unit, and a switch driving unit. The current sensing unit can sense or derive the current that pass through the energy delivery device, which is normally implemented by a diode or a switch. The current sensing unit can also sense the inductor current, or the switch current. With the current sensing unit, the arithmetic unit can calculate the optimum switch on-time or when to turn off the switch, without direct-sensing of the load. The disclosed method reduces the system cost by removing the needs to sense the load condition as in the prior arts. The disclosed method also improves the system response by sensing the delivered current at energy delivery side, rather than the receiver side as in the prior arts.
    Type: Application
    Filed: March 20, 2009
    Publication date: May 27, 2010
    Applicant: HOLTEK SEMICONDUCTOR INC.
    Inventors: Vincent Liu, Yi-Meng Lan, Ming-Hung Chien
  • Publication number: 20100098601
    Abstract: A system for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtained carbon monoxide with steam occurs in a downstream conversion step in order to form carbon monoxide and water. Carbon dioxide is removed from the converted gas flow by gas washing, and the washed hydrogen-rich gas flow is subsequently divided in a pressure-swing adsorption system into a product gas flow made of hydrogen and a waste gas flow. The waste gas flow is introduced with hydrogen, which is separated from the gas flow after gas washing, into a reformer which is essentially a carbon-free combustible gas, and is combusted there.
    Type: Application
    Filed: December 17, 2009
    Publication date: April 22, 2010
    Inventors: Michael Blumenfeld, Vincent Liu, Bernd Mielke, Marcus Michel
  • Patent number: 7682597
    Abstract: The invention relates to a method for extracting hydrogen from a gas containing methane, especially natural gas. Hydrocarbons contained in the gas are catalytically broken down in a reformer (4) by steam in order to form hydrogen, carbon monoxide and carbon dioxide. Catalytic conversion of the obtained carbon monoxide with steam occurs in a downstream conversion step in order to form carbon monoxide and water. Carbon dioxide is removed from the converted gas flow (8) by gas washing (7), and the washed hydrogen-rich gas flow (10) is subsequently divided in a pressure-swing adsorption system (11) into a product gas flow (12) made of hydrogen and a waste gas flow (13). The waste gas flow (13) is introduced with hydrogen (14), which is separated from the gas flow (10) after gas washing, into a reformer (4) which is essentially a carbon-free combustible gas, and is combusted there. The invention also relates to a system for carrying out the method.
    Type: Grant
    Filed: July 24, 2004
    Date of Patent: March 23, 2010
    Assignee: Uhde GmbH
    Inventors: Michael Blumenfeld, Vincent Liu, Bernd Mielke, Marcus Michel
  • Patent number: 7450609
    Abstract: Methods and apparatus are provided for allocating bandwidth among members of two statistical multiplexing groups having overlapping members. At least two groups of such services having overlapping members are defined. The members of a first one of the groups consume a first bandwidth and the members of a second one of the groups consume a second bandwidth. A total bandwidth of all the members of the groups together is restricted to be no more than a total available bandwidth. In order to accomplish this, the members of the first and second groups are statistically multiplexed based on bandwidth requirements of members common to both said first and second groups.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: November 11, 2008
    Assignee: General Instruments Corporation
    Inventors: Vincent Liu, Siu-Wai Wu, Ly Tran, Craig Cuttner