Patents by Inventor Nanci Yuan

Nanci Yuan 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: 9549682
    Abstract: Methods and systems for monitoring the well-being of a target are disclosed. In a method embodiment, data representing a signal is received by a computer system. The signal may be generated at least in part by one or more sensors in response to the detection of a change in an electrical field, electric potential, capacitance, and/or dielectric constant of a target spaced apart from the one or more sensors. The method may further include identifying, using the computer system and based at least in part on the data electronically received by the computer system, a recurring pattern in the received data. The method may also include determining, using the computer system and based at least in part on the received data, whether a deviation from the recurring pattern transgresses a threshold. The deviation may comprise a subset of the data electronically received by the computer system.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: January 24, 2017
    Assignee: Life Detection Technologies, Inc.
    Inventors: Eric Howie, Guy McIlroy, John Haggis, Nanci Yuan
  • Patent number: 9148351
    Abstract: The embodiments described herein relate to obtaining one or more measurements from a VOIP communication that is indicative of call quality, changing one or more settings of the VOIP communication, such as the type of codec or the ascribed bit rate of a VBR codec, and determining call quality of the VOIP communication after setting changes by utilizing at least one of the one or more call quality measurements.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: September 29, 2015
    Assignee: Tektronix, Inc.
    Inventors: Nancy Yuan, Quenie Q. Sun, Alison Cohen, Michael Campbell
  • Patent number: 9035778
    Abstract: Methods and systems for monitoring a well-being of a target are disclosed. In a method embodiment, data representing a process electric potential signal is received by a computer system. The process electric potential signal may be generated at least in part by one or more electric potential sensors in response to the detection of a change in an electric field of a target spaced apart from the one or more electric potential sensors. The method may further include identifying, using the computer system and based at least in part on the data electronically received by the computer system, a recurring pattern in the received data. The method may also include determining, using the computer system and based at least in part on the received data, whether a deviation from the recurring pattern transgresses a threshold. The deviation may comprise a subset of the data electronically received by the computer system.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 19, 2015
    Assignee: LIFE DETECTION SYSTEMS, INC.
    Inventors: Eric Howie, Guy McIlroy, John Haggis, Nanci Yuan
  • Publication number: 20150057557
    Abstract: Methods and systems for monitoring the well-being of a target are disclosed. In a method embodiment, data representing a signal is received by a computer system. The signal may be generated at least in part by one or more sensors in response to the detection of a change in an electrical field, electric potential, capacitance, and/or dielectric constant of a target spaced apart from the one or more sensors. The method may further include identifying, using the computer system and based at least in part on the data electronically received by the computer system, a recurring pattern in the received data. The method may also include determining, using the computer system and based at least in part on the received data, whether a deviation from the recurring pattern transgresses a threshold. The deviation may comprise a subset of the data electronically received by the computer system.
    Type: Application
    Filed: October 30, 2014
    Publication date: February 26, 2015
    Applicant: LIFE DETECTION SYSTEMS, LLC
    Inventors: Eric HOWIE, Guy MCLLROY, John HAGGIS, Nanci YUAN
  • Publication number: 20150016285
    Abstract: The embodiments described herein relate to obtaining one or more measurements from a VOIP communication that is indicative of call quality, changing one or more settings of the VOIP communication, such as the type of codec or the ascribed bit rate of a VBR codec, and determining call quality of the VOIP communication after setting changes by utilizing at least one of the one or more call quality measurements.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 15, 2015
    Applicant: Tektronix, Inc.
    Inventors: Nancy Yuan, Quenie Q. Sun, Alison Cohen, Michael Campbell
  • Publication number: 20140055269
    Abstract: Methods and systems for monitoring a well-being of a target are disclosed. In a method embodiment, data representing a process electric potential signal is received by a computer system. The process electric potential signal may be generated at least in part by one or more electric potential sensors in response to the detection of a change in an electric field of a target spaced apart from the one or more electric potential sensors. The method may further include identifying, using the computer system and based at least in part on the data electronically received by the computer system, a recurring pattern in the received data. The method may also include determining, using the computer system and based at least in part on the received data, whether a deviation from the recurring pattern transgresses a threshold. The deviation may comprise a subset of the data electronically received by the computer system.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 27, 2014
    Inventors: Eric Howie, Guy Mcllroy, John Haggis, Nanci Yuan
  • Patent number: 6902827
    Abstract: A process for electrodepositing a low stress nickel-manganese multilayer alloy on an electrically conductive substrate is provided. The process includes the steps of immersing the substrate in an electrodeposition solution containing a nickel salt and a manganese salt and repeatedly passing an electric current through an immersed surface of the substrate. The electric current is alternately pulsed for predetermined durations between a first electrical current that is effective to electrodeposit nickel and a second electrical current that is effective to electrodeposit nickel and manganese. A multilayered alloy having adjacent layers of nickel and a nickel-manganese alloy on the immersed surface of the substrate is thereby produced. The resulting multilayered alloy exhibits low internal stress, high strength and ductility, and high strength retention upon exposure to heat.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: June 7, 2005
    Assignee: Sandia National Laboratories
    Inventors: James John Kelly, Steven Howard Goods, Nancy Yuan-Chi Yang, Charles Henry Cadden
  • Publication number: 20040031691
    Abstract: A process for electrodepositing a low stress nickel-manganese multilayer alloy on an electrically conductive substrate is provided. The process includes the steps of immersing the substrate in an electrodeposition solution containing a nickel salt and a manganese salt and repeatedly passing an electric current through an immersed surface of the substrate. The electric current is alternately pulsed for predetermined durations between a first electrical current that is effective to electrodeposit nickel and a second electrical current that is effective to electrodeposit nickel and manganese. A multilayered alloy having adjacent layers of nickel and a nickel-manganese alloy on the immersed surface of the substrate is thereby produced. The resulting multilayered alloy exhibits low internal stress, high strength and ductility, and high strength retention upon exposure to heat.
    Type: Application
    Filed: August 15, 2002
    Publication date: February 19, 2004
    Inventors: James John Kelly, Steven Howard Goods, Nancy Yuan-Chi Yang, Charles Henry Cadden
  • Patent number: 6315188
    Abstract: The present invention relates to a method for preparing the surface of a high purity alumina ceramic or sapphire specimen that enables direct brazing in a hydrogen atmosphere using an active braze alloy. The present invention also relates to a method for directly brazing a high purity alumina ceramic or sapphire specimen to a ceramic or metal member using this method of surface preparation, and to articles produced by this brazing method. The presence of silicon, in the form of a SiO2-containing surface layer, can more than double the tensile bond strength in alumina ceramic joints brazed in a hydrogen atmosphere using an active Au-16Ni-0.75 Mo-1.75V filler metal. A thin silicon coating applied by PVD processing can, after air firing, produce a semi-continuous coverage of the alumina surface with a SiO2 film. Room temperature tensile strength was found to be proportional to the fraction of air fired surface covered by silicon-containing films.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: November 13, 2001
    Assignee: Sandia Corporation
    Inventors: Charles H. Cadden, Nancy Yuan Chi Yang, Floyd M. Hosking
  • Patent number: 5895518
    Abstract: A method for preparing controlled phase alloys useful for engineering and hydrogen storage applications. This novel method avoids melting the constituents by employing vapor transport, in a hydrogen atmosphere, of an active metal constituent, having a high vapor pressure at temperatures .apprxeq.300 C. and its subsequent condensation on and reaction with the other constituent (substrate) of an alloy thereby forming a controlled phase alloy and preferably a single phase alloy. It is preferred that the substrate material be a metal powder such that diffusion of the active metal constituent, preferably magnesium, and reaction therewith can be completed within a reasonable time and at temperatures .apprxeq.300 C. thereby avoiding undesirable effects such as sintering, local compositional inhomogeneities, segregation, and formation of unwanted second phases such as intermetallic compounds.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: April 20, 1999
    Assignee: Sandia Corporation
    Inventors: Stephen Everett Guthrie, George John Thomas, Walter Bauer, Nancy Yuan Chi Yang