Patents by Inventor Yang Qiu

Yang Qiu 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: 20170194723
    Abstract: A circuit board assembly includes a circuit board, at least one metal sheet, at least one bus and at least one fixed member. The circuit board has at least one electrical connecting area. The metal sheet is adapted to solder to the electrical connecting area and has at least one metal sheet hole. The bus has a connecting portion. The connecting portion is corresponding to the metal sheet. The bus has at least one fixed screwing hole. The fixed screwing hole is corresponding to the metal sheet hole. The circuit board and the bus is locked by the fixed member.
    Type: Application
    Filed: January 15, 2016
    Publication date: July 6, 2017
    Inventors: Ji-Peng Xu, Guang-Zhao Tian, Yang-Qiu Lai, Xiang-Biao Sha
  • Publication number: 20170184689
    Abstract: A magnetic sensor for superconducting quantum interference device using single operational amplifier comprising SQUID, a feedback coil, feedback resistor and an operational amplifier. The voltage signal of SQUID is delivered to one input of the operational amplifier, a bias voltage is delivered to other input of the operational amplifier, and the output of the operational amplifier connects to one end of a feedback resistor, the other end of the feedback resistor connects to a feedback, coil that is coupled through mutual inductance with the SQUID so as to generate feedback magnetic flux, the output voltage of the operational amplifier drives the feedback resistance to generate current, thereby forming a flux locking loop. The present Invention uses an open loop operational amplifier to implement SQUID magnetic flux locking feedback circuit which simplifies the circuit configuration, decrease the loop delay and thereby achieving higher bandwidth of the flux locking loop.
    Type: Application
    Filed: June 25, 2015
    Publication date: June 29, 2017
    Applicant: Shanghai Institute of Microsystem and Information Technology, Chinese Academy Of Science
    Inventors: Yongliang Wang, Yi Zhang, Kai Chang, Hans-Joachim Krause, Xiaofeng Xu, Yang Qiu
  • Publication number: 20170179337
    Abstract: An optical semiconductor device comprises, on a substrate, a fin of diamond-cubic semiconductor material and, at the base of the fin, a slab of that semiconductor material, in a diamond-hexagonal structure, that extends over the full width of the fin, the slab being configured as an optically active material. This semiconductor material can contain silicon. A method for manufacturing the optical semiconductor device comprises annealing the sidewalls of the fin, thereby inducing a stress gradient along the width of the fin.
    Type: Application
    Filed: March 7, 2017
    Publication date: June 22, 2017
    Inventors: Hugo Bender, Yang Qiu
  • Patent number: 9634185
    Abstract: An optical semiconductor device comprises, on a substrate, a fin of diamond-cubic semiconductor material and, at the base of the fin, a slab of that semiconductor material, in a diamond-hexagonal structure, that extends over the full width of the fin, the slab being configured as an optically active material. This semiconductor material can contain silicon. A method for manufacturing the optical semiconductor device comprises annealing the sidewalls of the fin, thereby inducing a stress gradient along the width of the fin.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: April 25, 2017
    Assignees: IMEC VZW, Katholieke Universiteit Leuven, KU Leuven R&D
    Inventors: Hugo Bender, Yang Qiu
  • Publication number: 20160284929
    Abstract: An optical semiconductor device comprises, on a substrate, a fin of diamond-cubic semiconductor material and, at the base of the fin, a slab of that semiconductor material, in a diamond-hexagonal structure, that extends over the full width of the fin, the slab being configured as an optically active material. This semiconductor material can contain silicon. A method for manufacturing the optical semiconductor device comprises annealing the sidewalls of the fin, thereby inducing a stress gradient along the width of the fin.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Inventors: Hugo Bender, Yang Qiu
  • Patent number: 8245135
    Abstract: A method and system of producing a visual text summarization. According to the method, a plurality of topics may be extracted from a collection of text documents, where each of the topics comprises a distribution of topic keywords. An importance ranking for each of the topics may be determined, and an importance ranking for each of the topic keywords of a topic may also be determined. A graph may be displayed having a plurality of stacked layers representing a group of topics selected from the plurality of topics based on the importance ranking of the topics. A keyword cloud within each layer of the graph may also be displayed, where the one keyword cloud is a group of topic keywords selected from the extracted topic keywords based on the importance ranking of the extracted topic keywords.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: August 14, 2012
    Assignee: International Business Machines Corporation
    Inventors: Wei Jia Cai, Xiao Xiao Lian, Shixia Liu, Shimei Pan, Wei Hong Qian, Yang Qiu Song, Qiang Zhang, Michelle Xue Zhou
  • Publication number: 20110060983
    Abstract: A method and system of producing a visual text summarization. According to the method, a plurality of topics may be extracted from a collection of text documents, where each of the topics comprises a distribution of topic keywords. An importance ranking for each of the topics may be determined, and an importance ranking for each of the topic keywords of a topic may also be determined. A graph may be displayed having a plurality of stacked layers representing a group of topics selected from the plurality of topics based on the importance ranking of the topics. A keyword cloud within each layer of the graph may also be displayed, where the one keyword cloud is a group of topic keywords selected from the extracted topic keywords based on the importance ranking of the extracted topic keywords.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 10, 2011
    Inventors: Wei Jia Cai, Xiao Xiao Lian, Shi Xia Liu, Shimei Pan, Wei Hong Qian, Yang Qiu Song, Qiang Q. Zhang, Michelle X. Zhou
  • Publication number: 20100273661
    Abstract: A method for predicting treatment response of a type II diabetes patient to rosiglitazone is provided. The method involves at least one sample from a patient having type II diabetes and analyzing biomarkers predictive of a patient who will respond to treatment with rosiglitazone. The biomarkers include, at least, interleukin-8, histidine, citrate. These biomarkers are identified in at least one classification analyses selected from the group consisting of a majority-vote based classifier and support-vector machine (SVM) classifier. Also provided is a method for predicting treatment response of a type II diabetes patient to glyburide at 8 weeks post-initiation of therapy. The method involves obtaining a sample from a type II diabetes patient who has been treated with glyburide for about 4 weeks and analyzing biomarkers predictive of a patient who will respond to treatment with glyburide at 8 weeks. The biomarkers useful in this method include, at least, sphingomyelin 23:1 and L-phenylalanine.
    Type: Application
    Filed: June 11, 2008
    Publication date: October 28, 2010
    Applicants: SmithKline Beecham Corporation, BG Medicine Inc
    Inventors: Yang Qiu, Dilip Rajagopalan, Lei Zhu, Susan C Connor, Guanghui Hu, David Maclean, Doris Damian, Amir Handzel, Rajalakshmi Balasubramanian
  • Patent number: 7705577
    Abstract: A switched voltage regulator provides improved regulation at a lower clock rate/sampling frequency (e.g. several orders of magnitude lower than would be required for comparable regulation) while using a low resolution digital pulse width modulator such that limit cycle oscillations occur (and thus of low cost and complexity and small size) by limiting the amplitude of limit cycle oscillations which therefore need not be avoided by more complex arrangements which are not commercially feasible. Limiting of amplitude of limit cycle oscillations is achieved by adding essentially a digitized ripple voltage signal corresponding to the difference between the output of the voltage regulator and an average output of the voltage regulator as an input to the digital pulse width modulator.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: April 27, 2010
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Jian Li, Yang Qiu, Ming Xu, Fred C. Lee
  • Patent number: 7570037
    Abstract: A digital pulse width modulator leverages clock frequency to achieve very fine duty cycle resolution by using a constant number of time slots for each state of a pulse signal and varying the number of time slots in a switching cycle within acceptable limits for variation of the switching cycle frequency or by using two relatively low frequency clocks of slightly differing frequency and selecting pulse leading and trailing edges in accordance with pulses output therefrom. A fine resolution of duty cycle adjustment can thus be provided corresponding to a much higher effective clock frequency than is actually used; allowing improvement of efficiency of clock and switching circuits, particularly in switching voltage regulator applications.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: August 4, 2009
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Jian Li, Dong S. Ha, Yang Qiu, Ming Xu, Fred C. Lee
  • Publication number: 20080298090
    Abstract: A switched voltage regulator provides improved regulation at a lower clock rate/sampling frequency (e.g. several orders of magnitude lower than would be required for comparable regulation) while using a low resolution digital pulse width modulator such that limit cycle oscillations occur (and thus of low cost and complexity and small size) by limiting the amplitude of limit cycle oscillations which therefore need not be avoided by more complex arrangements which are not commercially feasible. Limiting of amplitude of limit cycle oscillations is achieved by adding essentially a digitized ripple voltage signal corresponding to the difference between the output of the voltage regulator and an average output of the voltage regulator as an input to the digital pulse width modulator.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Jian Li, Yang Qiu, Ming Xu, Fred C. Lee
  • Publication number: 20080116871
    Abstract: A digital pulse width modulator leverages clock frequency to achieve very fine duty cycle resolution by using a constant number of time slots for each state of a pulse signal and varying the number of time slots in a switching cycle within acceptable limits for variation of the switching cycle frequency or by using two relatively low frequency clocks of slightly differing frequency and selecting pulse leading and trailing edges in accordance with pulses output therefrom. A fine resolution of duty cycle adjustment can thus be provided corresponding to a much higher effective clock frequency than is actually used; allowing improvement of efficiency of clock and switching circuits, particularly in switching voltage regulator applications.
    Type: Application
    Filed: November 17, 2006
    Publication date: May 22, 2008
    Inventors: Jian Li, Dong S. Ha, Yang Qiu, Ming Xu, Fred C. Lee