Patents by Inventor Yi Qian
Yi Qian 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).
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Patent number: 10236685Abstract: A power electronic voltage transforming apparatus is used in a two-phase to single-phase conversion. The power electronic voltage transforming apparatus is cooperatively used with a three-phase to two-phase transformer to convert the two-phase power output from the three-phase to two-phase transformer into single-phase power. The two-phase to single-phase power electronic voltage transforming apparatus or three-phase to single-phase power electronic voltage transforming apparatus has an input cascade connection structure formed by cascading n converter modules.Type: GrantFiled: November 2, 2017Date of Patent: March 19, 2019Assignee: SOUTHWEST JIAOTONG UNIVERSITYInventors: Zeliang Shu, Linghui Meng, Wenjun Mao, Yuan Lei, Yi Qian, Xiaoqiong He
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Publication number: 20180375326Abstract: The present invention provides a power electronic voltage transforming apparatus, which relates to the fields of electrified railway traction power supply technology, the industrial electricity etc. The power electronic voltage transforming apparatus can solve the problems of dynamic control of negative-sequence current, compensation of reactive power and phase separation of traction network, and can also solve the imbalance of voltage and current caused by adding single-phase load in other industrial power applications. The two-phase to single-phase power electronic voltage transforming apparatus or three-phase to single-phase power electronic voltage transforming apparatus has an input cascade connection structure formed by cascading n converter modules.Type: ApplicationFiled: November 2, 2017Publication date: December 27, 2018Applicant: Southwest Jiaotong UniversityInventors: Zeliang SHU, Linghui MENG, Wenjun MAO, Yuan LEI, Yi QIAN, Xiaoqiong HE
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Patent number: 10143377Abstract: Methods for remotely measuring or monitoring one or more physiological parameters in a subject, such as blood volume pulse, heart rate, respiratory wave, or respiration rate, are provided. The methods include capturing a series of images of the subject, and processing the images to obtain physiological parameters of interest. These methods can be used to analyze single channel signals, including signals obtained from active night vision cameras. As a result, these methods can be used to measure or monitor one or more physiological parameters in both daylight and low-light conditions. Also provided are methods of removing false positives. Systems for remotely measuring or monitoring one or more physiological parameters in a subject, as well as methods of using thereof, are also provided.Type: GrantFiled: May 2, 2012Date of Patent: December 4, 2018Assignees: Augusta University Research Institute, Inc., Banna Biomedical Reseach InstituteInventors: Joseph Z. Tsien, Meng Li, Fang Zhao, Yi Qian
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Patent number: 9928067Abstract: Systems and methods are provided in example embodiments for performing binary translation. A binary translation system converts, by a translator module, source instructions to target instructions. The binary translation system identifies a condition code block in the source instructions, where the condition code block includes a plurality of condition bits. In response to identifying the condition code block, the binary translation system provides an optimizer module to convert the condition code block. Then, the binary translation system performs a pre-execution on the condition code block to resolve the plurality of condition bits in the condition code block.Type: GrantFiled: September 21, 2012Date of Patent: March 27, 2018Assignee: Intel CorporationInventors: Xueliang Zhong, Jianhui Li, Jian Ping Jane Chen, Gang Wang, Yi Qian, Huifeng Gu
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Publication number: 20180035182Abstract: An optical cross-connect node includes a first optical switching switch, a second optical switching switch, a wave-dropping wavelength switching switch, a wave-adding wavelength switching switch, and a pass-through dimension switching switch. The first optical switching switch receives an optical signal, where the optical signal includes a first optical signal and/or a second optical signal. The first optical switching switch sends the first optical signal to the wave-dropping wavelength switching switch. The first optical switching switch sends the second optical signal to the pass-through dimension switching switch. The wave-dropping wavelength switching switch performs wavelength switching on the first optical signal. The wave-adding wavelength switching switch performs wavelength switching on a third optical signal generated locally and sends it to the second optical switching switch.Type: ApplicationFiled: October 10, 2017Publication date: February 1, 2018Inventors: Dawei Wang, Yi Qian
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Patent number: 9693071Abstract: A system for video decoding includes an interface, a set of cores, an allocator, and a load metric measurer. The interface is to receive a set of encoded video frames. The set of cores is to process data. The allocator is to determine an assignment of the set of video decoding modules to the set of cores. The load metric measurer to measure load metrics for each module of the set of modules during decoding of the set of encoded video frames. The allocator is to determine a reassignment of the set of modules to the set of cores based at least in part on the load metrics.Type: GrantFiled: September 23, 2014Date of Patent: June 27, 2017Assignee: VisualOn, Inc.Inventors: Chin-Yee Lin, Yi Qian, Hanyue Yang, Hui Yang
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Publication number: 20160381443Abstract: A method and apparatus for routing signals through a photonic switch are provided. Optical Signal-to-Noise Ratio (OSNR) requirements for signals to be concurrently routed through the switch are determined, and incoming signal routing requests are blocked when routing same would violate OSNR requirements. Blocking may occur when a maximum allowed number M of lightpaths of same wavelength would be exceeded by admitting the request. Otherwise, signals are routed along a lightpath which satisfies the OSNR requirements. Cell Extinction Ratio in conjunction with OSNR requirements can be used to determine M. Switching cells can potentially accommodate multiple lightpaths of different wavelengths, but regular switching cells may be inhibited from accommodating multiple lightpaths of same wavelength. Routing solutions which maximize both cell sharing and cell packing may be sought. Routes that violate crosstalk limitation conditions are inhibited.Type: ApplicationFiled: September 3, 2015Publication date: December 29, 2016Inventors: Hamid Mehrvar, Yi Qian
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Patent number: 9491120Abstract: Crosstalk can be suppressed in photonic switching fabrics by activating unused photonic elements in a manner that manipulates the inactive connections and inhibits the propagation of cross-talk over the switching fabric. For example, unused photonic elements can be set to a cross or bar configuration to block first and second order crosstalk from propagating to the output ports, thereby reducing noise in the output signals. All of the unused elements can be activated in order to maximize crosstalk suppression. Alternatively, fewer than all of the unused elements may be activated to achieve a balance between crosstalk suppression and power conservation. Photonic switch architectures can be configured to use pre-determined cross-talk suppression maps (e.g., patterns of activated unused cells) for the various switching configurations, which may be computed using a recursive algorithm.Type: GrantFiled: September 4, 2013Date of Patent: November 8, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Hamid Mehrvar, Yi Qian, Patrick Dumais, Dominic John Goodwill, Eric Bernier
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Publication number: 20160310025Abstract: The present application relates to a system and method for measuring a pulse wave of a subject. The system comprises: a first sensor array and a second sensor array for respectively sensing a corresponding pulse wave of a first and a second artery of the subject, each of the first sensor array and the second sensor array comprising a plurality of sensors for respectively acquiring a plurality of first signals indicating a vibration of the skin; a deriving unit configured to derive, for each of the first sensor array and the second sensor array, a second signal representing the corresponding pulse wave from the plurality of first signals; and a first calculating unit configured to calculate a pulse transit time between the first artery and the second artery from the second signal derived for the first sensor array and the second signal derived for the second sensor array. An embodiment of this invention can improve accuracy of pulse wave measurement.Type: ApplicationFiled: December 11, 2014Publication date: October 27, 2016Inventors: Clementine Marie Francoise VIELLARD-BOUTRY, Georgio MOSIS, Deep BERA, Weirong MO, Yi QIAN
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Patent number: 9456260Abstract: Recursive optimization algorithms can be used to determine which idle photonic switching elements to configure in N×N switching fabrics to achieve crosstalk suppression. Different algorithms are used to achieve different levels of optimization. Embodiment full optimization techniques may configure all inactive cells to reduce crosstalk, and consequently may provide the best noise performance and highest power usage. Partial optimizations may configure fewer than all inactive cells to reduce crosstalk, and may provide sub-optimal noise performance at lower power usages. Differential partial optimization algorithms configure inactive cells in different stages of a photonic switching fabric. Fewer than all cells in a given stage may be configured by some algorithms.Type: GrantFiled: October 31, 2014Date of Patent: September 27, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Hamid Mehrvar, Yi Qian, Patrick Dumais, Dominic John Goodwill, Eric Bernier
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Publication number: 20160196649Abstract: A method for determining an intracortical working state of a functional network of the brain includes acquiring a number of first blood oxygen saturation level time point vectors of a number of gray matter voxels of a cortex of a brain functional network template, each of the blood oxygen saturation level time point vectors respectively having blood oxygen saturation level signals of each of the gray matter voxels at a number of continuous time points in a particular time period. The method further includes clustering the blood oxygen saturation level time point vectors as a number of gray matter voxel cooperative time point categories by taking the blood oxygen saturation level signals as objects, the gray matter voxel cooperative time point categories being sets of a number of discrete time points of the gray matter voxels respectively in the particular time period.Type: ApplicationFiled: January 6, 2016Publication date: July 7, 2016Applicant: Siemens Healthcare GmbHInventor: Tian Yi Qian
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Patent number: 9026978Abstract: A system, method, and computer program product for automatically optimizing circuit designs. A graphical user interface based environment allows arbitrary selection of a circuit design region to be optimized based on physical layout, without regard for logical hierarchy. Embodiments analyze circuit paths crossing optimization region boundaries and replace externally connected circuitry with an interface logic model describing such circuitry from the optimization region boundary to a first register occurrence. A reduced netlist spans the regional circuitry and the modeled external circuitry. Embodiments optimize the reduced netlist under design constraints applicable to the full circuit design. Changes to the original circuit design made by the optimization are tangibly saved as engineering change orders. The optimization process may be applied to other regions, including via parallel execution by multiple processors.Type: GrantFiled: October 24, 2013Date of Patent: May 5, 2015Assignee: Cadence Design Systems, Inc.Inventors: Dongzi Liu, Yi Qian, Wanshuan Liu, Pinhong Chen, WenHsing Tsai, Yanhui Wang
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Publication number: 20150055951Abstract: Recursive optimization algorithms can be used to determine which idle photonic switching elements to configure in N×N switching fabrics to achieve crosstalk suppression. Different algorithms are used to achieve different levels of optimization. Embodiment full optimization techniques may configure all inactive cells to reduce crosstalk, and consequently may provide the best noise performance and highest power usage. Partial optimizations may configure fewer than all inactive cells to reduce crosstalk, and may provide sub-optimal noise performance at lower power usages. Differential partial optimization algorithms configure inactive cells in different stages of a photonic switching fabric. Fewer than all cells in a given stage may be configured by some algorithms.Type: ApplicationFiled: October 31, 2014Publication date: February 26, 2015Inventors: Hamid Mehrvar, Yi Qian, Patrick Dumais, Dominic John Goodwill, Eric Bernier
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Publication number: 20140328154Abstract: Crosstalk can be suppressed in photonic switching fabrics by activating unused photonic elements in a manner that manipulates the inactive connections and inhibits the propagation of cross-talk over the switching fabric. For example, unused photonic elements can be set to a cross or bar configuration to block first and second order crosstalk from propagating to the output ports, thereby reducing noise in the output signals. All of the unused elements can be activated in order to maximize crosstalk suppression. Alternatively, fewer than all of the unused elements may be activated to achieve a balance between crosstalk suppression and power conservation. Photonic switch architectures can be configured to use pre-determined cross-talk suppression maps (e.g., patterns of activated unused cells) for the various switching configurations, which may be computed using a recursive algorithm.Type: ApplicationFiled: September 4, 2013Publication date: November 6, 2014Inventors: Hamid Mehrvar, Yi Qian, Patrick Dumais, Dominic Goodwill, Eric Bernier
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Publication number: 20140304493Abstract: Systems and methods are provided in example embodiments for performing binary translation. A binary translation system converts, by a translator module, source instructions to target instructions. The binary translation system identifies a condition code block in the source instructions, where the condition code block includes a plurality of condition bits. In response to identifying the condition code block, the binary translation system provides an optimizer module to convert the condition code block. Then, the binary translation system performs a pre-execution on the condition code block to resolve the plurality of condition bits in the condition code block.Type: ApplicationFiled: September 21, 2012Publication date: October 9, 2014Inventors: Xueliang Zhong, Jianhui Li, Jian Ping Jane Chen, Gang Wang, Yi Qian, Huifeng Gu
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Patent number: 8739177Abstract: In a computing system, sharing a physical NIC device among multiple virtual machines may be implemented by a customer virtual machine by receiving, by a virtual network interface card (NIC) driver of a customer operating system (OS) running in the customer virtual machine on a computing system, a customer OS request packet for transmission by a physical NIC driver over a network coupled to the computing system, and copying at least a portion of the customer OS request packet into a free block of shared memory of the computing system and appending the block to a transmission queue in the shared memory.Type: GrantFiled: June 21, 2010Date of Patent: May 27, 2014Assignee: Intel CorporationInventors: Yi Qian, Hua Zhou, Fujin Huang, Michael A. Rothman, Vincent J. Zimmer
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Publication number: 20130296660Abstract: Methods for remotely measuring or monitoring one or more physiological parameters in a subject, such as blood volume pulse, heart rate, respiratory wave, or respiration rate, are provided. The methods include capturing a series of images of the subject, and processing the images to obtain physiological parameters of interest. These methods can be used to analyze single channel signals, including signals obtained from active night vision cameras. As a result, these methods can be used to measure or monitor one or more physiological parameters in both daylight and low-light conditions. Also provided are methods of removing false positives. Systems for remotely measuring or monitoring one or more physiological parameters in a subject, as well as methods of using thereof, are also provided.Type: ApplicationFiled: May 2, 2012Publication date: November 7, 2013Inventors: Joseph Z. Tsien, Meng Li, Fang Zhao, Yi Qian
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Patent number: 8477318Abstract: Described are an imaging device and method for determining three-dimensional position information of a surface of an object. The device includes a pair of optical fibers, a phase shifter, a detector array and a processor. The phase shifter is coupled to one of the optical fibers and is used to change a phase of optical radiation emitted from the optical fiber relative to a phase of optical radiation emitted from the other optical fiber. The detector array receives optical radiation scattered by the surface of the object. The processor communicates with the detector array and the phase shifter. Signals generated by the detector array are received by the processor and three-dimensional position information for the surface is calculated in response to the received optical radiation scattered by the surface of the object and the change in the relative phase of optical radiation emitted by the optical fibers.Type: GrantFiled: October 23, 2008Date of Patent: July 2, 2013Assignee: Dimensional Photonics International, Inc.Inventors: Robert F. Dillon, Yi Qian, Gurpreet Singh
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Publication number: 20130024469Abstract: A method for preventing regression defects when updating software components is disclosed. In one embodiment, such a method includes providing a source repository storing multiple software components (e.g., software modules, source files, sections of program code, etc.). The method determines associations between the software components and stores these associations in a database. The method further enables a user to check out a software component from the source repository in order to make updates, and check in the software component to the source repository once updates are made. At a designated time, such as when the software component is checked in or out, the method automatically checks the database to determine whether the software component has an association with any other software component in the source repository. The method notifies the user if an association is discovered. A corresponding computer program product and apparatus are also disclosed.Type: ApplicationFiled: July 21, 2011Publication date: January 24, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xiao Chuan Cai, Yi Qian, Nedzad Taljanovic, Yuan Wang
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Patent number: 8181176Abstract: In a computing system having a processor package, an operating system, and a physical I/O device, a partial virtual machine is provided to instantiate a virtual I/O device corresponding to the physical I/O device, the virtual I/O device having a virtual I/O controller. The partial virtual machine includes an I/O port trap to capture an I/O request to the virtual I/O device by the operating system; an I/O controller emulator coupled to the I/O port trap to handle an I/O control request to the virtual I/O controller, when the I/O request comprises an I/O control request; an I/O device emulator coupled to the I/O port trap component to handle an I/O access request to communicate with the virtual I/O device, when the I/O request comprises an I/O access request; and a device driver coupled to the I/O controller emulator and the I/O device emulator to communicate with the physical I/O device based at least in part on the I/O control request and the I/O access request.Type: GrantFiled: June 21, 2010Date of Patent: May 15, 2012Assignee: Intel CorporationInventors: Hua Zhou, Vincent J. Zimmer, Michael A. Rothman, Yi Qian, Junwei Stanley Chen, Fujin Huang