Patents by Inventor Chao Sun

Chao Sun 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: 20200117539
    Abstract: Techniques are presented for efficiently storing deep neural network (DNN) weights or similar type data sets in non-volatile memory. For data sets, such as DNN weights, where the elements are multi-bit values, bits of the same level of significance from the elements of the data set are formed into data streams. For example, the most significant bit from each of the data elements are formed into one data stream, the next most significant bit into a second data stream, and so on. The different bit streams are then encoded with differing strengths of error correction code (ECC), with streams corresponding to more significant bits encoded with stronger ECC code than streams corresponding to less significant bits, giving the more significant bits of the data set elements a higher level of protection.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 16, 2020
    Applicant: Western Digital Technologies, Inc.
    Inventors: Chao Sun, Minghai Qin, Dejan Vucinic
  • Patent number: 10601850
    Abstract: A method of identifying risky user behaviors in computer networks includes determining behavior data of a user. The behavior data describes user activities of the user using a computer network. A particular event chain is identified from the behavior data. The particular event chain includes one or more events of the user activities. A risk coefficient of the particular event chain is determined. Based on the risk coefficient, whether the particular event chain represents a risky user behavior is determined.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: March 24, 2020
    Assignee: Alibaba Group Holding Limited
    Inventors: Renxin Mao, Chao Sun, Xinkai Li, Dijun He
  • Publication number: 20200049707
    Abstract: A centripetal microfluidic platform comprised of a microfluidics disc and a reader for testing LAL-reactive substances in fluid samples is provided. The microfluidic disc may comprise at least two testing areas wherein each testing area includes a reservoir portion for receiving at least one fluid sample. The disc may comprise a distribution network portion in fluid communication with the reservoir portion. Each distribution network portion may comprise a distribution network of at least four (4) channels, wherein each channel has a metering portion and at least one analysis chamber portion. The analysis chamber portion may comprise a mixing chamber for mixing samples and reagents and an optical chamber portion that is compatible with an optical reader. The metering portion may be sized to meter an aliquot of the fluid sample for analysis in the analysis chamber portion. At least one analysis chamber portion has at least one reagent isolated therein.
    Type: Application
    Filed: October 22, 2019
    Publication date: February 13, 2020
    Inventors: Paul Charles Melanson, Richard Douglas Godec, Matthew Kaddeland STONESMITH, Darren Barry Smith, Chao Sun
  • Patent number: 10551490
    Abstract: The present disclosure relates to a security inspection system and method using the three-dimensional holographic imaging technology. The system comprises: a body frame; a millimeter-wave transceiving module, disposed on the body frame; and at least two millimeter-wave switch antenna arrays, connected with the millimeter-wave transceiving module; the number of the millimeter-wave switch antenna arrays being the same as that of the scan areas; a scan driving device, configured to drive the at least two millimeter-wave switch antenna arrays to rotate along the same direction; a control device, configured to control the scan driving device to generate a rotation angle signal; and a parallel-image processing module, configured to synthesize a three-dimensional holographic image of an under-test object according to echo signals collected by the millimeter-wave transceiving module and spatial position information of the echo signals.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: February 4, 2020
    Assignees: SHENZHEN CCT THZ TECHNOLOGY CO., LTD., CHINA COMMUNICATION TECHNOLOGY CO., LTD.
    Inventors: Chunchao Qi, Chao Sun, Guangsheng Wu, Shukai Zhao, Qing Ding
  • Patent number: 10552251
    Abstract: Disclosed include a device and a method for storing a neural network. The device includes a plurality of memory cells configured to store weights of the neural network. The plurality of memory cells may include one or more faulty cells. The device further includes a processor coupled to the plurality of memory cells. The processor is configured to construct the neural network based on a structure of the neural network and a subset of the weights stored by the plurality of memory cells. The subset of the weights may exclude another subset of the weights stored by one or more memory cells comprising the one or more faulty cells.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: February 4, 2020
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Minghai Qin, Dejan Vucinic, Chao Sun
  • Patent number: 10505934
    Abstract: A sensitive information processing method, device and server, and a security determination system. The method includes acquiring to-be-processed information in a page; determining whether the to-be-processed information is sensitive information according to a preset sensitive information identification strategy; performing processing according to a preset sensitive information processing strategy when the to-be-processed information is sensitive information, to form processed sensitive information; and substituting the corresponding to-be-processed information in the page with the processed sensitive information, to form a page with the processed sensitive information. By using the example embodiments of the present application, identification and processing for sensitive information in a page returned to a user may be completed on a server terminal, which improves the security of the sensitive information in the page.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: December 10, 2019
    Assignee: Alibaba Group Holding Limited
    Inventors: Xiang Zhang, Jianping Lv, Zhengrong Chen, Ke Yang, Huiqing Xu, Wei Mou, Xingang Wang, Chao Sun, Xiaoxue Yu, Qinfei Jiang, Hanxiao Xiao
  • Publication number: 20190353776
    Abstract: A millimeter wave imaging apparatus includes a crystal oscillator, a power divider, a millimeter wave transceiver unit, a local-oscillation signal processing unit, a second frequency mixer and an image processing device; the power divider performs power distribution on an oscillation signal generated by the crystal oscillator, and outputs a clock trigger signal and a local-oscillation signal; the local-oscillation signal processing device processes the local-oscillation signal and outputs a second local-oscillation signal; the millimeter wave transceiver unit processes an echo signal reflected by an object to be detected, and outputs a first intermediate-frequency signal; the second frequency mixer mixes the second local-oscillation signal and the first intermediate-frequency signal, and outputs a second intermediate-frequency signal; the image processing module processes the second intermediate-frequency signal, and images the object to be detected.
    Type: Application
    Filed: August 9, 2016
    Publication date: November 21, 2019
    Applicants: China Commuunication Technology Co., Ltd., Shenzhen Institute of Terahertz Technology and Innovation Co., Ltd.
    Inventors: Juncheng LIU, Chao SUN, Chunchao QI
  • Patent number: 10451622
    Abstract: A centripetal microfluidic platform comprised of a microfluidics disc and a reader for testing LAL-reactive substances in fluid samples is provided. The microfluidic disc may comprise at least two testing areas wherein each testing area includes a reservoir portion for receiving at least one fluid sample. The disc may comprise a distribution network portion in fluid communication with the reservoir portion. Each distribution network portion may comprise a distribution network of at least four (4) channels, wherein each channel has a metering portion and at least one analysis chamber portion. The analysis chamber portion may comprise a mixing chamber for mixing samples and reagents and an optical chamber portion that is compatible with an optical reader. The metering portion may be sized to meter an aliquot of the fluid sample for analysis in the analysis chamber portion. At least one analysis chamber portion has at least one reagent isolated therein.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: October 22, 2019
    Assignee: BL TECHNOLOGIES, INC.
    Inventors: Paul Charles Melanson, Richard Douglas Godec, Matthew Kaddeland Stonesmith, Darren Barry Smith, Chao Sun
  • Publication number: 20190302230
    Abstract: A disclosed method includes: dividing an signal into a first signal and a second signal; performing frequency multiplication and amplification on the first signal to obtain an intermediate signal of corresponding power and frequency, and using the second signal as a local oscillation signal. The method further includes dividing the intermediate signal into a first intermediate signal and a second intermediate signal, and using the first intermediate signal as a reference signal; performing frequency mixing on the second intermediate signal and the local oscillation signal to obtain a mixed signal, which is a high-frequency millimeter wave signal; transmitting the mixed signal by a transmitting antenna; and performing frequency mixing on the signal received by a receiving antenna and the reference signal to obtain an intermediate-frequency controllable signal having a frequency consistent with that of the output signal of the signal source.
    Type: Application
    Filed: July 5, 2017
    Publication date: October 3, 2019
    Inventors: Chao Sun, Juncheng Liu, Chunchao Qi, Guangsheng WU, Shukai Zhao, Qing Ding
  • Patent number: 10430329
    Abstract: A device having a controller configured to interface with a host, a storage class memory configured to interface with the controller and a flash memory configured to interface with the controller, wherein both the storage class memory and the flash memory are configured to store data, and wherein the controller is configured to separate the data according to latency critical data and non-latency critical data.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 1, 2019
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Chao Sun, Adam Manzanares, Minghai Qin, Dejan Vucinic, Frank R. Chu
  • Publication number: 20190294903
    Abstract: Described are methods, systems, and apparatuses for 3D vision processing using an IP block. A vision processing module comprises an integrated circuit that performs one or more 3D vision processing algorithms and a plurality of controllers that couple the integrated circuit to each of: a sensor device, a processor, a memory module, and a network interface. The vision processing module receives image data from the sensor device, the image data corresponding to one or more images captured by the sensor device. The vision processing module executes one or more of the 3D vision processing algorithms using at least a portion of the image data as input. The vision processing module transmits an output from execution of one or more of the 3D vision processing algorithms to at least one of: the processor, the memory module, or the network interface.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Inventors: Chao Sun, Xin Hou, Ken Lee
  • Publication number: 20190261026
    Abstract: The present disclosure relates to a multimedia information playing method and system, a standardized server and a live broadcast terminal, and relates to the technical field of networks. The method includes receiving n pieces of multimedia information from the n acquisition devices, respectively, each of the n pieces of multimedia information being obtained by acquiring ambient environmental information by a corresponding acquisition device; receiving a selection instruction from the live broadcast terminal; selecting initial multimedia information from the n pieces of multimedia information based on the selection instruction; and sending the initial multimedia information to the playing terminal that is configured to play the initial multimedia information.
    Type: Application
    Filed: October 31, 2016
    Publication date: August 22, 2019
    Applicant: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Shangyou HAN, Chao SUN, Zegao YU
  • Patent number: 10387303
    Abstract: A memory system (e.g. a solid state drive) includes one or more non-volatile memory die, a controller in communication with the memory die and a compute engine inside the memory system that is near the location of the data and can be used to perform common data manipulation operations.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: August 20, 2019
    Assignee: Western Digital Technologies, Inc.
    Inventors: Pankaj Mehra, Vidyabhushan Mohan, Seung-Hwan Song, Dejan Vucinic, Chao Sun, Minghai Qin, Arup De
  • Publication number: 20190243022
    Abstract: A close range microwave imaging method and system is provided. The method comprises: controlling a linear antenna array consisting of a preset number of antennas to rotate along a preset arc trajectory so as to scan a target region; controlling the linear antenna array to acquire a preset number of echo data at azimuthal positions on the arc trajectory and to send an echo data set constituted by the preset number of echo data to a signal processing device until the linear antenna array completes the acquisition of echo data at preset azimuthal positions on the arc trajectory; and controlling, every time the signal processing device receives the echo data set, the signal processing device to perform imaging processing on the echo data set.
    Type: Application
    Filed: August 4, 2017
    Publication date: August 8, 2019
    Inventors: Chunchao Qi, Aixian Wang, Hanjiang Chen, Lingxia Guo, Chao Sun, Xiaoxiang Hou, Shukai Zhao
  • Patent number: 10373528
    Abstract: The present disclosure generally relates to a method of burning a file in a memory device after the file has been read. Once a file has been read, an algorithm uses the memory device to create errors that the error correction code (ECC) cannot decode the error. In creating the error, the entire word line is destroyed physically rather than logically so that retrieving information from that particular word line is no longer possible. In creating the error, adjacent word lines are not affected. The error renders the file burned.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: August 6, 2019
    Assignee: Western Digital Technologies, Inc.
    Inventors: Zvonimir Z. Bandic, Robert Eugeniu Mateescu, Minghai Qin, Chao Sun
  • Publication number: 20190238529
    Abstract: This specification provides techniques for secure authentication. One example method includes receiving a login request from a computing device, wherein the login request includes a variable apparatus identifier (ID) associated with the computing device; in response to receiving the login request, determining that the variable apparatus ID corresponds to a user account; in response to determining that the variable apparatus ID corresponds to a user account, determining that an update of the variable apparatus ID is requested based on a timestamp included in the variable apparatus ID and a current time; in response to determining that the update of the variable apparatus ID is requested, generating an updated variable apparatus ID associated with the computing device; and transmitting an account login permission instruction and the updated variable apparatus ID to the computing device.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 1, 2019
    Applicant: Alibaba Group Holding Limited
    Inventor: Chao Sun
  • Publication number: 20190227190
    Abstract: A millimeter wave security inspection instrument debugging system and a millimeter wave security inspection instrument debugging method, which are used for debugging the imaging definition of a millimeter wave holographic imaging security inspection system. A main control apparatus is used for generating a millimeter wave detection signal and a reference signal. The main control apparatus is also used for, where a millimeter wave transmitting antenna, a millimeter wave receiving antenna and a detected object are respectively located at different relative positions, transmitting the millimeter wave detection signal to the detected object by means of the millimeter wave transmitting antenna, and receiving an echo signal reflected from the detected object by means of the millimeter wave receiving antenna, and then using a holographic image technique to perform three-dimensional imaging according to the reference signal and the echo signal.
    Type: Application
    Filed: July 6, 2017
    Publication date: July 25, 2019
    Inventors: Chunchao QI, Chao Sun, Shukai Zhao, Guangsheng WU, Qing DING
  • Publication number: 20190227036
    Abstract: A method for measuring mechanical parameters of a multilayer composite thin film structure and belongs to the technical field of online tests of micro-electro-mechanical system (MEMS for short) material parameters. Equivalent Young modulus and equivalent residual stress of each layer of the multilayer composite thin film structure can be obtained in one step by means of solving an equation set on the basis of a relationship between first-order resonance frequency of multilayer composite fixed-fixed beams and multilayer composite cantilever beams and parameters such as material characteristics and structure size, the online test of multilayer thin film materials can be realized, the test structure and calculating method are simple, and the accuracy is higher. The present invention further discloses a device for measuring mechanical parameters of the multilayer composite thin film structure.
    Type: Application
    Filed: February 11, 2018
    Publication date: July 25, 2019
    Inventors: Zaifa ZHOU, Chao SUN, Xinge GUO, Qingan HUANG
  • Patent number: 10360973
    Abstract: In this disclosure, data mapping based on three dimensional lattices that have an improved sum rate (i.e., lifetime capacity) with low read latency is disclosed. During the write, a memory location is written to multiple times prior to erasure. Specifically, for the first write, there are 4/3 bits per cell available for writing, which is about 10.67 kB per cell are used for data storage. Then, for the second write, there is one bit per cell, which is 8 kB per cell for data storage. If considering a block with 128 different cells and writing 32 kB of data, the first write results in 42.66 data writes while the second write results in 32 writes for a total of 74.66 writes. Previously, the number of writes for 32 kB would be 64 writes. Thus, by writing twice prior to erasure, more data can be stored.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: July 23, 2019
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Zvonimir Z. Bandic, Robert Eugeniu Mateescu, Minghai Qin, Chao Sun
  • Publication number: 20190205062
    Abstract: A method is disclosed describing receiving a command to perform one of a write operation and a read operation for a memory arrangement, creating a number of hard streams to accept data, wherein the number of hard streams is less than or equal to a total number of streams that the memory arrangement may create, mapping data to the hard streams based upon a heat designation of the data, transferring data to the hard streams, the data transferred to the hard streams categorized based upon a heat value of the data and performing the one of the write operation and the read operation for the memory arrangement.
    Type: Application
    Filed: January 4, 2018
    Publication date: July 4, 2019
    Inventors: Chao SUN, Xinde HU, Minghai QIN, Dejan VUCINIC