Patents by Inventor Yian Xu

Yian Xu 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: 9397906
    Abstract: A device receives information associated with network devices of a network, such as device information associated with components of the network devices, application information generated by the network devices, or network information associated with interactions of the network devices. The device performs an analysis of the information associated with the network devices via analytics techniques in near real time, and generates analysis information based on the analysis of the information associated with the network devices. The device provides the analysis information for display.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 19, 2016
    Assignee: VERIZON PATENT AND LICENSING INC.
    Inventors: Ashok N. Srivastava, Yian Xu, Yong Gao
  • Patent number: 9338478
    Abstract: Classifying a series of quantized transform coefficients of a block of image data into one of a pre-defined plurality of classes for entropy coding, and entropy coding the block. A class is defined by at least the size of the block and typically but not necessarily one or more other factors. The classified series is coded by one of a set of pre-defined entropy coding methods, e.g., variable length coding methods for the pre-defined classes.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 10, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Wen-hsiung Chen, Yian Xu
  • Publication number: 20160065428
    Abstract: A device receives information associated with network devices of a network, such as device information associated with components of the network devices, application information generated by the network devices, or network information associated with interactions of the network devices. The device performs an analysis of the information associated with the network devices via analytics techniques in near real time, and generates analysis information based on the analysis of the information associated with the network devices. The device provides the analysis information for display.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 3, 2016
    Inventors: Ashok N. Srivastava, Yian Xu, Yong Gao
  • Publication number: 20160065594
    Abstract: A device receives user information associated with a user of a user device that is associated with a network, and creates a user profile, associated with the user, based on the user information. The device determines threats to the network, by the user, based on the user profile. The threats to the network include insider threats, advanced persistent threats, bring your own device (BYOD) threats, cloud security threats, malware threats, and/or denial of service (DoS) threats. The device stores or presents, for display, information associated with the determined threats to the network by the user.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 3, 2016
    Inventors: Ashok N. Srivastava, Yong Gao, Yian Xu
  • Publication number: 20150103893
    Abstract: Classifying a series of quantized transform coefficients of a block of image data into one of a pre-defined plurality of classes for entropy coding, and entropy coding the block. A class is defined by at least the size of the block and typically but not necessarily one or more other factors. The classified series is coded by one of a set of pre-defined entropy coding methods, e.g., variable length coding methods for the pre-defined classes.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Inventors: Wen-hsiung Chen, Yian Xu
  • Patent number: 8934540
    Abstract: Classifying a series of quantized transform coefficients of a block of image data into one of a pre-defined plurality of classes for entropy coding, and entropy coding the block. A class is defined by at least the size of the block and typically but not necessarily one or more other factors. The classified series is coded by one of a set of pre-defined entropy coding methods, e.g., variable length coding methods for the pre-defined classes.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: January 13, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Wen-hsiung Chen, Yian Xu
  • Patent number: 8340448
    Abstract: A coding method, apparatus, and storage media with instructions to carry out a method. The method operates on an ordered series of transform coefficients of a block of image data, and for a fixed quantization method, and includes quantizing and encoding the ordered series to form a coded bitstream. The quantizing and encoding uses one or more variable length code (VLC) mappings. The quantizing includes quantizing to have amplitude-1 at least one coefficient that would be quantized by the fixed quantization method to have zero amplitude, quantizing to have zero amplitude at least one coefficient that would be quantized by the fixed quantization method to have amplitude-1, and using the fixed quantization method to quantize any coefficient that is quantized by the fixed quantization method not to have zero amplitude, amplitude-1, or amplitude-2.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: December 25, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Junlin Li, Dihong Tian, Wen-hsiung Chen, Yian Xu
  • Publication number: 20120020408
    Abstract: Classifying a series of quantized transform coefficients of a block of image data into one of a pre-defined plurality of classes for entropy coding, and entropy coding the block. A class is defined by at least the size of the block and typically but not necessarily one or more other factors. The classified series is coded by one of a set of pre-defined entropy coding methods, e.g., variable length coding methods for the pre-defined classes.
    Type: Application
    Filed: July 20, 2010
    Publication date: January 26, 2012
    Inventors: Wen-hsiung Chen, Yian Xu
  • Publication number: 20110080946
    Abstract: A coding method, apparatus, and storage media with instructions to carry out a method. The method operates on an ordered series of transform coefficients of a block of image data, and for a fixed quantization method, and includes quantizing and encoding the ordered series to form a coded bitstream. The quantizing and encoding uses one or more variable length code (VLC) mappings. The quantizing includes quantizing to have amplitude-1 at least one coefficient that would be quantized by the fixed quantization method to have zero amplitude, quantizing to have zero amplitude at least one coefficient that would be quantized by the fixed quantization method to have amplitude-1, and using the fixed quantization method to quantize any coefficient that is quantized by the fixed quantization method not to have zero amplitude, amplitude-1, or amplitude-2.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 7, 2011
    Inventors: Junlin Li, Dihong Tian, Wen-hsiung Chen, Yian Xu