Patents by Inventor Zhengye Liu

Zhengye Liu 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: 20180288773
    Abstract: Aspects of the subject disclosure may include, for example, a system that provides for obtaining, by a server comprising a processor, network parameter data from an eNodeB of a wireless network. The server can determine a predicted bandwidth for a group of end user devices in a coverage area of the eNodeB according to the network parameter data. The server can receive, from an end user device of the group of end user devices, a request for the predicted bandwidth. The server can provide the predicted bandwidth to the end user device. The providing of the predicted bandwidth enables the end user device to provide a video chunk request to a content server that is based on a selected chunk delivery schedule and facilitates streaming of video content to the end user device from the content server. Other embodiments are disclosed.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 4, 2018
    Inventors: Zhengye Liu, ZUXIAN GUO, DHRUV GUPTA, XIAOJUN TANG, JIN WANG, WEIHUA YE, YONGDONG ZHAO
  • Publication number: 20180248848
    Abstract: Concepts and technologies disclosed herein are directed to proxy-based database encryption. According to one aspect, a database encryption proxy system can receive, from a database client, input of a Structured Query Language (“SQL”) statement and data to create an encrypted database table. At least a portion of the data is marked with an encrypted identifier to identify which data is to be encrypted by the proxy-based database. The database encryption proxy system can generate a random string for the portion of the data that is marked with the encrypted identifier. The database encryption proxy system can convert the SQL statement into a converted SQL statement that includes the random string in place of the portion of the data marked with the encrypted identifier and can send the converted SQL statement to a cloud database service that is configured to create the encrypted database table based upon the converted SQL statement.
    Type: Application
    Filed: February 28, 2017
    Publication date: August 30, 2018
    Applicants: AT&T Intellectual Property I, L.P., AT&T Mobility II LLC
    Inventors: Xidong Wu, Zhengye Liu, Mario Kosseifi
  • Publication number: 20180160192
    Abstract: Management of multimedia communications is provided. A method can include identifying, by a device comprising a processor, an available media communication, wherein the available media communication comprises an audio stream and a video stream that is distinct from the audio stream, receiving, by the device, the audio stream of the available media communication, resulting in a received media stream, altering, by the device, the received media stream, resulting in an altered media stream, and facilitating, by the device, a rendering of the altered media stream.
    Type: Application
    Filed: December 6, 2016
    Publication date: June 7, 2018
    Inventors: Xidong Wu, Mario Kosseifi, Zhengye Liu
  • Publication number: 20180103283
    Abstract: Aspects of the subject disclosure may include, for example, a device including a processing system including a processor and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, including monitoring network traffic to determine a transmission control protocol traffic pattern, determining a target video rate from the transmission control protocol traffic pattern, and modifying an over-the-top video delivery service network according to the target video rate. Other embodiments are disclosed.
    Type: Application
    Filed: October 10, 2016
    Publication date: April 12, 2018
    Inventors: ZHENGYE LIU, JIN WANG, YALI LIU, YONGDONG ZHAO
  • Patent number: 9066158
    Abstract: An invention is described including calculating a real packet loss rate in a time slot at the end of the time slot, estimating average packet loss rate for a subsequent time slot, estimating variance of packet loss rate for the subsequent time slot and estimating the packet loss rate for the subsequent time slot. An invention is also described for dynamically allocating available bandwidth for video multicast including selecting an intra-frame rate, determining a packet loss rate threshold, receiving user topology information, receiving channel conditions for each user, determining an optimal operation point for encoding and transmitting video frames in a subsequent time slot, adapting dynamically quantization parameters and a forward error correction code rate, encoding the video frames using the quantization parameters and applying forward error correction code with the forward error correction code rate to data packets of the video frames to generate forward error correction packets.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: June 23, 2015
    Assignee: Thomson Licensing
    Inventors: Zhengye Liu, Hang Liu, Yao Wang
  • Publication number: 20150170293
    Abstract: A method, computer-readable storage device and apparatus for addressing a problem in a network using social media are disclosed. For example, the method receives social media data, analyzes the social media data to detect a trend for a service provided by the communication network, wherein the trend indicates a problem with the service, correlates an operational parameter of the communication network providing the service to the problem with the service and adjusts the operational parameter of the communication network to address the problem.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 18, 2015
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: MARK BRADY, Zhengye Liu, Stephen A. Sposato, Jin Wang, Xidong Wu
  • Patent number: 8395990
    Abstract: A method and apparatus are described including receiving a coded packet of content associated with a layer, receiving feedback information regarding channel conditions and applying hybrid automatic repeat request to deliver the packet based on said feedback information. The method and apparatus wherein applying hybrid automatic repeat request layer-wise further includes determining if a resource is exhausted, scheduling delivery of layered coded content packets for a layer, if the resource has not been exhausted, determining if all layered coded content packets for the layer have been transmitted, proceeding to the first determining step, if all layered coded content packets for a layer have not been transmitted, determining if an acknowledgement message has been received from a user device, determining if the resource is exhausted, if no acknowledgement has not been received and scheduling delivery of layered coded forward error correction packets, if the resource has not been exhausted.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: March 12, 2013
    Assignee: Thomson Licensing
    Inventors: Zhenyu Wu, Zhengye Liu, Alan Jay Stein
  • Patent number: 8290037
    Abstract: MD-FEC is considered an efficient way to generate a large number of descriptions. However, typically, MD-FEC introduces significant redundancy across streams. MD-FEC encoded streams (descriptions) are adapted based on feedback. Specifically, the bits sent in each description by a supplying peer are adapted based on the number of available descriptions in its receiving peer. The adaptive delivery eliminates unnecessary bits in the original MD-FEC streams (descriptions), and significantly reduces the consumed uplink bandwidth at supplying peers. The saved bandwidth can be used to accommodate more video sessions or for other applications.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: October 16, 2012
    Assignee: Polytechnic Institute of New York University
    Inventors: Zhengye Liu, Shivendra S. Panwar, Keith W. Ross, Yanming Shen, Yao Wang
  • Publication number: 20120093017
    Abstract: An invention is described including calculating a real packet loss rate in a time slot at the end of the time slot, estimating average packet loss rate for a subsequent time slot, estimating variance of packet loss rate for the subsequent time slot and estimating the packet loss rate for the subsequent time slot. An invention is also described for dynamically allocating available bandwidth for video multicast including selecting an intra-frame rate, determining a packet loss rate threshold, receiving user topology information, receiving channel conditions for each user, determining an optimal operation point for encoding and transmitting video frames in a subsequent time slot, adapting dynamically quantization parameters and a forward error correction code rate, encoding the video frames using the quantization parameters and applying forward error correction code with the forward error correction code rate to data packets of the video frames to generate forward error correction packets.
    Type: Application
    Filed: November 16, 2011
    Publication date: April 19, 2012
    Inventors: Zhengye LIU, Hang LIU, Yao WANG
  • Patent number: 8089892
    Abstract: A method and apparatus for estimating packet loss rate are described including calculating a real packet loss rate in a time slot at the end of the time slot, estimating average packet loss rate for a subsequent time slot, estimating variance of packet loss rate for the subsequent time slot and estimating the packet loss rate for the subsequent time slot.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: January 3, 2012
    Assignee: Thomson Licensing
    Inventors: Zhengye Liu, Hang Liu, Yao Wang
  • Publication number: 20100246390
    Abstract: A method and apparatus are described including receiving a coded packet of content associated with a layer, receiving feedback information regarding channel conditions and applying hybrid automatic repeat request to deliver the packet based on said feedback information. The method and apparatus wherein applying hybrid automatic repeat request layer-wise further includes determining if a resource is exhausted, scheduling delivery of layered coded content packets for a layer, if the resource has not been exhausted, determining if all layered coded content packets for the layer have been transmitted, proceeding to the first determining step, if all layered coded content packets for a layer have not been transmitted, determining if an acknowledgement message has been received from a user device, determining if the resource is exhausted, if no acknowledgement has not been received and scheduling delivery of layered coded forward error correction packets, if the resource has not been exhausted.
    Type: Application
    Filed: November 1, 2007
    Publication date: September 30, 2010
    Inventors: Zhenyu Wu, Zhengye Liu, Alan Jay Stein
  • Publication number: 20100226262
    Abstract: A method and apparatus for estimating packet loss rate are described including calculating a real packet loss rate in a time slot at the end of the time slot, estimating average packet loss rate for a subsequent time slot, estimating variance of packet loss rate for the subsequent time slot and estimating the packet loss rate for the subsequent time slot.
    Type: Application
    Filed: December 15, 2005
    Publication date: September 9, 2010
    Inventors: Zhengye Liu, Hang Liu, Yao Wang
  • Publication number: 20100005185
    Abstract: In a live video P2P system using substream trading, a peer device's video quality is generally commensurate with its upload rate. Such substream trading provides in a P2P live video streaming system provides incentives and can accommodate a variety of video coding schemes. In particular, substream trading with layered video has many desirable properties, including differentiated service, short start-up delays, synergies across peer device types, and protection against free-riders.
    Type: Application
    Filed: June 24, 2009
    Publication date: January 7, 2010
    Inventors: Zhengye Liu, Shivendra S. Panwar, Keith W. Ross, Yamming Shen, Yao Wang
  • Publication number: 20090034614
    Abstract: MD-FEC is considered an efficient way to generate a large number of descriptions. However, typically, MD-FEC introduces significant redundancy across streams. MD-FEC encoded streams (descriptions) are adapted based on feedback. Specifically, the bits sent in each description by a supplying peer are adapted based on the number of available descriptions in its receiving peer. The adaptive delivery eliminates unnecessary bits in the original MD-FEC streams (descriptions), and significantly reduces the consumed uplink bandwidth at supplying peers. The saved bandwidth can be used to accommodate more video sessions or for other applications.
    Type: Application
    Filed: June 25, 2008
    Publication date: February 5, 2009
    Inventors: Zhengye Liu, Shivendra S. Panwar, Keith W. Ross, Yanming Shen, Yao Wang
  • Publication number: 20090037968
    Abstract: A distributed incentive mechanism is provided for peer-to-peer (P2P) streaming networks, such as mesh-pull P2P live streaming networks. Video (or audio) may be encoded into multiple sub-streams such as layered coding and multiple description coding. The system is heterogeneous with peers having different uplink bandwidths. Peers that upload more data (to a peer) receive more substreams (from that peer) and consequently better video quality. Unlike previous approaches in which each peer receives the same video quality no matter how much bandwidth it contributes to the system, differentiated video quality, commensurate with a peer's contribution to other peers, is provided, thereby discouraging free-riders.
    Type: Application
    Filed: June 25, 2008
    Publication date: February 5, 2009
    Inventors: Zhengye Liu, Shivendra S. Panwar, Keith W. Ross, Yanming Shen, Yao Wang