Patents by Inventor David Zhao

David Zhao 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: 8213506
    Abstract: A method of transmitting video, a method of receiving and decoding video, and a corresponding transmitter, receiver and computer program products. The method of transmitting video to one or more recipient terminals comprises: transmitting a stream of inter frame encoded video data to a recipient terminal; during ongoing transmission of the stream to the recipient terminal, receiving a request signal from that recipient terminal; and in response to the request signal, transmitting alternatively encoded video data to the recipient terminal in association with the inter frame encoded video data.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: July 3, 2012
    Assignee: Skype
    Inventor: David Zhao
  • Publication number: 20120151334
    Abstract: The present invention is directed to a method and system for verifying a user for copying or printing a limited portion of digital content while allowing the user to view the digital content. The digital content may have image portions that are digital images generally scanned from a printed page of the content and text portions that are digital texts including all forms of letters, characters, symbols, etc. An interactive image document displaying image portions of the digital content is provided for secure data access to text portions. A user can request and obtain a limited text portion of the digital content or view the image portions of the digital content via user interactions within the interactive image document. While the text portions can be reproduced, copied, or printed, the image portions can not be re-used or manipulated by the user due to their non-text accessible format.
    Type: Application
    Filed: February 6, 2012
    Publication date: June 14, 2012
    Inventors: Robert L. Goodwin, David Zhao, Adrian Tsang Kwong Chan, Chieh Wang, Michael V. Rykov
  • Patent number: 8180915
    Abstract: A method of delivering an encoded data stream to a plurality of recipient end-user nodes of a network includes receiving an incoming encoded data stream at a first recipient node from a transmitting node over the network. During ongoing receipt of the incoming encoded data stream at the first recipient node from the transmitting node, the incoming encoded data stream is decoded at the first recipient node to produce a decoded data stream that is output for consumption at the first recipient node. The decoded data stream is used to generate a modified encoded data stream being a modified version of the incoming encoded data stream. Still during ongoing receipt of the incoming encoded data stream at the first recipient node from the transmitting node, the modified encoded data stream is relayed from the first recipient node to one or more second recipient nodes over the network.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: May 15, 2012
    Assignee: Skype Limited
    Inventor: David Zhao
  • Patent number: 8112813
    Abstract: The present invention is directed to a method and system for verifying a user for copying or printing a limited portion of digital content while allowing the user to view the digital content. The digital content may have image portions that are digital images generally scanned from a printed page of the content and text portions that are digital texts including all forms of letters, characters, symbols, etc. An interactive image document displaying image portions of the digital content is provided for secure data access to text portions. A user can request and obtain a limited text portion of the digital content or view the image portions of the digital content via user interactions within the interactive image document. While the text portions can be reproduced, copied, or printed, the image portions can not be re-used or manipulated by the user due to their non-text accessible format.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: February 7, 2012
    Assignee: Amazon Technologies, Inc.
    Inventors: Robert L Goodwin, David Zhao, Adrian Tsang Kwong Chan, Chieh Wang, Michael V Rykov
  • Publication number: 20110153782
    Abstract: A method of delivering an encoded data stream to a plurality of recipient end-user nodes of a network includes receiving an incoming encoded data stream at a first recipient node from a transmitting node over the network. During ongoing receipt of the incoming encoded data stream at the first recipient node from the transmitting node, the incoming encoded data stream is decoded at the first recipient node to produce a decoded data stream that is output for consumption at the first recipient node. The decoded data stream is used to generate a modified encoded data stream being a modified version of the incoming encoded data stream. Still during ongoing receipt of the incoming encoded data stream at the first recipient node from the transmitting node, the modified encoded data stream is relayed from the first recipient node to one or more second recipient nodes over the network.
    Type: Application
    Filed: January 29, 2010
    Publication date: June 23, 2011
    Inventor: David Zhao
  • Publication number: 20110058607
    Abstract: A method of transmitting video, a method of receiving and decoding video, and a corresponding transmitter, receiver and computer program products. The method of transmitting video to one or more recipient terminals comprises: transmitting a stream of inter frame encoded video data to a recipient terminal; during ongoing transmission of the stream to the recipient terminal, receiving a request signal from that recipient terminal; and in response to the request signal, transmitting alternatively encoded video data to the recipient terminal in association with the inter frame encoded video data.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 10, 2011
    Applicant: Skype Limited
    Inventor: David Zhao
  • Patent number: 7667719
    Abstract: The present invention is directed to a method and system for continuously displaying image pages of digital content which are available over a network. More specifically, the method and system enables a user to view image pages in a continuous manner while a limited number of image pages are being downloaded at a given time. Several image pages which are adjacent to the image page(s) the user is currently viewing may be stored in temporary memory. The image pages in the temporary memory are utilized so that, within the image pages, the user can move the displayed image pages up and down without experiencing any discontinuation. In order to ensure continuous display throughout the entire digital content, the next possible set of image pages is constantly determined and obtained to update the current set of image pages in the temporary memory.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: February 23, 2010
    Assignee: Amazon Technologies, Inc.
    Inventors: Robert L Goodwin, David Zhao, Adrian Tsang Kwong Chan, Chieh Wang, Michael V Rykov
  • Patent number: 7607508
    Abstract: A safety restraint system (10) for a vehicle (12) includes a seat belt buckle (60) and a retractor (53) mounted approximately at or below a pelvic level of a vehicle occupant (98). A seat belt (52) extends over a side pelvic portion (97) of vehicle occupant (98) and directly prevents outward lateral displacement of the side pelvic portion (97) during a side collision event.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: October 27, 2009
    Assignee: Ford Global Technologies LLC
    Inventors: David Zhao, Leonard A. Shaner, James C. Cheng
  • Patent number: 7590530
    Abstract: A central aspect of the invention relates to a method of enhancing speech, the method comprising the steps of, receiving noisy speech comprising a clean speech component and a non-stationary noise component, providing a speech model, providing a noise model having at least one shape and a gain, dynamically modifying the noise model based on the speech model and the received noisy speech, enhancing the noisy speech at least based on the modified noise model. Hereby is achieved a method of speech enhancement that is able to suppress highly non-stationary noise. Another aspect of the invention relates to a speech enhancement system that may be adapted to be used in a hearing system, such as a hearing aid or a headset.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: September 15, 2009
    Assignee: GN Resound A/S
    Inventors: David Zhao, Willem Bastiaan Kleijn, Alexander Ypma, Bert Devries
  • Publication number: 20090144500
    Abstract: Apparatus and methods relating to store operations are disclosed. In one embodiment, a first storage unit is to store data. A second storage unit is to store the data only after it has become detectable by a bus agent. Moreover, the second storage unit may store an index field for each data value to be stored within the second storage unit. Other embodiments are also disclosed.
    Type: Application
    Filed: January 27, 2009
    Publication date: June 4, 2009
    Inventors: Vladimir Pentkovksi, Ling Cen, Vivek Garg, Deep Buch, David Zhao
  • Patent number: 7484045
    Abstract: A store operation architecture in which store operation latency and read-for-ownership (RFO) throughput are improved. Embodiments of the invention relate to a method and apparatus to improve store performance in a microprocessor by allowing out-of-order issuance of RFO operations and more efficiently using the store buffer latency periods.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: January 27, 2009
    Assignee: Intel Corporation
    Inventors: Vladimir Pentkovksi, Ling Cen, Vivek Garg, Deep Buch, David Zhao
  • Patent number: 7448645
    Abstract: A side impact airbag and deployment system including an inflator is provided. The airbag has a generally B-shaped, or hour-glass, configuration and has a broad shoulder loading portion, a narrow central portion, and a broad pelvis loading portion.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: November 11, 2008
    Assignee: Ford Global Technologies, LLC
    Inventors: James Bederka, David Zhao, Krish Aekbote, Leonard Shaner
  • Patent number: 7371520
    Abstract: The invention relates to methods for analyzing and characterizing single polymers such as nucleic acid molecules. In preferred embodiments, the single molecules are analyzed using single molecule detection and analysis systems.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: May 13, 2008
    Assignee: U.S. Genomics, Inc.
    Inventors: Xiaojian (David) Zhao, Jeffrey D. Randall, Bijit Kundu, Jessica Kesty, Steve R. Gullans, Eugene Y. Chan, Martin Fuchs
  • Publication number: 20080103296
    Abstract: The invention relates to methods for analyzing and characterizing single polymers such as nucleic acid molecules. In preferred embodiments, the single molecules are analyzed using single molecule detection and analysis systems.
    Type: Application
    Filed: March 19, 2007
    Publication date: May 1, 2008
    Applicant: U.S. Genomics, Inc.
    Inventors: Xiaojian David Zhao, Jeffrey D. Randall, Bijit Kundu, Jessica Kesty, Steven R. Gullans, Eugene Y. Chan, Martin Fuchs, Jenny E. Rooke
  • Publication number: 20080079972
    Abstract: The present invention is directed to a method and system for continuously displaying image pages of digital content which are available over a network. More specifically, the method and system enables a user to view image pages in a continuous manner while a limited number of image pages are being downloaded at a given time. Several image pages which are adjacent to the image page(s) the user is currently viewing may be stored in temporary memory. The image pages in the temporary memory are utilized so that, within the image pages, the user can move the displayed image pages up and down without experiencing any discontinuation. In order to ensure continuous display throughout the entire digital content, the next possible set of image pages is constantly determined and obtained to update the current set of image pages in the temporary memory.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Inventors: Robert L. Goodwin, David Zhao, Adrian Tsang Kwong Chan, Chieh Wang, Michael V. Rykov
  • Patent number: 7282330
    Abstract: The invention relates to methods for analyzing and characterizing single polymers such as nucleic acid molecules. In preferred embodiments, the single molecules are analyzed using single molecule detection and analysis systems.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: October 16, 2007
    Assignee: U.S. Genomics, Inc.
    Inventors: Xiaojian (David) Zhao, Jeffrey D. Randall, Bijit Kundu, Jessica Kesty, Steven R. Gullans, Eugene Y. Chan, Martin Fuchs, Jenny E. Rooke
  • Publication number: 20070228699
    Abstract: A side impact airbag and deployment system including an inflator is provided. The airbag has a generally B-shaped, or hour-glass, configuration and has a broad shoulder loading portion, a narrow central portion, and a broad pelvis loading portion.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 4, 2007
    Applicant: Ford Global Technologies, LLC
    Inventors: James Bederka, David Zhao, Krish Aekbote, Leonard Shaner
  • Publication number: 20070055508
    Abstract: A central aspect of the invention relates to a method of enhancing speech, the method comprising the steps of, receiving noisy speech comprising a clean speech component and a non-stationary noise component, providing a speech model, providing a noise model having at least one shape and a gain, dynamically modifying the noise model based on the speech model and the received noisy speech, enhancing the noisy speech at least based on the modified noise model. Hereby is achieved a method of speech enhancement that is able to suppress highly non-stationary noise. Another aspect of the invention relates to a speech enhancement system that may be adapted to be used in a hearing system, such as a hearing aid or a headset.
    Type: Application
    Filed: August 23, 2006
    Publication date: March 8, 2007
    Applicant: GN ReSound A/S
    Inventors: David Zhao, Willem Kleijn, Alexander Ypma, Bert Devries
  • Patent number: 7114011
    Abstract: A multiprocessor-scalable streaming data server arrangement in a multiprocessor data server having N processors, N being an integer greater than or equal to 2, includes implementing N NICs (Network Interface Cards), a first one of the N NICs being dedicated to receiving an incoming data stream. An interrupt from the first one of the N NICs is bound to a first one of the N processors and an interrupt for an nth NIC is bound to an nth processor, 0<n<=N. A DPC (Deferred Procedure Call) for the nth NIC is bound to the nth processor. M client connections may be tightly coupled to the nth processor via the nth NIC, M being a positive integer. P server threads may be bound to specific ones of a second through N processors. L1 (Level 1) and L2 (Level 2) caches may be defined for each of the N processors, instructions and temporal data being stored in L2 caches of the N processors and non-temporal data being stored in L1 caches of the N processors, bypassing the L2 caches.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: September 26, 2006
    Assignee: Intel Corporation
    Inventors: Deep K. Buch, Zhenjun Hu, Neil Schaper, David Zhao, Vladimir M. Pentkovski
  • Publication number: 20060090946
    Abstract: A safety restraint system (10) for a vehicle (12) includes a seat belt buckle (60) and a retractor (53) mounted approximately at or below a pelvic level of a vehicle occupant (98). A seat belt (52) extends over a side pelvic portion (97) of vehicle occupant (98) and directly prevents outward lateral displacement of the side pelvic portion (97) during a side collision event.
    Type: Application
    Filed: November 2, 2004
    Publication date: May 4, 2006
    Applicant: FORD MOTOR COMPANY
    Inventors: David Zhao, Leonard Shaner, James Cheng