Patents by Inventor Weidong Mao

Weidong Mao 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: 20140157324
    Abstract: Methods and systems are presented for managing allocation of names in a limited namespace for a pool of content objects or items. For each content object in the pool, one or more records are maintained that include mappings of different names from different name spaces.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: COMCAST CABLE COMMUNICATIONS, LLC
    Inventors: Weidong Mao, Mark Swan, Sree Kotay, Mark Vickers
  • Patent number: 8681680
    Abstract: A multicast content delivery system can use both multicast and unicast streams to efficiently use available bandwidth to deliver content. Available multicast content can be identified to gateways serving consumption devices, and the gateways can receive requests for unicast content deliver, but honor the requests with multicast group sessions.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: March 25, 2014
    Assignee: Comcast Cable Communications, LLC
    Inventors: Weidong Mao, Jorge Salinger
  • Patent number: 8681315
    Abstract: A two-beam interference lithography system offers large-area nanopatterning with tunability of pattern periodicities. The tunable feature is achieved by placing two rotatable mirrors in the two expanded beam paths which can conveniently be regulated for the designed pattern periodicities. While the effective interference pattern coverage is mainly determined by the optical coherence length and mirror size, the minimum pattern coverage area is as large as the effective coherence length of the laser and the selected mirror size over a wide range of periodicities.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: March 25, 2014
    Assignee: The Trustees of the Stevens Institute of Technology
    Inventors: Weidong Mao, Ishan Wathuthanthri, Chang-Hwan Choi
  • Publication number: 20140013342
    Abstract: A content delivery server may allow users to redirect browsed content from one system to another. A user may install or activate a plug-in to a browser, such as an Internet browser, and the plug-in may be linked to the user's account on another service. As the user browses content from the browser, the user may select a command to cause the browsed content to be delivered to the other service, ingested by the other service, and made available to the user from the other service.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 9, 2014
    Applicant: COMCAST CABLE COMMUNICATIONS, LLC
    Inventors: Mark SWAN, Weidong MAO, Sree KOTAY, Mark VICKERS, Mohsin ROOWALLA, Chris KENNEDY
  • Publication number: 20130304854
    Abstract: Tokens and policy descriptors are used for dynamic on demand session management in a distributed and scalable architecture for on demand sessions and resource management. The architecture includes an on demand client, a purchase server, and a session manager. A purchase token is generated at the purchase server and assigned to the on demand client. The purchase token represents at least one requested asset. In response to an on demand session set-up request corresponding to the purchase token from the on demand client to the session manager, the purchase token is expanded to generate at least one dynamic policy management descriptor for the on demand session. This provides token-based purchase authorization and policy management for on demand services.
    Type: Application
    Filed: July 15, 2013
    Publication date: November 14, 2013
    Inventors: Weidong Mao, Neville A. Black, Charles L. Compton
  • Publication number: 20130239145
    Abstract: An apparatus, method, system and computer-readable medium are provided for generating one or more segments associated with content. The segments may include fragments that may correspond to portions of the content. The segments and/or the fragments may be included in a playlist, and may be based at least in part on a user selection.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 12, 2013
    Applicant: COMCAST CABLE COMMUNICATIONS, LLC
    Inventors: Allen Broome, Joseph Kiok, John Leddy, Brian Field, Eric Rosenfeld, Weidong Mao, Sree Kotay
  • Patent number: 8504715
    Abstract: Tokens and policy descriptors are used for dynamic on demand session management in a distributed and scalable architecture for on demand sessions and resource management. The architecture includes an on demand client, a purchase server, and a session manager. A purchase token is generated at the purchase server and assigned to the on demand client. The purchase token represents at least one requested asset. In response to an on demand session set-up request corresponding to the purchase token from the on demand client to the session manager, the purchase token is expanded to generate at least one dynamic policy management descriptor for the on demand session. This provides token-based purchase authorization and policy management for on demand services.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: August 6, 2013
    Assignee: Comcast Cable Holdings, LLC
    Inventors: Weidong Mao, Neville A. Black, Charles L. Compton
  • Publication number: 20130144969
    Abstract: Aspects of the disclosure relate to control of consumption of content in an appliance. The content can include linear programming and non-linear assets. Such control can permit (i) changing a channel in the appliance (e.g., a CPE without upstream functionality) and thus selecting a linear-programming asset, a non-linear asset, and so forth, and (ii) controlling consumption of such assets. In one aspect, a device with upstream network connectivity can control the consumption of media in the appliance. The device can leverage data management and control functionality of a service provider network to acquire information related to assets available for consumption and to transmit asset requests to the service provider network, which can transmit content and signaling to the appliance in accordance at least in part with the asset request, thus controlling media consumption in the appliance.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 6, 2013
    Applicant: COMCAST CABLE COMMUNICATIONS, LLC
    Inventors: Daniel Holden, Michael D. McMahon, Allen Broome, Weidong Mao, Ross Gilson
  • Patent number: 8443415
    Abstract: A method and system of supporting transport and playback of signals, such as audio, video, and data signals. A reference model configured to support transport of signals according to a baseline, extended mode (1), and extended mode (2) architecture, and a subscriber video device (SVD) configured to support playback of the signals transported according to any of the architectures.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: May 14, 2013
    Assignee: NGNA, LLC
    Inventors: John G Hildebrand, Francisco Gonzalez, Mark Francisco, Weidong Mao, Saifur Rahman
  • Publication number: 20130017498
    Abstract: A two-beam interference lithography system offers large-area nanopatterning with tunability of pattern periodicities. The tunable feature is achieved by placing two rotatable mirrors in the two expanded beam paths which can conveniently be regulated for the designed pattern periodicities. While the effective interference pattern coverage is mainly determined by the optical coherence length and mirror size, the minimum pattern coverage area is as large as the effective coherence length of the laser and the selected mirror size over a wide range of periodicities.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 17, 2013
    Inventors: Weidong Mao, Ishan Wathuthanthri, Chang-Hwan Choi
  • Publication number: 20120324048
    Abstract: Tokens and policy descriptors are used for dynamic on demand session management in a distributed and scalable architecture for on demand sessions and resource management. The architecture includes an on demand client, a purchase server, and a session manager. A purchase token is generated at the purchase server and assigned to the on demand client. The purchase token represents at least one requested asset. In response to an on demand session set-up request corresponding to the purchase token from the on demand client to the session manager, the purchase token is expanded to generate at least one dynamic policy management descriptor for the on demand session. This provides token-based purchase authorization and policy management for on demand services.
    Type: Application
    Filed: August 23, 2012
    Publication date: December 20, 2012
    Applicant: COMCAST CABLE HOLDINGS, LLC
    Inventors: Weidong Mao, Neville A. Black, Charles L. Compton
  • Publication number: 20120321278
    Abstract: A network digital video recording (nDVR) system may take into account the capabilities of a requesting user's local DVR when managing network recordings. The user's local DVR may include a temporary buffer that is normally used to record what the DVR is tuned to, and may be used for local trickplay functionality such as pausing live television. The nDVR features described herein may track the usage of the user's temporary DVR buffer, and use that in determining what to stream in response to a user's playback request. The nDVR system can also determine if the user's local DVR has an unused tuner at a time of a program recording, and can instruct the user's local DVR to also tune to the program.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 20, 2012
    Applicant: COMCAST CABLE COMMUNICATIONS, LLC
    Inventors: Todd Walker, Bruce Bradley, Thomas Day, Robert Gaydos, John Leddy, Weidong Mao
  • Patent number: 8281024
    Abstract: Tokens and policy descriptors are used for dynamic on demand session management in a distributed and scalable architecture for on demand sessions and resource management. The architecture includes an on demand client, a purchase server, and a session manager. A purchase token is generated at the purchase server and assigned to the on demand client. The purchase token represents at least one requested asset. In response to an on demand session set-up request corresponding to the purchase token from the on demand client to the session manager, the purchase token is expanded to generate at least one dynamic policy management descriptor for the on demand session. This provides token-based purchase authorization and policy management for on demand services.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: October 2, 2012
    Assignee: Comcast Cable Holdings, LLC
    Inventors: Weidong Mao, Neville A. Black, Charles L. Compton
  • Publication number: 20120222063
    Abstract: To be accessed on different media players, requested content must be delivered in a format that is supported by the requesting device. A dynamic content packager for encrypting and packaging requested content for different requesting devices at the time of consumption is disclosed.
    Type: Application
    Filed: September 15, 2010
    Publication date: August 30, 2012
    Applicant: Comcast Cable Communications, LLC
    Inventors: Weidong Mao, Sree Kotay
  • Publication number: 20120210382
    Abstract: An archive model can be used for managing networked storage of recorded content, such as network DVR (digital video recorder) content. Content may be initially recorded to an active storage device, with individual duplicate copies recorded for each requesting user, and subsequently archived to an archive storage device. For playback, the content can be reconstituted into the active storage device prior to delivery to the requesting user. Content can be predictively reconstituted in anticipation of user needs, and the reconstitution capacity of the system can be dynamically reallocated for load balancing.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 16, 2012
    Applicant: COMCAST CABLE COMMUNICATIONS, LLC
    Inventors: Todd Walker, Bruce Bradley, Thomas Day, Robert Gaydos, John Leddy, Weidong Mao
  • Patent number: D672393
    Type: Grant
    Filed: June 5, 2011
    Date of Patent: December 11, 2012
    Assignee: Hangzhou Prostar Enterprises Ltd.
    Inventor: Weidong Mao
  • Patent number: D672810
    Type: Grant
    Filed: June 5, 2011
    Date of Patent: December 18, 2012
    Assignee: Hangzhou Prostar Enterprises Ltd.
    Inventor: Weidong Mao
  • Patent number: D688305
    Type: Grant
    Filed: November 6, 2011
    Date of Patent: August 20, 2013
    Assignee: Hangzhou Prostar Enterprises Ltd.
    Inventor: Weidong Mao
  • Patent number: D694328
    Type: Grant
    Filed: November 6, 2011
    Date of Patent: November 26, 2013
    Assignee: Hangzhou Prostar Enterprises Ltd.
    Inventor: Weidong Mao
  • Patent number: D690359
    Type: Grant
    Filed: November 6, 2011
    Date of Patent: September 24, 2013
    Assignee: Hangzhou Prostar Enterprises Ltd.
    Inventor: Weidong Mao