Patents by Inventor Christopher W. Rice

Christopher W. Rice 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: 20170054522
    Abstract: A system that incorporates the subject disclosure may include, for example, determining an interference based on a channel gain for each signal of a group of signals received at a receiver from a group of transmitters. A determination is made as to whether the interference satisfies a threshold range of an analog-to-digital converter of the receiver for each of the group of transmitters. An analog time domain cancellation is performed responsive to a determination that the interference does not satisfy the threshold range, and a digital time domain cancellation is performed responsive to a determination that the interference satisfies the threshold range. Other embodiments are disclosed.
    Type: Application
    Filed: August 17, 2016
    Publication date: February 23, 2017
    Inventors: VANEET AGGARWAL, DINESH BHARADIA, RITTWIK JANA, CHRISTOPHER W. RICE, NEMMARA K. SHANKARANARAYANAN
  • Patent number: 9553958
    Abstract: A system, method, and computer-readable storage media for reducing monopolization of a frequency channel during full-duplex communications. The MAC layer of governing communications can be modified to reduce likelihood of monopolization by (1) in networks which are exclusively filled with full-duplex devices, configuring non-communicating devices to ignore data collisions of communicating devices, requiring the communicating devices to wait for an standard backoff time after the data transmission is complete; and/or (2) in mixed half-duplex/full-duplex networks, requiring a half-duplex nodes and/or a full-duplex node to wait an extended duration after the data transmission is complete, while the non-communicating devices do not wait an extended duration.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 24, 2017
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Vaneet Aggarwal, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Patent number: 9549003
    Abstract: An Internet protocol Multimedia Subsystem (IMS) gateway application server includes an originating application server module adapted to invoke call control services in response to requests initiated by a voice over Internet Protocol (IP) (VoIP) client associated with a communication device such as an IP telephone. Disclosed gateway application servers include a proxy server module adapted to notify the communication client of session control messages intended for the communication device.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: January 17, 2017
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Rittwik Jana, John F. Murray, Christopher W. Rice, Ron Shacham
  • Patent number: 9537645
    Abstract: A system and method for establishing windows that govern the exchange of acknowledgements in a full-duplex communication. The window is established for two nodes which transmit asymmetric frame sizes in full-duplex mode. The window is related to the size of the asymmetric frames. Frames are exchanged in full-duplex between the two nodes, and the window size is defined as enabling the nodes to send data until the number of unacknowledged frames at the nodes is less than or equal to the window size, at which point acknowledgments are exchanged simultaneously. In sending the acknowledgment, both nodes can send acknowledgments simultaneously in full-duplex in the same frequency bin.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: January 3, 2017
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Vaneet Aggarwal, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Patent number: 9450785
    Abstract: A system that incorporates the subject disclosure may include, for example, determining an interference based on a channel gain for each signal of a group of signals received at a receiver from a group of transmitters. A determination is made as to whether the interference satisfies a threshold range of an analog-to-digital converter of the receiver for each of the group of transmitters. An analog time domain cancellation is performed responsive to a determination that the interference does not satisfy the threshold range, and a digital time domain cancellation is performed responsive to a determination that the interference satisfies the threshold range. Other embodiments are disclosed.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: September 20, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Vaneet Aggarwal, Dinesh Bharadia, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Publication number: 20160197714
    Abstract: A system and method for establishing windows that govern the exchange of acknowledgements in a full-duplex communication. The window is established for two nodes which transmit asymmetric frame sizes in full-duplex mode. The window is related to the size of the asymmetric frames. Frames are exchanged in full-duplex between the two nodes, and the window size is defined as enabling the nodes to send data until the number of unacknowledged frames at the nodes is less than or equal to the window size, at which point acknowledgments are exchanged simultaneously. In sending the acknowledgment, both nodes can send acknowledgments simultaneously in full-duplex in the same frequency bin.
    Type: Application
    Filed: March 16, 2016
    Publication date: July 7, 2016
    Inventors: Vaneet Aggarwal, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Patent number: 9384230
    Abstract: A method, computer readable medium and apparatus for automatically updating social network profiles are disclosed. For example, the method receives one or more inputs from a subscriber, processes the one or more inputs in accordance with a policy defined by the subscriber to produce an update about the subscriber and publishes the update about the subscriber on one or more social network profiles associated with the subscriber.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: July 5, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Rittwik Jana, John F. Murray, Christopher W. Rice, Ron Shacham
  • Patent number: 9374804
    Abstract: A broadband access network terminal comprising a hardware integrated circuit is disclosed. The hardware integrated circuit is for communicating with a plurality of access points. The plurality of access points is for communicating with a plurality of subscriber terminals via a wireless local area network. The hardware integrated circuit is further for communicating with a broadband access network. In addition, the broadband access network terminal comprises an Internet Protocol multicast enabled broadband access network terminal, The broadband access network terminal further supports an Internet Protocol push-to-talk service for the plurality of subscriber terminals via the wireless local area network and supports media stream mixing and multicasting of information associated with the Internet Protocol push-to-talk service.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: June 21, 2016
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Albert T. Chow, Robert Raymond Miller, II, John F. Murray, Christopher W. Rice
  • Publication number: 20160173661
    Abstract: A system, method, and computer-readable storage media for reducing monopolization of a frequency channel during full-duplex communications. The MAC layer of governing communications can be modified to reduce likelihood of monopolization by (1) in networks which are exclusively filled with full-duplex devices, configuring non-communicating devices to ignore data collisions of communicating devices, requiring the communicating devices to wait for an standard backoff time after the data transmission is complete; and/or (2) in mixed half-duplex/full-duplex networks, requiring a half-duplex nodes and/or a full-duplex node to wait an extended duration after the data transmission is complete, while the non-communicating devices do not wait an extended duration.
    Type: Application
    Filed: February 22, 2016
    Publication date: June 16, 2016
    Inventors: Vaneet AGGARWAL, Rittwik JANA, Christopher W. RICE, Nemmara K. SHANKARANARAYANAN
  • Publication number: 20160119653
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, includes a broadband signal access point, which may be located internally or externally to the premises, in combination with the existing cabling is used with radiation device(s) to provide distribution of services, including broadband services, within the premises. Additional embodiments are disclosed.
    Type: Application
    Filed: January 7, 2016
    Publication date: April 28, 2016
    Inventors: John F. Murray, Christopher W. Rice, Harry R. Worstell
  • Patent number: 9319207
    Abstract: A system and method for establishing windows that govern the exchange of acknowledgements in a full-duplex communication. The window is established for two nodes which transmit asymmetric frame sizes in full-duplex mode. The window is related to the size of the asymmetric frames. Frames are exchanged in full-duplex between the two nodes, and the window size is defined as enabling the nodes to send data until the number of unacknowledged frames at the nodes is less than or equal to the window size, at which point acknowledgments are exchanged simultaneously. In sending the acknowledgment, both nodes can send acknowledgments simultaneously in full-duplex in the same frequency bin.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: April 19, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Vaneet Aggarwal, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Patent number: 9270473
    Abstract: A method and apparatus for transferring a user data profile from a user's home terminal to a visiting terminal is disclosed. User or network configuration settings are transferred from a home telephony adapter to a visiting telephony adapter. In accordance with one embodiment, a computer readable medium, such as a flash drive is inserted into the home telephony adapter and, either with or without authentication, user or network configuration settings are transferred from the home telephony adapter to the medium. In another embodiment, the medium is then inserted into the visiting telephony adapter.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: February 23, 2016
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Gerald Ezrol, Brian Freeman, Samuel Glazer, John Murray, Christopher W. Rice
  • Patent number: 9271307
    Abstract: A system, method, and computer-readable storage media for reducing monopolization of a frequency channel during full-duplex communications. The MAC layer of governing communications can be modified to reduce likelihood of monopolization by (1) in networks which are exclusively filled with full-duplex devices, configuring non-communicating devices to ignore data collisions of communicating devices, requiring the communicating devices to wait for an standard backoff time after the data transmission is complete; and/or (2) in mixed half-duplex/full-duplex networks, requiring a half-duplex nodes and/or a full-duplex node to wait an extended duration after the data transmission is complete, while the non-communicating devices do not wait an extended duration.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: February 23, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Vaneet Aggarwal, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Publication number: 20160050086
    Abstract: A system that incorporates the subject disclosure may include, for example, determining an interference based on a channel gain for each signal of a group of signals received at a receiver from a group of transmitters. A determination is made as to whether the interference satisfies a threshold range of an analog-to-digital converter of the receiver for each of the group of transmitters. An analog time domain cancellation is performed responsive to a determination that the interference does not satisfy the threshold range, and a digital time domain cancellation is performed responsive to a determination that the interference satisfies the threshold range. Other embodiments are disclosed.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 18, 2016
    Inventors: Vaneet Aggarwal, Dinesh Bharadia, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Patent number: 9264741
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, includes a broadband signal access point, which may be located internally or externally to the premises, in combination with the existing cabling is used with radiation device(s) to provide distribution of services, including broadband services, within the premises. Additional embodiments are disclosed.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: February 16, 2016
    Assignee: AT&T INTELLECTUAL PROPERTY II, LP
    Inventors: John F Murray, Christopher W. Rice, Harry R. Worstell
  • Publication number: 20160044348
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a server operably coupleable to an internet protocol multimedia subsystem network and an interactive television system, where the server receives a session transfer request from a first communication device, where the session transfer request includes identification information associated with a second communication device, and where the server transmits a message to the second communication device and transmits a media adjustment message to a media resource server of the internet protocol multimedia subsystem network. The media content is adjusted and transmitted to the second communication device responsive to the media adjustment message, where the adjusted media content is generated by the media resource server based on the identification information associated with the second communication device. Other embodiments are disclosed.
    Type: Application
    Filed: October 26, 2015
    Publication date: February 11, 2016
    Inventors: Rittwik Jana, John F. Murray, Christopher W. Rice
  • Publication number: 20160044712
    Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for a modified MAC protocol which can facilitate communications with both full-duplex and half-duplex devices. A system configured according to the disclosed method can enable communications between an Access Point (AP) and a client in either full duplex or half duplex. The system can similarly enable peer-to-peer communications in both full duplex and half duplex communication modes.
    Type: Application
    Filed: October 19, 2015
    Publication date: February 11, 2016
    Inventors: Vaneet AGGARWAL, Rittwik JANA, Christopher W. RICE, Nemmara K. SHANKARANARAYANAN
  • Publication number: 20160036582
    Abstract: Disclosed herein are systems, methods, and computer-readable storage media for enabling improved cancellation of self-interference in full-duplex communications, or the transmitting and receiving of communications in a single frequency band without requiring time, frequency, or code divisions. The system estimates the signal strength and phase of a self-interference signal, generates a cancellation signal based on this estimate, then uses the cancellation signal to suppress the self-interference before sampling received analog signal. After applying the cancellation signal, the system samples and digitizes the remaining analog signal. The digitized signal is then subjected to additional digital cancellation, allowing for extraction of the desired signal.
    Type: Application
    Filed: October 13, 2015
    Publication date: February 4, 2016
    Inventors: Rittwik JANA, Vaneet AGGARWAL, Christopher W. RICE, Nemmara K. Shankaranarayanan, Melissa DUARTE, Ashutosh SABHARWAL
  • Patent number: 9204177
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a server operably coupleable to an internet protocol multimedia subsystem network and an interactive television system, where the server receives a session transfer request from a first communication device, where the session transfer request includes identification information associated with a second communication device, and where the server transmits a message to the second communication device and transmits a media adjustment message to a media resource server of the internet protocol multimedia subsystem network. The media content is adjusted and transmitted to the second communication device responsive to the media adjustment message, where the adjusted media content is generated by the media resource server based on the identification information associated with the second communication device. Other embodiments are disclosed.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: December 1, 2015
    Assignee: AT&T INTELLECTUAL PROPERTY I, LP
    Inventors: Rittwik Jana, John F. Murray, Christopher W. Rice
  • Patent number: 9203655
    Abstract: A system that incorporates the subject disclosure may include, for example, determining channel gains for a group of transmitters based on transmitted training symbols; and performing analog time domain cancellation and digital time domain cancellation responsive to a determination that a total interference does not satisfy a threshold range of the analog-to-digital converter, where the total interference is determined based on the channel gains. Other embodiments are disclosed.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: December 1, 2015
    Assignee: AT&T Intellectual Property I, LP
    Inventors: Vaneet Aggarwal, Dinesh Bharadia, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan