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).

  • Patent number: 8804583
    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: Grant
    Filed: July 13, 2012
    Date of Patent: August 12, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Vaneet Aggarwal, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Patent number: 8799377
    Abstract: A method, computer readable medium for performing mobile presence aggregation are disclosed. For example, the method acquires presence information associated with a user, packages the presence information into a message and forwards the message containing the presence information via a non-session initiated protocol based transport protocol to a presences access layer server. In another embodiment, the method receives a message containing presence information in a non-session initiated protocol based transport protocol, identifies the presence information in the message, translates the presence information into a presence information data format and forwards the presence information in the presence information data format to a presence server.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: August 5, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Rittwik Jana, Kevin Donnellan, Serban Vadim Jora, John Murray, Christopher W. Rice, Richard W. Wright
  • Patent number: 8782022
    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: December 9, 2009
    Date of Patent: July 15, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Rittwik Jana, John F. Murray, Christopher W. Rice, Ron Shacham
  • Patent number: 8761054
    Abstract: An access point comprising a first interface for communicating with a plurality of subscriber terminals wirelessly, wherein the access point supports an internet protocol push-to-talk service and supports a protocol for a quality of service enabled wireless local area network and a second interface for communicating with a broadband access network terminal is described.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: June 24, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Albert T. Chow, Robert Raymond Miller, II, John F. Murray, Christopher W. Rice
  • Patent number: 8763109
    Abstract: A roaming client in communication with an enterprise site through a virtual private network (VPN) gateway maintains an address for a virtual network interface upon becoming a resident client at the enterprise site. A physical interface for the resident includes two valid addresses. Seamless data networking is achieved while promoting routing efficiency by reducing the amount of local traffic addressed to and from the virtual address that is unnecessarily routed through VPN gateways.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: June 24, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Thomas J. Killian, Christopher W. Rice
  • Publication number: 20140169233
    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: December 19, 2012
    Publication date: June 19, 2014
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Vaneet AGGARWAL, Rittwik JANA, Christopher W. RICE, Nemmara K. SHANKARANARAYANAN
  • Patent number: 8750169
    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: June 14, 2010
    Date of Patent: June 10, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Albert T. Chow, Robert Raymond Miller, II, John F. Murray, Christopher W Rice
  • Publication number: 20140146715
    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: November 26, 2012
    Publication date: May 29, 2014
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Vaneet AGGARWAL, Rittwik JANA, Christopher W. RICE, Nemmara K. SHANKARANARAYANAN
  • Publication number: 20140137166
    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 17, 2014
    Publication date: May 15, 2014
    Inventors: John F. Murray, Christopher W. Rice, Harry R. Worstell
  • Publication number: 20140078940
    Abstract: A system and method for full-duplex communications provided by modifying the Media Access Control sub-layer of communication node protocols. The modification allows communication nodes to communicate with one another in full-duplex, where each node transmits and receives data simultaneously with other nodes in a single frequency. A timing of the simultaneous data transmissions, acknowledgments, and short-interframe-space waiting periods can be determined based on network-allocation-vector data transmitted in association with request-to-send or clear-to-send signals.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Vaneet Aggarwal, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Patent number: 8660477
    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: March 21, 2012
    Date of Patent: February 25, 2014
    Assignee: AT&T Intellectual Property II, LP.
    Inventors: John F. Murray, Christopher W. Rice, Harry R. Worstell
  • Publication number: 20140016515
    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: July 13, 2012
    Publication date: January 16, 2014
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Rittwik JANA, Vaneet AGGARWAL, Christopher W. RICE, Nemmara K. SHANKARANARAYANAN, Melissa DUARTE, Ashutosh SABHARWAL
  • Publication number: 20140016516
    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: July 13, 2012
    Publication date: January 16, 2014
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Vaneet Aggarwal, Rittwik Jana, Christopher W. Rice, Nemmara K. Shankaranarayanan
  • Publication number: 20130342629
    Abstract: A method that incorporates teachings of the subject disclosure may include, for example, utilizing a system including at least one processor for determining a video modification plan for a received video stream of a video call session according to the at least one party associated with the video call session, modifying, by the system, a plurality of background images of the received video stream according to the video modification plan to generate a plurality of modified background images, and generating, by the system, a modified video stream according to the plurality of modified background images. Other embodiments are disclosed.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 26, 2013
    Applicant: AT&T Intellectual Property I, LP
    Inventors: Stephen C. North, John F. Murray, Christopher W. Rice, Shankar Krishnan
  • Publication number: 20130339453
    Abstract: Methods and devices for providing presence based messaging are disclosed. For example, a method receives a message including a message content, an identifier of a recipient and a presence parameter. The presence parameter may comprise a speed parameter pertaining to a speed of a device associated with the recipient or a mood parameter pertaining to a mood of the recipient. The method then stores the message and delivers the message to the device associated with the recipient when the presence parameter is satisfied.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Inventors: VANEET AGGARWAL, Rittwik Jana, Gerald Michael Karam, John F. Murray, Christopher W. Rice
  • Patent number: 8606236
    Abstract: A secondary Ethernet-like wireless communication system overlapped by a dominant Ethernet-like wireless communication system, and including radio access and communication for activation, association, and authentication of a wireless device in the secondary Ethernet-like wireless communication system. An automated private service activation (APSA) port is used for accepting access and communication requests of a wireless device seeking activation, association and authentication in the secondary Ethernet-like wireless communication system. The APSA port provides an access and communication channel for radiating signals at a level exceeding a signal level of the access and communication channel only within limited spatial constraints. In addition the APSA port provides space for receiving the wireless device for activation and communication in the secondary Ethernet-like wireless communication system.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: December 10, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Albert T. Chow, Richard Henry Erving, Robert Raymond Miller, II, Christopher W Rice, Jesse Eugene Russell, Wenchu Ying
  • Publication number: 20130324068
    Abstract: The present invention is a system for increasing Signal-to-Noise Ratio (SNR) in a wireless communication system comprising a plurality of antennas each antenna providing a signal, a device for selecting a subset of signals provided by the plurality of antennas, a maximum ratio combiner for summing the selected subset of signals provided by the plurality of antennas, and a decision device for measuring the selected subset of signals against a predefined threshold. The device for selecting the subset of signals is coupled to the plurality of antennas. The maximum ratio combiner is coupled to the selected subset of signals and the decision device for measuring the selected subset of signals against a predefined threshold. The decision device is coupled to the selecting device such that one selected signal of the selected subset of signals is replaced by an unused signal provided by the plurality of antennas.
    Type: Application
    Filed: August 9, 2013
    Publication date: December 5, 2013
    Applicant: AT&T Intellectual Property II, LP
    Inventors: Saeed S. Ghassemzadeh, Richard Henry Erving, Robert Raymond Miller, II, Christopher W. Rice
  • Publication number: 20130259032
    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: Application
    Filed: May 24, 2013
    Publication date: October 3, 2013
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Rittwik Jana, John F. Murray, Christopher W. Rice, Ron Shacham
  • Patent number: 8509723
    Abstract: The present invention is a system for increasing Signal-to-Noise Ratio (SNR) in a wireless communication system comprising a plurality of antennas each antenna providing a signal, a device for selecting a subset of signals provided by the plurality of antennas, a maximum ratio combiner for summing the selected subset of signals provided by the plurality of antennas, and a decision device for measuring the selected subset of signals against a predefined threshold. The device for selecting the subset of signals is coupled to the plurality of antennas. The maximum ratio combiner is coupled to the selected subset of signals and the decision device for measuring the selected subset of signals against a predefined threshold. The decision device is coupled to the selecting device such that one selected signal of the selected subset of signals is replaced by an unused signal provided by the plurality of antennas.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: August 13, 2013
    Assignee: AT&T Intellectual Property II, LP
    Inventors: Saeed S. Ghassemzadeh, Richard Henry Erving, Robert Raymond Miller, II, Christopher W. Rice
  • Patent number: 8467306
    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 19, 2008
    Date of Patent: June 18, 2013
    Assignee: AT&T Intellectual Property I, L. P.
    Inventors: Rittwick Jana, John F. Murray, Christopher W. Rice, Ron Shacham