Patents by Inventor Eric Cheung

Eric Cheung 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: 20130010940
    Abstract: A method for providing communication control functionality at a remotely located site using a distributed feature architecture which provides communication features and data records to an Enhanced Network User (ENU). The ENU connects to a Distributed Feature Network (DFN) in order to gain access to communications features contained in the DFN. Based on the type of communication requested, one or more feature boxes are created in order to implement the requested communication.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: AT&T Corp.
    Inventors: Eric Cheung, Mark Jeffery Foladare, Shelley B. Goldman, James Christopher Ramming
  • Publication number: 20120314702
    Abstract: In one embodiment, the present disclosure is a method and apparatus for programming session initiation protocol back-to-back user agents. In one embodiment, a method for programming a telecommunication feature as a session initiation protocol back-to-back user agent includes receiving source code defining the feature, the source code using at least one abstraction that hides session initiation protocol signaling details required by the feature and generating executable code that causes a session initiation protocol server to execute the feature, in accordance with the abstractions.
    Type: Application
    Filed: August 20, 2012
    Publication date: December 13, 2012
    Applicant: AT&T Intellectual Property I, LP.
    Inventors: Pamela Zave, Gregory W. Bond, Eric Cheung, Thomas M. Smith
  • Patent number: 8311196
    Abstract: A system and methodology for managing a mute function muting a connection to a conference call or other communication is disclosed. The system is implemented when the mute function is activated on a line connected to a conference call through a telecommunications network. The method includes receiving a sound, determining whether the sound meets predetermined criteria and if the sound meets predetermined criteria then performing a mute status operation.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: November 13, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Karrie Hanson, Eric Cheung
  • Publication number: 20120281199
    Abstract: A system for providing a sliced optical pulse is disclosed. The system can comprise a master oscillator (MO) configured to generate an optical pulse at a first spectral bandwidth. The system can also comprise a semiconductor optical amplifier (SOA) configured to slice the optical pulse to generate a sliced optical pulse that has a second spectral bandwidth. The second spectral bandwidth can be smaller than the first spectral bandwidth.
    Type: Application
    Filed: May 6, 2011
    Publication date: November 8, 2012
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Peter A. Thielen, Eric Cheung, Timothy McComb
  • Patent number: 8295208
    Abstract: A method for providing communication control functionality at a remotely located site using a distributed feature architecture which provides communication features and data records to an Enhanced Network User (ENU). The ENU connects to a Distributed Feature Network (DFN) in order to gain access to communications features contained in the DFN. Based on the type of communication requested, one or more feature boxes are created in order to implement the requested communication.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: October 23, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Eric Cheung, Mark Jeffrey Foladare, Shelley B. Goldman, James Christopher Ramming
  • Patent number: 8250216
    Abstract: In one embodiment, the present disclosure is a method and apparatus for programming session initiation protocol back-to-back user agents. In one embodiment, a method for programming a telecommunication feature as a session initiation protocol back-to-back user agent includes receiving source code defining the feature, the source code using at least one abstraction that hides session initiation protocol signaling details required by the feature and generating executable code that causes a session initiation protocol server to execute the feature, in accordance with the abstractions.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: August 21, 2012
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Pamela Zave, Gregory W. Bond, Eric Cheung, Thomas M. Smith
  • Patent number: 8228021
    Abstract: A converter circuit includes a phase circuit having a switch module, a first winding, a first diode, a second winding, and a second diode. The second winding is inductively coupled to the first winding. A multi-phase motor including the converter circuit, and a related method of controlling such a motor, are also provided.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: July 24, 2012
    Assignee: Automotive Parts and Accessory Systems R & D Centre Limited
    Inventors: Ka Wai Eric Cheung, Xiangdang Xue
  • Patent number: 8199745
    Abstract: In one embodiment, the present invention is a method and apparatus for generalized third party call control in session initiation protocol networks. In one embodiment, a method for controlling a media negotiation with one or more endpoints in a network includes determining, for each endpoint, a current state of a corresponding port on a third-party controller and transitioning the corresponding port to a new state in accordance with a finite state machine that tracks the state of the media negotiation.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: June 12, 2012
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Eric Cheung, Pamela Zave
  • Publication number: 20120011007
    Abstract: Systems and methods are disclosed for mobile payment using dual-tone multi-frequency (DTMF) signals. A mobile device equipped with at least a speaker and an input is used to connect to a server on the mobile network. Upon authentication of a user of the mobile device, the server generates the payment key, translates the key to DTMF signals, and plays the DTMF signals over the speaker of the mobile device. The user holds the mobile device speaker close to a microphone of a DTMF scanner at a POS terminal. The DTMF scanner includes logic that extracts the payment key from the DTMF signals, and the POS terminal uses the payment key to bill the user. The POS terminal transmits the bill with the payment key to the server on the network. The server ensures that the key is active, and debits an account for the user based on the amount presented in the bill. The key is de-activated after a specified time period or one use, whichever occurs first.
    Type: Application
    Filed: July 7, 2010
    Publication date: January 12, 2012
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Charles Douglas Blewett, Megan Blewett, Juan A. Garay, Vincent C. Grosso, Robert C. Haarde, Thomas Killian, Simon Urbanek, Eric Cheung
  • Publication number: 20110125908
    Abstract: In one embodiment, the present disclosure is a method and apparatus for programming session initiation protocol back-to-back user agents. In one embodiment, a method for programming a telecommunication feature as a session initiation protocol back-to-back user agent includes receiving source code defining the feature, the source code using at least one abstraction that hides session initiation protocol signaling details required by the feature and generating executable code that causes a session initiation protocol server to execute the feature, in accordance with the abstractions.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventors: PAMELA ZAVE, GREGORY W. BOND, ERIC CHEUNG, THOMAS M. SMITH
  • Patent number: 7949010
    Abstract: An implementation of a voice-over-Internet protocol (VoIP) system for accomplishing two-way, three-way and conference calling between two or more parties is disclosed, in which new call features are readily adapted. The VoIP system is implemented in a Session Initiation Protocol (SIP) framework in which aspects of Distributed Feature Composition (DFC) architecture are modified and applied to overcome known limitations in the adaptability of existing VoIP frameworks.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: May 24, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Gregory W. Bond, Eric Cheung, Kermit Hal Purdy, Xiaotao Wu, Pamela Zave
  • Publication number: 20110082008
    Abstract: Methods, systems, and computer program products for implementing remote participation in events are provided. A method includes providing a view of an instance of an application on endpoint systems in response to a common option selected by the endpoint systems of the application. The method also includes receiving performance data from the endpoint systems, and populating the view with virtual representations of users of each of the endpoint systems. The populating includes positioning the virtual representations at various locations in the view. The various locations are indicative of the performance data.
    Type: Application
    Filed: October 2, 2009
    Publication date: April 7, 2011
    Applicant: AT&T Intellectual Property I, L.P. f/k/a BellSouth Intellectual Property Corporation
    Inventors: Eric Cheung, Gerald Karam
  • Publication number: 20110072087
    Abstract: A communication method for transferring communication data between a plurality of participants is provided. The participants include at least one active participant that generates the communication data and at least one passive participant that does not generate the communication data. The communication method includes receiving, by a primary server, the communication data generated by the active participant and transmitting, by the primary server, the communication data received from the active participant to at least one secondary server that does not receive any communication data from any of the active participant and the at least one passive participant. The secondary server receives the communication data transmitted from the primary server and transmits the received communication data to the passive participant.
    Type: Application
    Filed: September 24, 2009
    Publication date: March 24, 2011
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Eric CHEUNG, Gerald Michael KARAM
  • Publication number: 20110069642
    Abstract: In one embodiment, the present invention is a method and apparatus for dynamically allocating resources for large-scale multimedia conferences. In one embodiment, a method for allocating resources to a multimedia conference includes receiving a request from a potential participant to join the multimedia conference and dynamically assigning the request to one of a plurality of media servers serving the multimedia conference.
    Type: Application
    Filed: September 23, 2009
    Publication date: March 24, 2011
    Inventors: GERALD KARAM, Eric Cheung
  • Patent number: 7848507
    Abstract: A method and apparatus for controlling end-to-end media on packet networks such as Voice over Internet Protocol (VoIP) and Service over Internet Protocol (SoIP) networks are disclosed. The present method provides an algorithm to be run by channel terminations such that the media channel is controlled by compositional actions. For example, the servers that terminate the media channel are able to respond on behalf of an endpoint in order to effect the appropriate compositional action. The present method also enables each direction of a bi-directional media channel to be controlled independent of the media channel in the opposite direction.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: December 7, 2010
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Eric Cheung, Pamela Zave
  • Publication number: 20100287236
    Abstract: A system and method for sharing annotations corresponding to media content among a plurality of members of a group over a communications network. The system generally includes at least one server coupled to the communications network and configured for receiving at least one annotation from a first group member corresponding to media content from the communications network; adding the at least one annotation to a database; accessing a list of members of the group, each member of the group having a user profile stored in memory; and automatically sending a notification to at least a second member of the group upon receipt of each annotation. The annotation comprises annotation content and a temporal identifier that identifies a segment of the media content to which the annotation corresponds, and the at least one server is configured for sending the annotation to at least the second group member and optionally a media stream including at least the segment of the media content with the annotation.
    Type: Application
    Filed: April 16, 2009
    Publication date: November 11, 2010
    Inventors: Brian Amento, Alicia Abella, Eric Cheung, Kermit Hal Purdy, Larry Stead
  • Publication number: 20100235491
    Abstract: A system that incorporates teachings of the present disclosure may include, for example, a recipient client device having a controller operable to receive and store a media object from an originating device, track locations where the media object has been since the media object has been stored in the recipient client device, track identifiers associated with a device or a user that has accessed the media object at the locations, and track and store annotations about the media object by the device or the user that accessed the media object. Other embodiments are disclosed.
    Type: Application
    Filed: March 12, 2009
    Publication date: September 16, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, LP.
    Inventors: KERMIT HAL PURDY, BRIAN AMENTO, LARRY STEAD, ALICIA ABELLA, ERIC CHEUNG, MUKESH NATHAN, LUIS ZAMAN, RAMON CACERES
  • Publication number: 20100165979
    Abstract: In one embodiment, the present invention is a method and apparatus for generalized third party call control in session initiation protocol networks. In one embodiment, a method for controlling a media negotiation with one or more endpoints in a network includes determining, for each endpoint, a current state of a corresponding port on a third-party controller and transitioning the corresponding port to a new state in accordance with a finite state machine that tracks the state of the media negotiation.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 1, 2010
    Inventors: ERIC CHEUNG, Pamela Zave
  • Publication number: 20100159946
    Abstract: Telephony features for a phone are configured based on the location of a user of the phone. A system receives location data corresponding to a location of the phone. An operational mode is selected from stored operational modes based on the location data. The operational mode of the user phone is set to the selected mode. In one mode, a reply message is provided to the caller that is associated with the location of the phone.
    Type: Application
    Filed: December 23, 2008
    Publication date: June 24, 2010
    Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Eric CHEUNG, Karrie HANSON
  • Publication number: 20100098228
    Abstract: A system for monitoring quality of calls in a network. A server receives information concerning calls which begin or end in a network and at the same time receives measurements of a quality parameter such as bandwidth. This measurement data is provided by a probe, so that the server is able to correlate calls which are placed through the network with the quality of service in the network at that time. When the quality falls below a desired level, the server notifies the customer or the network operator so that appropriate action may be taken.
    Type: Application
    Filed: December 26, 2009
    Publication date: April 22, 2010
    Inventors: ERIC CHEUNG, MARK FOLADARE, Shelley Goldman, Kermit H. Purdy, David H. Shur