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: 20100091970
    Abstract: A method and apparatus for providing call parking for a communication network are disclosed. The method first determines a disconnection of a first party's endpoint device, wherein said first party is either a calling party or a called party. The method then determines if said disconnection of said first party's endpoint device is due to hanging up. If said disconnection is not due to hanging up, the method parks a second party wherein said second party is either a calling party or a called party communicating with said first party prior to said disconnection. The method determines if said first party's device is back online and reconnects said first party and second party if said first party's device is back online.
    Type: Application
    Filed: October 9, 2008
    Publication date: April 15, 2010
    Inventors: ERIC CHEUNG, Kermit Hal Purdy
  • Publication number: 20100067680
    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: Application
    Filed: September 15, 2008
    Publication date: March 18, 2010
    Inventors: Karrie Hanson, Eric Cheung
  • Patent number: 7664122
    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: Grant
    Filed: December 30, 2003
    Date of Patent: February 16, 2010
    Assignee: AT&T Corp.
    Inventors: Eric Cheung, Mark Foladare, Shelley Goldman, Kermit H. Purdy, David H. Shur
  • Publication number: 20090274281
    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: July 13, 2009
    Publication date: November 5, 2009
    Inventors: Eric Cheung, Mark Jeffrey Foladare, Shelley B. Goldman, James Christopher Ramming
  • Patent number: 7567524
    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: June 7, 2005
    Date of Patent: July 28, 2009
    Assignee: AT&T Corp.
    Inventors: Eric Cheung, Mark Jeffrey Foladare, Shelley B. Goldman, James Christopher Ramming
  • Publication number: 20090157904
    Abstract: A method and apparatus for transforming message events between applications running on a computing device into a form that appears as network events between multiple virtual network access devices. These “network events” may then be processed by known network software protocol analyzers.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 18, 2009
    Inventors: Thomas M. Smith, Gregory W. Bond, Eric Cheung
  • Publication number: 20080313534
    Abstract: A system and method for translating received input from a sender to recipient in an instant messaging dialog is disclosed. The method comprises receiving instant messaging input from a sender for recipient, wherein the instant messaging input comprises at least one subculture specific term. A category is identified the defines a difference between the sender and the recipient and the received instant messaging input is modified from the sender by generating an output associated with the least one subculture specific term and based on the identified category. Multiple recipients in a chat session may also each receive a translated or annotated message according to characteristics of each individual recipient.
    Type: Application
    Filed: August 19, 2008
    Publication date: December 18, 2008
    Applicant: AT&T Corp.
    Inventors: Eric Cheung, Kermit Hal Purdy
  • Patent number: 7451188
    Abstract: A system and method for translating received input from a sender to recipient in an instant messaging dialog is disclosed. The method comprises receiving instant messaging input from a sender for recipient, wherein the instant messaging input comprises at least one subculture specific term. A category is identified the defines a difference between the sender and the recipient and the received instant messaging input is modified from the sender by generating an output associated with the least one subculture specific term and based on the identified category. Multiple recipients in a chat session may also each receive a translated or annotated message according to characteristics of each individual recipient.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: November 11, 2008
    Assignee: AT&T Corp
    Inventors: Eric Cheung, Kermin Hal Purdy
  • Publication number: 20070268930
    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: Application
    Filed: July 27, 2007
    Publication date: November 22, 2007
    Inventors: Gregory Bond, Eric Cheung, Kermit Purdy, Xiaotao Wu, Pamela Zave
  • Patent number: 7251254
    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: September 3, 2003
    Date of Patent: July 31, 2007
    Assignee: AT&T Corp.
    Inventors: Gregory W. Bond, Eric Cheung, Kermit Hal Purdy, Xiaotao Wu, Pamela Zave
  • Publication number: 20070057074
    Abstract: A process (700) for determining one or more parameters for data encoded in a modulated grid (e.g., 200) of dots (e.g., 202). The process (700) determines one or more vectors from at least one dot (202) of the grid (200) to a closest other dot. The dots are modulated about a virtual grid (e.g., 201). The process (200) using the vectors to remove the modulation to determine the virtual grid. The process (700) then determines the orientation of the grid (200) using the determined vectors.
    Type: Application
    Filed: August 18, 2006
    Publication date: March 15, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Eric Cheung, Stephen Farrar
  • Publication number: 20070058558
    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: Application
    Filed: December 30, 2005
    Publication date: March 15, 2007
    Inventors: Eric Cheung, Pamela Zave
  • Patent number: 7164762
    Abstract: The present invention provides a system and method for managing calls for a subscriber, including accessing a calling plan while the subscriber is in an existing active call with at least one other party. The call is placed or received by the subscriber at a first device. At least one service feature of the calling plan is invoked during the active call. This service feature includes an add callers feature for adding at least one additional party to the existing active call between the subscriber and the other party. The service feature additionally includes a transfer devices feature for transferring the existing active call to at least one additional device of the subscriber and hanging up on the first device by the subscriber to confirm the transfer of the call to the additional device.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: January 16, 2007
    Assignee: AT&T Corp.
    Inventors: Karrie J. Hanson, Gerald M. Karam, Eric Cheung, Healfdene H. Goguen, Kermit Hal Purdy
  • Publication number: 20060167992
    Abstract: A system and method for translating received input from a sender to recipient in an instant messaging dialog is disclosed. The method comprises receiving instant messaging input from a sender for recipient, wherein the instant messaging input comprises at least one subculture specific term. A category is identified the defines a difference between the sender and the recipient and the received instant messaging input is modified from the sender by generating an output associated with the least one subculture specific term and based on the identified category. Multiple recipients in a chat session may also each receive a translated or annotated message according to characteristics of each individual recipient.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 27, 2006
    Applicant: AT&T Corp.
    Inventors: Eric Cheung, Kermit Purdy
  • Publication number: 20060157574
    Abstract: A method, apparatus and computer program for generating a barcode (200) representing one or more portions of data is disclosed. A block-based correlatable pattern of data is generated and the generated data patterns are arranged according to a predetermined arrangement. The one or more portions of data are interdispersed with the arranged data patterns to generate the barcode (200).
    Type: Application
    Filed: December 19, 2005
    Publication date: July 20, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Stephen Farrar, Stephen Hardy, Peter Fletcher, Kieran Larkin, Eric Cheung, Stephen Ecob
  • Patent number: 6972887
    Abstract: A high-energy optical beam generator providing a desired output waveform. The generator includes a master oscillator, such as a mode-locked laser, to generate an input beam, a first dispersive element to decompose the input beam into frequency components, a set of phase and amplitude modulators to modulate the frequency components individually, a set of power amplifiers to amplify the frequency components individually, and a second dispersive element to recombine the amplified and modulated frequency components into a single output beam. Phase control electronics control the modulators to provide the desired waveform for the output beam, based on its intended application and on sensed characteristics of the input beam and the output beam.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: December 6, 2005
    Assignee: Northrop Grumman Corporation
    Inventors: Michael G. Wickham, Hiroshi Komine, Eric Cheung
  • Publication number: 20050157761
    Abstract: A laser array architecture scalable to very high powers by closely stacking fiber amplifiers, but in which the output wavelength is selectable to be in the visible or ultraviolet region, without being restricted by the wavelengths usually inherent in the choice of fiber materials. A pump signal at a fundamental frequency is amplified in the fiber amplifier array and input to an array of nonlinear crystals that function as harmonic generators, producing an output array at a desired harmonic of the fundamental frequency. A phase detection and correction system maintains the array of outputs in phase coherency, resulting in a high power output with high beam quality, at the desired frequency. The array of nonlinear crystals may a single array to produce a second harmonic output frequency, or a combination of multiple cascaded arrays configured to produce a selected higher order harmonic frequency.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 21, 2005
    Inventors: Joshua Rothenberg, Eric Cheung, Hiroshi Komine, Robert Rice, Michael Wickham
  • Publication number: 20050157760
    Abstract: A laser array architecture scalable to very high powers by fiber amplifiers, but in which the output wavelength is selectable, and not restricted by the wavelengths usually inherent in the choice of fiber materials. A pump beam at a first frequency is amplified in the fiber amplifier array and is mixed with a secondary beam at a second frequency to yield a frequency difference signal from each of an array of optical parametric amplifiers. A phase detection and correction system maintains the array of outputs from the amplifiers in phase coherency, resulting in a high power output at the desired wavelength. A degenerate form of the architecture is disclosed in an alternate embodiment, and a third embodiment employs dual wavelength fiber amplifiers to obtain an output at a desired difference frequency.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 21, 2005
    Inventors: Robert Rice, Michael Wickham, Eric Cheung, Hiroshi Komine, Joshua Rothenberg
  • Publication number: 20050128554
    Abstract: A high-energy optical beam generator providing a desired output waveform. The generator includes a master oscillator, such as a mode-locked laser, to generate an input beam, a first dispersive element to decompose the input beam into frequency components, a set of phase and amplitude modulators to modulate the frequency components individually, a set of power amplifiers to amplify the frequency components individually, and a second dispersive element to recombine the amplified and modulated frequency components into a single output beam. Phase control electronics control the modulators to provide the desired waveform for the output beam, based on its intended application and on sensed characteristics of the input beam and the output beam.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 16, 2005
    Inventors: Michael Wickham, Hiroshi Komine, Eric Cheung
  • Patent number: 6907012
    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: October 24, 2000
    Date of Patent: June 14, 2005
    Assignee: AT & T Corp.
    Inventors: Eric Cheung, Mark Jeffrey Foladare, Shelley B. Goldman, James Christopher Ramming