Patents by Inventor Alvin Chubbs

Alvin Chubbs 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).

  • Lawful interception of real time packet data
    Patent number: 8599747
    Abstract: A method of conducting a lawful intercept of real time media packet traffic involves redirecting real time media packet streams between a caller and callee through a media server; replicating the media packet streams within the media server; modifying packet headers of the replicated packet streams; and directing the modified packet streams to at least one monitoring port.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: December 3, 2013
    Assignee: Radisys Canada Inc.
    Inventors: Adnan Saleem, Neil Gunn, Yong Xin, Jagtar Gill, Alvin Chubbs
  • METHOD OF PASSING SIGNAL EVENTS THROUGH A VOICE OVER IP AUDIO MIXER DEVICE
    Publication number: 20130250817
    Abstract: In Voice-over-IP or like systems, audio mixers are used for implanting conferencing applications for IP networks. In such systems, a problem exists as how to pass through user signal events, such a DTMF digits, in-band as well as out-of-band telephony events (RFC 2833/4733) because they are not handled well in such systems. In accordance with certain embodiments, a signalling event in incoming audio packets or user signalling event received out-of-band is detected at one of the inputs. A meta-data representation of the signal event is attached to the audio and passed through the mixer for regeneration, as in-band or out-of-band telephony events, on the other side of the mixer.
    Type: Application
    Filed: May 16, 2013
    Publication date: September 26, 2013
    Applicant: RadiSys Canada ULC
    Inventors: Adnan Saleem, Neil Gunn, Yong Xin, Jagtar Gill, Alvin Chubbs, Tim Woinoski
  • Method of passing signal events through a voice over IP audio mixer device
    Patent number: 8446846
    Abstract: In Voice-over-IP or like systems, audio mixers are used for implanting conferencing applications for IP networks. In such systems, a problem exists as how to pass through user signal events, such a DTMF digits, in-band as well as out-of-band telephony events (RFC 2833/4733) because they are not handled well in such systems. In accordance with the invention, a signalling event in incoming audio packets or user signalling event received out-of-band is detected at one of the inputs. A meta-data representation of the signal event is attached to the audio and passed through the mixer for regeneration, as in-band or out-of-band telephony events, on the other side of the mixer.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: May 21, 2013
    Assignee: Radisys Canada ULC
    Inventors: Adnan Saleem, Neil Gunn, Yong Xin, Jagtar Gill, Alvin Chubbs, Tim Woinoski
  • Multimedia processing in parallel multi-core computation architectures
    Patent number: 8081191
    Abstract: In a media server for processing data packets, media server functions are implemented by a plurality of modules categorized by real-time response requirements.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: December 20, 2011
    Assignee: RadiSys Canada ULC
    Inventors: Adnan Saleem, Alvin Chubbs, Neil Gunn, James Davidson, Serguei Smirnov
  • MULTIMEDIA PROCESSING IN PARALLEL MULTI-CORE COMPUTATION ARCHITECTURES
    Publication number: 20090083516
    Abstract: In a media server for processing data packets, media server functions are implemented by a plurality of modules categorized by real-time response requirements.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 26, 2009
    Applicant: RADISYS CANADA, INC.
    Inventors: Adnan Saleem, Alvin Chubbs, Neil Gunn, James Davidson