Patents by Inventor Angelo Corrao

Angelo Corrao 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).

  • Transcoding arrangement in a session initiation
    Patent number: 7301913
    Abstract: This invention relates to a SIP and SDP protocols. The idea of the invention is to modify SDP descriptions included in SIP messages to facilitate transcoding. After receiving an INVITE message from a calling party, the SIP proxy negotiates with a transcoder for getting a list of codecs of the transcoder and their address information. The SIP proxy adds the codec list of the transcoder to the received SDP description in the invite message, and sends this way modified SDP description in an INVITE message to a called party. After receiving the modified SDP, the called party selects codecs or a list of suitable codecs according to preferences in the modified SDP and its own preferences.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: November 27, 2007
    Assignee: Nokia Corporation
    Inventors: Angelo Corrao, Robert Sugar, Markus Isomäki
  • Transcoding arrangement in a session initiation
    Publication number: 20040240399
    Abstract: This invention relates to a SIP and SDP protocols. The idea of the invention is to modify SDP descriptions included in SIP messages to facilitate transcoding. After receiving an INVITE message from a calling party, the SIP proxy negotiates with a transcoder for getting a list of codecs of the transcoder and their address information. The SIP proxy adds the codec list of the transcoder to the received SDP description in the invite message, and sends this way modified SDP description in an INVITE message to a called party. After receiving the modified SDP, the called party selects codecs or a list of suitable codecs according to preferences in the modified SDP and its own preferences.
    Type: Application
    Filed: March 24, 2004
    Publication date: December 2, 2004
    Inventors: Angelo Corrao, Robert Sugar, Markus Isomaki