Patents by Inventor Andrew L. Aczel

Andrew L. Aczel 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).

  • Method and architecture for providing telephony between data networks and PSTN
    Publication number: 20040228333
    Abstract: A method consistent with the present invention enables communicating telephonic data regarding a call over a data network. The method includes the steps of receiving data units from a first data network over redundant communication paths. Next, it is determined whether the received data units have an error. One of the received date units is then selected from one of the redundant communication paths determined not to have an error and the selected data unit is forwarded to a second data network.
    Type: Application
    Filed: April 6, 2004
    Publication date: November 18, 2004
    Inventors: Mark G. Schnell, Andrew L. Aczel, Richard Loveland
  • Method and architecture for providing telephony between data networks and PSTN
    Patent number: 6735168
    Abstract: A method consistent with the present invention enables communicating telephonic data regarding a call over a data network. The method includes the steps of receiving data units from a first data network over redundant communication paths. Next, it is determined whether the received data units have an error. One of the received date units is then selected from one of the redundant communication paths determined not to have an error, and the selected data unit is forwarded to a second data network.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: May 11, 2004
    Assignee: Nortel Networks Limited
    Inventors: Mark G. Schnell, Andrew L. Aczel, Richard Loveland
  • Resource-decoupled architecture for a telecommunications switching system
    Patent number: 4970721
    Abstract: The invention provides a telecommunications system exhibiting an architecture having a plurality of functional levels decoupled from one another by data transport systems. The communication facilities connected to the periphery of the system are terminated at the physical level only and the data is channelized for transmission through a channel switch to a first level of processing that provides channel services. The data is then multiplexed and transmitted to system and call processing resources via a frame transport system.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: November 13, 1990
    Assignee: Northern Telecom Limited
    Inventors: Andrew L. Aczel, Robert W. Pfeffer, Frank Mellor, Ernst A. Munter