Patents by Inventor Amir Gholamhossein Zadeh Aghdam

Amir Gholamhossein Zadeh Aghdam 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 apparatus for impairment diagnosis in communication systems
    Patent number: 6970560
    Abstract: Events that occur in a number of in domain communication channels where each channel is used by a communication service, are detected. A Bayesian Belief Network (BBN) defines a probabilistic cause-effect relationship between each cause and each effect on a victim channel. The probability of each of a number of possible causes as being a cause of interference in the victim channel is determined, by propagating observations of the interference backwards through the BBN.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: November 29, 2005
    Assignee: Tokyo Electron Limited
    Inventors: John Josef Hench, Thorkell Gudmundsson, Amir Gholamhossein Zadeh Aghdam, Ioannis Kanellakopoulos, Gurcan Aral, Yaolong Tan, Harbinder Singh, Sunil C. Shah
  • Design and architecture of an impairment diagnosis system for use in communications systems
    Patent number: 6870901
    Abstract: A method and apparatus are disclosed. The method includes one or more of the following: compiling statistical models of physical layers of a communications system; creating a priori distributions of cross-talk transfer functions; storing the models and the a priori distribution in a storage medium; and using the models and the a priori distributions to diagnose probable causes of events detected in said communications system.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: March 22, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Thorkell Gudmundsson, John Josef Hench, Amir Gholamhossein Zadeh Aghdam, Ioannis Kanellakopoulos, Gurcan Aral, Harbinder Singh, Yaolong Tan, Sunil C. Shah