Patents by Inventor Jean-Marie Calmel

Jean-Marie Calmel 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).

  • Patent number: 6745141
    Abstract: To report the time distribution of a succession of specified events such as occurrences of particular data elements in telecommunications equipment, the method comprises an initialization of a sampling quantity consisting of a positive integer and several successive iterations of a scheme comprising the following steps: detection of a number of events equal to the sampling quantity and metering of a sampling time taken to detect said number of events; quantization of the sampling time metered in the previous step so as to output coding data representing a quantized value of the metered sampling time; and updating of the sampling quantity as a function of parameters including the quantized value of this sampling time.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: June 1, 2004
    Assignee: Nortel Networks Limited
    Inventors: Olivier Isnard, Jean-Marie Calmel, Laurent Pison
  • Publication number: 20030219005
    Abstract: Each radio station (2) has a receiving window associated with each frame, positioned according to a time marker inserted in the said frame by a control unit (1). The frames include data frames (5), in which the time marker is inserted for synchronization with a radio terminal (4), and signalling frames. Each radio station indicates a data frame received outside the associated receiving window, and responds to a signalling frame by returning to the control unit a synchronization parameter representing a time of arrival of the said signalling frame. In a period of transmission of successive data frames: signalling frames are transmitted to each radio station simultaneously; returned synchronization parameters are processed; and times of transmission of successive data frames are controlled according to the processed parameters.
    Type: Application
    Filed: April 25, 2003
    Publication date: November 27, 2003
    Applicant: NORTEL NETWORKS LIMITED
    Inventors: Olivier Isnard, Frederic Ratovelomanana, Jean-Marie Calmel, Robert W. Dijkerman, Shedman Tam, Quanying Peng, Jian G. Zhao
  • Publication number: 20020188420
    Abstract: To report the time distribution of a succession of specified events such as occurrences of particular data elements in telecommunications equipment, the method comprises an initialization of a sampling quantity consisting of a positive integer and several successive iterations of a scheme comprising the following steps: detection of a number of events equal to the sampling quantity and metering of a sampling time taken to detect said number of events; quantization of the sampling time metered in the previous step so as to output coding data representing a quantized value of the metered sampling time; and updating of the sampling quantity as a function of parameters including the quantized value of this sampling time.
    Type: Application
    Filed: May 3, 2002
    Publication date: December 12, 2002
    Inventors: Olivier Isnard, Jean-Marie Calmel, Laurent Pison