Patents Represented by Attorney Achmed Sadik

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  • Method and circuit for data regeneration of a data stream
    Patent number: 5905755
    Abstract: Method and circuit for deciding whether or not a pulse in a data stream is or is not a valid pulse of the data stream, wherein a free-running local clock at N-times the data rate is generated and clock pulses thereof are counted once the data stream signal reaches and remains above a slicing threshold. Once a predetermined minimum number of counted clock pulses is attained a valid data pulse signal is issued.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: May 18, 1999
    Assignee: Northern Telecom Limited
    Inventor: Manfred Ficker
  • Transformerless data transmission line driver
    Patent number: 5818874
    Abstract: A line driver circuit uses a ROM to store coefficients corresponding to incoming data pulses and converts the coefficients in a digital-to-analog converter to the desired pulse (signal) shape, which drives a current-mirror for applying high level bipolar signals to the transmission line.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: October 6, 1998
    Assignee: Northern Telecom Limited
    Inventors: Ted Lewandowski, Manfred Ficker