Patents Represented by Attorney Clifton D. Mueller

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  • Randomly changing pulse polarity and phase in an UWB signal for power spectrum density shaping
    Patent number: 7298792
    Abstract: A method and system eliminate spectral lines and shapes the power spectral density of an ultra bandwidth signal. First, a train of non-periodic pulses is generated. The non-periodic pulses are then modulated in time according to uncorrelated symbols. A polarity of the non-periodic pulses is inverted randomly before transmitting the non-periodic pulses as an ultra wide bandwidth signal to eliminate spectral lines and to shape a power spectral density of the ultra wide bandwidth signal.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: November 20, 2007
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Yves-Paul Nakache, Andreas F. Molisch, Jinyun Zhang