Patents by Inventor Aimon Shabra

Aimon Shabra 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).

  • Oversampled pipeline A/D converter with mismatch shaping
    Patent number: 6137431
    Abstract: An analog-to-digital converter including an input that samples an analog input signal; circuitry for multiplying the sampled analog input signal by a sequence including -1 and 1; a conversion unit which converts the analog input signal into a monotonic digital output signal; and circuitry for multiplying the digital output signal by the sequence of -1 and 1 in phase with the first means to produce a mismatch shaped digital output signal. In another embodiment of the invention there is provided a method of analog-to-digital including sampling phases of an analog input signal; multiplying the sampled phases of the analog input signal by a sequence including -1 and 1; converting the analog input signal into a monotonic digital output signal; and multiplying in phase the digital output signal by the sequence of -1 and 1 in phase to produce a mismatch shaped digital output signal.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: October 24, 2000
    Assignee: Massachusetts Institute of Technology
    Inventors: Hae-Seung Lee, Aimon Shabra