Patents by Inventor Peter Mandl

Peter Mandl 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: 5550764
    Abstract: A decimator for effecting a X:1 decimation, where X=is any positive integer greater than 1, comprising a FIR filter for receiving and filtering an input stream of data bits and in response generating a like number of filtered output data bits; and a hold circuit for sampling and outputting every Xth one of the filtered output data bits.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: August 27, 1996
    Assignee: Genesis Microchip Inc.
    Inventor: Peter Mandl
  • Patent number: 5479454
    Abstract: A digital filter characterized by a plurality of filter coefficients, positive ones of the coefficients being represented by unsigned binary integers and negative ones of the coefficients being represented by 2's complement binary integers, comprising an input for receiving a digital input signal comprising a first predetermined number of bits; means for truncating or rounding at least one leading "0" or trailing "0" of the positive ones of the coefficients and at least one leading "1" or trailing "0" of the negative ones of the coefficients, such that significance of the integers is removed; means for successively delaying the digital input signal to produce successively delayed versions of the digital input signal; means for multiplying the successively delayed versions of the digital input signal by respective ones of the truncated representations of the respective ones of the plurality of filter coefficients and in response generating a plurality of intermediate product integers; means for restoring signi
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: December 26, 1995
    Assignee: Genesis Microchip Inc.
    Inventors: Lance Greggain, Peter Mandl
  • Patent number: 5440653
    Abstract: In a multi-rate digital signal processing system for re-sizing an image in at least two segments using at least two symmetric T-tap digital filters each having T kernel-function weighting coefficients, where T is an odd plural integer, a first one of the segments being characterized by a first plurality of unfiltered pixels and second adjacent one of the segments being characterized by a second plurality of unfiltered pixels, a predetermined one of the unfiltered pixels being common to both the first and the second plurality at the image boundary of the two segments, the improvement comprising a method of seamlessly extending the image across the image boundary, comprising the steps of multiplying the (T-1)/2 of the first plurality and the second plurality of the unfiltered pixels adjacent the predetermined one of the pixels by two times respective ones of the kernel function weighting coefficients for generating the first and second mirrored half kernel intermediate multiplication products; multiplying the p
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: August 8, 1995
    Assignee: Genesis Microchip Inc.
    Inventors: Lance Greggain, Peter Mandl