Patents by Inventor David H. Tsai

David H. Tsai 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).

  • Phase correction of channelizer output without multipliers
    Patent number: 10103924
    Abstract: A method and system for phase correction in a receiver receives a plurality of samples and filters the samples using a polyphase FIR filter. The samples are simultaneously shifted, centered and channelized using a MUX/negate process and a fast Fourier transform (FFT).
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 16, 2018
    Assignee: Raytheon Company
    Inventors: David H. Tsai, Mitchell D. Parr
  • Interpolated channelizer with compensation for non-linear phase offsets
    Patent number: 10044488
    Abstract: A system and method for interpolating non-integer oversamples in a receiver receives a plurality of samples, the plurality of samples having a quantity which has a non-integer ratio to a number of channels of a channelizer of the receiver. A non-linear phase correction is applied to the plurality of samples.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: August 7, 2018
    Assignee: Raytheon Company
    Inventor: David H. Tsai