Patents by Inventor Shahin Taleie

Shahin Taleie 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).

  • Finite impulse response digital to analog converter
    Patent number: 7528754
    Abstract: A noise-shaped direct digital IF to RF DAC (DIF2RF) with embedded up-converter mixer is presented. The digital IF signal is noised shaped by a band-pass ?? modulator with a single bit IF output followed by a semi-digital current-mode IF filter to attenuate out-of-band quantization noise. A current steering DAC combines scaled values of local oscillator (LO) signals as current sources for performing current steering and upconversion in a single cell.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: May 5, 2009
    Assignee: Arizona Board of Regents
    Inventors: Bertan Bakkaloglu, Sayfe Kiaei, Shahin Taleie