Patents by Inventor Shaker A. Mahemood

Shaker A. Mahemood 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).

  • CMOS current-mode folding amplifier
    Patent number: 8610614
    Abstract: A CMOS current-mode folding amplifier circuit is provided that uses MOSFETs operating in relatively strong inversion. The CMOS current-mode folding amplifier circuit produces a saw-tooth shaped input-output characteristic which provides for relative precision in flash-type analog-to-digital converters. Furthermore, the CMOS current-mode folding amplifier circuit uses a plurality of simple current mirrors, in addition to biasing currents, for defining the switching levels. Accordingly, the current-mode amplifier requires less area on the chip and consumes less power relative to other analog preprocessing circuits. Moreover, the CMOS current-mode folding amplifier circuit is resilient to process, temperature and power supply variations. Tanner simulation tools using 0.35 ?m CMOS technology confirm the functionality of the current-mode folding amplifier.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: December 17, 2013
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Munir A. Al-Absi, Muhammad T. Abuela'Atti, Shaker A. Mahemood