Patents by Inventor Qadeer Ahmad Khan

Qadeer Ahmad Khan 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).

  • Switched capacitor current reference circuit
    Patent number: 6784725
    Abstract: A switched capacitor current reference circuit generates an almost constant reference current across the parameters of process, voltage and temperature. A reference voltage is generated within the circuit, which eliminates the need for an external reference voltage. The reference current is generated by applying the reference voltage across a resistor emulated with a pair of switched capacitor circuits.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: August 31, 2004
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Sanjay Kumar Wadhwa, Qadeer Ahmad Khan, Kulbhushan Misri