Patents by Inventor Douw Gerbrand VAN DER MERWE

Douw Gerbrand VAN DER MERWE 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).

  • INDUCTANCE SENSING
    Publication number: 20180128650
    Abstract: Measurement of inductance values though the use of a charge transfer based measurement system wherein during a first phase, a target inductor is connected to an energy source to allow current through an inductor to increase and in a second phase the inductor is disconnected from the energy source, to allow the current to decrease, and to facilitate transfer of charge to a capacitor. The phases may be repeated, and a count is kept of the number of repetitions.
    Type: Application
    Filed: February 26, 2016
    Publication date: May 10, 2018
    Applicant: AZOTEQ (PTY) LTD
    Inventors: Frederick Johannes BRUWER, Douw Gerbrand VAN DER MERWE
  • CHARGE TRANSFER MEASUREMENT TECHNIQUES
    Publication number: 20160370411
    Abstract: A charge transfer measurement system which includes a clock, a capacitor, current mirrors and a counter wherein a signal current which is based on magnetic field, incident light or radiation, acceleration or an external inductance is transferred to the capacitor with the counter recording a count value and wherein the measurement is stopped after a predetermined time or when a voltage on the capacitor exceeds a reference value.
    Type: Application
    Filed: February 27, 2015
    Publication date: December 22, 2016
    Applicant: AZOTEQ (PTY) LTD
    Inventors: Frederick Johannes BRUWER, Dieter Sydney-Charles MELLET, Douw Gerbrand VAN DER MERWE, Daniel Barend RADEMEYER, Jean VILJOEN