Patents by Inventor Michael de Wit

Michael de Wit 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).

  • Patent number: 6903615
    Abstract: A digitally-controlled oscillator (DCO) (60), such as may be used in clock generator or clock recovery circuitry in an integrated circuit, is disclosed. The disclosed DCO (60) is a single-stage oscillator including a variable load implemented as a binary-weighted array of switched capacitors (40). Each of capacitors (40) has a plate connected to a common node (X), and a plate that receives a signal corresponding to one bit of a digital control word (DCOCW). The common capacitor node (X) is also connected to the input of a Schmitt trigger (42) that produces the output clock signal (OUTCLK) and a feedback signal that is applied to logic (38, 39) that inverts the common node of the capacitors (40). The switching time at the input of Schmitt trigger (42) depends upon the variable load presented by the array of switched capacitors (40), which is controlled by the digital control word (DCOCW). As a result, the clock signal (OUTCLK) is digitally synthesized by a single stage of the DCO (60).
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: June 7, 2005
    Assignee: Texas Instruments Incorporated
    Inventors: Paul E. Landman, Wai Lee, John W. Fattaruso, Michael de Wit
  • Publication number: 20040042931
    Abstract: The invention concerns the use of semi-conductive coatings, based on doped &pgr;-conjugated arylene alkenylene oligomers, in the active layer of sensors, and in arrays of such sensors applicable for the analytical characterization of gases and liquids, applicable in detecting systems for chromatography as well as in the context of an “electronic nose” or “electronic tongue”.
    Type: Application
    Filed: June 3, 2003
    Publication date: March 4, 2004
    Applicant: Oligosense NV
    Inventors: Michael De Wit, Emmanuel Vanneste, Frank Blockhuys, Gunter Verreyt, Wim Tachelet, Luc J. Nagels, Herman J. Geise
  • Patent number: 6572826
    Abstract: Chemically sensitive sensors, suitable for detecting analytes in fluids (in gaseous or liquid phase), wherein the chemically sensitive sensors comprise a chemically sensitive probe, which comprises one or a blend of several arylene alkenylene oligomers.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: June 3, 2003
    Assignee: OligoSense NV
    Inventors: Michaƫl De Wit, Emmanuel Vanneste, Frank Blockhuys, Gunter Verreyt, Wim Tachelet, Luc J. Nagels, Herman J. Geise
  • Patent number: 6042788
    Abstract: Chemically sensitive sensors, suitable for detecting analytes in fluids (in gaseous or liquid phase), characterised in that the chemically sensitive sensors comprise a chemically sensitive probe, which comprises one or a blend of several arylene alkenylene oligomers.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: March 28, 2000
    Assignee: Interuniversitair Micro-Elektronica Centrum (IMEC)
    Inventors: Michael De Wit, Emmanuel Vanneste, Frank Blockhuys, Gunter Verreyt, Wim Tachelet, Luc J. Nagels, Herman J. Geise