Patents by Inventor Jeffrey Loukusa

Jeffrey Loukusa 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).

  • Circuit for adjusting the temperature coefficient of a resistor
    Patent number: 8093956
    Abstract: A temperature-compensated-resistance (TCR) circuit, which may be part of an integrated circuit, is provided. The TCR circuit consists of two resistors and a diode. The two resistors are connected in parallel and the diode is connected in series with one of the resistors. The two parallel legs of the TCR circuit may be connected to a reference voltage source, such as a ground. No specialized devices, such as bipolar transistors, Zener or Schottky diodes, or specially-processed resistors, are required by the TCR circuit. The resistors and the diode of the TCR circuit may be chosen to adjust for temperature variations in the resistance values of the resistor, leading to a negative, zero, or positive temperature coefficient of resistance for the circuit. A phase-locked loop (PLL) circuit is described as an application of the TCR circuit.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: January 10, 2012
    Assignee: Honeywell International Inc.
    Inventors: Xiaoxin Feng, Jeffrey Loukusa
  • Circuit for Adjusting the Temperature Coefficient of a Resistor
    Publication number: 20100176886
    Abstract: A temperature-compensated-resistance (TCR) circuit, which may be part of an integrated circuit, is provided. The TCR circuit consists of two resistors and a diode. The two resistors are connected in parallel and the diode is connected in series with one of the resistors. The two parallel legs of the TCR circuit may be connected to a reference voltage source, such as a ground. No specialized devices, such as bipolar transistors, Zener or Schottky diodes, or specially-processed resistors, are required by the TCR circuit. The resistors and the diode of the TCR circuit may be chosen to adjust for temperature variations in the resistance values of the resistor, leading to a negative, zero, or positive temperature coefficient of resistance for the circuit. A phase-locked loop (PLL) circuit is described as an application of the TCR circuit.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 15, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Xiaoxin Feng, Jeffrey Loukusa