Patents by Inventor John Hart Lindemann

John Hart Lindemann 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).

  • High speed detectors having integrated electrical components
    Patent number: 6919609
    Abstract: An opto-electronic device configured as a photodetector has a capacitor and/or resistor monolithically formed on a surface of the photodetector. The capacitor capacitively couples the AC ground of the photodetector to the bias terminal of the photodetector. The on chip capacitor design eliminates the inductance of external circuit traces between the power supply and an external capacitor. The resistor forces the AC return current of the photodetector through the AC ground in preference to the typical (DC bias terminal) path. Combinations of capacitors and resistors are particularly effective in reducing crosstalk among adjacent detectors in arrays.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: July 19, 2005
    Assignee: Optical Communication Products, Inc.
    Inventors: John Hart Lindemann, Michael Thomas Dudek, David Galt
  • High speed detectors having integrated electrical components
    Publication number: 20040188793
    Abstract: An opto-electronic device configured as a photodetector has a capacitor and/or resistor monolithically formed on a surface of the photodetector. The capacitor capacitively couples the AC ground of the photodetector to the bias terminal of the photodetector. The on chip capacitor design eliminates the inductance of external circuit traces between the power supply and an external capacitor. The resistor forces the AC return current of the photodetector through the AC ground in preference to the typical (DC bias terminal) path. Combinations of capacitors and resistors are particularly effective in reducing crosstalk among adjacent detectors in arrays.
    Type: Application
    Filed: April 1, 2004
    Publication date: September 30, 2004
    Inventors: John Hart Lindemann, Michael Thomas Dudek, David Galt
  • High speed detectors having integrated electrical components
    Patent number: 6774448
    Abstract: An opto-electronic device configured as a photodetector has a capacitor and/or resistor monolithically formed on a surface of the photodetector. The capacitor capacitively couples the AC ground of the photodetector to the bias terminal of the photodetector. The on chip capacitor design eliminates the inductance of external circuit traces between the power supply and an external capacitor. The resistor forces the AC return current of the photodetector through the AC ground in preference to the typical (DC bias terminal) path. Combinations of capacitors and resistors are particularly effective in reducing crosstalk among adjacent detectors in arrays.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: August 10, 2004
    Assignee: Optical Communication Products, Inc.
    Inventors: John Hart Lindemann, Michael Thomas Dudek, David Galt