Patents by Inventor Jos De Langen

Jos De Langen 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).

  • Systems and methods for diagnostic monitoring of optical modulation amplitude at an optical receiver using automatic gain control
    Patent number: 8346101
    Abstract: Optical receivers and a method for providing a diagnostic measurement of optical modulation amplitude at other than a signal output of an optical receiver are invented and disclosed. The method includes the steps of applying a representation of an output of an optical detector to a circuit that determines a difference between a first signal level and a second signal level that is different from the first signal level and buffering the difference between the first signal level and the second signal level received from the circuit. The optical receivers include an optical detector, a transimpedance amplifier that applies automatic gain control, a circuit that determines a difference between two signal values and a limiting post amplifier. The receivers provide a diagnostic measure that can be compared to certain thresholds relating to known bit error rates or applied in a calculation to generate an absolute optical modulation amplitude value.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: January 1, 2013
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd
    Inventors: Jos De Langen, Tze Wei Lim, Adrianus J. P. Van Haasteren
  • Systems and Methods for Diagnostic Monitoring of Optical Modulation Amplitude at an Optical Receiver Using Automatic Gain Control
    Publication number: 20120219286
    Abstract: Optical receivers and a method for providing a diagnostic measurement of optical modulation amplitude at other than a signal output of an optical receiver are invented and disclosed. The method includes the steps of applying a representation of an output of an optical detector to a circuit that determines a difference between a first signal level and a second signal level that is different from the first signal level and buffering the difference between the first signal level and the second signal level received from the circuit. The optical receivers include an optical detector, a transimpedance amplifier that applies automatic gain control, a circuit that determines a difference between two signal values and a limiting post amplifier. The receivers provide a diagnostic measure that can be compared to certain thresholds relating to known bit error rates or applied in a calculation to generate an absolute optical modulation amplitude value.
    Type: Application
    Filed: May 11, 2012
    Publication date: August 30, 2012
    Applicant: AVAGO TECHNOLOGIES FIBER IP (SINGAPORE) PTE. LTD.
    Inventors: Jos De Langen, Tze Wei Lim, Adrianus J.P. van Haasteren
  • Systems and methods for diagnostic monitoring of optical modulation amplitude at an optical receiver using automatic gain control
    Patent number: 8200100
    Abstract: Optical receivers and a method for providing a diagnostic measurement of optical modulation amplitude at other than a signal output of an optical receiver are invented and disclosed. The method includes the steps of applying a representation of an output of an optical detector to a circuit that determines a difference between a first signal level and a second signal level that is different from the first signal level and buffering the difference between the first signal level and the second signal level received from the circuit. The optical receivers include an optical detector, a transimpedance amplifier that applies automatic gain control, a circuit that determines a difference between two signal values and a limiting post amplifier. The receivers provide a diagnostic measure that can be compared to certain thresholds relating to known bit error rates or applied in a calculation to generate an absolute optical modulation amplitude value.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: June 12, 2012
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd
    Inventors: Jos De Langen, Tze Wei Lim, Adrianus J. P. Van Haasteren
  • Systems and Methods for Diagnostic Monitoring of Optical Modulation Amplitude at an Optical Receiver Using Automatic Gain Control
    Publication number: 20100183296
    Abstract: Optical receivers and a method for providing a diagnostic measurement of optical modulation amplitude at other than a signal output of an optical receiver are invented and disclosed. The method includes the steps of applying a representation of an output of an optical detector to a circuit that determines a difference between a first signal level and a second signal level that is different from the first signal level and buffering the difference between the first signal level and the second signal level received from the circuit. The optical receivers include an optical detector, a transimpedance amplifier that applies automatic gain control, a circuit that determines a difference between two signal values and a limiting post amplifier. The receivers provide a diagnostic measure that can be compared to certain thresholds relating to known bit error rates or applied in a calculation to generate an absolute optical modulation amplitude value.
    Type: Application
    Filed: January 19, 2009
    Publication date: July 22, 2010
    Applicant: Avago Technologied Fiber IP (Singapore) Pte. Ltd.
    Inventors: Jos De Langen, Tze Wei Lim, Adrianus J.P. Van Haasteren