Patents by Inventor Madhu Krishnaswamy

Madhu Krishnaswamy 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).

  • Automatic optical power management in optical communications system
    Patent number: 7260324
    Abstract: An automatic optical power management system for use with an optical communications system includes a light source residing in a first circuit pack and adapted to emit light at a nominal power level only absent receipt of an indicator signifying a loss of signal resulting from a fiber discontinuity relating to the first optical fiber, wherein the nominal power level is of sufficient magnitude to violate laser safety guidelines in the event of the fiber discontinuity. A redundant detection system includes a first optical detector residing in the first circuit pack, and a second optical detector residing in a second circuit pack that is optically adjacent to the first circuit. A redundant response system communicates an indicator signifying loss of signal from the first and second optical detectors to the light source upon detection of loss of signal by either detector.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: August 21, 2007
    Assignee: Altera Corporation
    Inventors: Chris Passier, David Atkinson, Carl Krentz, Madhu Krishnaswamy, Jean Guy Chauvin, Andrew Robinson, Rajkumar Nagarajan
  • Automatic optical power management in an optical communications system
    Publication number: 20040047628
    Abstract: An automatic optical power management system for use with an optical communications system includes a light source residing in a first circuit pack and adapted to emit light at a nominal power level only absent receipt of an indicator signifying a loss of signal resulting from a fiber discontinuity relating to the first optical fiber, wherein the nominal power level is of sufficient magnitude to violate laser safety guidelines in the event of the fiber discontinuity. A redundant detection system includes a first optical detector residing in the first circuit pack, and a second optical detector residing in a second circuit pack that is optically adjacent to the first circuit. A redundant response system communicates an indicator signifying loss of signal from the first and second optical detectors to the light source upon detection of loss of signal by either detector.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 11, 2004
    Inventors: Chris Passier, David Atkinson, Carl Krentz, Madhu Krishnaswamy, Jean Guy Chauvin, Andrew Robinson, Rajkumar Nagarajan