Patents by Inventor David Samuel Einstein

David Samuel Einstein 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).

  • Protection of channel connections in an optical network
    Patent number: 11546079
    Abstract: An optical end terminal in which protection switching is implemented by using (i) the optical data receiver thereof for detecting a path failure and (ii) the optical data transmitter thereof for signaling the detected path failure to the protection-switching circuit. In an example embodiment, the optical data receiver is configured to detect a path failure based on the presence of certain data-recovery errors. The optical data transmitter is operatively connected to the optical data receiver and configured to generate an in-band dither tone of a predetermined frequency in response to such failure detection. The protection-switching circuit is configured to (i) detect dither tones in the optical signals passing therethrough and (ii) connect the optical data receiver to the protection path instead of the working path in response to detecting the dither tone of the predetermined frequency.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: January 3, 2023
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Patrick Chilufya Chimfwembe, Andreas Benz, David Samuel Einstein
  • Protection of Channel Connections in an Optical Network
    Publication number: 20210091875
    Abstract: An optical end terminal in which protection switching is implemented by using (i) the optical data receiver thereof for detecting a path failure and (ii) the optical data transmitter thereof for signaling the detected path failure to the protection-switching circuit. In an example embodiment, the optical data receiver is configured to detect a path failure based on the presence of certain data-recovery errors. The optical data transmitter is operatively connected to the optical data receiver and configured to generate an in-band dither tone of a predetermined frequency in response to such failure detection. The protection-switching circuit is configured to (i) detect dither tones in the optical signals passing therethrough and (ii) connect the optical data receiver to the protection path instead of the working path in response to detecting the dither tone of the predetermined frequency.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 25, 2021
    Applicant: Nokia Solutions and Networks OY
    Inventors: Patrick Chilufya Chimfwembe, Andreas Benz, David Samuel Einstein
  • Protection of channel connections in an optical network
    Patent number: 10805034
    Abstract: An optical end terminal in which protection switching is implemented by using (i) the optical data receiver thereof for detecting a path failure and (ii) the optical data transmitter thereof for signaling the detected path failure to the protection-switching circuit. In an example embodiment, the optical data receiver is configured to detect a path failure based on the presence of certain data-recovery errors. The optical data transmitter is operatively connected to the optical data receiver and configured to generate an in-band dither tone of a predetermined frequency in response to such failure detection. The protection-switching circuit is configured to (i) detect dither tones in the optical signals passing therethrough and (ii) connect the optical data receiver to the protection path instead of the working path in response to detecting the dither tone of the predetermined frequency.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: October 13, 2020
    Assignee: Nokia Solutions and Networks OY
    Inventors: Patrick Chilufya Chimfwembe, Andreas Benz, David Samuel Einstein
  • PROTECTION OF CHANNEL CONNECTIONS IN AN OPTICAL NETWORK
    Publication number: 20190260493
    Abstract: An optical end terminal in which protection switching is implemented by using (i) the optical data receiver thereof for detecting a path failure and (ii) the optical data transmitter thereof for signaling the detected path failure to the protection-switching circuit. In an example embodiment, the optical data receiver is configured to detect a path failure based on the presence of certain data-recovery errors. The optical data transmitter is operatively connected to the optical data receiver and configured to generate an in-band dither tone of a predetermined frequency in response to such failure detection. The protection-switching circuit is configured to (i) detect dither tones in the optical signals passing therethrough and (ii) connect the optical data receiver to the protection path instead of the working path in response to detecting the dither tone of the predetermined frequency.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 22, 2019
    Applicant: Nokia Solutions and Networks Oy
    Inventors: Patrick Chilufya Chimfwembe, Andreas Benz, David Samuel Einstein