Patents by Inventor Claus Johansson

Claus Johansson 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).

  • Self powered data communication optical fiber cable extender
    Patent number: 6755575
    Abstract: An extender for an electrical data bus including a power line and signal lines has first and second electrical connectors for connection to respective electrical connectors attached to respective electrical data buses. The electrical connectors include a data interface circuit for communication with the electrical bus, an optical transmitter and optical receiver electrically connected to the data interface circuit, and driver circuits for the optical transmitter and optical receivers. The driver circuits obtain power from the power line on the local electrical data bus. An optic fiber is connected between the optical transmitters and receivers at respective first and second electrical connectors to transfer data optically between the first and second electrical connectors and thereby extend the range of the data bus.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: June 29, 2004
    Assignee: Zarlink Semiconductor AB
    Inventors: Bertil Kronlund, Claus Johansson
  • Self powered data communication optical fiber cable extender
    Publication number: 20020044746
    Abstract: An extender for an electrical data bus including a power line and signal lines has first and second electrical connectors for connection to respective electrical connectors attached to respective electrical data buses. The electrical connectors include a data interface circuit for communication with the electrical bus, an optical transmitter and optical receiver electrically connected to the data interface circuit, and driver circuits for the optical transmitter and optical receivers. The driver circuits obtain power from the power line on the local electrical data bus. An optic fiber is connected between the optical transmitters and receivers at respective first and second electrical connectors to transfer data optically between the first and second electrical connectors and thereby extend the range of the data bus.
    Type: Application
    Filed: July 12, 2001
    Publication date: April 18, 2002
    Applicant: Mitel Semiconductor AB
    Inventors: Bertil Kronlund, Claus Johansson