Patents by Inventor Aki Gröhn

Aki Gröhn 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).

  • Distribution of a synchronization signal in an optical communication system
    Patent number: 7248802
    Abstract: The invention relates to the distribution of a synchronization signal in an optical communication system which is inherently asynchronous. In order to accomplish a cost-efficient mechanism for transmitting a synchronization signal in such a system, the amplitude of a payload signal is modulated with the synchronization signal, whereby an amplitude-modulated payload signal is obtained. This amplitude-modulated payload signal is transmitted as an optical signal to the opposite end of an optical link, where the synchronization signal is separated from the payload signal.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: July 24, 2007
    Assignee: Nokia Corporation
    Inventor: Aki Gröhn