Patents Assigned to Nokia GmbH
  • Patent number: 6208445
    Abstract: The invention relates to an apparatus for wireless optical transmission of video and/or audio information, such as television broadcasts or video recordings, with IR radiation radiated into the surrounding free space by an optical transmitter and received by one or more photo receivers. It is the object of the invention to provide means for extending the transmission range of wireless optical transmission systems and for simplifying signal processing, so that television broadcasts or video recordings can be reliably transmitted under ambient light conditions typical in residential buildings while requiring only limited additional circuitry for matching the optical transmission channel and a small number of luminescent diodes.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: March 27, 2001
    Assignee: Nokia GmbH
    Inventor: Gerd Reime