Patents by Inventor John K. Martnelli

John K. Martnelli 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).

  • Infrared communications scheme
    Patent number: 5982519
    Abstract: Infrared communications scheme for an infrared transmitting device having a light emitting diode (LED) ramps up the power of a carrier frequency signal applied to the LED in a given time interval to a given value. The carrier frequency signal is then frequency modulated with a data message for transmission by the LED. The power of a DC signal applied to the LED may then be ramped up in a given time interval to a given value before the carrier frequency signal is modulated with a data message. After transmission of the data message, the power of the carrier frequency signal applied to the LED is ramped down in a given time interval to a given value. The power of the DC signal applied to the LED is then ramped down in a given time interval to a given value.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: November 9, 1999
    Assignee: Interlink Electronics, Inc.
    Inventors: John K. Martnelli, Wendell W. Ritchey, Leslie J. Reading
  • Infrared communications scheme
    Patent number: 5907419
    Abstract: Infrared communications scheme for an infrared transmitting device having a light emitting diode (LED) ramps up the power of a carrier frequency signal applied to the LED in a given time interval to a given value. The carrier frequency signal is then frequency modulated with a data message for transmission by the LED. The power of a DC signal applied to the LED may then be ramped up in a given time interval to a given value before the carrier frequency signal is modulated with a data message. After transmission of the data message, the power of the carrier frequency signal applied to the LED is ramped down in a given time interval to a given value. The power of the DC signal applied to the LED is then ramped down in a given time interval to a given value.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: May 25, 1999
    Assignee: Interlink Electronics, Inc.
    Inventors: John K. Martnelli, Wendell W. Ritchey, Leslie J. Reading