Patents by Inventor Cornelis J. Kikkert

Cornelis J. Kikkert 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).

  • Amplitude and frequency modulators using a switchable component controlled by data signals
    Patent number: 4320361
    Abstract: A modulated signal source derives its modulation information from digital data held in a data store. The digital data is arranged to operate a switch which in the case of amplitude modulation produces pulses of carrier frequency and in the case of frequency modulation introduces phase transitions into a carrier frequency. The use of the digital data and the switch enables the modulation characteristics of the signal source to be exactly predictable and reproducible and it is not degraded by non-linearities of the kind introduced by conventional mixers.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: March 16, 1982
    Assignee: Marconi Instruments Limited
    Inventor: Cornelis J. Kikkert