Patents by Inventor Claude Buchholtzer

Claude Buchholtzer 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).

  • Channel board for telephony transmission equipment using single side band multiplexing
    Patent number: 4001511
    Abstract: A channel board which simplifies wiring.Each channel board 30-31 comprises its own controlled carrier current generator for the formation of primary groups, and preferably also for the direct formation of the secondary groups from pre-modulated channels. The requisite carrier current is obtained by controlling the value of the divisor N in the frequency divider contained in the feedback loop. The control of N is effected for example simply by inserting the channel board into its location or by providing in addition with a selector plug, or by means of loaded shift registers.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: January 4, 1977
    Assignee: Thomson-CSF
    Inventors: Claude Buchholtzer, Pierre Deman, Michel Drobecq, Pierre Oger