Patents by Inventor Helmuth-Joachim Bock

Helmuth-Joachim Bock 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).

  • Circuit arrangement for telephone exchange installations with central control means and a plurality of individual apparatuses having a common information communication line connecting the individual apparatus to the central control means
    Patent number: 3940568
    Abstract: A circuit arrangement for long distance telephone communication installations having a central apparatus comprising a central control unit and individual apparatus of different types; for example, internal connection sets, long distance line repeaters, exchange office repeaters in subscriber installations with extension stations, registers, dial receivers and the like. Correspondingly different information, for example dial impulse series, control criteria and the like are exchanged between the central control unit and the individual apparatus. Messages of different information content are transmitted by the same information signals by means of address information added to said signals. The address identifies a specific type of individual apparatus, and the evaluation of that address provides the correct interpretation of the information.
    Type: Grant
    Filed: February 3, 1971
    Date of Patent: February 24, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Rutkowski, Helmuth-Joachim Bock, Peter Gerke