Patents by Inventor Stephan Dorsemagen

Stephan Dorsemagen 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 the slow, constant forward or reverse movement of the write/read heads in a cylinder memory
    Patent number: 4151568
    Abstract: A circuit arrangement provides a slow, constant forward or reverse movement of the write/read heads in a cylinder memory and includes a regulating circuit which comprises a track difference register, a digital/analog converter connected to the track difference register, an arrangement for providing a sign for the analog signal, and a function generator for receiving the analog signal. In the digital portion of the regulating circuit one or more of the low-value bits is activated in order to produce a slow, constant speed of the write/read heads.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: April 24, 1979
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stephan Dorsemagen, Hermann Eiting