Patents by Inventor Jorg Oppat

Jorg Oppat 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).

  • Parallel interface for connecting data processing devices to one another over bidirectional control lines
    Patent number: 5555440
    Abstract: A parallel interface for connecting data processing devices to one another or to peripheral devices, particularly a personal computer to a printer, has at least two status information lines, disconnectable line drivers and control lines (SLCT, SLCTIN), the beginning of the data transmission being signaled by the transmitting device on a first control line (STBN) for a predetermined data transmission direction and the end of the data transmission being signaled by the receiving device on a second control line (ACKN). To implement a bidirectional interface with high transmission speed, the two status information lines (SLCT, SLCTIN) are used for disconnecting the line drivers of the device receiving in each case, in order to change over the direction of data transmission.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: September 10, 1996
    Assignee: Siemens Nixdorf Informationssysteme Aktiengesellschaft
    Inventor: Jorg Oppat