Patents by Inventor Erwin Papelitzky

Erwin Papelitzky 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).

  • Microprocessor with protective device which maintains a clock speed of the CPU below a threshold during programming of EEPROM
    Patent number: 5600792
    Abstract: A microprocessor includes a central control unit and a memory of the EEPROM type for use in security-related systems. A protective device assures that a clock speed or frequency of the central control unit will not exceed a limit value at which reading of the memory is reliably assured, during a reading operation in the EEPROM memory.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: February 4, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Pockrandt, Heinz Schuetzeneder, Erwin Papelitzky