Patents by Inventor Arno Rietzke

Arno Rietzke 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).

  • Method of making protected changes to data stored in a database, as well as database system and network element equipped therewith
    Patent number: 6286113
    Abstract: To change data in a database (DB) in such a manner that in case of a disturbance the database can be restored to an initial state, it is proposed to temporarily store the block numbers (BNO) of free memory blocks (BL*) in a nonvolatile semiconductor memory (NVM). In case of a disturbance, the free memory block (BL*) continues to be managed as a free memory block. In case of an undisturbed, successful change to the data, the memory block (BL) in which the old data were stored is deallocated. The invention is particularly suited for use in database systems for network elements of a digital communications network, particularly for crossconnects of an SDH network (SDH=Synchronous Digital Hierarchy).
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: September 4, 2001
    Assignee: Alcatel
    Inventors: Frank Sembach, Arno Rietzke