Patents Represented by Attorney Mitchell A. Felfe & Lynch Stein
  • Patent number: 5500575
    Abstract: A switchmode AC power controller for controlling the current through a load such as a large lamp array connected to an alternating current source. The controller contains an AC solid state switch, a synchro-flywheel, an output inductor and capacitor. The load current is controlled by triggering signals generated by a synchronized modulator.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: March 19, 1996
    Assignee: Lighting Control, Inc.
    Inventor: Adrian Ionescu
  • Patent number: 5497486
    Abstract: The semantic integration problem for merging multiple databases of very large size, the merge/purge problem, can be solved by multiple runs of the sorted neighborhood method or the clustering method with small windows followed by the computation of the transitive closure over the results of each run. The sorted neighborhood method works well under this scheme but is computationally expensive due to the sorting phase. An alternative method based on data clustering that reduces the complexity to linear time making multiple runs followed by transitive closure feasible and efficient.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: March 5, 1996
    Assignee: Salvatore J. Stolfo
    Inventors: Salvatore J. Stolfo, Mauricio A. Herna/ ndez