Patents by Inventor Stefan Demetrescu

Stefan Demetrescu 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).

  • Patent number: 8681213
    Abstract: Disclosed is a system and method for digitally scanning motion picture film with automatic recovery after a failed splice or break is repaired. The system includes a motion picture film digital scanner. Software executed on a processor either integrated within the motion picture film digital scanner or in an external computer communicating with the motion picture film digital scanner detects film breakage. When an operator signals that the splice repair operation is complete, the software directs the scanner to rewind the film by a pre-determined amount and resume scanning. The software automatically, and seamlessly, merges the scan sequences from before and after the splice repair operation.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: March 25, 2014
    Inventor: Stefan Demetrescu
  • Patent number: 4648045
    Abstract: Disclosed is a high speed memory system having a parallel architecture which is particularly advantageous in controlling a multiline raster scanned display. Data for a plurality of scan lines is processed in parallel, and pixel data for each of a plurality of scan lines is stored in a plurality of memory segments which can be accessed in parallel. Latch means is provided with each memory segment for latching pixel data for scan line control in order to allow continued manipulation of data stored in the memory segment while scan line data is extracted. A plurality of scan line processors are connected to a common bus which provides transformed data of primitives in display coordinates. Each scan line processor controls data for a plurality of scan lines, and a plurality of memory segments are connected with each scan line processor for storing and manipulating pixel data for the plurality of scan lines.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: March 3, 1987
    Assignee: The Board of Trustees of the Leland Standford Jr. University
    Inventor: Stefan Demetrescu