Patents by Inventor Mihaela Van De Schaar-Mitrea

Mihaela Van De Schaar-Mitrea 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: 6175386
    Abstract: Field or frame memories are often used in television receivers for video signal processing functions, such as noise reduction and/or flicker reduction. Television receivers also have graphic features such as teletext, menu-driven control systems, multilingual subtitling, an electronic TV-Guide, etc. In a method of processing television picture signals including both video (VID) and graphic (GFX) information, the video and graphic signals are individually compressed in accordance with different (lossy and loss-less, respectively) compression algorithms (22;24), stored in the same field or frame memory (21), and decompressed (23;25) after processing (20). As such, a significant reduction of memory capacity is achieved without adversely affecting the graphics quality. The method is not only applicable to locally generated graphic signals (TXT,OSD) but also to graphic information which is detected (26) as being embedded in a received television signal.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: January 16, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Mihaela Van De Schaar-Mitrea, Peter H. N. De With