Video signal processing device
OwnerTatsuo Kosakoinventor
Life of this patent
Estimating the term…
Abstract
A sub picture buffer (7) temporarily stores top field sub picture data and bottom field sub picture data which have been subjected to the run length compression. A sub picture magnifying/demagnifying unit (8) subjects the sub picture data to a display magnification process accompanied by the interpolation of line data. A sub picture output buffer (9) temporarily stores the sub picture data which has been subjected to the display magnification process. A video buffer (5) temporarily stores video packet data. A video decoding unit (10) decodes the video packet data and the sub picture data which has been subjected to the display magnification process, and combines the decoded video packet data with the decoded sub picture data and outputs the combined data thus obtained.
Claims9
A video signal processing device comprising:
- a sub picture buffer for temporarily storing top field sub picture data and bottom field sub picture data which has been subjected to run length compression;
- a sub picture magnifying/demagnifying unit for subjecting sub picture data read from the sub picture buffer to a display magnification process accompanied by the interpolation of line data;
- a sub picture output buffer for temporarily storing the sub picture data for which the display magnification ratio conversion process is implemented by the sub picture magnifying/demagnifying unit;
- a video buffer for temporarily storing video packet data;
- and
- a video decoding unit for decoding video packet data read from the video buffer and sub picture data for which the display magnification process is implemented an which is read from the sub picture output buffer, the video decoding unit further combining the decoded sub picture data with the decoded video packet data and outputting combined data thereby obtained.
Dependencies are inferred from the claim text.