Moving picture transmission apparatus, moving picture reception apparatus, and moving picture data record medium
AssigneeMatsushitas Electric Industrial Co., Ltd.
InventorsToshimasa Takaki, Akino Inoue, Toshio Oka
Life of this patent
Estimating the term…
Abstract
In a moving picture data structure having a structure comprising I pictures (intraframe coded image) and P pictures (interframe forward predictive coded image), a P′ picture of a forward predictive coded image of a picture immediately preceding an I picture and the I picture is placed following the I picture. If an error occurs during the I picture transmission, the P′ picture can be used to recover from the error.
Claims10
A moving picture transmission apparatus comprising:
- moving picture data supply means;
- moving picture data acquisition means for acquiring objective moving picture data from said moving picture data supply means;
- and
- data transmission means for transmitting the moving picture data acquired by said moving picture data acquisition means to a transmission line;
- and
- differential data calculation means being placed between said moving picture data supply means and said data transmission means for calculating a P′ picture of a forward predictive coded image of a picture immediately preceding an I picture and the I picture.
A moving picture transmission apparatus comprising:
- moving picture data supply means;
- moving picture data acquisition means for acquiring objective moving picture data from said moving picture data supply means;
- data transmission means for transmitting the moving picture data acquired by said moving picture data acquisition means to a transmission line;
- basic image retention means being placed between said moving picture data supply means and said data transmission means for retaining I pictures;
- and
- differential data calculation means being placed between said moving picture data supply means and said data transmission means for calculating a P″ picture of a forward predictive coded image of an I picture immediately preceding the current I picture and the current I picture.
A moving picture transmission apparatus comprising:
- moving picture data supply means;
- moving picture data acquisition means for acquiring objective moving picture data from said moving picture data supply means;
- data transmission means for transmitting the moving picture data acquired by said moving picture data acquisition means to a transmission line on a first data band;
- and
- differential data transmission means for transmitting redundant data on a second data band.
A moving picture reception apparatus comprising:
- data reception means for receiving moving picture data from a transmission line on a first data band;
- decoding means for decoding the moving picture data received by said data reception means into an image;
- display means for displaying the image provided by said decoding means;
- and
- differential data reception means for receiving redundant data on a second data band.
Dependencies are inferred from the claim text.