| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a transmitting device, a reconstruction device, a transmitting method and a reconstruction method having good operability for the viewer. <P>SOLUTION: A transmitting device includes: a main image generation unit 21 generating a main image by overlaying first overlay data over an original image; an extraction unit 27 extracting, from the original image, a partial image of a portion over which the first overlay data are overlaid; a first sub-image generation unit 23 generating a first sub-image by overlaying second overlay data over the partial image; and encoding units and a multiplexing unit 37 generating transmitted data by associating the main image and the first sub-image and associating the main image with a broadcast time of the main image. Thus, the present invention provides a transmititng device, a reconstruction device, a transmitting method and a reconstruction method for broadcasts with hidden subtitles, having good operability for the viewer. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
