| 摘要 |
<p>A method and apparatus for recording/reproducing an ATV or DVB signal are provided. During recording, normal- and trick-play data are extracted from the signal transmitted with a transport packet structure. The extracted normal-play data is mapped into five sync blocks for every two transport packets and the normal-play data is outer-error-correction-encoded by replacing the trick-play data having an SD-ECC structure with a predetermined pattern data. The extracted trick-play data is then arranged in a video data region having the SD-ECC structure and the trick-play data is outer-error-correction-encoded by replacing the video auxiliary data having the SD-ECC structure with a predetermined pattern data and then mapped into a five-sync-block unit. The outer-error-correction-encoded normal- and trick-play data are rearranged in the video data region having the SD-ECC structure and then inner-error-correction-encoded. During reproducing, the inner-error-correction-encoded normal-and trick-play data are inner-error-correction-decoded, the normal-play data is outer-error-correction-decoded by replacing the trick-play data with the pattern data used for encoding during a normal mode and the inner-error-correction-decoded trick-play data is outer-error-correction-decoded by replacing the video auxiliary data with the pattern data used for encoding during a trick mode, after being arranged in the video data region. Thus, the trick-play data having the SD-ECC structure is, like normal-play data, mapped in the trick-play data region by using five sync blocks as a reference block, so that one ECC circuit is used regardless of mode, to thereby decrease hardware requirements. <IMAGE></p> |
