Patent ID: 6081649
Filing Date: 2000-06-27
Classification: G11B,H04N

Abstract:
An apparatus for recording a bit stream in a recording medium without further modification and replaying the bit stream, comprising:replay means for replaying the bit stream from the recording medium;detecting means for detecting intra-picture data in the bit stream being replayed from tracks in the recording medium;extracting means for extracting the intra-picture data from the bit stream based on output from the detecting means;replay mode designating means for designating one of a normal replay mode and a slow replay mode as a replay mode, the slow replay mode being replay at a speed slower than the normal replay mode; andreplay data outputting means for storing the extracted intra-picture data, and outputting only the entire extracted intra-picture data as replay picture data when the slow replay mode is designated,wherein said replay means includes a reading head;said apparatus further comprisingcontrol means for causing relative movement between said recording medium and said reading head in a forward direction and in a backward direction;said replay means replaying the bit stream while said control means causes the relative movement in said forward direction, andsaid control means causing the relative movement in said backward direction a predetermined amount after extracting the intra-picture data for a first time.