Patent ID: 6865431
Filing Date: 2005-03-08
Classification: G06F,G11C,H04N

Abstract:
1. A semiconductor memory card comprising: a plurality of audio objects composing an audio track; and a plurality of pieces of management information in a one-to-one relation with the audio objects; wherein each piece of management information includes a time search map and attribute information, wherein each time search map includes a plurality of pieces of entry information showing internal positions within a corresponding audio object at predetermined intervals, wherein each piece of attribute information shows that a corresponding audio object is (a) an entire audio track, (b) a first part of an audio track, (c) a middle part of an audio track, or (d) an end part of an audio track, and wherein each audio object is restricted to such a playback time that a number of pieces of entry information for a corresponding audio object does not exceed a predetermined number.