G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 19/00 (2006.01) G06F 12/14 (2006.01) G11B 19/02 (2006.01) G11B 20/00 (2006.01) G11B 20/10 (2006.01) G11B 20/12 (2006.01) G11B 23/18 (2006.01) G11B 23/28 (2006.01)
Patent
CA 2423537
A data accessing method includes the steps of obtaining a track information entry about a predetermined track from a play order table having a plurality of track information entries, the track information entry pointing to a track descriptor in a track information table; obtaining the track descriptor from the track information table, the track descriptor including a decryption key corresponding to the predetermined track, pointer information that points to a part descriptor of a plurality of part descriptors in a part information table, and name pointer information that points to a name slot entry in a name table having a plurality of name slot entries; reading the name slot entry that corresponds to the name pointer information in the track descriptor; reading the part descriptor that corresponds to the pointer information in the track descriptor; and reading a part of an audio file according to part pointer information in the part descriptor, the part pointer information pointing to at least a part of a file.
Hattori Masato
Kawakami Takashi
Kii Manabu
Ohbi Seiji
Gowling Lafleur Henderson Llp
Sony Corporation
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