TW335487B - A method and an apparatus for interleaving bitstream to record thereof on a recording medium, and reproducing the interleaved bitstream therefrom - Google Patents

Abstract

A method of producing bitstream, which is stored in an optic disc to be reappeared by means of an optic disc reappearance device, which includes a track buffer, for temporary saving in said track buffer, before the read out data is transferred to the decoder, at a read-out rate Vr from the optic disc to the track bufer, higher than the supply rate Vo from the track buffer to the decoder, said bitstream having a plurality of VOBs selected from m, said bitstream generation method including the following steps: selection of said m audio frequency articles having the same reappearance time; division of the selected m VOBs into v ILVUij, being I series from 1 to m and j series from 1 to v and in the following configuration, the optic pickup head of the optic disc reappearance device skips the bitstream between the ILVUij and the ILVUm(j+1), thus, for the interruption time t2 of the optic disc readout bitstream; during bitstream time t2 of reading from the optic disc of ILVUij, by means of Vr-Vo difference, for obtaiing data volume d1 stored in the track buffer; division of the m VOBs into ILVUij, for the data volume d1 stored in the buffer, be over that of the feeding rate Vo of data volume d2 fro the track buffer to the decoder; and interleaving based on said configuration, the m VOBs for generation of configured bitstream.