Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal gain processing
Patent
1996-07-30
1997-06-24
Edun, Muhammad N.
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal gain processing
369 60, 369 48, 360 48, 360 44, 386 1, G11B 700
Patent
active
056423381
ABSTRACT:
The data recording/reproducing apparatus of the present invention efficiently performs a trickplay mode operation such as fast forward reproducing and rewind reproducing and a postrecording operation by using a data recording medium storing a variable-bitrate-compressed video data. Each AV file in the video data includes chapter data and first and second pointer data. Each GOP data in the chapter data includes one independent picture data and a plurality of dependent picture data. The first pointer data includes the location data of the independent picture data, and the second pointer data includes the location data of the first pointer data. Further, each GOP data includes an audio data interleaved with the picture data. The first pointer data includes the location data of the corresponding audio data, and the second pointer data includes the location data of the corresponding first pointer data. A hierarchical location data for retrieving the independent picture data and/or the audio data is formed by the first and second pointers.
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Azumatani Yasushi
Fukushima Yoshihisa
Hamasaka Hiroshi
Inagaki Masahiro
Edun Muhammad N.
Matsushita Electric - Industrial Co., Ltd.
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