Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Patent
1995-06-27
1998-04-07
Edun, Muhammad N.
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
369 47, 369 59, 369 60, G11B 700
Patent
active
057373086
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a recording medium for specified reproduction, such as an optical disc, for recording information thereon for a moving picture, kara-ok, education program and the like, as well as comments, subtitles, voice information in various languages, and for allowing a voice and subtitles (characters) to be selected in any language, and an associated reproduction apparatus.
BACKGROUND ART
Conventionally, a disc for a kara-ok system includes one background image, subtitle information in one language and music information to be played back as recorded information.
In recent years, however, the markets for such a system have spread out world-wide and various demands have also been made for it to be available in different languages. Further, even when kara-ok software is to be exported, it has to be manufactured in its own country's language and much cost is required on the manufacturer's side. There are sometimes cases where a song is practiced repeatedly on the kara-ok system. However, when the reproduction of any given song is started, it has to be played back until the program has ended, so that some inconvenience is involved in the case where a selected phrase is to be practiced repeatedly.
It is accordingly the object of the present invention to provide a recording medium for specified reproduction and a reproduction apparatus which can ensure the easiness with which a particular portion of recorded information on the disc can be played back repeatedly and can provide convenience to a learner.
Another object of the present invention is to provide a recording medium for specified reproduction and a reproduction apparatus which can play back, while picking up, any specified portions of a plurality of programs of recorded information on the disc and which can conduct a program search while under an audiovisual condition.
DISCLOSURE OF THE INVENTION
(A1) In the present invention, a disc includes a managing area recorded as one area of the disc and a data area recorded as the other area, the data area including a plurality of data units, the data units having a block with audio information and the audio information having a flag for representing a given demarcation mark of voice information, and the managing information having address information for the respective data units.
(A2) In the present invention, a disc includes a managing area recorded as one area of the disc and a data area recorded as the other area, the data area having a plurality of programs, each respective program constituting a plurality of data units, the data unit including a block for audio information, and the managing area having address information for the respective data units and search address information for searching each specified portion of the programs.
(A3) A reproduction apparatus of the present invention comprises a pickup means for reading the information from the above-mentioned disc, demodulating means for demodulating an output signal from the pickup means, managing information storing means for storing the managing information which is output from the demodulating means, audio processing means for decoding the above-mentioned audio information which is output from the demodulating means, memory means for storing, as a flag position address by reference to the stored address of the managing information storing means, an address of the data unit being reproduced when the flag of the audio information from the demodulating means is detected, and means for, when a repeat request signal is entered, changing a reproduction position on the disc on the basis of the flag position address.
(A4) Further, a reproduction apparatus of the present invention comprises pickup means for reading the information on the above-mentioned disc, demodulating means for demodulating an output signal from the pickup means, managing information storing means for storing the above-mentioned information which is output from the demodulating means, audio processing means for, when a search request signal
REFERENCES:
patent: 5231239 (1993-07-01), Tsumura et al.
patent: 5359583 (1994-10-01), Jung
patent: 5402398 (1995-03-01), Yoshida
patent: 5410524 (1995-04-01), Takeya
Yoshiaki, "Optical Disk Controller", Patent Abstracts of Japan, Patent No. 3037710.
Kuwabara Mitsutaka
Nakai Masatoshi
Edun Muhammad N.
Kabushiki Kaisha Toshiba
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