Methods and apparatuses for recording information on and reproducing information from a recording medium and the recording medium
a technology of information recording and information, applied in the field of optical disks, can solve the problems of reducing the recording efficiency of a disk, the reduction of the recording area of real data, video and/or audio data,
Inactive Publication Date: 2012-08-28
LG ELECTRONICS INC
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Problems solved by technology
However, if PSI is recorded dispersedly and repeatedly in a data recording area of a disk, the recording area for real data, that is, video and / or audio data is greatly reduced, which causes a decrease in the recording efficiency of a disk.
Since the digital television can not select a data stream to decode into real picture and / or sound until the PSI for the data stream is received, there is inevitably discontinuity in video and / or audio or blank screen for a duration of time.
Method used
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[0034]In order that the invention may be fully understood, preferred embodiments thereof will now be described with reference to the accompanying drawings.In order that the invention may be fully understood, exemplary embodiments thereof will now be described with reference to the accompanying drawings.
[0035]FIG. 4 is a partial block diagram of a disk device, which a PSI-recording method according to the present invention is applied to, for recording data in a high density disk.
[0036]The disk device of FIG. 4 comprises a PSI separator 21 separating PSI contained in the received broadcast signal; a signal processor 22 processing the received digital broadcast signal, which the PSI is separated from, into a digital stream compatible with a recording format; a PSI processor 23 processing the separated PSI into a digital stream compatible with a recording format; a signal selector 24 selecting one of either the broadcast digital stream and the PSI stream; a pickup 27 writing the stream ...
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The present invention relates to method for recording program specific information (PSI) for a recorded data stream in an optical disk such as a high-density digital versatile disk (HD-DVD) and providing the recorded PSI to a presenting device such as a digital television. This method writes program or stream specific information in a management data recording area of a high-density disk, and when the recorded data stream is reproduced, determines whether it is time to send the stream specific information, obtains stream specific information corresponding to a stream object being reproduced, or to be reproduced based on the determination result, and transmits the obtained stream specific information. This method can maintain the disk storage capacity for real video and / or audio data by recording stream specific information in a management recording area of a high-density disk, and provide the stream specific information to a digital television promptly when it is necessary, thereby reducing the time duration of blank screen or discontinuity in video and / or audio presentation.The methods and apparatuses record information on or reproduce information from a recording medium. The information includes at least video information and presentation control information for managing presentation of the video information. The presentation control information includes change information for the video information, and the change information indicates a point in the video information where at least a portion of the presentation control information for the video information changes.
Description
DIVISIONAL REISSUE APPLICATIONS[0001]Notice: A reissue application has been filed previously for the reissue of U.S. Pat. No. 6,473,379. The previously filed reissue application is application Ser. No. 10 / 973,099.DOMESTIC PRIORITY INFORMATION[0002]This is a direct divisional of application Ser. No. 10 / 973,099, filed Oct. 26, 2004 now U.S. Pat. No. Re. 41,090; the entire contents of which are hereby incorporated by reference.BACKGROUND OF THE INVENTION[0003]1. Field of the Invention[0004]The present invention relates to an optical disk and method for recording program or stream specific information (PSI or SSI) for recorded data stream in an optical disk such as a high-density digital versatile disk (HD-DVD) and providing the recorded PSI or SSI to a presenting device such as a digital television.The present invention relates to methods for recording and reproducing presentation control information from a recording medium such as an optical disc (e.g., an HD-DVD), and also to apparat...
Claims
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IPC IPC(8): G11B7/00H04N5/85G11B7/007H04N5/775H04N9/804H04N9/82
CPCG11B7/007H04N5/775H04N5/85H04N9/8042H04N9/8205
InventorKIM, BYUNG-JINSEO, KANG-SOOYOO, JEA-YONG
OwnerLG ELECTRONICS INC