Method of reproducing from storage medium storing interactive graphics stream activated in response to user's command
First Claim
Patent Images
1. A method of reproducing an interactive graphics stream read from a storage medium by a reproducing apparatus, the method comprising:
- reading an interactive graphics stream from the storage medium;
decoding the read interactive graphics stream;
determining a type of the read interactive graphics stream as a normal interactive graphics stream which is displayed at a designated time or an on-demand interactive graphics stream which is displayed when an activation command is received; and
blending the decoded interactive graphics stream with video data; and
when the decoded interactive graphics stream is the normal interactive graphics stream, outputting, to a display, the decoded interactive graphics stream at the designated andwhen the decoded interactive graphics stream is the on-demand interactive graphics stream, outputting, to a display,the decoded interactive graphics stream when the activation command is received,wherein the activation command corresponding to the on-demand interactive graphics stream is ignored if the activation command is generated after a predetermined time.
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Abstract
A method of reproducing from a storage medium video data and graphics data for displaying a menu screen. The method includes: decoding graphics data; and outputting, on the basis of the decoded graphics data, the decoded graphics data when an activation command is generated by a user or displaying the decoded graphics data at a designated time.
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Citations
17 Claims
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1. A method of reproducing an interactive graphics stream read from a storage medium by a reproducing apparatus, the method comprising:
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reading an interactive graphics stream from the storage medium; decoding the read interactive graphics stream; determining a type of the read interactive graphics stream as a normal interactive graphics stream which is displayed at a designated time or an on-demand interactive graphics stream which is displayed when an activation command is received; and blending the decoded interactive graphics stream with video data; and when the decoded interactive graphics stream is the normal interactive graphics stream, outputting, to a display, the decoded interactive graphics stream at the designated and when the decoded interactive graphics stream is the on-demand interactive graphics stream, outputting, to a display,the decoded interactive graphics stream when the activation command is received, wherein the activation command corresponding to the on-demand interactive graphics stream is ignored if the activation command is generated after a predetermined time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of reproducing an interactive graphics stream read from a storage medium by a reproducing apparatus, the method comprising:
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reading an interactive graphics stream from the storage medium; decoding the read interactive graphics stream; determining a type of the read interactive graphics stream; and blending the decoded interactive graphics stream with video data; and one of outputting, to a display, the decoded interactive graphics stream at a designated time when the decoded interactive graphics stream is a normal interactive graphics stream and outputting, to a display, the decoded interactive graphics stream when an activation command is received when the decoded interactive graphics stream is an on-demand interactive graphics stream; wherein, when the decoded interactive graphics stream is the on-demand interactive graphics stream, the blending includes; reading a disp_flag flag indicating whether the on-demand interactive graphics stream is to be displayed from a player status register; outputting, to a display, when a value of the disp_flag flag is a first value, an initial menu page indicating that the on-demand interactive graphics stream is ready to be activated; outputting, to a display, a menu page according to a user command, when the activation command is received during display of the initial menu page; and ignoring the activation command when the value of the disp_flag flag is a second value different from the first value. - View Dependent Claims (10)
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11. A method of reproducing an interactive graphics stream read from a storage medium by a reproducing apparatus, the method comprising:
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reading an interactive graphics stream from the storage medium; decoding the read interactive graphics stream; determining a type of the read interactive graphics stream; and blending the decoded interactive graphics stream with video data; and one of outputting, to a display, the decoded interactive graphics stream at a designated time when the decoded interactive graphics stream is a normal interactive graphics stream and outputting, to a display, the decoded interactive graphics stream when an activation command is received when the decoded interactive graphics stream is an on-demand interactive graphics stream; wherein the determining of the type of the read interactive graphics stream includes analyzing a segment_type field of an interactive composition segment (ICS). - View Dependent Claims (12, 13)
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14. A method of reproducing an interactive graphics stream read from a storage medium by a reproducing apparatus, the method comprising:
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reading an interactive graphics stream from the storage medium; decoding the read interactive graphics stream; determining a type of the read interactive graphics stream; and blending the decoded interactive graphics stream with video data; and one of outputting, to a display, the decoded interactive graphics stream at a designated time when the decoded interactive graphics stream is a normal interactive graphics stream and outputting, to a display, the decoded interactive graphics stream when an activation command is received when the decoded interactive graphics stream is an on-demand interactive graphics stream; wherein the determining of the type of the read interactive graphics stream includes analyzing a type field included in an interactive composition segment (ICS). - View Dependent Claims (15)
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16. A method of reproducing an interactive graphics stream read from a storage medium by a reproducing apparatus, the method comprising:
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reading an interactive graphics stream from the storage medium; decoding the read interactive graphics stream; determining a type of the read interactive graphics stream, including analyzing a structure of the interactive graphics stream; and blending the decoded interactive graphics stream with video data; and one of outputting, to a display, the decoded interactive graphics stream at a designated time when the decoded interactive graphics stream is a normal interactive graphics stream and outputting, to a display, the decoded interactive graphics stream when an activation command is received when the decoded interactive graphics stream is an on-demand interactive graphics stream; wherein a structure of the normal interactive graphics stream is different from a structure of the on-demand interactive graphics stream; and wherein the structure of the on-demand interactive graphics stream defines first through nth menu pages. - View Dependent Claims (17)
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Specification