Method and apparatus for reproducing data, recording medium, and method and apparatus for recording data
First Claim
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1. A method of decoding picture-in-picture video data reproduced from a recording medium, comprising:
- decoding a primary video stream in data reproduced from the recording medium using a first decoder; and
decoding a secondary video stream in the reproduced data using a second decoder, the secondary video stream representing picture-in-picture video data with respect to the primary video stream.
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Abstract
In one embodiment, a primary video stream in data reproduced from the recording medium is decoded using a first decoder, and a secondary video stream in the reproduced data is decoded using a second decoder. The secondary video stream represents picture-in-picture video data with respect to the primary video stream.
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Citations
41 Claims
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1. A method of decoding picture-in-picture video data reproduced from a recording medium, comprising:
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decoding a primary video stream in data reproduced from the recording medium using a first decoder; and
decoding a secondary video stream in the reproduced data using a second decoder, the secondary video stream representing picture-in-picture video data with respect to the primary video stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of decoding picture-in-picture video data, comprising:
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decoding a primary video stream in data reproduced from a recording medium using a first decoder;
receiving the sub path data stream from an external source other than the recording medium;
storing the sub path data stream including at least a secondary video stream, the secondary video stream predetermined to serve as a picture-in-picture data with respect to the primary video stream; and
decoding the secondary video stream using a second decoder.
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18. A method of processing picture-in-picture video data reproduced from a recording medium, comprising:
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separating a primary video stream from a main path data stream reproduced from the recording medium;
supplying the primary video stream to a first decoder;
separating a secondary video stream from one of the main path data stream and a sub path data stream reproduced from the recording medium, the secondary video stream representing picture-in-picture video data with respect to the primary video stream; and
supplying the secondary video stream to a second decoder.
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19. A recording medium having a data structure for managing decoding of picture-in-picture video data stored on the recording medium, comprising:
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a data area storing a primary video stream and a secondary video stream, the secondary video stream representing picture-in-picture video data with respect to the primary video stream; and
a management area storing management information for managing reproduction of the primary and secondary video streams such that the secondary video stream is decoded using a different decoder than a decoder used to decode the primary video stream. - View Dependent Claims (20, 21, 22)
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23. An apparatus for decoding picture-in-picture video data reproduced from a recording medium, comprising:
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a first decoder configured to decode a primary video stream in data reproduced from the recording medium; and
a second decoder configured to decode a secondary video stream in the reproduced data, the secondary video stream representing picture-in-picture video data with respect to the primary video stream. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus for decoding picture-in-picture video data, comprising:
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a first decoder decoding a primary video stream in data reproduced from a recording medium;
a local storage receiving the sub path data stream from an external source other than the recording medium, and storing the sub path data stream including at least a secondary video stream, the secondary video stream predetermined to serve as a picture-in-picture data with respect to the primary video stream; and
a second decoder decoding the secondary video stream - View Dependent Claims (33, 34)
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35. A method of recording picture-in-picture video data on a recording medium, comprising:
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recording a primary video stream and a secondary video stream on the recording medium, the secondary video stream representing picture-in-picture video data with respect to the primary video stream; and
recording management information on the recording medium, the management information for managing reproduction of the primary and secondary video streams such that the secondary video stream is decoded using a different decoder than a decoder used to decode the primary video stream. - View Dependent Claims (36, 37)
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38. An apparatus for recording picture-in-picture video data on a recording medium, comprising:
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a driver configured to drive a recording device to record data on the recording medium;
a controller configured to control the driver to record a primary video stream and a secondary video stream on the recording medium, the secondary video stream representing picture-in-picture video data with respect to the primary video stream; and
the controller configured to record management information on the recording medium, the management information for managing reproduction of the primary and secondary video streams such that the secondary video stream is decoded using a different decoder than a decoder used to decode the primary video stream. - View Dependent Claims (39, 40, 41)
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Specification