Data processing device
AssigneePanasonic Corporation
InventorYasuyuki Kurosawa
Life of this patent
Estimating the term…
Abstract
A data processor that reads and writes data from/on a storage medium. The storage medium has stored thereon a first data stream being represented by a video signal that has been encoded by a first encoding process. The data processor includes: a controller, which acquires first playlist information to manage playback of the first data stream; a stream generating section for generating a second data stream by encoding the video signal by a second encoding process, which is different from the first encoding process; and a management section for producing second playlist information based on the second data stream and the first playlist information so as to manage an order in which the second data stream is played back.
Claims21
A data processor for reading data from and writing data on a storage medium, the storage medium having stored thereon a first data stream being represented by a video signal that has been encoded by a first encoding process,
- the data processor comprising:
- a controller for acquiring first playlist information which is used to manage playback of the first data stream;
- a stream generating section for generating a second data stream by encoding the video signal by a second encoding process, which is different from the first encoding process;
- and
- a management section for producing second playlist information based on the second data stream and the first playlist information so as to manage an order in which the second data stream is played back.
A data processing method for reading data from and writing data on a storage medium, the storage medium having stored thereon a first data stream being represented by a video signal that has been encoded by a first encoding process,
- the method comprising steps of:
- acquiring first playlist information which is used to manage playback of the first data stream;
- generating a second data stream by encoding the video signal by a second encoding process, which is different from the first encoding process;
- and
- producing second playlist information based on the second data stream and the first playlist information so as to manage an order in which the second data stream is played back.
A recording medium having stored thereon a computer program which is executed by a computer in reading data from and writing data on a storage medium,
- the storage medium having stored thereon a first data stream being represented by a video signal that has been encoded by a first encoding process,
- the computer program instructing the computer to execute the processing steps of:
- acquiring first playlist information which is used to manage playback of the first data stream;
- generating a second data stream by encoding the video signal by a second encoding process, which is different from the first encoding process;
- and
- producing second playlist information based on the second data stream and the first playlist information so as to manage an order in which the second data stream is played back.
Dependencies are inferred from the claim text.