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US 7,742,678 B2Granted
Encoded signal characteristic point processing apparatus
AssigneeSony Corporation
InventorsYasushi Fujinami, Toshiya Hamada
Life of this patent
Estimating the term…
Abstract
A characteristic point detection circuit detects a characteristic point from a base band video signal and generates a characteristic point file. A compressed video signal received from the digital satellite broadcast is supplied to a multiplexing circuit as it is in the form of a bit stream. The multiplexing circuit multiplexes the compressed video signal and characteristic point file. A control circuit obtains the characteristic point file from an optical disc during reproduction, and controls reproduction of the compressed video signal. As described herein above, the supplied compressed video signal is recorded in a recording medium without deterioration of the image quality, and the recorded video signal accepts random access.
Claims26
A processing apparatus, comprising:
- an encoder configured to encode video and/or audio signals to generate stream files;
- a processor configured to generate characteristic point information including a number of streams used by a program, identification information of each stream, attribute information of each stream corresponding to each identification information, and slot information of each stream, a format of the slot information within the characteristic point information corresponding to a stream type, the characteristic point information being included in a separate program information file corresponding to each stream file and being used to access characteristic points when reproducing the stream files;
- and
- a recording unit configured to record the stream files and corresponding program information files containing the characteristic point information separately on different areas of a recording medium, all of the stream files being recorded in a first area of the recording medium and all of the program information files being recorded in a second area of the recording medium.
1 more element
A processing method, comprising the steps of:
- encoding video and audio signals to generate stream files;
- generating characteristic point information for the video or audio signals contained in each stream file, the characteristic point information including a number of streams used by a program, identification information of each stream, attribute information of each stream corresponding to each identification information, and slot information of each stream, a format of the slot information within the characteristic point information corresponding to a stream type, the characteristic point information being included in a separate program information file corresponding to each stream file and being used to access characteristic points when reproducing the stream files;
- and
- recording the stream files and corresponding program information files containing the characteristic point information separately on different areas of a recording medium, all of the stream files being recorded in a first area of the recording medium and all of the program information files being recorded in a second area of the recording medium.
1 more element
A non-transitory computer-readable medium storing a computer program, which when executed by a computer, causes the computer to perform a processing method, comprising:
- encoding video and audio signals to generate stream files;
- generating characteristic point information for the video or audio signals contained in each stream file, the characteristic point information including a number of streams used by a program, identification information of each stream, attribute information of each stream corresponding to each identification information, and slot information of each stream, a format of the slot information within the characteristic point information corresponding to a stream type, the characteristic point information being included in a separate program information file corresponding to each stream file and being used to access characteristic points when reproducing the stream files;
- and
- recording the stream files and corresponding program information files containing the characteristic point information separately on different areas of a recording medium, all of the stream files being recorded in a first area of the recording medium and all of the program information files being recorded in a second area of the recording medium.
1 more element
A processing apparatus, comprising:
- a reproducing unit configured to reproduce stream files containing video and/or audio signals and corresponding program information files separately recorded on different areas of a recording medium, all of the stream files being recorded in a first area of the recording medium and all of the program information files being recorded in a second area of the recording medium;
- a processor configured to generate characteristic point information from the program information file corresponding to each stream, the characteristic point information including a number of streams used by a program, identification information of each stream, attribute information of each stream corresponding to each identification information, and slot information of each stream, a format of the slot information within the characteristic point information corresponding to a stream type, the characteristic point information being correlated with respective positions of the characteristic point information;
- and
- a controller configured to control reproduction of said stream files based on the characteristic point information reproduced from the corresponding program information files.
1 more element
A processing method, comprising the steps of:
- reproducing stream files containing video and/or audio signals and corresponding program information files separately recorded on different areas of a recording medium, all of the stream files being recorded in a first area of the recording medium and all of the program information files being recorded in a second area of the recording medium;
- generating characteristic point information from the program information file corresponding to each stream, the characteristic point information including a number of streams used by a program, identification information of each stream, attribute information of each stream corresponding to each identification information, and slot information of each stream, a format of the slot information within the characteristic point information corresponding to a stream type, the characteristic point information being correlated with respective positions of the characteristic point information;
- and
- controlling reproduction of said stream files based on the characteristic point information reproduced from the corresponding program information files.
1 more element
A non-transitory computer-readable medium storing a computer program, which when executed by a computer, causes the computer to perform a processing method, comprising:
- reproducing stream files containing video and/or audio signals and corresponding program information files separately recorded on different areas of a recording medium, all of the stream files being recorded in a first area of the recording medium and all of the program information files being recorded in a second area of the recording medium;
- generating characteristic point information from the program information file corresponding to each stream, the characteristic point information including a number of streams used by a program, identification information of each stream, attribute information of each stream corresponding to each identification information, and slot information of each stream, a format of the slot information within the characteristic point information corresponding to a stream type;
- and
- controlling reproduction of said stream files based on the characteristic point information reproduced from the corresponding program information files.
1 more element
Dependencies are inferred from the claim text.