Patent EP0755161A2 successfully refreshed from Google Patents.
EP0755161A2
Expired / Lapsed
EP
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Encoding and decoding data, and data searching
Assignee: Sony Corp
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Filing: 1996-07-16
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Granted: —
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Expires: 2016-07-16
Abstract
Abstract Multiple data stream searching is achieved by encoding a video broadcast into multiple types of data streams including video, audio and subtitle data. Addresses are generated for each of the data streams pointing to a position of the data stream to be stored on a record medium. These addresses are stored in areas of the record medium reserved by type of data stream Such that location of any event represented by data in a data stream can be achieved by locating the data streams at the same type as that of the data to be located. A computer-readable memory directs a computer to store these addresses and to decode data streams at these addresses which correspond to the type of data stream to be searched. The data streams which are of the type to be searched are decoded and the event to be searched is found in these decoded data streams.
Inventors
- 👤 Ikuo c/o Intell. Prop. Tsukagoshi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 16:34
CPC Classifications
G; G09; G09B; G09B5/00; G09B5/06; G09B5/065; G11; G11B; G11B20/00; G11B20/10; G11B27/00; G11B27/02; G11B27/031; G11B27/034; G11B27/10; G11B27/102; G11B27/105; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3063; G11B27/32; G11B27/327; G11B27/329; H; H04; H04N; H04N21/00; H04N21/40; H04N21/41; H04N21/426; H04N7/00; H04N7/08; H04N7/087; H04N7/088; H04N7/0884; H04N7/0885; H04N9/00; H04N9/79; H04N9/80; H04N9/82; H04N9/8205; H04N9/8227; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2545; H04N21/47; H04N21/488; H04N21/4884; H04N5/00; H04N5/44; H04N5/445; H04N5/76; H04N5/78; H04N5/782; H04N5/783; H04N9/804; H04N9/8042; H04N9/87
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
162 words
An encoding apparatus for encoding data streams of multiple types including video, audio and subtitle types of data streams, onto a record medium, a sequence of the data streams for each type constituting a respective video, audio and subtitle signal which combine into a video broadcast, said encoding apparatus comprising: encoding means for encoding the video broadcast into data streams of multiple types to be recorded on the record medium; address generating means for generating addresses for each of the data streams pointing to a position where the respective data stream is recorded on the record medium; and address storing means for storing said addresses generated by said address generating means, according to the type of data stream to which they point, in areas of the record medium reserved by type of data stream, wherein, an event represented by data in the data streams can be located by accessing the data streams of the same type as the data to be located.
Claim 2
Dependent Claim
120 words
The encoding apparatus of claim 1, wherein subtitles are generated from the recorded data streams to be displayed exclusively during a trick data playback mode, wherein said encoding means encodes said subtitles exclusively generated for trick mode as data streams on said record medium, wherein said address generating means generates addresses for said subtitles exclusively generated for trick mode, and wherein said address storing means stores the addresses of the subtitles exclusively generated for trick mode at a position on the record medium indicating that the addresses are of the subtitle type exclusively generated for trick mode such that said event represented by data can be located by accessing said data streams of said subtitles exclusively generated for trick mode.
Claim 3
Dependent Claim
48 words
The encoding apparatus of claim 2, wherein the address storing means further comprise table of contents means for storing the addresses in a table according to the type of recorded data stream in an area of the record medium preceding an area where the data streams are stored.
Claim 4
Dependent Claim
39 words
The encoding apparatus of claim 2, wherein the address storing means further comprise stream map means for storing the addresses according to the type of recorded data stream in a packet of data streams recorded on the recording medium.
Claim 5
Dependent Claim
56 words
The encoding apparatus of claim 2, wherein the address storing means further comprise means for storing, in each of the data streams of the subtitles exclusively generated for trick mode, a next address of the following data stream and a previous address of the preceding data stream in the sequence for the data stream of subtitles.
Claim 6
Dependent Claim
151 words
An encoding method for encoding data streams of multiple types, including video, audio and subtitle types of data streams, onto a record medium, a sequence of the data streams for each type constituting a respective video, audio and subtitle signal which combine into a video broadcast, said encoding apparatus comprising: encoding the video broadcast into data streams of multiple types to be recorded on the record medium; generating addresses for each of the data streams pointing to a position where the respective data stream is recorded on the record medium; and storing said addresses generated by said address generating means, according to the type of data stream to which they point, in areas of the record medium reserved by type of data stream, wherein, an event represented by data in the data streams can be located by accessing the data streams of the same type as the data to be located.
Claim 7
Dependent Claim
111 words
The encoding method of claim 6, wherein subtitles are generated from the from recorded data streams to be displayed exclusively during a trick mode; and further comprising the steps of: encoding said subtitles exclusively generated for trick mode as data streams on said record medium, generating addresses for said subtitles exclusively generated for trick mode, and storing the addresses of the subtitles exclusively generated for trick mode at a position on the record medium indicating that the addresses are of the subtitle type exclusively generated for trick mode such that said event represented by data can be located by accessing said data streams of said subtitles exclusively generated for trick mode.
Claim 8
Dependent Claim
54 words
The encoding method of claim 7, wherein the step of storing the addresses of the subtitles exclusively generated for trick mode comprises storing the addresses in a table of contents according to the type of recorded data stream into an area of the record medium preceding an area where the data streams are stored.
Claim 9
Dependent Claim
46 words
The encoding method of claim 7, wherein the step of storing the addresses of the subtitles exclusively generated for trick mode further comprises the step of grouping the addresses according to the type of data stream in a packet of data streams on the recording medium.
Claim 10
Dependent Claim
67 words
The encoding method of claim 7, wherein the step of storing the addresses of the subtitles exclusively generated for trick mode further comprises the step of storing, in each of the data streams of the subtitles exclusively generated for trick mode, a next address of the following data stream and a previous address of the preceding data stream in the sequence for the data stream of subtitles.
Claim 11
Dependent Claim
130 words
A computer-readable memory for directing a computer to search for data representing an event in a video broadcast stored in a data stream among data streams of multiple types including video, audio and subtitle types of data streams, on a record medium, a sequence of the data streams for each type constituting a respective video, audio and subtitle signal which combine into a video broadcast, comprising: storing means for storing addresses pointing to said data streams of multiple types, wherein said storing means stores said addresses in groups indicative of the type of stored data stream; and subtitle data pointing means for directing said computer during said search to sequentially decode said data streams positioned at addresses pointing to a subtitle type of data stream exclusively displayed during said search.
Claim 12
Dependent Claim
30 words
The computer-readable memory according to claim 11, wherein said storing means further comprise table of contents means for storing said addresses in a table arranged by the type of data.
Claim 13
Dependent Claim
33 words
The computer-readable memory according to claim 11, wherein said storing means further comprise stream map means for storing the addresses by the type of data stream in a packet on the recording medium.
Claim 14
Dependent Claim
56 words
The computer-readable memory according to claim 11, wherein the storing means further comprise means for storing, in each of the data streams of the subtitles exclusively displayed during said search, a next address of the following data stream and a previous address of the preceding data stream in the sequence for the data stream of subtitles.
Claim 15
Dependent Claim
120 words
A decoding apparatus for decoding data streams of multiple types, including video, audio and subtitle types of data streams reproduced from a record medium, a sequence of the data streams, for each type constituting a respective video, audio and subtitle signal which are combined into a video broadcast, said decoding apparatus comprising: decoding means for decoding the multiple types of data streams reproduced from the record medium; and control means for controlling said decoding means to decode data streams of the subtitle type which are to be displayed exclusively during a search, such that any event represented by data in the data streams is locatable by accessing the data streams of the same type as the data to be searched.
Claim 16
Dependent Claim
56 words
The decoding apparatus of claim 15 wherein the control means comprises means for reproducing a table of contents recorded on the record medium at a position preceding the data streams recorded thereon, said table of contents including addresses of the data streams of the subtitle data type which are to be displayed exclusively during said search.
Claim 17
Dependent Claim
52 words
The decoding apparatus of claim 15 wherein the control means comprises means for reproducing a stream map from a packet of the data streams recorded on the record medium, said stream map including addresses of the data streams of the subtitle data type which are to be displayed exclusively during said search.
Claim 18
Dependent Claim
61 words
The decoding apparatus of claim 15 wherein the decoding means decodes data streams reproduced from addresses of the record medium and comprises means for reproducing from the record medium a next address of the following data stream and a preceding address of the previous data stream of the sequence in each data stream is to be displayed exclusively during said search.
Claim 19
Dependent Claim
116 words
A decoding method for decoding data streams of multiple types, including video, audio and subtitle types of data streams, reproduced from a record medium, a sequence of the data streams for each type constituting a respective video, audio and subtitle signal which are combined into a video broadcast, said decoding method comprising the steps of: decoding the multiple types of data streams reproduced from the record medium; and controlling said decoding to decode data streams of the subtitle type which are to be displayed exclusively during a search, such that any event represented by data in the data streams is locatable by accessing the data streams of the same type as the data to be searched.
Claim 20
Dependent Claim
56 words
The method of claim 19 wherein the controlling step comprises the step of reproducing a table of contents recorded on the record medium at a position preceding the data streams recorded thereon, said table of contents including addresses of the data streams of the subtitle data type which are to be displayed exclusively during said search.
Claim 21
Dependent Claim
52 words
The method of claim 19 wherein the controlling step comprises the step of reproducing a stream map from a packet of the data streams stored on the record medium, said stream map including addresses of the data streams of the subtitle data type which are to be displayed exclusively during said search.
Claim 22
Dependent Claim
63 words
The method of claim 19 wherein the decoding step decodes data streams reproduced from addresses of the record medium and comprises the step of reproducing from the record medium a next address of the following data stream in the sequence and a preceding address of the previous data stream in the sequence in each data stream to be displayed exclusively during said search.
References Cited (Backward Citations)
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