WO2002047378A1 - Dispositif de selection et d'execution d'intergiciels de reproduction d'images animees - Google Patents
Dispositif de selection et d'execution d'intergiciels de reproduction d'images animees Download PDFInfo
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- WO2002047378A1 WO2002047378A1 PCT/JP2001/007932 JP0107932W WO0247378A1 WO 2002047378 A1 WO2002047378 A1 WO 2002047378A1 JP 0107932 W JP0107932 W JP 0107932W WO 0247378 A1 WO0247378 A1 WO 0247378A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4433—Implementing client middleware, e.g. Multimedia Home Platform [MHP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4335—Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4437—Implementing a Virtual Machine [VM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/4508—Management of client data or end-user data
- H04N21/4516—Management of client data or end-user data involving client characteristics, e.g. Set-Top-Box type, software version or amount of memory available
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/454—Content or additional data filtering, e.g. blocking advertisements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8166—Monomedia components thereof involving executable data, e.g. software
- H04N21/8193—Monomedia components thereof involving executable data, e.g. software dedicated tools, e.g. video decoder software or IPMP tool
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8543—Content authoring using a description language, e.g. Multimedia and Hypermedia information coding Expert Group [MHEG], eXtensible Markup Language [XML]
Definitions
- the present invention relates to a moving image reproducing apparatus for reproducing a moving image stream, and more particularly, to a moving image stream including a program, and receiving the moving image stream on a middleware. It is used for a video playback device that plays back a video by running a program, and operates the program by executing middleware that is compatible with the program.
- the present invention relates to a middleware execution device for a video playback device that enables the playback. Background art
- MHP ETSITS 10 18 1 2 VI. 1.1 (200 00-07) D igita 1 Video B roadcasting (DVB); M There are specifications such as3,dia Home Platform (MHP) Specification 1.0).
- the video stream includes a program, and the video playback device runs this program to play the video.
- Middleware is required.
- Middleware for BS digital for example, there is a BML browser, and as a middleware for DVB-MHP, there is, for example, a Java virtual machine (hereinafter, Java VM).
- a program in a video stream based on the BS digital specification operates on a BML browser, and does not operate on a JavaVM.
- a program in a video stream based on the DVB-MHP specification runs on JAVAVM and does not run on a BML browser.
- a video playback device for Japan incorporates a BML browser as middleware, and handles only a video stream of the BS digital specification.
- a video playback device for Europe has a built-in JAVA VM and handles only a video stream of the DVB-MHP specification.
- the necessary middleware is newly added and multiple middleware can be executed simultaneously to meet multiple specifications. It may be possible to make the video stream based on it playable. However, to do this, the video playback device may have enough resources in advance to execute all the middleware including the newly installed middleware at the same time. Or you need to add the shortfall resources. Therefore, in this case as well, as the number of specifications increases, the cost of the apparatus remains unchanged. Disclosure of the invention
- the program can be operated.
- An inexpensive middleware selection execution device for movie playback (the price hardly increases even if the number of specifications increases) is realized. That is.
- the present invention has the following features in order to solve the above problems.
- a video stream including a video stream, a program, and program identification information transmitted from a broadcasting station is received. It is used for a moving picture playback device that plays back a moving picture by processing the moving picture data by running the program on the middleware based on the identification information.
- a middleware selection / execution device for video playback which makes the program operable by selectively executing a suitable middleware,
- a middleware storage means for storing a plurality of different middleware
- Reading means for reading the middleware selected by the selection means from the middleware storage means
- Execution means for executing the middleware read by the reading means is provided.
- a moving image playback middleware selection execution device stores a plurality of middlewares within itself.
- a middleware selection execution device stores a plurality of middlewares within itself.
- a video stream is sent from a broadcasting station, multiple media stored by itself are stored. Select and execute the middleware that matches the program included in the video stream from among the firmware. For this reason, video playback devices receive video streams of various specifications, including programs that operate on different middleware, and play back the video. And can be done.
- receiving a video stream of various specifications and making the video playable as described above requires that each video stream has only one specification. This can be achieved by integrating multiple video playback devices that receive and play back, or by adding a new source to the video playback device and executing multiple middleware simultaneously. It is. However, in such a method, if an attempt is made to increase the number of specifications of a reproducible moving picture stream, the device becomes expensive in proportion to the number of specifications. On the other hand, in the case of this middleware selection execution device, it is sufficient if there is a resource that executes only one middleware regardless of the number of specifications. However, even if the number of specifications increases, the price hardly increases.
- the second phase is the first phase
- the reading means can read the middleware from an external server via a network. It is characterized by reading.
- the middleware selection execution device has a middleware that is compatible with the program included in the transmitted video stream. If not, read the middleware from an external server via the network and execute it. Use the middleware on the network in this way This makes it possible to dramatically increase the number of playable video stream specifications.
- the third phase is the second phase
- the middleware read from the external server via the network is additionally stored in the middleware storage means,
- the middleware is read from the middleware storage means.
- the middleware selection execution device stores the middleware read and executed from outside, inside itself. And when the middleware is needed again, it reads and executes the middleware inside itself, so it takes time to read. As a result, the moving image reproducing apparatus can start moving image reproduction quickly.
- the fourth phase is the first phase
- the middleware selection execution device when a new middleware is provided from the broadcast station, the middleware selection execution device additionally stores the middleware within itself. As a result, it is possible to increase the number of specifications of a moving image stream that can be reproduced by the moving image reproducing device through broadcasting. '
- the fifth phase is the fourth phase
- Broadcasters provide middleware and professional middleware An operation stream containing the program and the program identification information is further transmitted, and
- the video playback device receives the operation stream, and, based on the program identification information, the middleware on the middleware that is compatible with the middleware addition program. (A) By operating an additional program, an additional means is realized.
- the middleware a program for adding the middleware (a program for adding middleware), and identification of the program are provided.
- Information is sent in a single stream (operational stream).
- the middleware selection execution device selects a middleware that conforms to the middleware addition program based on the program identification information. And run.
- the middleware selection and execution device allows the new middleware to execute a new middleware.
- the sixth aspect that can be additionally stored inside oneself is that in the first aspect,
- the program identification information in the video stream includes a middleware code that indicates to which middleware the program in the video stream fits. Is included,
- the storage location of the middleware is specified.
- the middle / air selection execution device has a correspondence table that describes the correspondence between executable middle / air codes and storage locations.
- the middleware selection execution device extracts the middleware code from the program identification information, compares it with the correspondence table, and obtains the middleware that matches the program. Identify the storage location of the firmware. This allows the middleware selection execution device to read and execute middleware suitable for the program.
- the seventh phase is the sixth phase
- Correction means to add new middleware code and storage location of new middle / air to the correspondence table held by B7C embedding means. Prepare for them,
- the S / D media selection and execution device causes the middleware / middleware code and storage to be stored in the correspondence table. Make corrections to add locations. Thereafter, the moving picture reproducing apparatus can specify the storage location of the new middleware by referring to the corrected correspondence table. As a result, the motion that can be reproduced by the moving picture reproducing device It is possible to increase the number of specifications for the image stream.
- the eighth aspect is the seventh aspect
- an operation stream including the new middleware code, storage location, program for correcting the correspondence table, and program identification information is provided.
- the video stream is further transmitted, and the moving image generator receives the operation stream and, based on the program identification information, a middleware that conforms to the correspondence table correction program.
- the correspondence table correction means is realized by operating the correspondence table correction program on a computer.
- the code and storage location of the middleware of the new middleware and the correction to add the code and storage location of the middleware to the correspondence table are modified.
- the program (program for correcting the correspondence table) to be executed and the identification information of the program are transmitted in a single stream (operation stream). Is received.
- the middleware selection execution device selects and executes the middleware that matches the correspondence table correction program based on the program identification information. .
- the moving image playback device can add a new middleware code to the correspondence table. You can make corrections to add the code and storage location.
- the ninth phase is the sixth phase
- New middleware is additionally stored in the middleware storage means As a result, the middleware code and storage location of the new middleware will be added to the correspondence table held by the reading means. Providing additional means to correct correspondence tables
- the middleware selection execution device when a new middleware is provided from the broadcasting station together with the code and storage location of the middleware, the middleware selection execution device causes the middleware to be executed.
- the software is additionally stored in its own, and the code and storage location of the middleware are additionally described in the correspondence table. This makes it possible to increase the number of video streams that can be played by the video playback device through broadcasting.
- the tenth phase is the ninth phase
- Kazuya will respond to the new middleware and middleware addition programs, and the middleware code and storage location of the new middleware.
- An operation stream including the program for table correction and the program identification information is further transmitted, and the moving image playback device receives the operation stream, and receives the operation stream.
- the program for adding the middleware on the middleware that conforms to the program for adding the middleware and the program for modifying the correspondence table.
- the additional means and the means for correcting the correspondence table are realized by operating the program for correcting the correspondence table and the new middleware.
- the middleware selection execution device Upon receipt of the operation stream, the middleware selection execution device conforms to the middleware addition program and the correspondence table correction program based on the program identification information. Select and execute middleware. By running the middleware addition program on the middleware that is being executed, the middleware selection execution device can provide a new middleware. Can be additionally stored inside itself. In addition, by running the correspondence table correction program on the middleware that is being executed, a new middleware code and storage location are added to the correspondence table. Can be modified.
- the first aspect is the first aspect
- Priority storage means for storing information indicating the priority of each executable middleware is further provided.
- the video stream contains multiple programs that have the same function and operate on different middleware.
- the reading means refers to the information in the priority storing means and reads the medium having the highest priority. It is characterized by reading the software.
- a plurality of programs having the same function but different compatible middleware are included. May be included (in this case, The image playback device only needs to operate one of the plurality of programs).
- the middleware selection execution device holds priority information indicating the priority of each middleware, and based on this priority information, the middleware with the highest priority. Read and execute a.
- the video playback device runs a program that matches the middleware on the highest-priority middleware that is running. This allows the broadcast station to direct the moving picture playback device to preferentially execute a program suitable for a specific middleware.
- the first phase is the first phase
- the priority storing means is characterized in that, when an instruction from a user is input to the moving picture reproducing apparatus, the stored priority information is changed.
- the middleware selection execution device changes the priority information according to an instruction from the user.
- the user can freely specify the middleware to be executed preferentially.
- the thirteenth aspect is the eleventh aspect
- a priority changing means for changing the priority information stored in the priority storing means to new priority information provided from the broadcasting station is further provided.
- the middleware execution device changes the priority according to the instruction sent from the broadcast station. That is, the middleware to be executed with priority can be specified from the broadcast station side.
- the first fourteenth phase is the first thirteenth phase
- An operation stream including new priority information, a program for changing priority, and program identification information is further transmitted from the broadcasting station.
- the image playback device receives the operation stream, and, based on the program identification information, executes the priority change program on the middleware that matches the priority change program. It is characterized in that the priority change means is realized by operating the program.
- the new priority information, a program for changing the priority information (priority change program), and the identification information of the program include one.
- Phase 5 is the first phase
- the video playback device selects one of the broadcast services and selects the relevant broadcast service. Run the service and the corresponding program,
- Video playback equipment Service switching detection means that detects the ordering of the service and requests the selection means to select a middleware that is compatible with the program corresponding to the other broadcasting service.
- the video stream may include a plurality of programs corresponding to different broadcasting services (in this case, the video playback The device only needs to select one of the broadcast services and run the program corresponding to that service.)
- the program switches to another broadcast service. Instruct the video playback device to perform the replacement.
- the middle air selection execution device detects this switching instruction to another broadcast service and selects a middleware that conforms to the program corresponding to the another broadcast service. .
- the middle X-ray selection execution device detects the command and selects a middleware that is compatible with another broadcast service and a corresponding program. And then run.
- the video playback device can operate a program corresponding to another broadcast service on a middleware that conforms to the program.
- switching the broadcasting service it is possible to start playing the moving image of the different broadcasting service.
- the execution means is characterized in that, when the middleware being executed is terminated, the resources reserved for the middleware are released.
- the resources used by the middleware are released when the middleware being executed is terminated, so that the next middleware to be executed is executed. Louware can use the same resources. Therefore, the middleware selection execution device can selectively execute a plurality of middlewares only by having resources of the amount used by one middleware.
- a video stream containing video data, a program, and program identification information transmitted from a broadcast station is received, and the video stream is received based on the program identification information.
- a moving image playback device that plays back the moving image by processing the moving image data by operating the relevant program on the middle air, and conforms to the relevant program.
- the eighteenth aspect is a middleware selection execution program for a moving picture reproducing apparatus which describes the method as in the seventeenth aspect so as to be readable by a combi- nation overnight.
- the nineteenth aspect is a recording medium in which a middleware selection execution program for a moving image reproducing device as in the eighteenth aspect is stored.
- FIG. 1 is a block diagram showing a configuration example of a broadcast system to which the present invention is applied.
- FIG. 2 is a diagram showing the contents of a moving image stream transmitted from each of the broadcasting stations 11 and 12 in FIG.
- FIG. 3 is a block diagram showing a configuration example of hardware for realizing the moving image reproducing device 13 having a middleware selection execution function according to the present invention.
- FIG. 4 is a block diagram showing the overall configuration of the moving picture reproducing device 13 according to the first embodiment of the present invention (also incorporated in the second to sixth embodiments).
- FIG. 5 is a block diagram showing a configuration example of the middleware selection execution unit 35 (first embodiment) in FIG.
- FIG. 6 is a diagram showing an example of the correspondence table held by the middleware reading unit 41 of FIG.
- FIG. 7 is a flowchart showing the operation of the moving image reproducing device 13 according to the first embodiment of the present invention.
- FIG. 8 is a diagram showing the contents of an operation stream transmitted from the broadcast stations 11 and 12 when the storage location of the middleware is changed in the second embodiment. It is.
- FIG. 9 is a block diagram showing a configuration example of the middleware selection execution section 35 (second embodiment) of FIG.
- FIG. 10 shows an operation stream transmitted from the broadcasting stations 11 and 12 when it is desired to add a middleware to the video playback device 13 in the third embodiment. It is a figure which shows the content of a room.
- FIG. 11 is a block diagram showing the configuration of the middleware selection execution section 35 (third embodiment) of FIG.
- FIG. 12 is a diagram showing the contents of a moving picture stream transmitted from the broadcasting station 11 of FIG. 1 in the fourth embodiment.
- FIG. 13 is a block diagram showing the configuration of the middleware selection execution unit 35 (fourth embodiment) of FIG.
- FIG. 14 shows the contents of the operation stream transmitted from the broadcasting stations 11 and 12 when the priority of the middleware is to be changed in the fifth embodiment.
- FIG. 15 is a block diagram showing the configuration of the middleware selection execution unit 35 (fifth embodiment) of FIG.
- FIG. 16 is a block diagram (A) showing the configuration of the middleware selection execution unit 35 (sixth embodiment) of FIG. 4, and the data is transmitted from the broadcasting station 11. It is a figure (B) which shows the content of a moving image stream.
- FIG. 1 is a block diagram showing a configuration example of a broadcasting system to which the present invention is applied.
- a broadcasting system 10 includes two broadcasting stations 11 and 12 for transmitting a moving image stream (for example, an MPEG-2 transport stream). And a video playback device 13 that receives the video stream transmitted from each of the broadcasting stations 11 and 12 and reproduces the video.
- the video playback device 13 is connected to the network 14 constantly or as needed, and is connected to the outside of the system via the network 14 (for example, an external server 15). ) Can also get information from them.
- the two broadcasting stations 11 and 12 transmit video streams according to different specifications. That is, the first broadcast station 11 is a video stream based on the first specification (for example, DVB-MHP specification), that is, the first middleware (for example, JaV a Send a video stream containing a program running on a VM).
- the second broadcast station 12 is a video stream based on the second specification (for example, BS digital specification), that is, a second middleware (for example, BML broadcast). Send a video stream containing a program that runs on the user.
- the first specification for example, DVB-MHP specification
- the first middleware for example, JaV a Send a video stream containing a program running on a VM
- the second broadcast station 12 is a video stream based on the second specification (for example, BS digital specification), that is, a second middleware (for example, BML broadcast). Send a video stream containing a program that runs on the user.
- FIG. 2 is a diagram showing the contents of a moving image stream transmitted from each of the broadcasting stations 11 and 12 in FIG.
- a moving image stream 101 includes moving image data 105 and a program 103 for processing the moving image data 105 to generate a video.
- a program data 104 used by the program 103 and a program for identifying the program 103 Identification information 102 is included.
- the program 103 is written in a specific programming language (for example, Java language or BML), and a specific middleware corresponding to the language (for example, Java VM). Or BML browser).
- the program identification information 102 includes information indicating on which middleware the program 103 operates (hereinafter, referred to as middleware code).
- middleware code information indicating on which middleware the program 103 operates.
- the PSI Program Specific Information
- the program data 104 includes, for example, data for displaying characters, still images, and the like.
- the moving picture playback / transmission apparatus includes a plurality of middleware for operating programs 103 written in different languages (for example, Java language and BML).
- middleware for example, Java language and BML
- the program in the received video stream 101 It has a function to select and execute a middleware that conforms to the system 103.
- the middleware is cut off from each other. Replace and execute.
- the moving picture playback device 13 is provided with a moving picture stream. Regardless of the middleware that runs on any middleware in the room 101, execute the middleware that is compatible with the middleware 103 and execute the middleware.
- the program 103 can be operated on the middleware. By operating the program 103 in this way, the moving image reproducing apparatus 13 can process the moving image data 105 and reproduce the moving image. In addition, by operating the program 103, the moving picture reproducing device 13 can process the program data 104 and display characters and still images. .
- FIG. 3 is a block diagram showing a configuration example of hardware for realizing the moving picture reproducing apparatus 13 having the above-described middleware selection execution function.
- the moving picture reproducing apparatus 13 includes a CPU 20, a ROM 21, a RAM 22, a node disk 23, a tuner 24, and a decoder 25. , The display 26, the modem 28, and the keyboard 27.
- the hard disk 23 stores a plurality of middleware and a middleware selection execution program. These middleware and the plurality of middleware and execution programs are stored in the hard disk 23.
- the CPU 20 operates while using the RAM 22 as a work area based on the middleware selection execution program. Middleware selection execution processing can be performed.
- the middleware selection executing program is stored in the ROM 21 in advance when the moving picture reproducing device 13 is shipped.
- the video stream may be provided in a state of being stored on a portable recording medium such as a CD—R0M, and may be transmitted from the broadcasting stations 11 and 12. It may be provided in 101 or may be provided from the external server 15 via the network 14.
- the middleware selection execution program provided by either method is stored in the hard disk 23 (or ROM 21 if the ROM 21 is a rewritable nonvolatile memory). It can be stored) and read when needed.
- the dollarware is stored in advance in the hard disk 23 when the moving picture reproducing device 13 is shipped.
- it may be stored in advance in the ROM 21 when the moving picture reproducing apparatus 13 is shipped together with the middle program selection executing program.
- it may be provided in a state of being stored in a portable recording medium such as a CD-ROM, and may be included in the moving image stream 101 transmitted by the broadcasting stations 11 and 12. It may be provided, or may be provided from an external server 15 via a network 14.
- Middleware provided by either method is stored in a node disk 23 (or R RM 21) and read when needed.
- the video playback device 13 receives the received video stream 1
- the external server 15 through the network 28 via the modem 28 (the external server 15) Since the server 15 accumulates various middleware), it is also possible to obtain a middleware conforming to the program 103.
- the middleware obtained via 14 is stored in the hard disk 23 (or ROM 21) in the video playback device 13
- the hardware configuration shown in FIG. 3 is a typical example, and is not limited to the illustrated components.
- R RM 21 and a hard disk 23 are used as a medium for storing middleware and various programs.
- the present invention can be implemented using another storage medium such as an optical disk.
- a modem 28 is used as a device for connecting the video playback device 13 to the network 14, but other network connections such as a terminal adapter are used. It can also be implemented using equipment.
- Fig. 1 shows the simplest example of a broadcasting system in which two broadcasting stations 11 and 12 transmit video streams based on different specifications. Although 10 is shown, the present invention is not limited to this system. Even when three or more broadcasting stations are used in a broadcasting system that transmits a moving picture stream based on different specifications, the moving picture reproducing apparatus 13 can be used to store the middle way. A similar middleware selection execution process may be performed, except that the number of hardware increases.
- a broadcasting system in which one broadcasting station transmits a moving image stream 101 based on a plurality of different specifications. For example, when one broadcasting station transmits two types of video streams, a video stream of DVB_MHP specification and a video stream of BS digital specification It is. Even in the case of being used in such a broadcasting system, the moving picture reproducing device 13 may perform the same middleware selection execution processing.
- the following has the middleware selection execution function as described above. Some embodiments of the moving image reproducing apparatus 3 will be described in detail.
- FIG. 4 is a moving picture reproducing apparatus 1 according to the first embodiment of the present invention.
- the moving image reproducing apparatus 13 includes a receiving section 30, a decoding section 31, a processing section 32, a display section 33, and an input section 34.
- the receiving unit 30 receives the moving picture stream 101 (see FIG. 2) transmitted from the broadcasting station 112 in the form of a radio wave.
- the video stream 101 is, for example, a ⁇ ⁇ G- 2 transport stream.
- the decoding unit 31 decodes the moving image stream 101 received by the receiving unit 30.
- the processing unit 32 processes the stream 101 decoded by the decoding unit 31 to reproduce a moving image.
- ⁇ 53 3 3 3 displays the moving image reproduced by the processing unit 32.
- the input unit 34 receives an operation signal from the user and transmits it to the processing unit 32.
- the processing section 32 includes a channel selection section 36 and a middleware selection execution section.
- the tuning section 36 selects a channel in response to an operation signal from the input section 34.
- the S-dollar selection execution unit 35 has a plurality of middlewares, and the video stream 101 transmitted from the broadcasting station selected by the tuning unit 36 is processed by the processing unit 3. When input is made to step 2, select and execute the middleware that conforms to the program 103 included in the video stream 101 .
- FIG. 5 is a block diagram showing a configuration example of the middle key selection execution section 35.
- the middleware selection execution unit Reference numeral 35 includes a suitable middleware selecting unit 40, a middleware reading unit 41, a middleware execution unit 42, and a middleware storage unit 43.
- the middleware storage section 43 contains a plurality of middleware (middleware 1, middleware).
- middleware n are stored.
- JaVaVM and MBL laser are stored.
- the mixed middleware selecting unit 40 includes the moving image stream 101 in the moving image stream 101. Based on the program identification information 102, a middle air that conforms to the program 103 included in the video stream 101 is selected, and the selection result is determined. Notify the middle air reading unit. Specifically, first, the program identification information 102 is extracted from the video stream U-101, and the middleware-code is extracted therefrom. Is notified to the S-drew reader reading unit 41.
- the middleware reading unit 41 reads the middleware selected by the appropriate middleware selecting unit 40 from the middleware storage unit 43.
- the middleware reading unit 41 has a correspondence table as shown in FIG. 6, for example.
- the correspondence table 201 shows the middle area code (identifier) and the storage location of the middle area that can be executed by the moving image reproducing apparatus 13. (Address and URL) are described in association with each other.
- the middleware reading unit 41 Upon receiving the middleware code notification from the combined middleware selection unit 40, the middleware reading unit 41 refers to the correspondence table shown in FIG. With the 'Druware' code Identify the corresponding storage location and load the middleware from that location.
- the middleware code of the program 103 included in the video stream 101 input to the processing unit 32 is “A”. If there is (ie, the program 103 operates on the middleware “A”), the middleware reading unit 41 refers to FIG. Read the middleware from the storage location "MW—01" corresponding to "A”.
- the correspondence table includes not only information on the middle / air that the video playback device 13 owns (that is, is stored in the middleware storage unit 43).
- information on the middleware stored in the external server 15 is further described. Is also good.
- the middleware reading unit 41 can read the middleware from the external server 15 via the network 14.
- the middleware read from the outside is stored in the middleware storage section 43.
- the middleware reading unit 41 reads the same middleware from the middleware storage unit 43 when the same middleware is needed again. As a result, the time required for reading the middleware is shortened, and the reproduction can be started quickly.
- the middleware execution unit 42 executes the middleware read by the middleware reading unit 41. In addition, when the middleware execution unit 42 stops the execution of the middleware, the middleware execution unit 42 uses the resources used by the middleware (for example, the RAM 22). Storage area, tuner 24, decoder 25, etc. ) Is released. This is to make the middle resource to be executed next available to use the same resource.
- the middleware execution unit 42 uses the resources used by the middleware (for example, the RAM 22). Storage area, tuner 24, decoder 25, etc. ) Is released. This is to make the middle resource to be executed next available to use the same resource.
- FIG. 7 is a flowchart showing the operation of the moving image reproducing apparatus 13 according to the first embodiment of the present invention.
- the receiving unit 30 receives the video stream 101 (Step S).
- the decoding section 31 decodes the moving picture stream 101 (step S 4 0 2). Then, the decrypted video stream 101 becomes the middleware selection execution part in the processing part 32.
- the matching middleware selecting section 40 extracts the program identification information 102 from the decrypted moving picture stream 101 (step S4). 0 3), and select a middleware that conforms to the program 103 included in the video stream 101 (hereinafter referred to as a conforming middleware). Step S
- the middleware reading section 41 reads the step S 40
- step S405 It is determined whether the appropriate middleware selected in step 4 has already been read (step S405). As a result of the determination, if the result of the check is S ::, the middleware reading unit 41 notifies the middleware executing unit 42 of the fact. On the other hand, if it has not been read yet, the middleware reading unit 41 refers to the correspondence table 201 and selects the conforming device selected in step S404. Reads the software from middleware storage section 43 (Step S406). When the reading of the appropriate middleware is completed, step S408 is performed.
- the middleware executing unit 42 Upon receiving a notification from the middleware reading unit 41 that the conforming middleware has been read, the middleware executing unit 42 reads the conforming middleware from the current state. It is determined whether or not the program is being executed (step S407). If the determination result is affirmative, that is, if the conforming middleware is being executed, step S411 is performed. On the other hand, if the result of the determination in step S407 is negative, that is, if the conforming middleware is not being executed, step S408 is performed.
- step S408 following step S406 or S407, it is determined whether another middleware is currently being executed. Then, if it is determined that another middleware is being executed, the middleware execution unit 42 terminates the middleware and executes the middleware. The resources used by the middleware are released (step S409).
- step S410 the middleware execution section 42 starts executing the conforming middleware read in step S406 (step S410). Then, step S411 is performed.
- the above is the processing of the middleware selection execution unit 35.
- the program 103 operates on the adaptive middleware being executed.
- the operation result is displayed on the display unit 33.
- a moving image is reproduced from the moving image data 105, and the reproduced moving image is displayed on the display section 33.
- the program 103 As a result of the operation, the program data 104 is processed, and characters, still images, and the like of the processing result are displayed on the display unit 33.
- the above is the operation of the video playback device 13.
- the video stream 101 contains the video data 105 and the program data 104, the video, characters, still images, etc. are displayed on the display unit 3. Although it is displayed in Fig. 3, various other images can be displayed. For example, if the video stream 101 includes game data or graphic data, a game screen or a graphic screen is displayed on the display unit 33. .
- the determination as to whether or not the applicable middleware has been read in step S405 may be made as follows. That is, the memory area where the middleware reading unit 41 has read the middleware and the middleware that has been read is stored is stored in the memory area. If it has not been released, it is determined that it has been read. On the other hand, if it has never been read, or if it has been read but the area that stores the middleware is free, it must be read. It is determined.
- the middleware execution unit 42 determines whether or not the middleware in step S407 or S408 is being executed by executing the middleware. If it has been executed and it has not been terminated, it is determined that the middleware is running.
- the present video playback device 13 includes a decoding unit 31, but receives a video stream 101 that does not need to be decrypted, and In this case, the decoding unit 31 may be deleted.
- the MPEG-12 transport stream is mentioned as a typical example of the video stream 101, but it is a video stream based on other standards. Even if it is a moving picture stream 101 that includes the program identification information 102, it can be implemented. However, information indicating on which middleware the program 103 operates in the program identification information 102 (the middleware code in the present embodiment). If it is not included, such information must be newly added.
- the operation stream 101 is transmitted from the broadcasting stations 11 and 12 to the moving picture reproducing apparatus 13 in the form of radio waves, but it is also possible to execute the operation stream instead of the radio waves It is.
- the broadcasting stations 11 and 12 and the moving picture reproducing apparatus 13 may be connected by an optical fiber and transmitted in the form of light waves.
- middleware examples include Java VM and BML browser, but the types of middleware that can be executed on the video playback device 13 are shown. Any middleware can be implemented.
- the program 103 is assumed to be a program created using the Java language or BML, but a middleware corresponding to the program 103 is a movie. As long as the program can be executed by the playback device 13, the program can be executed even in a program created using another language.
- the middleware reading unit 41 holds the correspondence table 201 and reads the middleware by referring to the correspondence table 201. However, the middleware reading unit 41 reads the middleware. As long as the information that allows the storage location of the selected middleware to be known is possessed, the implementation is possible even if the correspondence table 201 is not possessed.
- the middleware storage section 43 is built in the video playback device 13 (see FIG. 4), but is external to the video playback device 13 and connected to the video playback device 13. It is feasible. At this time, the present invention is not limited to the form directly connected to the moving picture reproducing apparatus 13, but can be implemented also to the form connected via the network 14.
- step S408 and S409 the middle-air execution unit 42, when another middleware is running, executes the middleware. At the same time, the resources used by the middleware are released, but if the video playback device 13 has sufficient resources, the step is performed. Step S408 and step S409 can be performed even if the processing in step S409 is omitted.
- the middleware reading unit 41 reads the middleware selected by the appropriate middleware selecting unit 40 from the middleware storage unit 43.
- the middleware storage section 43 is realized by the R ⁇ M21, when the reading operation is not required, the reading process is not performed, and the reading operation is simply performed. It is also possible to notify the middleware execution unit 42 of the storage location of the hardware.
- a video playback device having a middleware selection execution function that selects and executes middleware that fits the program 103 in the video stream 101
- a description will be given of a moving image reproducing apparatus in which a new function is added to the middleware selection execution function.
- the second embodiment is different from the first embodiment in that a stream including a program for correcting a correspondence table is transmitted from broadcast stations 11 and 12.
- the only difference is that the moving image playback device 13 further has a function of correcting the correspondence table due to the operation of the program.
- the overall configuration of a moving image reproducing apparatus 13 according to the second embodiment of the present invention is the same as that of the first embodiment. Use the block diagram in 4.
- FIG. 8 shows the stream (broadcast from broadcasting stations 11 and 12) when the storage location of the middleware is changed or a new middleware is added. This is called the “operation stream” to distinguish this from the video stream.
- FIG. 9 shows the configuration of the middleware selection execution unit 35 of FIG. It is a block diagram.
- the operation stream 301 includes program identification information 302, a program for correcting a correspondence table 303, and program data 304.
- program identification information 302 a program for correcting a correspondence table 303
- program data 304 include.
- the operation stream 301 is an MPEG-2 transport stream. In some cases, dummy video data is added to them.
- the program data 304 is information indicating the code and storage location of the new middleware.
- the program identification information 302 includes, in addition to information (for example, middleware code) indicating on which middleware the program for correcting the correspondence table 303 operates, (for example, middleware code). Information (for example, an identifier such as "0X10") indicating that the program 303 is for correcting the correspondence table is described.
- the correspondence table modification program 303 is a program for modifying the correspondence table held by the middleware reading unit in accordance with the movement or addition of the middleware.
- the middleware selection execution unit 35 includes a suitable middleware selection unit 40, a middleware reading unit 41, a middleware execution unit 42, It includes a middleware storage unit 43 and a correspondence table correction unit 50.
- the middleware storage section 43 stores a plurality of middlewares (middleware 1, middleware 2, ..., middleware n).
- the middleware selection execution section 35 of FIG. 9 is the correspondence table held by the middleware reading section 41 in the middleware selection execution section 35 of FIG. (See Fig. 6)
- a correspondence table correction section 50 has been added to correct this.
- the correspondence table correction unit 50 is designed to allow the correspondence table correction program 303 to operate on the middleware being executed while using the program database 304. Is achieved. The operation of the moving picture reproducing apparatus 13 configured as described above will be described below.
- the video playback device 13 receives the operation stream 301 as shown in FIG. 8 and executes middleware conforming to the correspondence table correction program 303.
- the operation up to this point is the same as that of the first embodiment (see FIG. 7), and the description is omitted.
- the correspondence table correction program 303 is started on the running middleware.
- the correspondence table correction program 303 operates while using the program data 304, thereby executing the middleware selection as shown in FIG.
- a correspondence table correction unit 50 is realized in the unit 35.
- the correspondence table correction unit 50 is used to reflect the movement and addition of the middleware to the correspondence table held by the middleware reading unit. Make corrections. For example, when the middleware in the external server 15 is moved to another external server, the code of the middleware and the URL of the destination external server are paired. The correspondence table correction unit 50 can make corrections by referring to them. Also, when a new middleware is added to the external server 15, the code of the middleware and the URL of the external server 15 are sent as a pair. So you can make corrections with reference to them.
- a new middleware may be provided in a state of being stored on a recording medium such as a CD-ROM, and the moving image reproducing apparatus 13 may read the middleware from the recording medium. Can be.
- the code of the middleware and the recording medium Since the information for identifying the body is sent as a pair, the correspondence table correction unit 50 can make corrections by referring to them.
- the identifier "0x10" is listed as an example of information indicating that 03 is for correction of the correspondence table, but the program is not limited to this kind of numerical value. It can be implemented if it is possible to identify that the system 303 is for correcting the correspondence table.
- the URL of the external server 15 is given as an example of information indicating the storage location of the middleware. As long as the middleware reading unit is in a usable data format, it can be executed by other than URL.
- the third embodiment is different from the first embodiment in that a broadcast station 11 or 12 includes a program for adding a middleware and a program for correcting a correspondence table. Streams may be sent, and when those programs run, the video playback device 13 adds new middleware, and The only difference is that it has the function of modifying the correspondence table with the addition of middleware.
- FIG. 11 is a block diagram showing the configuration of the middle module selection execution unit 35 of FIG.
- the operation stream 401 contains a program a ⁇ , information 402, a program for adding middleware 400, and a program for modifying the correspondence table. 4 0 4 and the program
- Operation stream 4 0 1 is M P E
- the program data 405 includes the middleware to be added, and information indicating the code and location of the middleware.
- the middleware addition program 403 is a program for additionally storing a new middleware XA in the middleware storage section 43.
- Correspondence table modification program 404 is a program for modifying the correspondence table held by the middleware readout unit with the addition of middleware. is there .
- the middleware selection execution unit 35 includes a conforming drulware selection unit 40 and a middleware reading unit 41. And a middleware execution unit 42, a middleware storage unit 43, a middleware addition unit 51, and a correspondence table correction unit 50.
- the middleware storage section 43 stores a plurality of middleairs (middleware1, middleware2,..., Middlewaren).
- the middleware selection execution unit 35 of FIG. 11 is different from the middleware selection execution unit 35 of FIG.
- a correspondence table correction unit 50 that corrects the correspondence table held by the middleware reading unit 4 due to the addition of the dollarware. It is something.
- the middle-air addition section 51 and the correspondence table correction section 50 are used for the middle-air addition program 4003 and the correspondence table correction section on the adaptation section during execution. It is realized by the program 404 that operates while using the program 405.
- the video playback device 13 receives the operation stream 401 shown in FIG. 10 and the middleware changing program 4003 and the correspondence table correcting program are received.
- the operation until the middle air conforming to the program 404 is executed is the same as that of the first embodiment (see FIG. 7), and the description is omitted.
- the middleware changing program 403 and the correspondence table correcting program 404 are started on the running middleware. So Then, the program for changing the middleware 403 and the program for correcting the correspondence table 404 operate while using the program data 405.
- a middleware addition unit 51 and a correspondence table correction unit 50 are realized in the middleware selection execution unit 35.
- the middleware adding unit 51 implemented in this way performs a process of adding a new middleware to the middleware storage unit 43, while the correspondence table correction unit 50 Modify the correspondence table held by the middleware reading unit to reflect the addition of the middleware. That is, when a new middleware is added, the middleware itself and the code and storage location of the middleware are transmitted as program data 405. Therefore, the middleware adding section 51 can additionally store the middleware in the middleware storage section 43, and the correspondence table correcting section 50 can store the middleware in the middleware storing section 43. The code and storage location of the new middleware can be added to the correspondence table.
- the identifier “0X20” is an example of information indicating that the two programs 403 and 404 are for adding middleware and for correcting the correspondence table. And "0x10", but it is not limited to this kind of numerical value, and it is possible to identify that the program is for middle air addition and for correspondence table correction Anything is possible.
- the new middleware to be added is included in the operation stream 401 and sent to the video playback device 13, but the operation stream 401 Should not be included in the network
- the present invention can be implemented even if the data is sent to the video playback device 13 via the link 14.
- the process when adding new middleware is explained.However, existing middleware is deleted or existing middleware is replaced with new middleware. It is also possible to carry out processing to replace with a.
- the operation stream 401 replaces the middleware program 403 with the ⁇ middleware removal program.
- the program for deleting middleware is a program for deleting middleware from the dollar-air storage unit 43, and the program for correcting the correspondence table is middleware. This is a program to modify the correspondence table with the deletion.
- the program data 405 includes the code and storage location of the middle air to be deleted.
- the operation stream 401 When replacing the existing middleware with a new middleware, the operation stream 401 will replace the middleware addition program 4003 with the middleware.
- the middleware replacement program is a program for replacing the middleware in the middleware storage section 43 with new middleware, and is a program for correcting the correspondence table.
- the program is a program for modifying the correspondence table with the replacement of middleware.
- the program data 405 includes the code and storage location of the existing middleware to be replaced, and the code and storage location of the new middleware. Is included. (Fourth embodiment)
- the fourth embodiment is different from the first embodiment in that one broadcast station (hereinafter, referred to as broadcast station 11) is functionally the same program, but mutually different.
- a video stream containing multiple programs that operate on different middleware may be sent, and multiple programs may be sent.
- the moving image reproducing apparatus 13 has a function for operating the program corresponding to the middleware with the highest priority and the program.
- each middleware is given a priority
- the video playback device 13 executes the middleware given the highest priority, and executes the middleware. Run the program that matches the firmware.
- the priority is set to "Java VM priority”.
- the broadcast station 11 sends a video stream including a video playback program operating on the Java VM and a video playback program operating on the BML browser.
- the moving image reproducing device 13 executes the Java VM according to “Java VM priority”.
- a JAVA VM compatible video playback program operates.
- FIG. 12 is a diagram showing the contents of the moving picture stream transmitted from the broadcasting station 11
- FIG. 13 is a diagram showing the configuration of the middleware selection execution unit 35 of FIG. It is a block diagram.
- the video stream 501 includes program identification information 502, a program A503, a program B504, and a program B504.
- both the program A503 and the program B504 are programs for processing the video data 506 and reproducing the video.
- the matching middleware is different from each other.
- program A503 runs on JavaVM
- program B504 runs on a BML browser.
- the program identification information 502 describes information indicating which middleware each of the program A503 and the program B504 operates on.
- the program data 505 includes, for example, data for displaying characters, still images, and the like.
- the middleware selection execution unit 35 includes an appropriate middleware selection unit 40, a middleware reading unit 41, and a middleware execution unit 42. And a middleware storage unit 43 and a priority storage unit 60.
- the middleware storage section 43 stores a plurality of middlewares (middleware 1, middleware 2,..., Middleware n).
- the priority storage section 60 stores information indicating the priority set for each middleware in the middleware storage section 43.
- those having the same reference numerals as those in FIG. 5 are the same as those in the first embodiment. That is, the middleware selection execution section 35 of FIG. 13 is different from the middleware selection execution section 35 of FIG. 5 in that the middleware in the middleware storage section 43 is provided.
- a priority storage section 60 for storing priority information related to the above is added.
- the moving image reproducing apparatus 13 includes a step S 404 described below between steps S 404 and S 405. Only 404a is added.
- step S404 the applicable middleware selecting unit 40 extracts the program identification information 502 from the decoded video stream 501.
- This program identification information 502 includes the program A 503 included in the video stream 501 received by the receiving unit 30 in step S401. It describes on what middleware each of the programs B504 operates, and a middleware that conforms to the program A503 and a middleware that conforms to the program A503. Select middleware and that conform to B504.
- the conforming middleware selecting unit 40 refers to the contents of the priority storage unit 60, and Among the two middlewares selected in step S404, a middleware with a higher priority is further selected. Then, in step S406, the number is reduced to one through the two-stage selection of steps S405 and S405a. Compliant and top-priority middleware is implemented.
- step S411 a program conforming to the middleware runs on the middleware being executed.
- the priority of each middleware is a predetermined fixed value, but it is also possible for the user to change the priority via the input unit 34.
- the priority information of the middleware is stored in the priority storage section 60, and the middleware is automatically selected based on the priority information. It is also possible to determine the priority of middleware and input the result.
- the fifth embodiment is different from the fourth embodiment in the case where a video stream including a priority changing program is transmitted from broadcast stations 11 and 12.
- the only difference is that the moving image playback device 13 further has a function of changing the priority of the middleware due to the operation of the program.
- the overall configuration of the moving picture reproducing apparatus 13 according to the fifth embodiment of the present invention is the same as that of the fourth (first) embodiment. In this embodiment, the entire moving picture reproducing apparatus 13 is also provided.
- the block diagram in Fig. 4 is used as the configuration diagram.
- Figure 14 shows the broadcast when you want to change the priority of the middleware.
- Fig. 15 shows the contents of the operation stream sent from stations 11 and 12;
- Fig. 15 shows the configuration of the middleware selection execution unit 35 of Fig. 4. It is a block diagram.
- the operation stream 601 includes program identification information 602, a priority change program 603, and program data 604. It is included . If the operation stream 501 is an MPEG-2 transport stream, the video data of the dummy will be added. On the program day 604, the new priority information is included.
- the program identification information 602 includes the priority change program 603 on which middleware. In addition to the information that indicates whether the program will operate (for example, middleware code), the information that indicates that the program 603 is for changing priority (for example, “0X30”) (Such as ").
- the priority change program 603 is a program for changing existing priority information stored in the priority storage unit 60 to new priority information.
- the middleware selection execution unit 35 includes a suitable middleware selection unit 40, a middleware reading unit 41, and a middleware execution unit 42. , A middleware storage section 43, a priority storage section 60, and a priority change section 61.
- the middleware storage section 43 stores a plurality of middlewares (middleware 1, middleware 2,..., Middleware n).
- the middle-air selection execution unit 35 in FIG. 15 is the same as the priority stored in the priority storage unit 60 in the middle-ware selection execution unit 35 in FIG.
- a priority change unit 61 for changing information is added.
- the priority changing unit 61 operates in such a manner that the priority changing program 603 operates on the middleware being executed while using the program data 604. Is realized.
- the video playback device 13 receives the operation stream 601, as shown in FIG. 14, and executes the middleware that conforms to the priority change program 603.
- the operation is the same as that of the fourth (first) embodiment (see FIG. 7), and the description is omitted.
- the priority change program 603 is started on the middleware being executed.
- the priority changing program 603 operates while using the program program 604, and as shown in FIG.
- a priority change section 61 is realized in the dollar / air selection execution section 35.
- the priority change unit 61 changes the priority information stored in the priority storage unit 60 to a new priority sent from the broadcast stations 11 and 12.
- the program for changing the priority from the broadcasting stations 11 and 12 is used.
- the moving picture reproducing apparatus 13 first executes the Java VM according to “Java VM priority”.
- the Java-specification priority change program 603 runs on the running Java VM, and as a result, in the video playback device 13, the priority is changed from “Java VM priority”. Changed to "BML Browser Priority”.
- the transmitted video stream contains two types of programs, a Java VM compatible type and a BML browser compatible type, the BML The browser is activated first, and the BML browser-compatible program runs on the BML browser.
- the identifier "0x30" is given as an example of information indicating that the program 603 is for changing the priority, but is limited to this kind of numerical value. In other words, if the program 603 can be used for changing the priority, it can be implemented. In addition, if the operation stream 601 in Fig. 14 is an MPEG-2 transport stream, it is assumed that the movie video of Dummy will be further included. However, it is feasible if not dummy.
- the sixth embodiment differs from the first embodiment only in the following (a) and (b).
- broadcasting station 11 One broadcasting station (hereinafter referred to as broadcasting station 11) provides a plurality of different services (for example, first and second broadcasting services). Video stream containing multiple programs corresponding to multiple services may be sent from broadcasting station 11 .
- the moving picture reproducing apparatus 13 selects a service to be received (either the first broadcast service or the second broadcast service), and executes a program corresponding to the broadcast service.
- the moving image reproducing apparatus 13 selects and executes a middleware for operating a program corresponding to the broadcast service. Then, by running the program on the middleware that is being executed, the moving picture reproducing apparatus 13 can receive the selected broadcasting service.
- a broadcast program and a program for the second broadcast are included in the video stream. The former program is compatible with the Java VM, and the latter is compatible with the BML browser. It is assumed that At this time, when the first broadcast is selected, JavaVM is executed, and the first broadcast program operates on the running JavaVM.
- the running program may instruct the above switching of the broadcasting service.
- the first broadcast program running on the Java VM instructs switching from the first broadcast to the second broadcast.
- the BML browser is activated, and the second broadcast program starts operating on the BML browser.
- the Java VM is stopped and the resources used by the Java VM are released.
- the overall configuration of the moving picture reproducing apparatus 13 according to the sixth embodiment of the present invention is the same as that of the first embodiment.
- the block diagram in Fig. 4 is used.
- FIG. 16 (A) is a block diagram showing the configuration of the middleware selection execution section 35 of FIG. 4, and FIG. 16 (B) is a video stream transmitted from the broadcasting station 11. It is a figure which shows the content of the stream.
- the video stream 701 includes the program identification information 702, the first broadcast program 703, and the second broadcast program 703.
- the program 704 the program for the first broadcast 705, the program for the second broadcast 706, the video for the first broadcast 707, and the 2 Broadcast video data 708 is included.
- the first broadcast program 703 is a program for processing the first broadcast moving image data 707 to reproduce the first broadcast moving image.
- the second broadcast program 704 is a program for processing the second broadcast moving image data 708 and reproducing the second broadcast moving image.
- the suitable middle middle air differs between the first broadcast program 703 and the second broadcast program 704.
- the first broadcast program 703 operates on the Java VM
- the second broadcast program 704 operates on the BML browser.
- the first broadcast program 703 uses the first broadcast program data 705 to display characters and still images.
- the second broadcast program 704 displays characters, still images, etc. using the second broadcast program 706.
- the first broadcast program 703 switches from the first broadcast to the second broadcast while playing the first broadcast video, and starts playing the second broadcast video. Also has a function to instruct the user to do so.
- the program identification information 702 includes information indicating which broadcast service each program 703 and 704 corresponds to, and which middleware operates on which middleware. The indicated information and are described.
- Each of the program data 705 and 706 includes, for example, data for displaying characters, still images, and the like.
- the middleware selection execution section 35 includes a suitable middleware selection section 40, a middleware reading section 41, and a middleware execution section.
- a section 42, a middleware storage section 43, and a broadcast service switching detection section 70 are included.
- the middleware storage section 43 stores a plurality of middleware (middleware 1, middleware 2, ⁇ , middleware n).
- the middleware selection execution section 35 of FIG. 16 (A) is the same as the middleware selection execution section 35 of FIG. 5 except that a broadcast service switching detection section 70 is added. It is what you do.
- the broadcast service switching detection section 70 detects the first broadcast service from the first broadcast service in a state where the first broadcast program 703 is operating on a compatible middleware. 2 Detecting that the video playback device 13 is instructed to switch to the broadcasting service Then, request the appropriate middleware selection unit 40 to select a middleware that conforms to the second broadcast program 704.
- the moving image reproducing apparatus 13 receives the moving image stream 701 as shown in FIG. 16 (A), and the middleware conforming to the first broadcast program 703.
- the operation up to the execution of is the same as in the first embodiment (see FIG. 7), and a description thereof will be omitted.
- the first broadcast program 703 should switch the service it receives from the first broadcast to the second broadcast. Instruct.
- the broadcast service switching detection unit detects this instruction and selects an appropriate middle program that conforms to the second broadcast service program 706. Ask the software selection department 40
- the conforming middleware selection section 40 selects a middle air that conforms to the second broadcast program 704 based on the program identification information, and selects the middle air. Notify the key reader 41.
- the middleware reading unit 41 reads the notified middle air from the middleair storage unit 43, and the middleware execution unit 42 starts executing it. .
- the second broadcast program 704 operates on the middle air being executed, and the moving image reproducing apparatus starts reproducing moving images, characters, still images, and the like for the second broadcast.
- each is different. It can receive video streams of various specifications, including programs that run on middleware, and play back videos at a low cost (even if the number of specifications increases). The price hardly increases.) A video playback device is realized.
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001286213A AU2001286213C1 (en) | 2000-12-07 | 2001-09-13 | Motion picture reproducing middleware selecting/ executing device and method |
AU8621301A AU8621301A (en) | 2000-12-07 | 2001-09-13 | Motion picture reproducing middleware selecting/ executing device and method |
EP01965601A EP1343313A4 (en) | 2000-12-07 | 2001-09-13 | DEVICE AND METHOD FOR SELECTION AND EXECUTION OF MIDDLEWARE FOR PLAYING MOVEMENT IMAGES |
US10/203,109 US6876434B2 (en) | 2000-12-07 | 2001-09-13 | Motion picture reproducing middleware selecting/executing device and method |
US10/978,436 US20050120387A1 (en) | 2000-12-07 | 2004-11-02 | Device and method of selecting and executing middleware for motion picture reproduction |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000372634 | 2000-12-07 | ||
JP2000-372634 | 2000-12-07 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/978,436 Division US20050120387A1 (en) | 2000-12-07 | 2004-11-02 | Device and method of selecting and executing middleware for motion picture reproduction |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002047378A1 true WO2002047378A1 (fr) | 2002-06-13 |
Family
ID=18842143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/007932 WO2002047378A1 (fr) | 2000-12-07 | 2001-09-13 | Dispositif de selection et d'execution d'intergiciels de reproduction d'images animees |
Country Status (6)
Country | Link |
---|---|
US (2) | US6876434B2 (ja) |
EP (1) | EP1343313A4 (ja) |
JP (1) | JP2002238003A (ja) |
CN (2) | CN1185868C (ja) |
AU (2) | AU8621301A (ja) |
WO (1) | WO2002047378A1 (ja) |
Families Citing this family (17)
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JP2002238003A (ja) * | 2000-12-07 | 2002-08-23 | Matsushita Electric Ind Co Ltd | 動画再生用ミドルウェア選択実行装置および方法 |
US20030121057A1 (en) * | 2001-12-20 | 2003-06-26 | Koninklijke Philips Electronics N.V. | Script-based method for unattended control and feature extensions of a TV or settop box device |
WO2004034698A1 (ja) * | 2002-10-09 | 2004-04-22 | Matsushita Electric Industrial Co., Ltd. | 情報処理装置 |
CN1602068A (zh) * | 2003-09-24 | 2005-03-30 | 松下电器产业株式会社 | 内容再现装置及再现内容的方法 |
KR100599166B1 (ko) * | 2003-11-24 | 2006-07-12 | 삼성전자주식회사 | 복수의 디지털 방송 신호 수신이 가능한 디지털 방송 처리시스템 및 그 방법 |
US7797698B2 (en) * | 2004-11-17 | 2010-09-14 | International Business Machines Corporation | Method and apparatus for dynamic middleware assembly |
KR100748686B1 (ko) | 2005-02-18 | 2007-08-13 | 삼성전자주식회사 | 디지털 방송 수신기의 소프트웨어 업그레이드 장치 및 방법 |
CA2609827A1 (en) * | 2005-06-23 | 2006-12-28 | Matsushita Electric Industrial Co. Ltd. | Program execution apparatus and execution method |
US7738863B2 (en) | 2005-08-25 | 2010-06-15 | Nokia Corporation | IP datacasting middleware |
US20070261090A1 (en) * | 2006-03-24 | 2007-11-08 | Miller Eric B | Interactive television application distribution, control, and communication system and methods |
KR100870200B1 (ko) * | 2008-04-16 | 2008-11-25 | (주)티비스톰 | 통합 미들웨어형 디지털방송 수신장치 |
JP2010009408A (ja) * | 2008-06-27 | 2010-01-14 | Sony Corp | 情報処理装置、およびデータ処理方法、並びにプログラム |
US8566869B2 (en) * | 2008-09-02 | 2013-10-22 | Microsoft Corporation | Pluggable interactive television |
JP5449044B2 (ja) * | 2010-06-10 | 2014-03-19 | シャープ株式会社 | サーバ装置、端末装置およびアプリケーション制御システム |
WO2012008097A1 (ja) * | 2010-07-15 | 2012-01-19 | パナソニック株式会社 | アニメーション制御装置、アニメーション制御方法、プログラムおよび集積回路 |
WO2013113583A2 (en) * | 2012-01-31 | 2013-08-08 | Domlex Limited | A system and a method of broadcasting and displaying of an advertisement during the interval of switching between dvb channels or services |
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- 2001-09-12 JP JP2001276967A patent/JP2002238003A/ja not_active Withdrawn
- 2001-09-13 CN CNB018077080A patent/CN1185868C/zh not_active Expired - Fee Related
- 2001-09-13 US US10/203,109 patent/US6876434B2/en not_active Expired - Fee Related
- 2001-09-13 AU AU8621301A patent/AU8621301A/xx active Pending
- 2001-09-13 AU AU2001286213A patent/AU2001286213C1/en not_active Ceased
- 2001-09-13 CN CNB200410098204XA patent/CN100429929C/zh not_active Expired - Fee Related
- 2001-09-13 WO PCT/JP2001/007932 patent/WO2002047378A1/ja active Application Filing
- 2001-09-13 EP EP01965601A patent/EP1343313A4/en not_active Withdrawn
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2004
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Also Published As
Publication number | Publication date |
---|---|
CN100429929C (zh) | 2008-10-29 |
CN1625234A (zh) | 2005-06-08 |
CN1422490A (zh) | 2003-06-04 |
AU2001286213B2 (en) | 2006-03-09 |
EP1343313A4 (en) | 2007-09-12 |
AU8621301A (en) | 2002-06-18 |
US6876434B2 (en) | 2005-04-05 |
JP2002238003A (ja) | 2002-08-23 |
AU2001286213C1 (en) | 2006-08-10 |
EP1343313A1 (en) | 2003-09-10 |
US20050120387A1 (en) | 2005-06-02 |
CN1185868C (zh) | 2005-01-19 |
US20030011749A1 (en) | 2003-01-16 |
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