CN101194508A - Recording and reproduction apparatus - Google Patents
Recording and reproduction apparatus Download PDFInfo
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- CN101194508A CN101194508A CNA2006800201343A CN200680020134A CN101194508A CN 101194508 A CN101194508 A CN 101194508A CN A2006800201343 A CNA2006800201343 A CN A2006800201343A CN 200680020134 A CN200680020134 A CN 200680020134A CN 101194508 A CN101194508 A CN 101194508A
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Abstract
Conventionally, in a broadcast recording and reproduction apparatus that executes an application program in synchronization with service reproduction, only a single service is recorded even if the application program can be synchronized with a new service and continuously executed after a service switch. Therefore, when the service is switched during reproduction of an already-recorded service, the application program cannot perform its original operation. The present invention maintains normal operation of the application program by referring to synchronization information of the application program when the service that includes the application program is recorded, and simultaneously recording a service to which it is possible to switch.
Description
Technical field
The present invention relates to a kind of broadcast recoding and transcriber, it is collected content and reproduces collected content.Particularly, the present invention relates to a kind of setting that is used for received content, described content by the phase mutually synchronization, forming of being multiplexed in the broadcast wave and sending such as the such data of video, audio frequency and program, wherein, broadcast wave is received and video, audio frequency and data is collected; And a kind of being used for video/audio is reproduced, kept simultaneously to content and such as the synchronous setting between the such data of program.
Background technology
From the broadcast wave that send in the broadcasting station, comprise various contents.Except that video that in ordinary tv programme, uses and audio frequency, in content, comprise data under the certain situation.There is the Several Methods be used to send data, it can be divided into roughly according to the order (chronologically) that takes place and sends the method for data and repeat to send the method for data with the interval (per set interval) of each setting.In preceding a kind of method, for example, be sent in the time progress with order in proper order and go up continuous data according to the order transmission data that take place.This method is suitable for sending mass data on long-time section, but its shortcoming is that the data that cause receiving owing to the opportunity that sends just can not be received once more.
On the other hand, in a kind of method that repeats intervally to send data in back, in the section identical data are repeated to send inferior arbitrarily at a fixed time with setting.The advantage of this method is, in the time period that sends identical data, can receive any data that repeat to send, thereby reception is unrestricted opportunity.By the data broadcasting of BML representative and by the file transmission that the DSM-CC data carousel carries out is the example of this method.And do not know when the recipient can select channel and begin to receive, in broadcasting particularly like this.Sending according to the order that takes place in the method for data, after the startup that receives has dropped on delivery time and when failing to obtain data, can't regain these data.Therefore, when in broadcast wave, sending such as the such data of application program, be suitable with the method that repeats intervally to send data of each setting with video and audio frequency.
At present, developed and implemented to be used to receive the broadcast wave that comprises video, audio frequency and application program and to carry out the standard of this application program with video and audio sync ground as used in said method.Can receive the application program that is sent, application program is loaded into terminal, and realize various additional functions, rather than only watch video and audio frequency by carrying out this application program.This transmission application program also is also referred to as " download " with the method that application program is loaded into terminal.
For example, developed the standard that is called Digital Video Broadcasting-Multimedia Home Platform (DVD-MHP) ETSI ES 201812 vl.1.1 (2003-12) in Europe, and brought into operation according to this standard.In addition, the U.S. is developing Open Cable Application Platform (OCAP) OC-SP-OCAP1.0-I14-050119, and it provides identical scheme in the wired broadcasting environment, and also will begin actual operation.In these standards, application program is write with Java language.In terminal, be provided for the various API (API) of tuning, graphical display etc., and by calling these API, java application can be controlled these functions.
In addition, the OCAP-DVROC-SP-OCAP-DVR-I01-040524 standard is being developed in the North America, and its purpose is to add the function that is used to write down and reproduce content for the OCAP standard.Utilize this standard, the video, audio frequency and the java application synchronous with it and that be performed that send as cable tv broadcast are registered as content, and, reproduced directly from broadcast wave, to reproduce identical mode with the content that is recorded.With with directly from broadcast wave, reproduce identical mode, this application program and video and the reproduction of audio sync ground.
In addition, utilize OCAP-DVR, but, realized the special play-back (trick play) of content by broadcasted content being recorded in the high speed random-access storage medium (such as hard disk, semiconductor memory etc.).Here, special play-back refers to be used for wait the function of reproducing content with arbitrary speed, from the optional position, such as F.F., fall back, slow motion, suspend, skip etc.Utilize OCAP-DVR, be loaded into record and the special play-back that the application program of terminal can control content from broadcast wave.In other words, in terminal, provide the API that is used to write down with special play-back, and java application is controlled each function by calling these API.
In OCAP-DVR, video, audio frequency and application program synchronous with it and that carry out are lumped together the service that is defined as.When broadcast receiving apparatus reproduces service, synchronously carry out this application program with the reproduction of video and audio frequency.Usually, under the situation that the service of generation is switched, the service that be switched to comprises different application programs, therefore stops the application program of carrying out thitherto.Yet, in a plurality of services, include under the situation of identical application program, even service switches, also might continue to carry out this application program in the new service.
For example, in service A, include video A, audio A and application A, in a different service B, include video B, audio frequency B and application A.In the application A with the program code that is used for switching between the B in service A and service.When reproducing service A, executive utility A; After this, carry out above-mentioned program code, even service switches and serves B and reproduced, application A also continues to carry out.Note, utilize OCAP-DVR,, can under the situation that the service of generation is switched, stop application A by the flag bit in the synchronizing information that application program suitably is set.
Utilize the writing function of OCAP-DVR, service that can recorded announce.Yet, utilize OCAP-DVR, when specifying the service that will write down, specified single service or channel identifier; Therefore, under the situation of an application program reproducing two or more services, can break down.In other words, use above-mentioned explanation, specify under the situation that will write down service A, can not write down service B.Like this, carry out writing being used for when service A switches to the program code of service B in the application A during reproducing service A, service B can not reproduce, and unusual condition occurs.
In view of this, the purpose of this invention is to provide a kind of record and transcriber and a kind of record and reproducting method, wherein, when comprising the service of application program at record with reference to the synchronizing information of this application program and the service that switches to possibly of record simultaneously, even actual the generation served when switching, unusual condition can not appear yet.
Summary of the invention
For achieving the above object, record of the present invention and transcriber comprise: receiving element, be used to receive a plurality of services, each service comprises video information, audio-frequency information, program, be used for the synchronizing information of video information and audio-frequency information and this Program Synchronization and be used to discern the element of service identifying information of this video information, audio-frequency information, program and synchronizing information; Record cell, the reservation service that is used for a plurality of service appointments that will be received records in the recording medium; Reproduction units is used for the video information and the audio-frequency information that are included in the reservation service that receives or be recorded in the reservation service of recording medium are reproduced; And program execution unit, be used for carrying out the program in the reservation service that is included in the reservation service that receives or is recorded in recording medium, and, this record and transcriber:, reproduce video information and the audio-frequency information that is included in the reservation service with the Program Synchronization ground that is included in the reservation service by carry out included program in the reservation service in being recorded in recording medium according to synchronizing information; Record cell during just in recording scheduled service synchronizing information or element of service identifying information take place more under the news, obtain again with a plurality of services that received in the corresponding element of service identifying information of reservation service of appointment; And isolate specified reservation service, and the service that recording unit records is separated based on the element of service identifying information that is obtained.
Therefore, the synchronizing information of reference applications and the record service that may switch to simultaneously when comprising the service of application program at record are even when the service switching takes place, also can prevent unusual condition when actual.
In addition, synchronizing information or element of service identifying information take place more under the news when described record cell is writing down, the corresponding element of service identifying information of the reservation service of appointment in a plurality of services that this record and transcriber can obtain again and receive, and can isolate the reservation service of appointment based on the element of service identifying information that is obtained, and make described recording unit records be included in video information, audio-frequency information, program, synchronizing information and the element of service identifying information in the isolated service.
In addition, synchronizing information or element of service identifying information take place more under the news when described record cell is writing down, the corresponding element of service identifying information of the reservation service of appointment in a plurality of services that this record and transcriber can obtain again and receive, and can isolate the reservation service of appointment based on the element of service identifying information that is obtained, and make described recording unit records and the corresponding transport stream of isolated service (transport stream).
In addition, the program that is included in first service that appointment will be recorded also can be included in second service; Synchronizing information can comprise the execution information that continues, and when its indication switches to second service and reproduces second service in reproduction period first service, whether can continue to carry out the program that is included in first service; And, even the continuation execution information indication that comprises in the corresponding synchronizing information of program that comprises in serving with first also can continue to carry out under the situation of this program when switching to second service and reproducing second service, this record and transcriber can be based on the element of service identifying informations that is obtained, except first service of appointment, also second service is separated into reservation service, and makes the isolated service of recording unit records.
Therefore, switch under the situation of that class method that still can continue to carry out even belong to the service of generation in this program, second service also can be recorded in the recording medium, thereby this program can not drop into the state that can not continue to carry out when service is switched.
In addition, can only can allow to write down simultaneously under the situation of first service and second service, this record and transcriber are just based on the element of service identifying information that is obtained, except first service of appointment, also second service is separated into reservation service, and makes the isolated service of recording unit records.
In addition, comprise according to record of the present invention and transcriber: receiving element, be used to receive a plurality of services, each service comprises video information, audio-frequency information, program, be used for the synchronizing information of video information and audio-frequency information and this Program Synchronization and be used to discern the element of service identifying information of this video information, audio-frequency information, program and synchronizing information; Record cell, first service log that is used for a plurality of service appointments that will be received is in recording medium; Reproduction units, be used for to be included in receive first the service or be recorded in recording medium first the service in video information and audio-frequency information reproduce; And program execution unit, be used for carrying out the program in first service that is included in first service that receives or is recorded in recording medium, and, this record and transcriber reproduce video information and the audio-frequency information that is included in first service by carry out included program in first service in being recorded in recording medium according to synchronizing information with the Program Synchronization ground that is included in first service; The program that is included in first service that appointment will be recorded is also included within second service; Synchronizing information comprises the execution information that continues, and when its indication switches to second service and reproduces second service in reproduction period first service, whether can continue to carry out the program that is included in first service; And, even the continuation execution information indication that comprises in the corresponding synchronizing information of program that comprises in serving with first also can continue to carry out under the situation of this program when switching to second service and reproducing second service, this record and transcriber are based on the element of service identifying information that is obtained, except first service of appointment, also second service is separated into reservation service, and makes the isolated service of recording unit records.
Therefore, the synchronizing information of reference applications and the record service that may switch to simultaneously when comprising the service of application program at record are even when the service switching takes place, also can prevent unusual condition when actual.
In addition, the program that is included in first service that appointment will be recorded also can be included in second service; Synchronizing information can comprise the execution information that continues, and when its indication switches to second service and reproduces second service in reproduction period first service, whether can continue to carry out the program that is included in first service; And, even the continuation execution information indication that comprises in the corresponding synchronizing information of program that comprises in serving with first also can continue to carry out under the situation of this program when switching to second service and reproducing second service, this record and transcriber can be based on the element of service identifying informations that is obtained, except first service of appointment, also second service is separated into reservation service, and makes recording unit records and the corresponding transport stream of the isolated service of institute.
In addition, can only can allow to write down simultaneously under the situation of first service and second service, this record and transcriber are just based on the element of service identifying information that is obtained, except first service of appointment, also second service is separated into reservation service, and makes described recording unit records and the corresponding transport stream of the isolated service of institute.
In addition, under the situation of service log in the recording medium, this record cell can be converted to another kind of form with the file format of service, and has write down the term of validity of this document with this service.
Therefore, for example, program and synchronizing information can be recorded as file; Thereby, can save the space in the recording medium, and this program can not drop into the state that can not continue to carry out when service is switched.
In addition, this record cell can restart the record service when synchronizing information or element of service identifying information are updated at every turn.
Notice that the present invention not only can be implemented as above-mentioned record and transcriber, and the storage medium that can be implemented as record and reproducting method, is used for the program of this method and stores this program.
The further information of relevant present techniques background
The disclosure of the U.S. Provisional Application No.60/751374 that the U.S. Provisional Application No.60/687624 that on June 6th, 2005 submitted to and on December 19th, 2005 submit to comprises specification, accompanying drawing and claims, is all incorporated into herein by reference.
Description of drawings
From the explanation of carrying out below in conjunction with the accompanying drawing that shows specific embodiment of the present invention, these and other objects of the present invention, advantage and characteristic will become apparent.In the accompanying drawing:
Fig. 1 is the structure chart according to broadcast system of the present invention;
Fig. 2 is in cable television system according to the present invention, how to use an example of employed frequency band in the communicating by letter between broadcast system end system and terminal installation;
Fig. 3 is in cable television system according to the present invention, how to use an example of employed frequency band in the communicating by letter between broadcast system end system and terminal installation;
Fig. 4 is in cable television system according to the present invention, how to use an example of employed frequency band in the communicating by letter between broadcast system end system and terminal installation;
Fig. 5 be by the MPEG-2 standard the structure chart of predefined TS grouping;
Fig. 6 is the schematic diagram of mpeg 2 transport stream;
Fig. 7 is subregion (division) example when carrying by the predefined PES grouping of MPEG-2 standard in TS grouping;
Fig. 8 is when the subregion example during by the predefined MPEG-2 segmentation of MPEG-2 standard with a TS transmitted in packets;
Fig. 9 is by the predefined MPEG-2 segmented structure of MPEG-2 standard figure;
Figure 10 is to use the example by the predefined MPEG-2 segmentation of MPEG-2 standard;
Figure 11 is to use the example by the predefined PMT of MPEG-2 standard;
Figure 12 is to use the example by the predefined PAT of MPEG-2 standard;
Figure 13 is the topology example according to the hardware configuration of broadcast recoding of the present invention and transcriber;
Figure 14 is the panel example according to the input unit in the hardware configuration of terminal installation 1200 of the present invention 1310;
Figure 15 is the example that the equipment when record is connected in record according to the present invention and transcriber;
Figure 16 is the example that the equipment when reproducing is connected in record according to the present invention and transcriber;
Figure 17 is the figure that the structure of program stored in terminal installation is shown according to the present invention;
Figure 18 is the example of the EPG that carried out by terminal installation according to the present invention;
Figure 19 is the example of the EPG that carried out by terminal installation according to the present invention;
Figure 20 is the example that is stored in the information in second memory cell according to the present invention;
Figure 21 is the example according to recorded information admin table of the present invention;
Figure 22 is the schematic diagram that the details of the AIT that is stipulated by DVB-MHP according to the present invention is shown;
Figure 23 is the schematic diagram that the file system that sends with the DSMCC form according to the present invention is shown;
Figure 24 is the figure that the structure of program stored in terminal installation is shown according to the present invention;
Figure 25 is the example that the equipment when record is connected in record according to the present invention and transcriber;
Figure 26 is the topology example according to the hardware configuration of broadcast recoding of the present invention and transcriber;
Figure 27 is the example that the equipment when record is connected in record according to the present invention and transcriber;
Figure 28 is the example that the equipment when reproducing is connected in record according to the present invention and transcriber;
Figure 29 is the example according to recorded information admin table of the present invention;
Figure 30 is the exemplary plot that illustrates according to the expansion details of AIT of the present invention;
Figure 31 is the flow chart according to recording process of the present invention;
Figure 32 is the flow chart according to recording process of the present invention;
Figure 33 is the flow chart according to recording process of the present invention;
Figure 34 is the flow chart according to recording process of the present invention;
Figure 35 is the flow chart according to recording process of the present invention;
Figure 36 is the flow chart according to recording process of the present invention;
Figure 37 is the flow chart according to recording process of the present invention;
Figure 38 is the flow chart according to recording process of the present invention; And
Figure 39 is the flow chart according to recording process of the present invention.
Embodiment
According to record of the present invention and transcriber record by video, audio frequency, program and the content that is used to make the synchronizing information of video, audio frequency and Program Synchronization to form, this synchronizing information comprises the execution information that continues, even indication also can continue to carry out this program when this content switches to another content; This device comprises: the storage medium and the content storage unit that are used for memory contents, wherein, described content storage unit can continue to carry out under the situation of this program in the indication of continuation execution information, storage is included in all the elements in the content delivery medium in this storage medium, and in other cases, in described storage medium, only store the content of appointment.
Therefore, when even this program belongs to the sort of type that also can be continued execution when this content switches to another content, all the elements in the content delivery medium all are stored in this storage medium, thereby this program can not fall within the state that can not continue to carry out when switching to another content.
In addition, this content record and transcriber comprise that storage allows the unit holding unit, and it maintains a plurality of contents are stored in permission in storage medium separable storage permission unit; Can continue under the situation of executive program in the indication of continuation execution information, whether content storage unit inquiry allows all the elements of comprising in the memory contents transmission medium, the all the elements that comprise in the content delivery medium under situation about allowing are stored in the storage medium, and in other cases only with the content stores of appointment in storage medium.
Therefore, after allowing to store into all the elements in the content delivery medium in the storage medium, actual storage takes place; So, considered that the capacity of storage medium carries out record, and this program can not fall into the state that can not continue to carry out when switching to another content yet.
And, this content record and transcriber comprise content choice unit holding unit, it maintains, and be used for selecting will be in the separable content choice unit of which content of storage medium storage, and content storage unit only is judged as the content choice unit those content records that will write down in storage medium based on the information of all the elements that comprise in can the given content transmission medium.
Thereby, be not all the elements in the memory contents transport stream, but only with selected content stores in storage medium; Therefore, can keep the space in the storage medium, and this program can not fall within the state that can not continue to carry out when switching to another content yet.
In addition, this content record and transcriber comprise content choice unit holding unit, and it maintains and is used for selecting storing the separable content choice unit of which content at storage medium; In the content choice unit also not based on the information of all the elements that comprise in can the given content transmission medium and specify under the situation of the content that will write down, whether content storage unit inquiry under continuing the situation that the indication of execution information can continue executive program allows all the elements of comprising in the memory contents transmission medium, and all the elements that comprise in the content delivery medium under situation about allowing are stored in the storage medium, in other cases only with the content stores of appointment in storage medium.
Therefore, can specify and be stored in all the elements in the content delivery stream in the storage medium or the selected content of storage only; Therefore, can keep the space in the storage medium, and this program can not fall within the state that can not continue to carry out when switching to another content yet.
In addition, synchronizing information comprises continuation execution information, even its indication also can be carried out this program continuously when content switches to another content; And content appointed information, be used to specify another required content of this program, and, this record and transcriber comprise content storage unit, this content storage unit can continue to carry out under the situation of this program in the indication of continuation execution information, the content stores that the content appointed information is specified in storage medium, and in other cases only with the content stores of appointment in storage medium.
Therefore, can specify another required content of this program; Therefore, can keep the space of storage medium, and this program can not fall within the state that can not continue to carry out when switching to another content yet.
In addition, can continue to carry out under the situation of this program in the indication of continuation execution information, whether this content storage unit inquiry allows to store the content by the appointment of content appointed information, under situation about allowing, will be in storage medium by the content stores of content appointed information appointment, and in other cases only with the content stores of appointment in storage medium.
Therefore, can specify another required content of this program; So, can consider to keep the space in the storage medium and carry out record, and this program can not fall within the state that can not continue to carry out when switching to another content yet.
In addition, except specifying another required content of this program, also can select to want the content of actual storage; Therefore, can keep the space of storage medium, and this program can not fall within the state that can not continue to carry out when switching to another content.
In addition, the also not content-based appointed information in the content choice unit and specifying under the situation of the content that will write down, whether content storage unit allows to store content by the appointment of content appointed information continuing inquiry under the situation that the indication of execution information can continue to carry out this program, and will be in storage medium under situation about allowing by the content stores of content appointed information appointment, and in other cases only with the content stores of appointment in storage medium.
Therefore, when having specified required another content of program, also can select the actual content that will store, even under the situation of chosen content not, can consider retaining space in storage medium yet and carry out record, and this program can not fall within the state that can not continue to carry out when switching to another content.
In addition, when all the elements that comprise in the content delivery medium when content storage unit are stored in the storage medium, directly stored this content delivery medium.
Therefore, when all the elements of comprising in the memory contents transport stream, stored this content delivery stream itself; Therefore, can simplified structure, and this program can not fall within the state that can not continue to carry out when switching to another content yet.
In addition, content storage unit is stored all the elements that meet the following conditions in storage medium: such content comprises the synchronizing information with certain value as element, and at least one continuation execution information indication can continue to carry out this program in this synchronizing information.
Therefore, even during this class method that when having specified this content changing to be different content, also can continue to carry out, will be considered to essential content stores in the content delivery stream in storage medium; So this program can not fall within the state that can not continue to carry out when switching to another content.
In addition, indication can continue to carry out under the situation of this program as the continuation execution information in the synchronizing information of element having given content, the all the elements whether the content storage unit inquiry allows to meet the following conditions are stored in the storage medium: such content comprises the synchronizing information with certain value as element, and at least one continuation execution information indication can continue to carry out this program in this synchronizing information; And, under situation about allowing, the all the elements that meet the following conditions are stored in the storage medium: such content comprises the synchronizing information with certain value as element, and at least one continuation execution information indication can continue to carry out this program in this synchronizing information; And in other cases only with the content stores of appointment in described storage medium.
Therefore, with regard to whether be considered to the storage of reality just to take place after essential content stores obtains allowing in content delivery stream in storage medium; Therefore, can consider to keep the space in the storage medium and carry out record, and this program can not fall within the state that can not continue to carry out when switching to another content yet.
In addition, content storage unit only is judged as the content choice unit content stores that will write down in storage medium based on following information: such information can be specified and be comprised synchronizing information with certain value content as element, and at least one continues the indication of execution information and can continue to carry out this program in this synchronizing information.
Therefore, not to be considered to essential all the elements in the memory contents transport stream, but only with selected content stores in storage medium, so can keep space in the storage medium, and this program can not fall within the state that can not continue to carry out when switching to another content yet.
In addition, also (this information can not specified and be comprised synchronizing information with certain value content as element based on customizing messages in the content choice unit, at least one continuation execution information indication can continue to carry out this program in this synchronizing information) and specify under the situation of the content that will write down, content storage unit can continue to carry out under the situation of this program in the indication of continuation execution information, whether inquiry allows to comprise synchronizing information with certain value (wherein at least one continue the indication of execution information can continue to carry out this program) is stored in the described storage medium as all the elements of element, and under situation about allowing, to comprise synchronizing information with certain value (wherein at least one continue the indication of execution information can continue to carry out this program) and be stored in this storage medium as all the elements of element, and in other cases only with the content stores of appointment in this storage medium.
Therefore, can specify in the storage medium is all the elements of being considered to essential in the memory contents transport stream, or the selected content of storage only, so, can keep the space in the storage medium, and this program can not fall within the state that can not continue to carry out when switching to another content yet.
In addition, when content storage unit is stored in storage medium, with stream format store video and audio frequency, with stored in file format program and the synchronizing information that from stream, extracts.
Therefore, program and synchronizing information are stored as file, thus can keep the space in the storage medium, and this program can not fall within the state that can not continue to carry out when switching to another content yet.
(first embodiment)
Below, the apparatus and method according to the first embodiment of the present invention are described with reference to the accompanying drawings.The present invention is intended to write down and reproduce the content that sends and receive with arbitrary medium; Yet in the present embodiment, system illustrates as example with cable tv broadcast.In the cable tv broadcast system, described in the present invention, usually broadcast recoding and transcriber (record and transcriber) are called terminal installation.
Fig. 1 is the block diagram that the relation between each device of forming broadcast system is shown; This broadcast system is made up of broadcasting station end system (head end) 101, terminal installation A111, terminal installation B112 and terminal installation C113.In wired system, the connection 121 between broadcasting station end system and each terminal installation is wired connections, such as coaxial cable, Connectorized fiber optic cabling etc.In Fig. 1, a broadcasting station end system is connected with three terminal installations, but the number of terminal installation is arbitrarily.
Broadcasting station end system 101 will send to a plurality of terminal installations such as the such information of data of video/audio/be used for data broadcasting with the form of broadcast singal.Use sends this broadcast singal by the frequency in the frequency band of the settings such as law of the country /region of the working specification of broadcast system, broadcast system operation.
Utilize the wired system in the present embodiment, will be divided in the frequency band that uses in the broadcast singal transmission with data details and transmission direction (inbound, departures), and use.
Fig. 2 is the chart that an example of frequency band division is shown.This frequency band roughly is divided into two classes: in band outer (being abbreviated as OOB) and the band.5MHz is assigned as OOB to 130MHz, and it is mainly used in the inbound/outbound data exchange between broadcasting station end system 101 and terminal installation A111, terminal installation B112 and the terminal installation C113.130MHz is assigned as in the band to 864MHz, and it is mainly used in the only broadcasting channel of departures, comprises video/audio.The QPSK modulation type is used for OOB, and QAM64 or QAM256 modulation type are used in the band.The modulation type technology is normally known, and is little with relation of the present invention, thereby omitted detailed description.
Fig. 3 is the example of a more detailed use OOB frequency band.70MHz is used for from the outbound data of broadcasting station end system 101 transmissions to 74MHz, and all terminal installation A111, terminal installation B112 and terminal installation C113 receive identical datas from broadcasting station end system 101.On the other hand, 10.0MHz is used for sending inbound data to broadcasting station end system 101 from terminal installation A111 to 10.1MHz; 10.1MHz is used for sending inbound data to broadcasting station end system 101 from terminal installation B112 to 10.2MHz; 10.2MHz is used for sending inbound data to broadcasting station end system 101 from terminal installation C113 to 10.3MHz.Thus, can send for the unique data of each terminal installation to broadcasting station end system 101 from each terminal installation A111, B112 and C113 independently.
Fig. 4 is an example of using frequency band in the band.150MHz is distributed to television channel 1 and television channel 2 to 156MHz and 156MHz respectively to 162MHz, distribute television channel with the interval of 6MHz thereafter.Beginning with 1MHz from 310MHz is that unit distributes radio channel.Each channel in these channels can be as analog broadcasting or as digital broadcasting.Send digital broadcasting with the TS packet format under the MPEG-2 standard, and except that Voice ﹠ Video, the TV programme organizational information that can also send the data that are used for various digital broadcastings and be used to construct EPG.
Broadcasting station end system 101 uses above-mentioned frequency band that suitable broadcast singal is sent to terminal installation, so it has QPSK modulating unit, QAM modulating unit or the like.In addition, broadcasting station end system 101 has the qpsk demodulator that is used for receiving from terminal installation data.In addition, can think that this broadcasting station end system 101 has the various device relevant with modulating unit and demodulating unit.Yet the present invention relates generally to terminal installation, so omitted detailed description.
In order to receive from broadcasting station end system 101 and to reproduce broadcast singal, terminal installation A111, B112 and C113 have QAM demodulating unit and QPSK demodulating unit.In addition, be unique data in order to send for each terminal installation to broadcasting station end system 101, each terminal installation all has the QPSK demodulating unit.In the present invention, terminal installation is broadcast recoding and transcriber, and its detailed structure is described after a while.
Fig. 5 is the figure that the TS packet configuration is shown.A TS grouping 500 has the length of 188 bytes, and is made up of header 501, self adaptation field 502 and pay(useful) load (payload) 503.Header 501 is preserved the control information of TS grouping, have the length of 4 bytes, and its structure is shown in 504.In header 501, there is individual field list to be shown " Packet ID (packet ID) " (back is called PID), by the value of this PID TS is divided into groups to discern.Self adaptation field 502 is preserved such as the such extraneous information of temporal information.Self adaptation field 502 is not indispensable, and self adaptation field 502 absent variable situations are also arranged.The information of carrying in the TS grouping is preserved in pay(useful) load 503, such as video, audio frequency and datacast data.
Fig. 6 is the schematic diagram of mpeg 2 transport stream.TS is grouped in the pay(useful) load and preserves various information, such as video, audio frequency, be used for data of data broadcasting or the like.PID 100 is preserved in TS grouping 601 and TS grouping 603 in header, and preserves the information about video 1 in pay(useful) load.PID 200 is preserved in TS grouping 602 and TS grouping 605 in header, and preserves the information about data 1 in pay(useful) load.TS grouping 604 is preserved PID 300 at header, and preserves the information about audio frequency 1 in pay(useful) load.The TS that will preserve different types of data in pay(useful) load divides into groups to mix and they are sent continuously as sequence, and this is called as multiplexing.Mpeg 2 transport stream 600 is one TS grouping 601 to 605 is carried out multiplexing structure example.
Information with TS grouping preservation same type of identical PID.Therefore, by receiving multiplexing TS grouping and extracting the information that the TS grouping is preserved at each PID, terminal installation has reproduced video and audio frequency, and has reproduced such as the such data of TV programme organizational information.In Fig. 6, each all carries the information relevant with video 1 TS grouping 601 and TS grouping 603, and TS grouping 602 and TS grouping 605 each all carry the information relevant with data 1.
Here, the form with regard to every kind of data type comprising in the pay(useful) load provides explanation.
Become so-called grouping to flow (Packetized ElementaryStream, PES) Fen Zu form substantially with audio representation video.The PES grouping comprises video information or the audio-frequency information of certain time period, and by receiving the PES grouping, broadcast recoding and transcriber can output to screen and loud speaker with video and the audio-frequency information that comprises in the PES grouping.The broadcasting station ceaselessly sends PES grouping, so for broadcast recoding and transcriber, ceaselessly successively reproducing video and audio frequency.When actual transmissions PES divides into groups, under the situation of size greater than the pay(useful) load of a TS grouping of PES grouping, this PES grouping is divided and is stored in the pay(useful) load of a plurality of TS groupings.
Subregion example when Fig. 7 shows transmission PES grouping.PES grouping 701 is too big, to such an extent as to can't be stored and be carried in the pay(useful) load of single TS grouping, therefore this PES grouping 701 is divided into PES packet partition A702a, PES packet partition B702b and PES packet partition C702c, and is carried in three TS groupings 703 to 705 with identical PID.In fact, video and audio frequency obtain as basic stream (ES), and this is to couple together by the data in a plurality of pay(useful) loads that will be included in a plurality of PES groupings to obtain.The form of basic stream is digitized video and audio frequency, such as defined by MPEG-2 video standard, MPEG-1 and MPEG-2 audio standard etc.
On the other hand, represent such as TV programme organizational information such information and the data that are used for data broadcasting with the form that is called as the MPEG-2 segmentation.When this MPEG-2 segmentation of actual transmissions, have in the MPEG-2 segmentation under the situation of the size also bigger than the pay(useful) load of a TS grouping, this MPEG-2 segmentation is divided and is stored in the pay(useful) load of a plurality of TS groupings.
Fig. 8 shows the subregion example when transmission MPEG-2 segmentation.Because MPEG-2 segmentation 801 is too big, to such an extent as to can not be stored or be carried in the pay(useful) load of single TS grouping.MPEG-2 segmentation 801 is divided into segmentation and regionalization A 802a, segmentation and regionalization B 802b and segmentation and regionalization C 802c, and is carried in three TS groupings 803 to 805 with identical PID.
Fig. 9 has represented this MPEG-2 segmented structure.The MPEG-2 segmentation is constructed to header 901 and pay(useful) load 902.Header 901 is preserved the control information of MPEG-2 segmentation.By header structure 903 these structures of expression.Entrained data in the MPEG-2 segmentation 900 are preserved in pay(useful) load 902.The table_id that occurs in header structure 903 represents the type of MPEG-2 segmentation, and table_id_extension is an employed extended identifier when needing further to distinguish the MPEG-2 segmentation with identical table_id.
The situation of as shown in figure 10 TV transmission program organizational information can be provided as the example of using the MPEG-2 segmentation.In this example, as writing in 1004 row, it is in 64 the MPEG-2 segmentation that demodulation broadcast singal information necessary is written to table_id in the header structure 903, and the PID that this MPEG-2 segmentation also is carried at distribution is in 16 the TS grouping.
Under the situation of MPEG-2 segmentation, there is not the PES form.For this reason, basic stream (ES) is by the series connection of the pay(useful) load of the TS grouping of identical PID sign in the mpeg 2 transport stream.For example, in Fig. 8, the TS grouping 803 to 805 of wherein dividing and carrying the MPEG-2 segmentation is all identified by identical PID 200.Can think that this is the ES that carries MPEG-2 segmentation 801.
In mpeg 2 transport stream, also there is the notion that is called program.This listing is shown the set of ES, and it is used for handling together the situation of a plurality of ES.When using program, the datacast data that can handle video/audio together and enclose.For example, handle at the same time under the situation of the video/audio that will reproduce,, can see that broadcast recoding and transcriber should reproduce this two ES simultaneously, with as a TV programme by video ES and audio ES are formed a program.
In order to represent program, two tables that are called Program Map Table (PMT) and Program Association Table (PAT) have been used among the MPEG-2.At ISO/IEC 13818-1, can find detailed description in " MPEG-2 system " standard.Following brief description PMT and PAT.
PMT is the table that has comprised the program number in the mpeg 2 transport stream.PMT is configured to a MPEG-2 segmentation, and table_id is 2.PMT preserves the program code of the additional information be used to identify program and this program, and the relevant information that belongs to the ES of this program.
Figure 11 has provided the example of PMT.The 1100th, program number.In same transport stream,, and be used to discern PMT with the unique program of distributing to of this program number.Row 1111 to 1114 expressions are about the information of single ES.Row 1101 are types of ES, have wherein specified " video ", " audio frequency ", " data " or the like.Row 1102 are the PID that form the TS grouping of this ES.Row 1103 are the additional informations about ES.For example, the ES shown in 1111 that is expert at is an audio ES, and is that 5011 TS grouping is carried by PID.
Only there is one table in PAT in mpeg 2 transport stream.PAT is configured to a MPEG-2 segmentation, and table_id is 0, and is that 0 TS grouping is carried by PID.PAT preserves the transport_stream_id that is used to identify mpeg 2 transport stream, and the relevant information that is illustrated in all PMT of existing program in this mpeg 2 transport stream.
Figure 12 has provided the example of PAT.The 1200th, transport_stream_id.Transport_stream_id is used to discern mpeg 2 transport stream.The information of the relevant program of row 1211 to 1213 expressions.Row 1201 are program numbers.Row 1202 are PID of the TS grouping of transmission and the corresponding PMT of this program.For example, the program number of the PMT of this program shown in the row 1211 is 101, and is to carry corresponding PMT in 501 the TS grouping at PID.
Reproduce at terminal installation under the situation of certain program, this terminal installation has used PAT and PMT, and has specified video and the audio frequency of forming this program, and reproduces this video and audio frequency.For example, for carrying PAT among Figure 12 and the mpeg 2 transport stream of the PMT among Figure 11, belong in reproduction under the situation of video that program number is 101 program and audio frequency, following processing procedure is arranged.At first, from being the TS grouping of " 0 ", PID obtains the PAT for the MPEG-2 segment transmissions of " 0 " as table_id.Search PAT is so that seeking program number is the program of " 101 ", and acquisition row 1211.From row 1211, obtained to carry the PID " 501 " of program number for the TS grouping of the PMT of the program of " 101 ".Then, from being the TS grouping of " 501 ", PID obtains the PMT for the MPEG-2 segment transmissions of " 2 " as table_id.From this PMT, obtain audio ES information (row 1111) and video ES information (row 1112).The PID " 5011 " of the TS grouping of audio ES is being carried in acquisition from row 1111.In addition, carrying the PID " 5012 " of the TS grouping of video ES from row 1112 acquisitions.Then, from PID is the TS grouping of " 5011 ", obtain audio frequency PES grouping, from PID be the TS grouping of " 5012 ", obtain video PES and divide into groups.By like this, can obtain video and the audio ES grouping that to reproduce, and can reproduce video and the audio frequency of forming program number 101.
Notice that mpeg 2 transport stream is through scrambling in some cases.This is a kind of setting that is called conditional access system.For example, by scrambling is carried out in the PES grouping that carries certain video/audio, only can just can watch this video and audio frequency to its specific beholder who carries out descrambling.For descrambling and watch this video and audio frequency, the beholder must use the device that is called descrambler that this video and audio frequency are carried out descrambling.For example, in the terminal installation of OCAP compatibility, use a kind of card type adapter with inner descrambler.Cable television operators will be configured to can the descrambling specific program adapter distribute to each beholder, the beholder inserts terminal installation with this adapter.In case do like this, this adapter just comes appointed program is carried out descrambling based on the such descrambling information of contract information such as descramble key and each contract holder.Method of the method for descrambling, acquisition descramble key or the like depends on adapter, and to not influence of realization of the present invention.
So far, carried out brief description about the MPEG-2 standard; Below, provide the specific definition of term.In the present invention, there are two class terms " program ".One class is " program " that appears in the MPEG-2 standard, another kind of " program " that refers to the code collection of being carried out by CPU.Because the former is the synonym of used term " service " in the working specification, later on for fear of obscuring, the former is called " service ", the latter simply is called " program ".In addition, with regard to the latter, " program " write with Java language specially is called " java applet ".
According to the present invention, provided explanation about several general informations of appointment in the MPEG-2 standard.Below, describe used broadcast recoding and reproducing terminal among the present invention in detail.
Figure 13 is the block diagram that illustrates according to the typical hardware structure of the broadcast recoding of present embodiment and transcriber; In other words, terminal installation shown in the presentation graphs 1 111,112 and 113 concrete internal structure.The 1300th, broadcast recoding and transcriber, it is constructed to: tuner 1301; TS decoder (TS demodulation multiplexer) 1302; AV decoder 1303; Loud speaker 1304; Display 1305; CPU 1306; Second memory cell 1307; Main memory unit 1308; ROM 1309; Input unit 1310; Adapter 1311; AV encoder 1312; And multiplexer (mpeg 2 transport stream multiplexer etc.) 1313.Notice that present embodiment is by broadcast recoding and the reproducing terminal realized by the OCAP-DVR standard are expanded acquisition, and its particular hardware configuration almost is equal to the required structure of OCAP-DVR standard.
The PES grouping of TS decoder 1302 isolated videos and audio frequency is outputed to AV decoder 1303.In addition, the 1302 isolated MPEG-2 segmentations of TS decoder are sent to main memory unit 1308 by direct memory access (DMA) (DMA), and the uses of carrying out by CPU 1306 such as program.
In addition, adapter 1311 also carries out format conversion to the data that sent in the OOB frequency range.The information that will send in OOB is modulated to the QPSK modulation format.With regard to the departures transmission, qpsk demodulator 1301b carries out demodulation to the output signal that sends from broadcasting station end system 101, and the bit stream that produces is input in the adapter 1311.Extract by CPU 1306 specified message in the various information that adapter 1311 comprises from this bit stream, be can be with this information translation, and provide it to CPU 1306 by the form of interpretation of programs of operation among the CPU 1306.On the other hand, with regard to inbound transmission, CPU 1306 imports the information that will send to broadcasting station end system 101 in the adapter 1311.Adapter 1311 will be can be by the form of broadcasting station end system 101 explanations from the information translation of CPU1306 input, and be entered among the qpsk modulator 1301c.Qpsk modulator 1301c modulates carrying out QPSK-from the information of adapter 1311 inputs, and sends it to broadcasting station end system 101.
Employed CableCARD in U.S.'s wired system was called deployment point (POD) in the past, and a concrete example that can be used as adapter 1311 provides.
Multiplexer 1313 is a kind of like this equipment, and it has and will filter and the privately owned segment data of separating is multiplexed with the function of mpeg 2 transport stream from the video of AV encoder 1312 input and audio frequency and by the TS decoder.Can realize multiplexer 1313 with technique known.
Below, describe above-mentioned broadcast recoding and transcriber in detail and will be included in the processing procedure of service log in second memory cell 1307 in the broadcast wave, and the processing procedure of this service read and reproduce continuously by this broadcast recoding and transcriber from second memory cell 1307.
At first, explanation will be included in the processing procedure of service log in second memory cell 1307 in the broadcast wave.
Figure 15 shows the physical connection order that is illustrated in this each equipment of viability of record, the concept nature statement of handling details and I/O data format.The 1500th, terminal installation, it has: tuner 1301; Adapter 1311; Descrambler 1501; TS decoder 1302; PID filter 1502; Section filter 1503; AV decoder 1303; Main memory unit 1308; AV encoder 1312; Multiplexer 1313; And recording areas 1504.Have identical functions with component units that Figure 13 has an identical numbering among Figure 15, therefore omitted explanation.
At first, tuner 1301 carries out tuning according to the tuning instruction that CPU 1306 provides to broadcast wave.1301 pairs of these broadcast waves of tuner carry out demodulation and mpeg 2 transport stream are input to adapter 1311.
The descrambler 1501 that is positioned at adapter 1311 inside carries out descrambling based on each beholder's condition access information to mpeg 2 transport stream.The mpeg 2 transport stream of descrambling is imported in the TS decoder.
In TS decoder 1302, there are the two class devices that are used to handle mpeg 2 transport stream: PID filter 1502 and section filter 1503.
The MPEG-2 segmentation that is input in the main storage unit 1308 is imported in the multiplexer 1313.
Video PES grouping and audio frequency PES grouping that TS decoder 1302 extracts are imported in the AV decoder 1303.
AV decoder decode video PES grouping and converting video are entered in the AV encoder 1312.The AV decoder is decoded audio PES grouping and conversion audio frequency also, is entered in the AV encoder 1312.
Multiplexer 1313 will be multiplexed into from the MPEG-2 segmentation of main memory unit 1308 inputs from the MPEG video and the mpeg audio of AV encoder input, thereby has generated mpeg 2 transport stream.The mpeg 2 transport stream that is generated is recorded in the recording areas 1504.
Then, the continuous processing procedure of serving and reproducing of reading from second memory cell 1307 is described.
Figure 16 shows the physical connection order that is illustrated in this each equipment of viability of reproduction, the concept nature statement of handling details and I/O data format.The 1600th, terminal installation, it has: recording areas 1504; TS decoder 1302; PID filter 1502; Section filter 1503; AV decoder 1303; Loud speaker 1304; Display 1305; And main memory unit 1308.Have same function with component units that Figure 13 has an identical numbering among Figure 16, therefore omitted explanation.
With order illustrated in fig. 15, the mpeg 2 transport stream that is recorded in the recording areas 1504 is input in the TS decoder 1302.
Then, the PID filter in the TS decoder 1,302 1502 extracts and has video PES and the audio frequency PES that CPU 1306 specifies PID.The PES grouping of being extracted is imported in the AV decoder 1303.Perhaps, PID filter 1502 in the TS decoder 1302 and section filter 1503 extractions have the MPEG-2 segmentation of the PID and the table_id of CPU 1306 appointments.The MPEG-2 segmentation of being extracted is transferred in the main memory unit 1308 by DMA.
The video PES and the audio frequency PES that are input in the AV decoder 1303 are decoded, and are outputted as audio signal and vision signal.After this, this audio signal and vision signal are input in display 1305 and the loud speaker 1304, thereby reproduce this Voice ﹠ Video.
Being input to MPEG-2 segmentation in the main memory unit 1308 is imported among the CPU 1306 and in due course and is used by software.
An example of relevant hardware configuration of the present invention so far, has been described.After this, major function of the present invention is described, i.e. record and reproduction of serving by java applet control.
Service log among the present invention refers to synchronizing information of the video that will be comprised in this service, audio frequency, java applet, java applet etc. and records such as in the such any storage medium of hard disk, Blu-ray Disc (BD), digital versatile disc (DVD) and secure digital (SD) storage card.In structure chart shown in Figure 13, these storage mediums are represented as second memory cell 1307.The service reproduction refers to based on the synchronizing information execution of java applet and reproduces video, audio frequency and the java applet that is recorded in the recording medium.Require the reproduction result of the service of having write down almost to be equal to once receiving the directly result of this service of reproduction of broadcast wave.
Figure 17 is record and the structure chart that reproduces the required program of this service, and it is the software that is recorded among the ROM 1309.
Program 1700 is made up of subprogram OS 1701, EPG 1702, Java VM 1703 and Java storehouse 1704.
OS 1701 is an operating system; Linux, Windows etc. are as example.OS 1701 is made up of following: be used to carry out the kernel 1701a such as other such subprogram of EPG 1702 and Java VM 1703; And subprogram is come the storehouse 1701b of the component units of control terminal device 1300 with it.Kernel 1701a is a known technology, has therefore omitted detailed description.
For example, storehouse 1701b provides the tuber function that is used to control tuner.Storehouse 1701b accepts to comprise the tuning information of frequency from another subprogram, and provides it to tuner 1301.Tuner 1301 carries out demodulation process based on the tuning information that is provided, and the mpeg 2 transport stream after the demodulation can be passed to TS decoder 1302.As a result of, other subprogram can be controlled tuner 1301 by storehouse 1701b.
In addition, storehouse 1701b is provided for the channel information of unique identification channel.Figure 20 shows an example of channel information.Use that frequency range sends channel information in OOB or the band, it is converted to chart format by adapter 1311, and is stored in the temporary storage cell that can be visited by this storehouse.Row 2001 is channel identifiers, and it is equal to for example by the outer defined source_ID of information on services that transmits of the band of SCTE65 digital cable TV.Row 2002 is channel names, and it is equal to the source_name in same SCTE65 standard.Row 2003 is tuning informations, and it provides the information such as frequency, transmission rate, modulation format etc. to tuner 1301.Row 2004 is the program numbers that are used to specify PMT.For example, row 2011 are one group of information on services, comprise in channel identifier " 1 ", channel name " channel 1 ", the tuning information frequency " 150MHz ... ", and program number " 101 ".
On this basis, storehouse 1701b can also set the parameter that is used to control hardware component units shown in Figure 13.Describe each function after a while in detail.
Java VM 1701 is Java Virtual Machines, and it sequentially analyzes and carry out the program with Java (TM) language compilation.Be compiled as the intermediate code that does not rely on hardware with the Java language written program, be called bytecode.Java Virtual Machine is an interpreter of carrying out this bytecode.JavaVM 1703 carries out the Java storehouse 1704 of writing with Java language.The detailed content of Java language has been described in such as " Java language standard " (ISBN 0-201-63451-1) and " Java Virtual Machine standard " publication (ISBN0-201-63451-X).In addition, can call by Java local interface (JNI) and be not other subprogram of writing with Java language, or by such subroutine call.Can in books such as " Java local interfaces ", find the detailed content of relevant JNI.
Java storehouse 1704 is the storehouses of writing with Java language, for the function of broadcast recoding and transcriber is controlled, calls this storehouse by java applet.Yet, the situation that must use the subprogram of writing such as the so non-Java language of the storehouse 1701b of OS 1701 is also arranged.Java applet can be by the function that Java API (API) that Java storehouse 1704 had uses Java storehouse 1740 to be provided be provided.
Tuner 1704c is the Java storehouse that is used for controlling receiver turning 1301a in the band of broadcast recoding and reproducing terminal.When java applet will comprise that the tuning information of frequency is passed to tuner 1704c, tuner 1704c called the tuber function of storehouse 1701b with this information, and the result is, can control the work of receiver turning 1301a in the band of broadcast recoding and reproducing terminal.
SF 1704e is the Java storehouse that is used to control the function of the PID filter 1502 of broadcast recoding and reproducing terminal and section filter 1503.When java applet will be passed to SF 1704e such as the filtercondition of PID, table_id etc., SF 1704e uses the function of storehouse 1701b based on these conditions, set filtercondition and control PID filter 1502 and section filter 1503, obtain the MPEG-2 segmentation of satisfying the expection filtercondition, and the java applet of setting filtercondition is passed in this MPEG-2 segmentation.
DSM-CC 1704d is the Java storehouse that is used to visit the file system of DSM-CC object carousel (object carousel).The DSM-CC object carousel is included in the MPEG-2 segmentation that is obtained by SF 1704e.DSM-CC is by ISO/IEC 13818-6 standard definition, and is to be used to use the MPEG-2 segmentation to send the mechanism of any file.By using this, can send file to terminal from the broadcasting station.Based on DSM-CC identifier and file identifier by appointments such as java applets, DSM-CC 1704d uses SF 1704e and obtains the MPEG-2 segmentation, obtain file, and this document is exported to main memory unit 1308, second memory cell 1307 etc. based on ISO/IEC 13818-6 standard.Detailed method and the present invention of realizing DSM-CC are irrelevant, have therefore omitted details.
AM 1704b provides the application manager of the function of the execution that is used for the java applet that management service comprises and termination.AM 1704b extracts the java applet be multiplexed into by in the specified channel of the mpeg 2 transport stream of appointment, and makes the java applet that is extracted carry out or stop according to multiplexing synchronizing information separately.The java class file of this java applet is multiplexed in the mpeg 2 transport stream with forenamed DSM-CC form.In addition, the synchronizing information of this java applet is the form that is called AIT, and is multiplexed in this mpeg 2 transport stream.AIT is the acronym of application information table, and as defined in the 10th trifle of DVB-MHP standard (ETSITS101812 DVB-MHP standard V1.0.2), it is that table_id is the MPEG-2 segmentation of " 0x74 ".In the explanation of present embodiment, used AIT is the revision of the version of DVB-MHP normalized definition.
Figure 24 shows the internal structure of AM 1704b.AM 1704b is constructed to AIT monitoring unit 2402 and application state management unit 2401.
The update mode of 2402 couples of AIT of AIT monitoring unit is monitored, with reproduce in service and during record from the privately owned segmentation of the mpeg 2 transport stream of TS decoder output and channel identifier as input.At first, AIT monitoring unit 2402 as keyword channel searching information in the 1701b of storehouse, and obtains the program number of respective service with the specified channel identifier.Then, use SF 1704e etc., from mpeg 2 transport stream, obtain PAT.Then, the PID of the corresponding PMT of program number that from the information of PMT, obtains and obtained.Reuse SF1704e, obtain actual PMT.The PMT that is obtained is a form shown in Figure 11, and with " data " as flow identifier and with " AIT " PID of the basic stream of information as a supplement.In addition, when the table_ID " 0x74 " of PID that obtains now and AIT is offered SF 1701e as filtercondition, just obtained actual AIT.
Figure 22 is the chart of the example of schematically illustrated AIT information.The version of 2200 these AIT of expression of AIT version number.The version of AIT is high more, and AIT is new more.The AIT of identical AIT version is repeated to receive, but because obtained an AIT, so the AIT of identical AIT version is ignored and no longer obtained to AIT monitoring unit 2402, only obtains the AIT newer than acquired AIT.Note, at this moment, the edition upgrading of PAT and PMT might occur.Therefore, constantly whether monitoring edition upgrading occurred in PAT and PMT, under PAT or the actual situation that edition upgrading occurs of PMT, must obtain actual AIT again by forenamed method based on the PAT and the PMT of edition upgrading.AIT monitoring unit 2402 is exported to the new AIT that is obtained of each AIT application state management unit 2401 and has been write down services selection unit 2404.Row 2201 are identifiers of java applet.According to the MHP standard, this identifier is defined as application program ID.
Notice that in this case, a kind of configuration can be the situation that stops java applet.Here, a kind ofly only can carry out the example that EPG that selectivity reproduces uses the java applet that can be used as service_bound_flag=0 and provide specified services.In other words, use by the identical EPG that in all services that will optionally reproduce, comprises service_bound_flag=0, all use under the situation about being reproduced selectively in each service, can not stop continuous this EPG that carries out in ground and use according to this EPG.Row 2211,2212,2213 and 2214 is multipacket messages of java applet.Java applet by row 2211 definition is the combination of java applet identifier " 0x3221 ", control information " startup automatically ", DSM-CC identifier " 1 " and program name " a/TopXlet ".
In the row 2212 java applet of definition be comprise that java applet identifier " 0x3222 ", control information " present ", DSM-CC identifier " 1 " and program name " b/GameXlet " one group.Here, three java applets by row 2211,2212 and 2214 definition have identical DSM-CC identifier.This just represents that these three java applets are included in the file system with DSM-CC form coding.Here, stipulated four category informations, but in fact, defined the more information type at java applet.Details can be consulted the DVB-MHP standard.
The details of the AIT after the renewal of AIT monitoring unit 2402 outputs is analyzed in application state management unit 2401, and the executing state of managing this java applet based on these details of this AIT.
At first, application state management unit 2401 finds control information from AIT inside be the java applet of " starting automatically ", and extract corresponding D SM-CC identifier and java applet name.With reference to Figure 22, AM 1704b extracts java applet from row 2211, and obtains DSM-CC identifier " 1 " and java applet name " a/TopXlet ".Then, application state management unit 2401 uses the DSM-CC identifier that obtains from AIT so that visit DSM-CC1704d, and can obtain the file that is stored in this java applet in the DSM-CC file system.This document is stored in main memory unit 1308, second memory cell 1307 etc.After this, from the TS of mpeg 2 transport stream grouping, obtain such as the such data of file system and with these data and be saved in, this is called download such as in the such storage device of main memory unit 1308 and second memory cell 1307.
Figure 23 is the example of downloaded files system.In the figure, circle is represented catalogue, and square representation file.The 2301st, root, the 2302nd, catalogue " a ", the 2303rd, catalogue " b ", the 2304th, file " TopXlet.class ", the 2305th, file " GameXlet.class ", the 2306th, catalogue " z ", the 2307th, file " MusicXlet.class ", and 2308 are file " StudyXlet.class ".
Then, in the file system of application state management unit 2401 from download to main memory unit 1308, the java applet that will carry out is passed to Java VM 1703.Here, when the java applet that will carry out was called " A/TopXlet ", file " a/TopXlet.class " was this file that will carry out, wherein " .class " is added to the end of this java applet name."/" is the separator between path and the filename, and with reference to Figure 23, file 2304 is the java applets that be performed.In Java VM, this document is carried out as java applet.
At every turn when 2402 outputs of AIT monitoring unit had the AIT of new AIT version, these AIT were analyzed in application state management unit 2401, and change the executing state of new java applet.
JMF 1704a controlling packet is contained in the video in the service and the reproduction of audio frequency.Specifically, when reproducing this service, JMF 1704a makes designated ES and the audio ES since the mpeg 2 transport stream of TS decoder output to be imported in the AV decoder.
The input of JMF 1704a is the channel identifier of the channel that will reproduce.At first, JMF1704a as keyword channel searching information in the 1701b of storehouse, and obtains program number with the channel identifier of appointment.Then, use SF 1704e etc., from mpeg 2 transport stream, obtained PAT.Then, the PID of the corresponding PMT of program number that from the information of PMT, obtains and obtained.Reuse SF 1704, obtain actual PMT.The PMT that is obtained is a form shown in Figure 11, and with " video " and " audio frequency " PID as the basic stream of flow identifier.When JMF 1704a is arranged on these PID by storehouse 1701b in the PID filter 1502 of TS decoder 1302, by AV decoder 1303 video ES and the audio ES of multiplexing these PID on it are decoded, as Figure 15 or shown in Figure 16.Reproduce the Voice ﹠ Video of being decoded by loud speaker 1304 and display 1305.
Write down services selection handling procedure (handler) manager 1704g the registration and the execution of writing down the services selection handling procedure are handled, the described services selection handling procedure that write down is used to determine whether also write down simultaneously another service except service specified when record.Figure 24 shows the internal structure that writes down services selection handling procedure manager 1704g.Having write down services selection handling procedure manager 1704g comprises: write down services selection handling procedure registering unit 2406; Write down services selection handling procedure call unit 2405; Many service logs allow handling procedure registering unit 2408; And many service logs allow handling procedure call unit 2407.
Having write down services selection handling procedure registering unit 2406 provides registration to write down the Java API of services selection handling procedure.This Java API is the form of registerHandler (Handler h), and has specified in h and write down the services selection handling procedure.When calling this API, the specified services selection of record handling procedure is stored in the main memory unit 1308.
Having write down the services selection handling procedure is the part of the java applet of download, and it is with Java language written program code.Write down the return value that the services selection handling procedure has the Handler.notify method, this method has array PMT[] (AIT ait, PMTpmt, PMT pmt[]).Parameters ai t is the AIT that comprises the service that will write down; Parameter p mt is the PMT of the service of indicating to write down; Parameter p mt[] be the PMT group that will write down simultaneously.These parameters are transferred to and are write down services selection handling procedure call unit 2405 from writing down services selection unit 2404.The java applet of downloading is with reference to the information of these parameters, the service that selection will be write down simultaneously with former service, and with it as return value PMT[] return.Notice that return value has write down the services selection handling procedure for empty expression and do not specified the service of writing down wanted, and the selection to the service that will write down is left for record management server 1704h.
Write down services selection handling procedure call unit 2405 from the PMT of the service of writing down services selection unit 2404 and receiving the AIT that comprises the service that will write down, indicating to write down and with corresponding all PMT of the service that will write down simultaneously.Then, write down services selection handling procedure call unit 2405 and be invoked at the notify method of registering in the main memory unit that writes down the services selection handling procedure with those information.After this, having write down services selection handling procedure call unit 2405 notifies this to write down the return value PMT[of services selection handling procedure to writing down services selection unit 2404].
Many service logs allow handling procedure registering unit 2408 to provide the many service logs of registration to allow the Java API of handling procedure.This Java API is the form of registerHandler (AllowHandler h), and allows handling procedure to be appointed as h many service logs.When calling this API, allow handling procedures to be stored in the main memory unit 1308 the many service logs of appointment.
It is the part of the java applet of download that many service logs allow handling procedure, and is with Java language written program code.Many service logs allow handling procedure will have the method Handler.allowMultiServicRec () of Boolean as return value.When calling this method, the java applet of download judges whether to allow to write down a plurality of services simultaneously with original service, and it is returned as return value.Return value is that true time represents to allow to write down simultaneously a plurality of services.Return value is that fictitious time represents not allow to write down simultaneously a plurality of services, can only write down service specified separately.
One receives many service logs and allows to judge request from writing down services selection unit 2404, and many service logs that many service logs allow handling procedure call units 2407 just to be invoked to register in the main storage unit allow the allowMultiServiceRec method of handling procedures.After this, many service logs allow handling procedure call unit 2407 to notify many service logs to allow the return value of handling procedure to writing down services selection unit 2404.
Record management server 1704h will comprise that the mpeg 2 transport stream of service specified is recorded in second memory cell.Figure 24 shows the internal structure of record management server 1704h.Record management server 1704h comprises record registering unit 2403 and has write down services selection unit 2404.Record registering unit 2403 is input with channel identifier, zero-time and concluding time, only writes down the zero-time of specified service and the interval between the concluding time in second memory cell 1307.Record registering unit 2403 is the Java API that are used to write down registration, and it has record (int source_id, Time start, Time end).Source_id has specified channel identifier, and start has specified the zero-time of record, and end has specified the concluding time of record.In addition, record registering unit 2403 is also accepted the record register requirement from non-java applet.For example, can be from EPG 1702 specified channel identifiers, zero-time and concluding time.When having carried out the record registration, record registering unit 2403 is waited for.
After this, in case arrive record start time special time before, EPG 1702 just provides the channel identifier of appointment, record start time and record end time to writing down services selection unit 2404, and this service of request record.Here, this special time can be a random time, but wishes that it is to have write down the time quantum that record preprocessing can be finished in services selection unit 2404, and is as described below.Write down services selection unit 2404 based on specified channel identifier, record start time and record end time, with this service log in second memory cell.
At first, in second memory cell 1307, write down services selection unit 2404 and guaranteed a recording areas 1504, this recording areas is used to write down the mpeg 2 transport stream from the zero-time of appointment to the concluding time of appointment.Medium identifier is offered the recording areas of being guaranteed.Then,, write down services selection unit 2404 and from the channel information that storehouse 1701b is had, obtained tuning information as keyword with channel identifier corresponding to this channel identifier.After this, when writing down services selection unit 2404 and provide this tuning information for tuner 1704c, tuner 1704c begins to carry out tuning.Here, tuning information is the information that can specify such as frequency, modulator approach etc.In addition, as shown in figure 15, the input and output of hardware component units are provided with, make mpeg 2 transport stream to be input in the TS decoder by adapter 1311.
Then, use SF 1704e, write down services selection unit 2404 and from mpeg 2 transport stream, obtained PAT by tuning acquisition.After this, from this PAT, obtain the PID of PMT, and use SF 1704e, obtain all PMT in the mpeg 2 transport stream.In addition, write down services selection unit 2404 and from the 1701b of storehouse, searched for and the specified corresponding program number of channel identifier, and checked corresponding PMT.Note, in mpeg standard, the version of can upgrade PAT and PMT.Therefore, having write down services selection unit 2404 constantly filters and monitors PAT and PMT; After the version of PAT or PMT obtains upgrading, repeat above-mentioned processing procedure, and obtained PMT all in this mpeg 2 transport stream and the PMT of the service that will write down.
In recording process, in case receive about having the upgrading notice of the new AIT of version afterwards from AIT monitoring unit 2402, or in case detect the edition upgrading of PAT or PMT, write down services selection unit 2404 just to write down services selection handling procedure call unit 2405 notify up-to-date AIT, by the PMT of the service that will write down of channel identifier (it is again by record registering unit 2403 appointments) appointment and as all PMT in the mpeg 2 transport stream of the service of record simultaneously, and request call has write down the services selection handling procedure.Then, as noted earlier, write down that services selection handling procedure call unit 2405 will write down and the return value of reproduction processes program Notification Method returns to and writes down services selection unit 2404.
If return the PMT array from writing down services selection handling procedure call unit 2405, then write down the service that specified pmt table shows simultaneously.All ES that represent in the PMT array (in other words, audio frequency, video) and composition are set in the PID filter 1502 and section filter 1503 of TS decoder about all PID and the table_id of the segmentation ES of the service of all PMT.Yet, in second memory cell 1307, have under the situation of remaining space seldom, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, if return " sky ", then write down the definite through the following steps service that will write down simultaneously in services selection unit 2404 from writing down services selection handling procedure call unit 2405.
At first, write down services selection unit 2404, and checked the service_bound_flag that is included in all java applets in this service with reference to AIT.
If for all java applets, service_bound_flag=1 has then write down services selection unit 2404 and has only write down the service that will write down by the channel identifier appointment.In other words, all ES (in other words, audio frequency, video) that represent among the PMT of the service that write down and all PID and the table_id that forms the segmentation ES of this service are set in the PID of TS decoder filter 1502 and section filter 1503.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, under the situation of the java applet that service_bound_flag=0 is arranged, write down services selection unit 2404 and at first allowed 2407 requests of handling procedure call unit to judge whether to allow a plurality of services of record to many service logs.When many service logs allow handling procedure call unit 2407 to return " vacation ", carry out described processing procedure under the service_bournd_flag=1 situation, only record is by the specified service that will write down of channel identifier.When many service logs allow handling procedure call unit 2407 to return " very ", all services in the services selection unit 2404 record mpeg 2 transport streams have been write down.In other words, all ES that represent among all PMT in mpeg 2 transport stream (in other words, audio frequency, video) and form all PID and table_id about the segmentation ES of the service of all PMT, be set in the PID filter 1502 and section filter 1503 of TS decoder.Yet, in second memory cell 1307, have seldom under the remaining space situation, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307 by storehouse 1701b, and the PID filter 1502 and the section filter 1503 of TS decoder are set, so that only the audio/video ES and the branch segment record of this remaining space advance in second memory cell 1307 writing down into.Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
Be desirably in finish before the specified record start time aforesaid, occur in the preliminary treatment before actual the record.Can be after the zero-time of appointment with this service log in recording areas 1504.
After this,, write down the tuning processing that services selection unit 2404 stops tuner 1704c, and made mpeg 2 transport stream write end in the recording areas 1504 when arriving specified record end during the time.In addition, create recorded information admin table as shown in figure 21, as the management information of the mpeg 2 transport stream that writes down before.
Figure 21 is the example of the recorded information admin table that manages of information such as recorded information that are used for the recording areas 1504 that is recorded in second memory cell 1307.Write down this recorded information with chart format.Row 2101 are record identifiers.Row 2102 are to specify the channel identifier that will be recorded.Row 2103 are corresponding program numbers.Row 2104 are the record start time of this service, and row 2105 are the record end time of this service.Row 2106 are sign medium identifiers as the mpeg 2 transport stream of service log.Every row of row 2111 to 2112 is each record identifier, channel identifier, program number, zero-time, concluding time and medium identifier one groups.For example, row 2111 illustrates record identifier " 000 ", channel identifier " 2 ", program number " 102 ", zero-time " 2005/03/30 11:00 ", concluding time " 2005/03/3012:00 " and medium identifier " TS_001 ".
Service managerZ-HU 1704f manages the reproduction that is recorded in the service in the mpeg 2 transport stream in second memory cell 1307, and perhaps the reproduction to the service from the mpeg 2 transport stream of adapter 1311 inputs manages.
Below, the processing procedure under the situation that the reproduction that is recorded in the service that comprises in the mpeg 2 transport stream in second memory cell 1307 is managed is described.This equates the service of having write down is reproduced.In this case, service managerZ-HU 1704f with record identifier as input.Only will reproduce and be recorded in second memory cell 1307 and by this record identifier service specified.At first, with reference to the recorded information admin table of being created by record management server 1704h, service managerZ-HU 1704f is by the record identifier of appointment, the channel identifier of the service that acquisition will be reproduced and medium identifier.Then, service managerZ-HU 1704f orders second memory cell 1307 to export to TS decoder 1302 by the mpeg 2 transport stream of the medium identifier appointment that is obtained by storehouse 1701b.In addition, service managerZ-HU 1704f sets the output destination of each hardware component units by storehouse 1701b, so that flow through path shown in Figure 16.After this, second memory cell 1307 is offered JMF 1704a with the position as this mpeg 2 transport stream, and the channel identifier that will reproduce is provided.Then, by above-mentioned processing procedure, JMF 1704a begins multiplexing Voice ﹠ Video in the mpeg 2 transport stream of second memory cell, 1307 outputs is reproduced.In addition, the channel identifier that will reproduce offers the AIT monitoring unit 2402 of AM 1704b.Then, according to passing through TS decoder 1302 multiplexing AIT from the mpeg 2 transport stream of second memory cell, 1307 outputs, AM1704b begins to carry out and stops multiplexing java applet in identical mpeg 2 transport stream.After this, continue to reproduce this service, finish up to mpeg 2 transport stream from 1307 outputs of second memory cell.
On the other hand, the following describes the situation that the service in the mpeg 2 transport stream of adapter 1311 inputs is reproduced.This is corresponding to directly reproducing service from broadcast wave.In this case, service managerZ-HU 1704f will reproduce the channel identifier of service as input.Service managerZ-HU 1704f is by storehouse 1701, and order will output to TS decoder 1302 from the mpeg 2 transport stream that the adapter 1311 of Figure 15 is exported.In addition, by storehouse 1701b, service managerZ-HU 1704f sets the output destination of each component units, so that flow through path shown in Figure 16.After this, adapter 1311 is offered the position of JMF 1704a as this mpeg 2 transport stream, and the channel identifier that will reproduce is provided.Then, by above-mentioned processing procedure, JMF 1704a begins multiplexing Voice ﹠ Video in the mpeg 2 transport stream of adapter 1311 outputs is reproduced.In addition, adapter 1311 is offered the position of AM 1704b as this mpeg 2 transport stream, and the channel identifier that will reproduce is provided.Then, at the AIT from the mpeg 2 transport stream of adapter 1311 outputs, AM 1704b begins to carry out and stops multiplexing at the java applet from the mpeg 2 transport stream of second memory cell, 1307 outputs according to multiplexing.After this, continue to reproduce this service, finish up to mpeg 2 transport stream from 1307 outputs of second memory cell.
EPG 1702 is electronic program guidess, and its function is to use the family to select the TV programme that will write down and reproduce.The routine reproduction of being undertaken by the reception broadcast wave has departed from the field of the invention, so omitted explanation.
Under the situation of recording television programs, EPG 1702 shows the tabulation of the TV programme of having broadcasted, and allows the user select desirable TV programme.Figure 19 allows the user select the examples of screen displays of the TV programme that will write down.In lattice, shown time 1901 and channel 1902 and 1903, can check each temporal each can write down the TV programme of channel.For the user, can be included in that cursor in the input unit 1310 of terminal installation 1300 is upper and lower by use, the right side and left button 1401 to 1404 come the focus 1911 in the moving screen.In addition, when pressing OK button 1405, the TV programme of record current focus indication will be selected.EPG 1702 has obtained the channel identifier of this TV programme from the storehouse, and when having selected the TV programme that will write down by the user, channel identifier, zero-time and the concluding time of this TV programme are informed the record registering unit 2403 of record management server 1704h.
On the other hand, under the situation of reproducing the TV programme that has write down, EPG 1702 shows the tabulation of the TV programme that has write down, and allows the user select desirable TV programme.Figure 18 is the example that makes its screen display that TV programme that has write down is selected.This time engrave all TV programme that are stored in second memory cell 1307 and all be listed.For the user, can use the upper and lower button 1401 of cursor and 1402 moving focal point 1801 in screen in the input unit 1310 that is included in terminal installation 1300.In addition, when pressing the OK button, the TV programme of current focus indication will be selected to reproduce.EPG 1702 has obtained the record identifier of this TV programme from record management server 1704h, when TV programme that the user has selected to reproduce, informs the record identifier of this TV programme to service managerZ-HU 1704f.Based on this information, service managerZ-HU 1704f reads this TV programme and it is reproduced from second memory cell 1307.
Below, show the typical operation of the present embodiment of structure as mentioned above.
Figure 31 shows in the present embodiment, when the flow chart of the overview that is included in service log in the broadcast wave processing procedure in second memory cell 1307 time.
In S3101, java applet or other program offer record registering unit 2403 with channel identifier, record start time and record end time.Proceed to S3102 then, record registering unit 2403 is waited for, the set time section before the specified record start time.After this, when arriving in this set time of specified record start before time during section, this processing procedure proceeds to S3103, and 2403 requests of record registering unit have been write down services selection unit 2404 opening entries and handled.Write down services selection unit 2404 and repeated following processing procedure, until arriving the specified record end time.
When the edition upgrading of AIT or PMT takes place when, perhaps take place because the PMT that the edition upgrading of PAT causes when upgrading, this processing procedure proceeds to S3104, and write down services selection unit 2404 and obtained all the interior PMT of transport stream that comprise the service that will write down, this service is specified by channel identifier.Having write down services selection handling procedure call unit 2405 is requested to specify all PMT and call the notify method that writes down the services selection handling procedure.According to return value, branch appears in this processing procedure in the following manner.
In return value is under the situation of PMT array, this processing procedure proceeds to S3105, according to last space in second memory cell 1307, write down all audio/video ES and the segmentation that services selection unit 2404 will be included in this PMT array and be recorded in second memory cell 1307.
Under return value was empty situation, this processing procedure proceeded to S3106, and at all java applets by the AIT of specified channel identifier service specified, checked the value of service_bound_flag.When the service_bound_flag=1 of all java applets, this processing procedure proceeds to S3107, and only will be recorded in second memory cell 1307 by the audio/video ES and the segmentation of this channel identifier (it is again by 2403 appointments of record registering unit) service specified.
On the other hand, in S3106, be at the service_bound_flag of not all java applet under 1 the situation, this processing procedure proceeds to S3108.Here, many service logs allow handling procedure call unit 2407 to be requested to call the AllowMultiServiceRec method that many service logs allow handling procedure.If the result is false, then this processing procedure proceeds to aforesaid S3107.On the other hand, if the result is true, then this processing procedure proceeds to S3109, and, will comprise that audio/video ES and the segmentation by all PMT in the mpeg 2 transport stream of channel identifier (it is again by 2403 appointments of record registering unit) service specified is recorded in second memory cell 1307 according to last space in second memory cell 1307.When the processing after above-mentioned each branch all finished, this processing procedure turned back to S3103, and repeated to handle.
As mentioned above, according to present embodiment, when the record service, can determine whether to write down other service simultaneously by the java applet of downloading with reference to the number of the ES that will write down, the free space in the memory cell etc. with this service.In addition, can detect automatically whether the java applet that is included in this service is the type that can be two or more service execution, and be under the situation of this executable type, can write down all recordable services at this java applet.By like this, even this java applet has carried out service and switches in that the service reproduction period is actual, this java applet also can continue to carry out and can abnormal end.
(second embodiment)
Below, apparatus and method according to a second embodiment of the present invention have been described with reference to the accompanying drawings.
As Figure 13 be configured to the hardware configuration of present embodiment as shown in Figure 14.Because this is identical with 26S Proteasome Structure and Function among first embodiment, so omitted explanation.
In the present embodiment, each hardware component units has following input and output setting.
At first, Figure 15 shows the concept nature statement of physical connection order, processing details and the I/O data format of each equipment under the situation that is illustrated in the ES of appointment in the only record service.Because this is a same structure illustrated among first embodiment, therefore omitted explanation.
Then, Figure 25 shows and is illustrated in the physical connection order that writes down each equipment under the situation that transmits all mpeg 2 transport streams of serving, the concept nature of handling details and I/O data format is explained.The 2500th, terminal installation, it comprises tuner 1301, adapter 1311, descrambler 1501 and recording areas 1504.Has identical functions with component units that Figure 13 has an identical numbering among Figure 15, so omitted explanation.At first, tuner 1301 carries out tuning according to the tuning instruction that CPU 1306 provides to broadcast wave.1301 pairs of broadcast waves of tuner carry out demodulation and mpeg 2 transport stream are input in the adapter 1311.The descrambler 1501 that is arranged in adapter 1311 carries out descrambling based on each beholder's condition access information to mpeg 2 transport stream.The mpeg 2 transport stream of descrambling is recorded in second memory cell.
At last, Figure 16 shows and is illustrated in the concept nature statement of reproduction from physical connection order, processing details and the I/O data format of each equipment of viability of second memory cell.Because this is a same structure illustrated among first embodiment, omitted explanation.
The example of relevant hardware configuration of the present invention so far, has been described.After this, major function of the present invention is described, that is, and by the record and the reproduction of java applet control service.
As Figure 17 be configured to the software configuration of present embodiment as shown in Figure 24.In addition, reused here be used for first embodiment Figure 18 to Figure 23, the configuration of the structure of every kind of data type and screen is described.
About Figure 17 and Figure 24, except writing down services selection unit 2404 and write down the services selection handling procedure call unit 2405, other component units is equal to illustrated those of first embodiment, has therefore omitted explanation.
Present embodiment write down the part revision that writes down services selection handling procedure call unit 2405 that services selection handling procedure call unit 2405 is first embodiment, and its output valve is different from the output valve of first embodiment.In addition, corresponding to this, this notify method that has write down the services selection handling procedure also is different form.The Handler.notify of present embodiment (AIT ait, PMT pmt, PMT pmt[]) method with the integer value as return value.Return value is that 0 expression has been write down the services selection handling procedure and is the selection of wanting to determine the service that will write down.Return value is that the specified services that will write down is only write down in 1 expression.Return value is that the whole M PEG-2 transport stream of the service that will write down of 2 expression transmission all is recorded.Having write down services selection handling procedure call unit 2405 return values with this notify method returns to and writes down services selection unit 2404.
Present embodiment write down the part revision that writes down services selection unit 2404 that services selection unit 2404 is first embodiment, and be different from first embodiment writing down the processing procedure of services selection handling procedure call unit 2405 after calling the notify method.
If returned return value 1, then only write down the service that will write down by the channel identifier appointment from writing down services selection handling procedure call unit 2405.In other words, in the PID of TS decoder filter 1502 and section filter 1503, be provided with all ES (in other words, audio frequency, video) that in the PMT of the service that will write down, represent and all PID and the table_id that forms the segmentation ES of this service.After this,, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
If from writing down the return value that services selection handling procedure call unit 2405 returns is 2, then record transmits the whole M PEG-2 transport stream of the service that will write down.In this case, as shown in figure 25,, write down each hardware component units has been set in services selection unit 2404 by storehouse 1701b output destination according to the input and output operation that when having write down the whole M PEG-2 transport stream that transmits this service, has taken place.Then, according to the described flow process of Figure 25, the whole M PEG-2 transport stream that transmits the service that will write down is recorded in the recording areas of having guaranteed 1504.
On the other hand, if be 0, then write down services selection unit 2404 and determined the service that to write down simultaneously through the following steps from writing down the return value that services selection handling procedure call unit 2405 returns.
At first, write down services selection unit 2404, and checked the service_bound_flag that is included in all java applets in this service with reference to AIT.
If the service_bound_flag=1 of all java applets has then write down services selection unit 2404 and has only write down the service that will write down by the channel identifier appointment.In other words, all ES (in other words, audio frequency, video) that represent among the PMT of the service that write down and all PID and the table_id that forms the segmentation ES of this service are set in the PID of TS decoder filter 1502 and section filter 1503.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, under the situation of the java applet that service_bound_flag=0 is arranged, write down services selection unit 2404 and allowed 2407 requests of handling procedure call unit to judge whether to allow a plurality of services of record to many service logs.When many service logs allow handling procedure call unit 2407 to return " vacation ", carry out described processing procedure under the service_bound_flag=1 situation, only record is by the specified service that will write down of channel identifier.When many service logs allow handling procedure call unit 2407 to return " very ", write down services selection unit 2404 records and transmitted the whole M PEG-2 transport stream of the service that will write down.In this case, as shown in figure 25,, write down each hardware component units is set in services selection unit 2404 by storehouse 1701b output destination according to the I/O operation that when having write down the whole M PEG-2 transport stream that transmits this service, has taken place.Then, according to the described flow process of Figure 25, the whole M PEG-2 transport stream that transmits the service that will write down is recorded in the recording areas of having guaranteed 1504.
Be desirably in finish before the specified record start time aforesaid, occur in the preliminary treatment before actual the record.The actual record that carries out in recording areas 1504 occurs in after the specified zero-time.
After this,, write down the tuning processing that services selection unit 2404 stops tuner 1704c, and made mpeg 2 transport stream write end in the recording areas 1504 when arriving specified record end during the time.In addition, create recorded information admin table as shown in figure 21, as the management information of the mpeg 2 transport stream that writes down before.
Identical among other processing procedure except above-mentioned and first embodiment.
Below, the typical operation of the present embodiment of structure as mentioned above is shown.
Figure 32 shows in the present embodiment, when the flow chart of the overview that is included in service log in the broadcast wave processing procedure in second memory cell 1307 time.
In S3201, java applet or other program offer record registering unit 2403 with channel identifier, record start time and record end time.Proceed to S3202 then, record registering unit 2403 is waited for, the set time section before the specified record start time.After this, when arriving in this set time of specified record start before time during section, this processing procedure proceeds to S3203, and 2403 requests of record registering unit have been write down services selection unit 2404 opening entries and handled.Write down services selection unit 2404 and repeated following processing procedure, until arriving the specified record end time.
When the edition upgrading of AIT or PMT takes place when, perhaps take place because the PMT that the edition upgrading of PAT causes when upgrading, this processing procedure proceeds to S3204, and write down services selection unit 2404 and obtained all the interior PMT of transport stream that comprise the service that will write down, this service is specified by channel identifier.Having write down services selection handling procedure call unit 2405 is requested to specify all PMT and call the notify method that writes down the services selection handling procedure.According to return value, branch appears in this processing procedure in the following manner.
Be that this processing procedure proceeds to S3207, and will comprise that the mpeg 2 transport stream by channel identifier (it is again by 2403 appointments of record registering unit) service specified all is recorded in second memory cell 1307 under 2 the situation in return value.
Be that this processing procedure proceeds to S3208, and only will be recorded in second memory cell 1307 by the video/audio ES and the segmentation of channel identifier (it is again by 2403 appointments of record registering unit) service specified under 1 the situation in return value.
In return value is under 0 situation, and this processing procedure proceeds to S3205, and at all java applets by the AIT of the channel identifier service specified of appointment, detects the value of service_bound_flag.Under the situation of the service_bound_flag=1 of all java applets, this processing procedure proceeds to S3208, carries out explanation before.On the other hand, be at 1 o'clock at the service_bound_flag of not all java applet, this processing procedure proceeds to S3206, and many service logs allow handling procedure call unit 2407 to be requested to call the AllowMultiServiceRec method that many service logs allow handling procedure.If the result is false, then this processing procedure proceeds to above-mentioned S3208.Yet if the result is true, this processing procedure proceeds to above-mentioned S3207.
When the processing after above-mentioned each branch all finished, this processing procedure turned back to S3203, and repeated to handle.
According to present embodiment, when the record service,, can determine only to write down the whole M PEG-2 transport stream that this service still is this service of record transmission by by last free space in the java applet reference memory unit of downloading.In addition, can detect automatically whether the java applet that is included in this service is the type that can be two or more service execution, and be under the situation of this executable type, can write down the whole M PEG-2 transport stream of this service of transmission at this java applet.By like this, even this java applet has carried out service and switches in that the service reproduction period is actual, this java applet also can continue to carry out and can abnormal end.
(the 3rd embodiment)
Below, the apparatus and method of a third embodiment in accordance with the invention are described with reference to the accompanying drawings.
Figure 26 is the block diagram that illustrates according to the typical hardware structure of broadcast recoding of the present invention and transcriber; In other words, show concrete internal structure in the terminal installation shown in Fig. 1 111,112 and 113.The 1300th, broadcast recoding and transcriber, it is constructed to: tuner 1301; TS decoder (TS demodulation multiplexer) 1302; AV decoder 1303; Loud speaker 1304; Display 1305; CPU 1306; Second memory cell 1307; Main memory unit 1308; ROM 1309; Input unit 1310; Adapter 1311; AV encoder 11312; Multiplexer (mpeg 2 transport stream multiplexer etc.) 1313; Segmentation converting unit 2601; And segmentation sensing element 2602.Except multiplexer 1313, segmentation converting unit 2601 and segmentation sensing element 2602, be equal to those key elements described in first embodiment with the described key element that those have identical name and numbering of Figure 13 among first embodiment, therefore omitted explanation.
The difference of the multiplexer of the multiplexer 1313 and first embodiment is that it is not multiplexing AIT segmentation and DSM-CC segmentation.In addition, multiplexer 1313 is identical.
The segmentation converting unit 2401 multiplexing segmentation of device that will not be re-used is converted to file, and this document is write down in the recording areas 1504 of second memory cell 1307 into.After passing through main memory unit 1308, passed through segmentation converting unit 2401 by AIT segmentation and DSM-CC segmentation that TS decoder 1302 filters out, and be recorded in the recording areas 1504, and do not pass through multiplexer.Here, different when segmentation being recorded in the recording method that in the recording areas 1504 is because of the form of segmentation.
File system is recorded in situation in the mpeg 2 transport stream with the DSM-CC file system format under, segmentation converting unit 2401 is converted to the file system format (this again to terminal unique) unique to this recording areas 1504 with this document system, and with this document system log (SYSLOG) in recording areas 1504.
In addition, under the situation of AIT, segmentation converting unit 2401 is converted to extension record information management sheet format with AIT, as shown in figure 29, and AIT is recorded in the recording areas 1504.Recorded information admin table shown in Figure 26 is the extended version of the recorded information admin table shown in Figure 21; In two tables with its implication of item of identical number-mark with recorded information admin table shown in Figure 21 in identical.Segmentation converting unit 2401 has been created AIT information management matrix section, and when writing down services selection unit 2404 establishment recorded information admin tables, this part and this recorded information admin table is merged.
Each provisional capital shows the recorded information of a service in the row 2911 and 2912.Each provisional capital has record identifier 2101, channel identifier 2102, program number 2103, service log zero-time 2104, service log concluding time 2105, medium identifier 2106 and quotes 2907 for the AIT information management table in the row 2911,2912.The AIT information management table has media time 2921 and the AIT version 2 922 corresponding with it.
Media time 2921 is the time when reproducing corresponding M PEG-2 transport stream, is the timestamp of the position in the corresponding mpeg 2 transport stream of expression.AIT version number 2922 is corresponding to the AIT version 2 200 among Figure 22.For example, record identifier 2101 is " TS_002 " for the recorded information of the service of " 001 " has medium identifier 2106, and the media time in the AIT information management table of quoting 2921 is during for " 00:00:00 ", and corresponding AIT version 2 922 is " 1 ".In the same manner, be that the AIT version 2 922 of " 00:05:00 " is " 2 " corresponding to media time 2921, and be that the AIT version 2 922 of " 00:20:00 " is " 3 " corresponding to media time 2921.
For example, when reproducing channel identifier 2901 and be the service of " 001 ", the reference record information management table, reproduction is by the multiplexing video of medium identifier 2902 " TS_002 " appointment and the mpeg 2 transport stream of audio frequency; In addition, with reference to the AIT information management table, when media time 2921 arrives " 00:00:00 ", be the AIT of " 1 " according to AIT version 2 922, carry out control so that java applet starts or stops.In a similar fashion, when media time 2921 arrives " 00:05:00 ", be the AIT of " 2 " according to AIT version 2 922, and when media time 2921 arrives " 00:20:00 ", be the AIT of " 3 " according to AIT version 2 922, carry out control so that java applet starts or termination.To be converted to the file system format (this again to terminal unique) unique as the actual AIT of the binary file of privately owned zoned format, and it will be recorded in the recording areas 1504 recording areas 1504.For the file that is write down is given unique filename (can come unique identification this document by it), and it is recorded in the recorded information admin table as AIT filename 2923.
In the broadcast wave of reality, repeat to transmit the AIT arbitrary number of times of identical AIT version, but in the present embodiment, the variation in the AIT version that receives by detection only will record in the recording areas 1504 at this first AIT that upgrades constantly.
2602 search of segmentation sensing element are corresponding to the media time of the current recovery time of the mpeg 2 transport stream of reading from recording areas, and from file, read AIT and DSM-CC file system, and it is passed to software AIT monitoring unit 2402 corresponding to this media time.In other words, AIT monitoring unit 2402 and unlike first embodiment with reference to the filter result of TS decoder, but obtain AIT binary file and DSM-CC file system from segmentation sensing element 2602.
Figure 14 is the topology example of the input unit 310 in the present embodiment.Because this identical with described in first embodiment is so omitted explanation.
Describe above-mentioned broadcast recoding and transcriber below in detail and will be included in the processing procedure of service log in second memory cell 1307 in the broadcast wave, and the processing procedure of service read and reproduce continuously by this broadcast recoding and transcriber from second memory cell 1307.
At first, explanation will be included in the processing procedure of service log in second memory cell 1307 in the broadcast wave.
Figure 27 shows the physical connection order that is illustrated in each equipment of record viability, the concept nature statement of handling details and I/O data format.In first embodiment, illustrate with component units that component units shown in Figure 15 has an identical numbering among this figure, therefore omitted explanation.Opposite with Figure 15, with hardware configuration shown in Figure 27, through after the main memory unit 1308, AIT segmentation of being filtered by TS decoder 1302 and DSM-CC segmentation have been passed through segmentation converting unit 2601 and have been recorded in the recording areas 1504, and do not pass through multiplexer.
Then, provided the relevant also explanation of reproduction service of mpeg 2 transport stream that calls over record from second memory cell 1307.
Figure 28 shows the physical connection order that is illustrated in this each equipment of viability of record, the concept nature statement of handling details and I/O data format.In first embodiment, illustrate with component units that component units shown in Figure 16 has an identical numbering among this figure, therefore omitted explanation.
The hardware configuration of Figure 28 and the difference of the hardware configuration among Figure 16 are that the segmentation that is recorded in the recording areas 1504 is to be read into main memory unit by segmentation sensing element 2901, and without the TS decoder.
The example of relevant hardware configuration of the present invention so far, has been described.After this, major function of the present invention is described, that is, service log is controlled and special play-back is controlled by java applet.
The software configuration that is used for present embodiment is constructed to as Figure 17 and shown in Figure 24.In addition, the Figure 18 that will be used for first embodiment uses here once more to Figure 23, with structure and the screen configuration that every kind of data type is described.
About Figure 17 and Figure 24, except application state management unit 2401, AIT administrative unit 2402 and write down the services selection unit 2404, other component units and first embodiment are described, and those are identical, have therefore omitted explanation.
In the present embodiment, AIT monitoring unit 2402 is part revisions of the AIT monitoring unit 2402 among first embodiment, difference is, AIT monitoring unit 2402 is read the AIT file that is recorded in respectively in second memory cell, rather than with filter and obtain multiplexing AIT the mpeg 2 transport stream of reading from second memory cell 1307.The progress that AIT monitoring unit 2402 reproduces or writes down according to the service that the media time 2921 that utilizes in the AIT information management table carries out, checking is corresponding to the AIT of current media time, obtain AIT filename, and read actual AIT file corresponding to the current media time.Media time continues forward, arrives should be with reference to different AIT the time when the time, obtains new AIT.In other words, this is equivalent to the edition upgrading of AIT.Therefore, begin to last till the effective initial media time of another AIT the effective time of the AIT of current version from the effective initial media time of this AIT always.
Other processing procedure in addition is identical with the processing procedure of the AIT monitoring unit 3231 of first embodiment.
The application state management unit 2401 of present embodiment is the part revision of the application state management unit 2401 of first embodiment, it reads the java class file with the original file systems format record from second memory cell 1307, rather than reads java applet in the multiplexing DSM-CC segmentation in mpeg 2 transport stream.The processing procedure of the application state management unit among other processing procedure in addition and first embodiment is identical.
The services selection unit 2404 that writes down of present embodiment is the version that the part that writes down services selection unit 2404 of first embodiment is revised, and the processing procedure after the return value of the notify method that writes down record that services selection handling procedure call unit 2405 returns and reproduction processes program is different from first embodiment.
If return the PMT array from writing down services selection handling procedure call unit 2405, then write down the service groups that specified pmt table shows simultaneously.All ES that represent in the PMT array (in other words, audio frequency, video) and composition are set in the PID filter 1502 and section filter 1503 of TS decoder about all PID and the table_id of the segmentation ES of the service of all PMT.Yet, in second memory cell 1307, have under the situation of remaining space seldom, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.
Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 27 by storehouse 1701b.Then, according to the described flow process of Figure 27, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, if return " sky ", then write down the definite through the following steps service that will write down simultaneously in services selection unit 2404 from writing down services selection handling procedure call unit 2405.
At first, write down services selection unit 2404, and checked the service_bound_flag that is included in all java applets in this service with reference to AIT.
If for all java applets, service_bound_flag=1 has then write down services selection unit 2404 and has only write down the service that will write down by the channel identifier appointment.In other words, all ES (in other words, audio frequency, video) that represent among the PMT of the service that write down and all PID and the table_id that forms the segmentation ES of this service are set in the PID of TS decoder filter 1502 and section filter 1503.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 27 by storehouse 1701b.Then, according to the described flow process of Figure 27, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, under the situation of the java applet that service_bound_flag=0 is arranged, write down services selection unit 2404 and allowed 2407 requests of handling procedure call unit to judge whether to allow a plurality of services of record to many service logs.Allow handling procedure call unit 2407 to return under the situation of " vacation " at many service logs, carry out described processing procedure under the service_bound_flag=1 situation, only record is by the specified service that will write down of channel identifier.Allow handling procedure call unit 2407 to return under the situation of " very " at many service logs, write down all services in the services selection unit 2404 record mpeg 2 transport streams.In other words, all ES that represent among all PMT in mpeg 2 transport stream (in other words, audio frequency, video) and form all PID and table_id about the segmentation ES of the service of all PMT, be set in the PID filter 1502 and section filter 1503 of TS decoder.
Yet, in second memory cell 1307, have seldom under the remaining space situation, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 27 by storehouse 1701b.Then, according to the described flow process of Figure 27, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
Be desirably in finish before the specified record start time aforesaid, occur in the preliminary treatment before actual the record.The actual record that carries out in recording areas 1504 occurs in after the specified zero-time.
After this,, write down the tuning processing that services selection unit 2404 stops tuner 1704c, and made mpeg 2 transport stream write end in the recording areas 1504 when arriving specified record end during the time.In addition, create recorded information admin table as shown in figure 29, as the management information of the mpeg 2 transport stream that writes down before.Note, AIT information management matrix section and the table of being created by segmentation converting unit 2401 are merged.The processing procedure of the application state management unit among other processing procedure in addition and first embodiment is identical.
Below, show the typical operation of the present embodiment of structure as mentioned above.
Figure 33 shows in the present embodiment, when the flow chart of the overview that is included in service log in the broadcast wave processing procedure in second memory cell 1307 time.
In S3301, java applet or other program offer record registering unit 2403 with channel identifier, record start time and record end time.Proceed to S3302 then, record registering unit 2403 is waited for, the set time section before the specified record start time.After this, when arriving in this set time of specified record start before time during section, this processing procedure proceeds to S3303, and 2403 requests of record registering unit have been write down services selection unit 2404 opening entries and handled.Write down services selection unit 2404 and repeated following processing procedure, until arriving the specified record end time.
When the edition upgrading of AIT or PMT takes place when, perhaps take place because the PMT that the edition upgrading of PAT causes when upgrading, this processing procedure proceeds to S3304, and write down services selection unit 2404 and obtained all the interior PMT of transport stream that comprise the service that will write down, this service is by the channel identifier appointment.Having write down services selection handling procedure call unit 2405 is requested to specify all PMT and call the notify method that writes down the services selection handling procedure.According to return value, branch appears in this processing procedure in the following manner.
In return value is under the situation of PMT array, this processing procedure proceeds to S3305, according to last space in second memory cell 1307, write down all audio/video ES and the segmental file that services selection unit 2404 will be included in this PMT array and be recorded in second memory cell 1307.
Under return value was empty situation, this processing procedure proceeded to S3306, and at all java applets by the AIT of specified channel identifier service specified, checked the value of service_bound_flag.Under the situation of the service_bound_flag=1 of all java applets, this processing procedure proceeds to S3307, and only will be recorded in second memory cell 1307 by the video/audio ES and the segmental file of this channel identifier (it is again by 2403 appointments of record registering unit) service specified.
On the other hand, in S3306, be at the service_bound_flag of not all java applet under 1 the situation, this processing procedure proceeds to S3308.Here, many service logs allow handling procedure call unit 2407 to be required to call the AllowMultiServiceRec method that many service logs allow handling procedure.If the result is false, then this processing procedure proceeds to aforesaid S3307.On the other hand, if the result is true, then this processing procedure proceeds to S3309, and, will comprise that audio/video ES and the segmentation by all PMT in the mpeg 2 transport stream of channel identifier (it is again by 2403 appointments of record registering unit) service specified is recorded in second memory cell 1307 according to last space in second memory cell 1307.When the processing after above-mentioned each branch all finished, this processing procedure turned back to S3303, and repeated to handle.
As mentioned above, according to present embodiment,,, can determine whether side by side to write down other service with this service by by the free space in the java applet reference memory unit of downloading etc. when when service record.Whether in addition, can detect the java applet that is included in this service automatically is the type that can carry out in two or more services, and is under the situation of this executable type at this java applet, can write down all recordable services.By like this, even this java applet has carried out service and switches in that the service reproduction period is actual, this java applet also can continue to carry out and can abnormal end.In addition, because will be converted to file format such as the privately owned segmentation that AIT and such the repeating of DSM-CC send identical data, and record just when upgrading only, can save the space in the memory cell.
(the 4th embodiment)
Below, the apparatus and method of a fourth embodiment in accordance with the invention are described with reference to the accompanying drawings.
As Figure 13 be configured to the hardware configuration of present embodiment as shown in Figure 14.Because this is identical with 26S Proteasome Structure and Function among first embodiment, so omitted explanation.
In the present embodiment, each hardware component units has following input and output setting.
At first, Figure 15 shows the concept nature statement of physical connection order, processing details and the I/O data format of each equipment under the situation that is illustrated in the ES of appointment in the only record service.Because this is a same structure illustrated among first embodiment, therefore omitted explanation.
Then, Figure 16 shows and is illustrated in the concept nature statement of reproduction from physical connection order, processing details and the I/O data format of each equipment of viability of second memory cell.Because this is a same structure illustrated among first embodiment, omitted explanation.
The example of relevant hardware configuration of the present invention so far, has been described.After this, major function of the present invention is described, that is, and by the record and the reproduction of java applet control service.
In addition, Figure 18 to Figure 21 and Figure 23 of using among first embodiment have been reused here, so that explanation is used for the structure and the screen configuration of every kind of data type of present embodiment.In the present embodiment, used the AIT of form shown in Figure 30, but not the AIT of form shown in Figure 22.About the AIT shown in Figure 30, name or numbering are the same with those key elements described in those the identical key elements shown in Figure 22 and first embodiment, so omitted explanation.In Figure 30, newly added record object channel identifier 3001.Figure 30 has listed the channel identifier of the service that will write down simultaneously, makes each java applet all normally carry out.For example, this expression, the java applet in the row 2211 is wanted operate as normal, just must write down channel identifier simultaneously and be 1 and 2 service.
The software configuration that uses in the present embodiment is constructed to as Figure 17 and shown in Figure 24.For Figure 17 and Figure 24, except writing down services selection unit 2404, other component units is all identical with described in first embodiment those, so omitted explanation.
Present embodiment write down the part revision that writes down services selection unit 2404 that services selection unit 2404 is first embodiment, and the processing procedure after the following steps is different from first embodiment: i) receive notice about the new AIT of the version of having upgraded from the AIT monitoring unit during recording operation, perhaps ii) detect the edition upgrading of PAT or PMT.Record object channel identifier 3001 when at this moment, having write down services selection unit 2404 and at first check the new AIT 2402 that receive from the AIT monitoring unit, that version has been upgraded.Remove redundancy, listed record object channel identifier 3001 when writing in all java applets of representing among this AIT.
In AIT example shown in Figure 30, remove redundancy, the record object channel identifier is 1,2 and 4 simultaneously.After this, write down services selection unit 2404 to write down services selection handling procedure call unit 2405 notify up-to-date AIT, with the PMT of the service of removing the corresponding PMT of record object channel identifier redundant the time and will write down, and request call has write down the services selection handling procedure.Then, as previously mentioned, write down that services selection handling procedure call unit 2405 will write down and the return value of reproduction processes program Notification Method returns to and writes down services selection unit 2404.
If return the PMT array from writing down services selection handling procedure call unit 2405, then write down the service groups that specified pmt table shows simultaneously.All ES that represent in the PMT array (in other words, audio frequency, video) and composition are set in the PID filter 1502 and section filter 1503 of TS decoder about all PID and the table_id of the segmentation ES of the service of all PMT.Yet, in second memory cell 1307, have under the situation of remaining space seldom, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.
Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, if return " sky ", then write down the definite through the following steps service that will write down simultaneously in services selection unit 2404 from writing down services selection handling procedure call unit 2405.
At first, write down services selection unit 2404, and checked the service_bound_flag that is included in all java applets in this service with reference to AIT.
If for all java applets, service_bound_flag=1 has then write down services selection unit 2404 and has only write down the service that will write down by the channel identifier appointment.In other words, all ES (in other words, audio frequency, video) that represent among the PMT of the service that write down and all PID and the table_id that forms the segmentation ES of this service are set in the PID of TS decoder filter 1502 and section filter 1503.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, under the situation of the java applet that service_bound_flag=0 is arranged, write down services selection unit 2404 and allowed 2407 requests of handling procedure call unit to judge whether to allow a plurality of services of record to many service logs.Allow handling procedure call unit 2407 to return under the situation of " vacation " at many service logs, carry out described processing procedure under the service_bound_flag=1 situation, only record is by the specified service that will write down of channel identifier.Allow handling procedure call unit 2407 to return under the situation of " very " at many service logs, all specified services of record object channel identifier when having write down services selection unit 2404 records by the removal redundancy.In other words, all ES of expression (in other words in the corresponding PMT of record object channel identifier organizes simultaneously with this, audio frequency, video) and form all PID and table_id about the segmentation ES of the service of described PMT, be set in the PID filter 1502 and section filter 1503 of TS decoder.
Yet, in second memory cell 1307, have seldom under the remaining space situation, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
Be desirably in finish before the specified record start time aforesaid, occur in the preliminary treatment before actual the record.The actual record that carries out in recording areas 1504 occurs in after the specified zero-time.
After this,, write down the tuning processing that services selection unit 2404 stops tuner 1704c, and made mpeg 2 transport stream write end in the recording areas 1504 when arriving specified record end during the time.In addition, create recorded information admin table as shown in figure 21, as the management information of the mpeg 2 transport stream that writes down before.
Processing procedure except that above-mentioned is identical with processing procedure among first embodiment.
Below, show the typical operation of the present embodiment of structure as mentioned above.
Figure 34 shows in the present embodiment, when the flow chart of the overview that is included in service log in the broadcast wave processing procedure in second memory cell 1307 time.
In S3401, java applet or other program offer record registering unit 2403 with channel identifier, record start time and record end time.Proceed to S3402 then, record registering unit 2403 is waited for, the set time section before the specified record start time.After this, when arriving in this set time of specified record start before time during section, this processing procedure proceeds to S3403, and 2403 requests of record registering unit have been write down services selection unit 2404 opening entries and handled.Write down services selection unit 2404 and repeated following processing procedure, until arriving the specified record end time.
When the edition upgrading of AIT or PMT takes place when, perhaps take place because the PMT that the edition upgrading of PAT causes when upgrading, this processing procedure proceeds to S3404, and record object channel identifier when having write down services selection unit 2404 and check the AIT that comprises by the specified service that will write down of channel identifier, and determine the service that to write down simultaneously.Write down services selection unit 2404 and specified the service that to write down simultaneously, and asked to have write down services selection handling procedure call unit 2405 and call the notify method that writes down the services selection handling procedure.According to return value, branch appears in this processing procedure in the following manner.
In return value is under the situation of PMT array, this processing procedure proceeds to S3405, according to last space in second memory cell 1307, write down all audio/video ES and the segmentation that services selection unit 2404 will be included in this PMT array and be recorded in second memory cell 1307.
Under return value was empty situation, this processing procedure proceeded to S3406, and at all java applets by the AIT of specified channel identifier service specified, checked the value of service_bound_flag.
Under the situation of the service_bound_flag=1 of all java applets, this processing procedure proceeds to S3407, and only will be recorded in second memory cell 1307 by the video/audio ES and the segmentation of this channel identifier (it is again by 2403 appointments of record registering unit) service specified.
On the other hand, in S3406, be at the service_bound_flag of not all java applet under 1 the situation, this processing procedure proceeds to S3408.Here, many service logs allow handling procedure call unit 2407 to be requested to call the AllowMultiServiceRec method that many service logs allow handling procedure.If the result is false, then this processing procedure proceeds to aforesaid S3407.On the other hand, if the result is true, then this processing procedure proceeds to S3409, and according to last space in second memory cell 1307, will be recorded in second memory cell 1307 with video/audio ES and the segmentation of corresponding all PMT of service that will write down simultaneously.
When the processing after above-mentioned each branch all finished, this processing procedure turned back to S3403, and repeated to handle.
According to present embodiment, on the basis of the effect of first embodiment, only optionally record is normal carries out the necessary service of java applet, feasiblely like this can normally carry out this java applet and does not waste space in the memory cell.
(the 5th embodiment)
Below, apparatus and method according to a fifth embodiment of the invention are described with reference to the accompanying drawings.
As Figure 13 be configured to the hardware configuration of present embodiment as shown in Figure 14.Because this is identical with 26S Proteasome Structure and Function among first embodiment, so omitted explanation.
In the present embodiment, each hardware component units has following input and output setting.
At first, Figure 15 shows the concept nature statement of physical connection order, processing details and the I/O data format of each equipment under the situation that is illustrated in the ES of appointment in the only record service.Because this is a same structure as described in the first embodiment, therefore omitted explanation.Then, Figure 25 shows and is illustrated in the physical connection order that writes down each equipment under the situation that transmits the mpeg 2 transport stream of serving, the concept nature of handling details and I/O data format is explained.Because this is a same structure as described in the second embodiment, therefore omitted explanation
At last, Figure 16 shows the physical connection order that is illustrated in each equipment of record viability, the concept nature statement of handling details and I/O data format.Because this is a same structure as described in the first embodiment, therefore omitted explanation.
The example of relevant hardware configuration of the present invention so far, has been described.After this, major function of the present invention is described, that is, and by the record and the reproduction of java applet control service.
In addition, Figure 18 to Figure 21 and Figure 23 of using among first embodiment have been reused here, so that explanation is used for the structure and the screen configuration of every kind of data type of present embodiment; Here also used the AIT form shown in Figure 30 of the 4th embodiment.Because therefore these figure identical with described in the first and the 4th embodiment omitted explanation.
The software configuration that uses in the present embodiment is constructed to as Figure 17 and shown in Figure 24.For Figure 17 and Figure 24, except writing down services selection handling procedure call unit 2405 and write down the services selection unit 2404, other component units is all identical with described in first embodiment those, so omitted explanation.In addition, write down services selection handling procedure call unit 2405 identical with described in second embodiment, therefore omitted explanation.
Present embodiment write down the part revision that writes down services selection unit 2404 that services selection unit 2404 is second embodiment, and when providing the method for PMT different from writing down when services selection handling procedure call unit 2405 request calls have write down the services selection handling procedure during the recording operation with second embodiment.One receives the notice of the new AIT that has upgraded about version from AIT monitoring unit 2405, perhaps detect PAT or PMT edition upgrading, record object channel identifier 3001 when having write down services selection unit 2404 and just at first check from AIT monitoring unit 2402 new AIT that receive, edition upgrading.Remove redundancy, listed record object channel identifier 3001 when writing in all java applets of representing among this AIT.
In AIT example shown in Figure 30, remove redundancy, the record object channel identifier is 1,2 and 4 simultaneously.After this, write down services selection unit 2404 to write down services selection handling procedure call unit 2405 notify up-to-date AIT, with the PMT of the service of removing the corresponding PMT of record object channel identifier redundant the time and will write down, and request call has write down the services selection handling procedure.Then, as previously mentioned, write down that services selection handling procedure call unit 2405 will write down and the return value of reproduction processes program Notification Method returns to and writes down services selection unit 2404.After this processing procedure is identical with described in second embodiment those.
Below, the typical operation of the present embodiment of structure as mentioned above is shown.
Figure 35 shows in the present embodiment, when the flow chart of the overview that is included in service log in the broadcast wave processing procedure in second memory cell 1307 time.
In S3501, java applet or other program offer record registering unit 2403 with channel identifier, record start time and record end time.Proceed to S3502 then, record registering unit 2403 is waited for, the set time section before the specified record start time.After this, when arriving in this set time of specified record start before time during section, this processing procedure proceeds to S3503, and 2403 requests of record registering unit have been write down services selection unit 2404 opening entries and handled.Write down services selection unit 2404 and repeated following processing procedure, until arriving the specified record end time.
When the edition upgrading of AIT or PMT takes place when, perhaps take place because the PMT that the edition upgrading of PAT causes when upgrading, this processing procedure proceeds to S3504, and record object channel identifier when having write down services selection unit 2404 and check the AIT that comprises by the specified service that will write down of channel identifier, and determine the service that to write down simultaneously.Write down services selection unit 2404 and specified the service that to write down simultaneously, and asked to have write down services selection handling procedure call unit 2405 and call the notify method that writes down the services selection handling procedure.According to return value, branch appears in this processing procedure in the following manner.
If return value is 2, then this processing procedure proceeds to S3507, and will comprise that all mpeg 2 transport streams by channel identifier (it is again by 2403 appointments of record registering unit) service specified are recorded in second memory cell 1307.
If return value is 1, then this processing procedure proceeds to S3508, and only will be recorded in second memory cell 1307 by the video/audio ES and the segmentation of channel identifier (it is again by 2403 appointments of record registering unit) service specified.
If return value is 0, then this processing procedure proceeds to S3505, and at all java applets by the AIT of the channel identifier service specified of appointment, checks the value of service_bound_flag.Under the situation of the service_bound_flag=1 of all java applets, this processing procedure proceeds to S3508, carries out explanation before.On the other hand, be at the service_bound_flag of not all java applet under 1 the situation, this processing procedure proceeds to S3506, and many service logs allow handling procedure call unit 2407 to be required to call the AllowMultiServiceRec method that many service logs allow handling procedure.If the result is false, then this processing procedure proceeds to aforesaid S3508.Yet if the result is true, this processing procedure proceeds to aforesaid S3507.
When the processing after above-mentioned each branch all finished, this processing procedure turned back to S3503, and repeated to handle.
According to present embodiment, on the basis of the effect of second embodiment, can only optionally write down the necessary service of normal execution java applet, make like this and can normally carry out this java applet and do not waste space in the memory cell.
(the 6th embodiment)
Below, apparatus and method according to a sixth embodiment of the invention are described with reference to the accompanying drawings.
As Figure 26 be configured to the hardware configuration of present embodiment as shown in Figure 14.Because Figure 26 has the 26S Proteasome Structure and Function identical with the 3rd embodiment, so omitted explanation.Equally, because Figure 14 has the 26S Proteasome Structure and Function identical with first embodiment, so omitted explanation.
In the present embodiment, each hardware component units has following input and output setting.
At first, Figure 27 shows the concept nature statement of physical connection order, processing details and the I/O data format of each equipment under the situation that is illustrated in the ES of appointment in the only record service.Because this is a same structure as described in the third embodiment, so omitted explanation.
Then, Figure 28 shows the physical connection order that is illustrated in each equipment of record viability, the concept nature statement of handling details and I/O data format.Because this is a same structure as described in the third embodiment, so omitted explanation.
The example of relevant hardware configuration of the present invention so far, has been described.After this, major function of the present invention is described, that is, and by the record and the reproduction of java applet control service.
In addition, Figure 18 to Figure 20 and Figure 23 of using among first embodiment have been reused here, so that explanation is used for the structure and the screen configuration of every kind of data type of present embodiment; Here the recorded information admin table shown in Figure 29 of the 3rd embodiment and the AIT form shown in Figure 30 of the 4th embodiment have also been used.Because therefore identical described in these figure and first, third and fourth embodiment omitted explanation.
The software configuration that uses in the present embodiment is constructed to as Figure 17 and shown in Figure 24.For Figure 17 and Figure 24, except application state management unit 2401, AIT administrative unit 2402 and write down the services selection unit 2404, other component units is identical with described in first embodiment those, so omitted explanation.In addition, because application state management unit 2401 and AIT administrative unit 2402 are identical with described in the 3rd embodiment those, so omitted explanation.
Present embodiment write down the part revision that writes down services selection unit 2404 that services selection unit 2404 is first embodiment.Processing procedure after the following steps is different from first embodiment: i) receive notice about the new AIT of the version of having upgraded from the AIT monitoring unit during recording operation, perhaps ii) detect the edition upgrading of PAT or PMT.Record object channel identifier 3001 when at this moment, having write down services selection unit 2404 and at first check the new AIT 2402 that receive from the AIT monitoring unit, that version has been upgraded.Remove redundancy, listed record object channel identifier 3001 when writing in all java applets of representing among this AIT.In AIT example shown in Figure 30, remove redundancy, the record object channel identifier is 1,2 and 4 simultaneously.After this, write down services selection unit 2404 to write down services selection handling procedure call unit 2405 notify up-to-date AIT, with the PMT of the service of removing the corresponding PMT of record object channel identifier redundant the time and will write down, and request call has write down the services selection handling procedure.Then, as previously mentioned, write down that services selection handling procedure call unit 2405 will write down and the return value of reproduction processes program Notification Method returns to and writes down services selection unit 2404.
If return the PMT array from writing down services selection handling procedure call unit 2405, then write down the service groups that specified pmt table shows simultaneously.All ES that represent in the PMT array (in other words, audio frequency, video) and composition are set in the PID filter 1502 and section filter 1503 of TS decoder about all PID and the table_id of the segmentation ES of the service of all PMT.Yet, in second memory cell 1307, have under the situation of remaining space seldom, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.
Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 27 by storehouse 1701b.Then, according to the described flow process of Figure 27, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, if return " sky ", then write down the definite through the following steps service that will write down simultaneously in services selection unit 2404 from writing down services selection handling procedure call unit 2405.
At first, write down services selection unit 2404, and checked the service_bound_flag that is included in all java applets in this service with reference to AIT.
If for all java applets, service_bound_flag=1 has then write down services selection unit 2404 and has only write down the service that will write down by the channel identifier appointment.In other words, all ES (in other words, audio frequency, video) that represent among the PMT of the service that write down and all PID and the table_id that forms the segmentation ES of this service are set in the PID of TS decoder filter 1502 and section filter 1503.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 27 by storehouse 1701b.Then, according to the described flow process of Figure 27, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, under the situation of the java applet that service_bound_flag=0 is arranged, write down services selection unit 2404 and allowed 2407 requests of handling procedure call unit to judge whether to allow a plurality of services of record to many service logs.Allow handling procedure call unit 2407 to return under the situation of " vacation " at many service logs, carry out described processing procedure under the service_bound_flag=1 situation, only record is by the specified service that will write down of channel identifier.Allow handling procedure call unit 2407 to return under the situation of " very " at many service logs, the specified service groups of record object channel identifier when having write down services selection unit 2404 records by the removal redundancy.In other words, all ES of expression (in other words in the corresponding PMT of record object channel identifier organizes simultaneously with this, audio frequency, video) and form all PID and table_id about the segmentation ES of the service of described PMT, be set in the PID filter 1502 and section filter 1503 of TS decoder.
Yet, in second memory cell 1307, have seldom under the remaining space situation, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 27 by storehouse 1701b.Then, according to the described flow process of Figure 27, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
Be desirably in finish before the specified record start time aforesaid, occur in the preliminary treatment before actual the record.The actual record that carries out in recording areas 1504 occurs in after the specified zero-time.
After this,, write down the tuning processing that services selection unit 2404 stops tuner 1704c, and made mpeg 2 transport stream write end in the recording areas 1504 when arriving specified record end during the time.In addition, create recorded information admin table as shown in figure 29, as the management information of the mpeg 2 transport stream that writes down before.Notice that AIT information management matrix section is merged by the table of being created with segmentation converting unit 2401.
Processing procedure in addition is identical with the processing procedure that writes down services selection unit 2404 of first embodiment.
Below, show the typical operation of the present embodiment of structure as mentioned above.
Figure 36 shows in the present embodiment, when the flow chart of the overview that is included in service log in the broadcast wave processing procedure in second memory cell 1307 time.
In S3601, java applet or other program offer record registering unit 2403 with channel identifier, record start time and record end time.Proceed to S3602 then, record registering unit 2403 is waited for, the set time section before the specified record start time.After this, when arriving in this set time of specified record start before time during section, this processing procedure proceeds to S3603, and 2403 requests of record registering unit have been write down services selection unit 2404 opening entries and handled.Write down services selection unit 2404 and repeated following processing procedure, until arriving the specified record end time.
When the edition upgrading of AIT or PMT takes place when, perhaps take place because the PMT that the edition upgrading of PAT causes when upgrading, this processing procedure proceeds to S3604, and record object channel identifier when having write down services selection unit 2404 and check the AIT that comprises by the specified service that will write down of channel identifier, and determine the service that to write down simultaneously.Write down services selection unit 2404 and specified the service that to write down simultaneously, and asked to have write down services selection handling procedure call unit 2405 and call the notify method that writes down the services selection handling procedure.According to return value, branch appears in this processing procedure in the following manner.
In return value is under the situation of PMT array, this processing procedure proceeds to S3605, according to last space in second memory cell 1307, write down all audio/video ES and the segmental file that services selection unit 2404 will be included in this PMT array and be recorded in second memory cell 1307.
Under return value was empty situation, this processing procedure proceeded to S3606, and at all java applets by the AIT of specified channel identifier service specified, checked the value of service_bound_flag.Under the situation of the service_bound_flag=1 of all java applets, this processing procedure proceeds to S3607, and only will be recorded in second memory cell 1307 by the video/audio ES and the segmental file of this channel identifier (it is again by 2403 appointments of record registering unit) service specified.
On the other hand, in S3606, be at the service_bound_flag of not all java applet under 1 the situation, this processing procedure proceeds to S3608.Here, many service logs allow handling procedure call unit 2407 to be required to call the AllowMultiServiceRec method that many service logs allow handling procedure.If the result is false, then this processing procedure proceeds to aforesaid S3607.On the other hand, if the result is true, then this processing procedure proceeds to S3609, and according to last space in second memory cell 1307, will be recorded in second memory cell 1307 with video/audio ES and the segmental file of corresponding all PMT of service that will write down simultaneously.
When the processing after above-mentioned each branch all finished, this processing procedure turned back to S3603, and repeated to handle.
According to present embodiment, on the basis of the effect of the 3rd embodiment, only optionally record is normal carries out the necessary service of java applet, feasiblely like this can normally carry out this java applet and does not waste space in the memory cell.
(the 7th embodiment)
Below, apparatus and method according to a seventh embodiment of the invention are described with reference to the accompanying drawings.
As Figure 13 be configured to the hardware configuration of present embodiment as shown in Figure 14.Because this is identical with 26S Proteasome Structure and Function among first embodiment, so omitted explanation.
In the present embodiment, each hardware component units has following input and output setting.
At first, Figure 15 shows the concept nature statement of physical connection order, processing details and the I/O data format of each equipment under the situation that is illustrated in the ES of appointment in the only record service.Because this is a same structure as described in the first embodiment, therefore omitted explanation.
Then, Figure 16 shows the physical connection order that is illustrated in each equipment of record viability, the concept nature statement of handling details and I/O data format.Because this is a same structure as described in the first embodiment, therefore omitted explanation.
The example of relevant hardware configuration of the present invention so far, has been described.After this, major function of the present invention is described, that is, and by the record and the reproduction of java applet control service.
Here reused the Figure 18 to Figure 23 that uses among first embodiment, so that explanation is used for the structure and the screen configuration of every kind of data type of present embodiment.Because therefore element identical with described in first embodiment omitted explanation.
The software configuration that uses in the present embodiment is constructed to as Figure 17 and shown in Figure 24.For Figure 17 and Figure 24, except AIT monitoring unit 2402 with write down the services selection unit 2404, other component units is all identical with described in first embodiment those, so omitted explanation.
Except the function of the AIT monitoring unit 2402 of first embodiment, 2402 pairs of edition upgradings that are included in all AIT in the mpeg 2 transport stream of the AIT monitoring unit of present embodiment are monitored.In other words, the channel except the channel identifier of appointment is also monitored the edition upgrading of AIT.This process is the same with situation about obtaining with the AIT of the specified corresponding service of channel identifier almost.At first, use storehouse 1701b, obtain tuning information corresponding to specified channel identifier.Then, use SF 1704e, obtain PAT.Obtain among all PMT by the actual PMT that this PAT quoted, and with reference to the details that writes in actual PMT, the search stream type is " data " and with " AIT " PID as the basic stream of additional information; This PID is carried out segmentation filter, and obtain all actual AIT.As long as when the edition upgrading that any AIT occurs, AIT monitoring unit 2402 is exported to the whole up-to-date AIT of all services in the mpeg 2 transport stream and is write down services selection unit 2404.Note,, take place under the situation of edition upgrading, must obtain the edition upgrading of AIT and inspection AIT again at PAT or PMT because might edition upgrading take place for PAT and PMT.
Present embodiment write down the part revision that writes down services selection unit 2404 that services selection unit 2404 is first embodiment.Processing procedure after the following steps is different from first embodiment: i) receive notice about the new AIT of the version of having upgraded from the AIT monitoring unit during recording operation, perhaps ii) detect the edition upgrading of PAT or PMT.At this moment, write down the service_bound_flag 2205 that one group of 2402 that receive from the AIT monitoring unit, that version has been upgraded new AIT is at first checked in services selection unit 2404.
At first, if in AIT, there is not the java applet of service_bound_flag=0, determine the service that will not write down simultaneously by record channel identifier (it is again by 2403 appointments of record registering unit) service specified.
On the other hand, even in AIT, there is the java applet of a service_bound_flag=0, then begin specific operation to the service that will write down simultaneously by record channel identifier service specified.In other words, all the group AIT from AIT monitoring unit 2402 output are checked,, have the service that the service of this AIT will be write down exactly simultaneously so in this AIT even the java applet of a service_bound_flag=0 is arranged.
After this, write down services selection unit 2404 to write down services selection handling procedure call unit 2405 notify up-to-date AIT, with the PMT of the service that is judged as the corresponding PMT of the service that will write down simultaneously group and will writes down, and request call has write down the services selection handling procedure.Then, as previously mentioned, write down that services selection handling procedure call unit 2405 will write down and the return value of reproduction processes program Notification Method returns to and writes down services selection unit 2404.
If return the PMT array from writing down services selection handling procedure call unit 2405, then write down the service groups that specified pmt table shows simultaneously.All ES that represent in the PMT array (in other words, audio frequency, video) and composition are set in the PID filter 1502 and section filter 1503 of TS decoder about all PID and the table_id of the segmentation ES of the service of all PMT.Yet, in second memory cell 1307, have under the situation of remaining space seldom, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.
Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, if return " sky ", then write down the definite through the following steps service that will write down simultaneously in services selection unit 2404 from writing down services selection handling procedure call unit 2405.
At first, write down services selection unit 2404, and checked the service_bound_flag that is included in all java applets in this service with reference to AIT by the service that will write down of writing down registering unit 2403 appointments.
If for all java applets, service_bound_flag=1 has then write down services selection unit 2404 and has only write down the service that will write down by the channel identifier appointment.In other words, all ES (in other words, audio frequency, video) that represent among the PMT of the service that write down and all PID and the table_id that forms the segmentation ES of this service are set in the PID of TS decoder filter 1502 and section filter 1503.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, under the situation of the java applet that service_bound_flag=0 is arranged, write down services selection unit 2404 and allowed 2407 requests of handling procedure call unit to judge whether to allow a plurality of services of record to many service logs.Allow handling procedure call unit 2407 to return under the situation of " vacation " at many service logs, carry out described processing procedure under the service_bound_flag=1 situation, only record is by the specified service that will write down of channel identifier.Allow handling procedure call unit 2407 to return under the situation of " very " at many service logs, write down all the described services that will write down simultaneously before.In other words, all ES of expression (in other words in organizing with the corresponding PMT of while record object channel identifier, audio frequency, video) and form all PID and table_id about the segmentation ES of the service of described PMT, be set in the PID filter 1502 and section filter 1503 of TS decoder.
Yet, in second memory cell 1307, have seldom under the remaining space situation, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 15 by storehouse 1701b.Then, according to the described flow process of Figure 15, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
Be desirably in finish before the specified record start time aforesaid, occur in the preliminary treatment before actual the record.The actual record that carries out in recording areas 1504 occurs in after the specified zero-time.
After this,, write down the tuning processing that services selection unit 2404 stops tuner 1704c, and made mpeg 2 transport stream write end in the recording areas 1504 when arriving specified record end during the time.In addition, create recorded information admin table as shown in figure 21, as the management information of the mpeg 2 transport stream that writes down before.
Processing procedure except that above-mentioned is identical with processing procedure among first embodiment.
Below, show the typical operation of the present embodiment of structure as mentioned above.
Figure 37 shows in the present embodiment, when the flow chart of the overview that is included in service log in the broadcast wave processing procedure in second memory cell 1307 time.
In S3701, java applet or other program offer record registering unit 2403 with channel identifier, record start time and record end time.Proceed to S3702 then, record registering unit 2403 is waited for, the set time section before the specified record start time.After this, when arriving in this set time of specified record start before time during section, this processing procedure proceeds to S3703, and 2403 requests of record registering unit have been write down services selection unit 2404 opening entries and handled.Write down services selection unit 2404 and repeated following processing procedure, until arriving the specified record end time.
When the edition upgrading of AIT or PMT takes place when, perhaps take place because the PMT that the edition upgrading of PAT causes when upgrading, this processing procedure proceeds to S3704, and write down services selection unit 2404 based on the service_bound_flag that comprises by the AIT of the service that will write down of channel identifier appointment, determined the service that to write down simultaneously.Write down services selection unit 2404 and specified the service that to write down simultaneously, and asked to have write down services selection handling procedure call unit 2405 and call the notify method that writes down the services selection handling procedure.According to return value, branch appears in this processing procedure in the following manner.
In return value is under the situation of PMT array, this processing procedure proceeds to S3705, according to last space in second memory cell 1307, write down all audio/video ES and the segmentation that services selection unit 2404 will be included in this PMT array and be recorded in second memory cell 1307.
Under return value was empty situation, this processing procedure proceeded to S3706, and at all java applets by the AIT of specified channel identifier service specified, checked the value of service_bound_flag.Under the situation of the service_bound_flag=1 of all java applets, this processing procedure proceeds to S3707, and only will be recorded in second memory cell 1307 by the video/audio ES and the segmentation of this channel identifier (it is again by 2403 appointments of record registering unit) service specified.
On the other hand, in S3706, be at the service_bound_flag of not all java applet under 1 the situation, this processing procedure proceeds to S3708.Here, many service logs allow handling procedure call unit 2407 to be required to call the AllowMultiServiceRec method that many service logs allow handling procedure.If the result is false, then this processing procedure proceeds to aforesaid S3707.On the other hand, if the result is true, then this processing procedure proceeds to S3709, and according to last space in second memory cell 1307, will be recorded in second memory cell 1307 with video/audio ES and the segmentation of corresponding all PMT of service that will write down simultaneously.
When the processing after above-mentioned each branch all finished, this processing procedure turned back to S3703, and repeated to handle.
According to present embodiment, on the basis of the effect of first embodiment, can optionally only write down the necessary service of normal execution java applet, make like this and can normally carry out this java applet and do not waste space in the memory cell.
(the 8th embodiment)
Below, the apparatus and method according to the eighth embodiment of the present invention are described with reference to the accompanying drawings.
As Figure 13 be configured to the hardware configuration of present embodiment as shown in Figure 14.Because this is identical with 26S Proteasome Structure and Function among first embodiment, so omitted explanation.
In the present embodiment, each hardware component units has following input and output setting.
At first, Figure 15 shows the concept nature statement of physical connection order, processing details and the I/O data format of each equipment under the situation that is illustrated in the ES of appointment in the only record service.Because this is a same structure as described in the first embodiment, therefore omitted explanation.
Then, Figure 25 shows and is illustrated in the physical connection order that writes down each equipment under the situation that transmits the mpeg 2 transport stream of serving, the concept nature of handling details and I/O data format is explained.Because this is a same structure as described in the second embodiment, therefore omitted explanation
At last, Figure 16 shows the physical connection order that is illustrated in each equipment of record viability, the concept nature statement of handling details and I/O data format.Because this is a same structure as described in the first embodiment, therefore omitted explanation.
The example of relevant hardware configuration of the present invention so far, has been described.After this, major function of the present invention is described, that is, and by the record and the reproduction of java applet control service.
Here reused the Figure 18 to Figure 23 that uses among first embodiment, so that explanation is used for the structure and the screen configuration of every kind of data type of present embodiment.Because therefore element identical with described in first embodiment omitted explanation.
The software configuration that uses in the present embodiment is constructed to as Figure 17 and shown in Figure 24.For Figure 17 and Figure 24, except AIT monitoring unit 2402, write down services selection handling procedure call unit 2405 and having write down the services selection unit 2404, other component units is all identical with described in first embodiment those, so omitted explanation.In addition, write down services selection handling procedure call unit 2405 identical with described in second embodiment, therefore omitted explanation.Therefore AIT monitoring unit 2402 identical with described in the 7th embodiment omitted explanation.
Present embodiment write down the part revision that writes down services selection unit 2404 that services selection unit 2404 is second embodiment, and when providing the method for PMT different from writing down when services selection handling procedure call unit 2405 request calls have write down the services selection handling procedure during the recording operation with second embodiment.At this moment, write down the service_bound_flag 2205 that one group of 2402 that receive from the AIT monitoring unit, that version has been upgraded new AIT is at first checked in services selection unit 2404.
If in AIT, do not have the java applet of service_bound_flag=0, then determine the service that will not write down simultaneously by record channel identifier (it is again by 2403 appointments of record registering unit) service specified.
On the other hand, even in AIT, there is the java applet of a service_bound_flag=0, then begin specific operation to the service that will write down simultaneously by record channel identifier service specified.In other words, all the group AIT from AIT monitoring unit 2402 output are checked,, have the service that the service of this AIT will be write down exactly simultaneously so in this AIT even the java applet of a service_bound_flag=0 is arranged.
After this, write down services selection unit 2404 to write down services selection handling procedure call unit 2405 notify up-to-date AIT, with the PMT of the service that is judged as the corresponding PMT of the service that will write down simultaneously group and will writes down, and request call has write down the services selection handling procedure.Then, as previously mentioned, write down that services selection handling procedure call unit 2405 will write down and the return value of reproduction processes program Notification Method returns to and writes down services selection unit 2404.After this processing procedure identical with described in second embodiment.
Below, the typical operation of the present embodiment of structure as mentioned above is shown.
Figure 38 shows in the present embodiment, when the flow chart of the overview that is included in service log in the broadcast wave processing procedure in second memory cell 1307 time.
In S3801, java applet or other program offer record registering unit 2403 with channel identifier, record start time and record end time.Proceed to S3802 then, record registering unit 2403 is waited for, the set time section before the specified record start time.After this, when arriving in this set time of specified record start before time during section, this processing procedure proceeds to S3803, and 2403 requests of record registering unit have been write down services selection unit 2404 opening entries and handled.Write down services selection unit 2404 and repeated following processing procedure, until arriving the specified record end time.
When the edition upgrading of AIT or PMT takes place when, perhaps take place because the PMT that the edition upgrading of PAT causes when upgrading, this processing procedure proceeds to S3804, and write down services selection unit 2404 based on the service_bound_flag that comprises by the AIT of the service that will write down of channel identifier appointment, determined the service that to write down simultaneously.Write down services selection unit 2404 and specified the service that to write down simultaneously, and asked to have write down services selection handling procedure call unit 2405 and call the notify method that writes down the services selection handling procedure.According to return value, branch appears in this processing procedure in the following manner.
If return value is 2, then this processing procedure proceeds to S3807, and will comprise that all mpeg 2 transport streams by channel identifier (it is again by 2403 appointments of record registering unit) service specified are recorded in second memory cell 1307.
If return value is 1, then this processing procedure proceeds to S3808, and only will be recorded in second memory cell 1307 by the video/audio ES and the segmentation of channel identifier (it is again by 2403 appointments of record registering unit) service specified.
If return value is 0, then this processing procedure proceeds to S3805, and at all java applets by the AIT of the channel identifier service specified of appointment, checks the value of service_bound_flag.Under the situation of the service_bound_flag=1 of all java applets, this processing procedure proceeds to S3808, carries out explanation before.On the other hand, be at the service_bound_flag of not all java applet under 1 the situation, this processing procedure proceeds to S3806, and many service logs allow handling procedure call unit 2407 to be required to call the AllowMultiServiceRec method that many service logs allow handling procedure.If the result is false, then this processing procedure proceeds to aforesaid S3808.Yet if the result is true, this processing procedure proceeds to aforesaid S3807.
When the processing after above-mentioned each branch all finished, this processing procedure turned back to S3803, and repeated to handle.
According to present embodiment, on the basis of the effect of second embodiment, can optionally only write down supposition is normally to carry out the necessary service of java applet, feasiblely like this can normally carry out this java applet and does not waste space in the memory cell.
(the 9th embodiment)
Below, the apparatus and method according to the ninth embodiment of the present invention are described with reference to the accompanying drawings.
As Figure 26 be configured to the hardware configuration of present embodiment as shown in Figure 14.Because Figure 26 has the 26S Proteasome Structure and Function identical with the 3rd embodiment, so omitted explanation.Because Figure 14 has the 26S Proteasome Structure and Function identical with first embodiment, so omitted explanation.In the present embodiment, each hardware component units has following input and output setting.
At first, Figure 27 shows the concept nature statement of physical connection order, processing details and the I/O data format of each equipment under the situation that is illustrated in the ES of appointment in the only record service.Because this is a same structure as described in the third embodiment, so omitted explanation.
Then, Figure 28 shows the physical connection order that is illustrated in each equipment of record viability, the concept nature statement of handling details and I/O data format.Because this is a same structure as described in the third embodiment, so omitted explanation.
The example of relevant hardware configuration of the present invention so far, has been described.After this, major function of the present invention is described, that is, and by the record and the reproduction of java applet control service.
Here Figure 18 to Figure 21 and Figure 23 of using among first embodiment have been reused, so that explanation is used for the structure and the screen configuration of every kind of data type of present embodiment; Here also used the AIT form shown in Figure 30 of the 4th embodiment.Because therefore these figure identical with described in the first and the 4th embodiment omitted explanation.
The software configuration that uses in the present embodiment is constructed to as Figure 17 and shown in Figure 24.For Figure 17 and Figure 24, except AIT monitoring unit 2402, write down services selection handling procedure call unit 2405 and having write down the services selection unit 2404, other component units is all identical with described in first embodiment those, so omitted explanation.In addition, write down services selection handling procedure call unit 2405 identical with described in second embodiment, therefore omitted explanation.Therefore AIT monitoring unit 2402 identical with described in the 7th embodiment omitted explanation.
Present embodiment write down the part revision that writes down services selection unit 2404 that services selection unit 2404 is first embodiment, and when providing the method for PMT different from writing down when services selection handling procedure call unit 2405 request calls have write down the services selection handling procedure during the recording operation with first embodiment.At this moment, write down the service_bound_flag2205 that one group of 2402 that receive from the AIT monitoring unit, that version has been upgraded new AIT is at first checked in services selection unit 2404.
If in AIT, do not have the java applet of service_bound_flag=0, then determine the service that will not write down simultaneously by record channel identifier (it is again by 2403 appointments of record registering unit) service specified.
On the other hand, even in AIT, there is the java applet of a service_bound_flag=0, then begin specific operation to the service that will write down simultaneously by record channel identifier service specified.In other words, all the group AIT from AIT monitoring unit 2402 output are checked,, have the service that the service of this AIT will be write down exactly simultaneously so in this AIT even the java applet of a service bound_flag=0 is arranged.
After this, write down services selection unit 2404 to write down services selection handling procedure call unit 2405 notify up-to-date AIT, with the PMT of the service that is judged as the corresponding PMT of the service that will write down simultaneously group and will writes down, and request call has write down the services selection handling procedure.Then, as previously mentioned, write down that services selection handling procedure call unit 2405 will write down and the return value of reproduction processes program Notification Method returns to and writes down services selection unit 2404.
If return the PMT array from writing down services selection handling procedure call unit 2405, then write down the service groups that specified pmt table shows simultaneously.All ES that represent in the PMT array (in other words, audio frequency, video) and composition are set in the PID filter 1502 and section filter 1503 of TS decoder about all PID and the table_id of the segmentation ES of the service of all PMT.Yet, in second memory cell 1307, have under the situation of remaining space seldom, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.
Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 27 by storehouse 1701b.Then, according to the described flow process of Figure 27, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, if return " sky ", then write down the definite through the following steps service that will write down simultaneously in services selection unit 2404 from writing down services selection handling procedure call unit 2405.
At first, write down services selection unit 2404, and checked the service_bound_flag that is included in all java applets in this service with reference to AIT.
If for all java applets, service_boudnd_flag=1 has then write down services selection unit 2404 and has only write down the service that will write down by the channel identifier appointment.In other words, all ES (in other words, audio frequency, video) that represent among the PMT of the service that write down and all PID and the table_id that forms the segmentation ES of this service are set in the PID of TS decoder filter 1502 and section filter 1503.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 27 by storehouse 1701b.Then, according to the described flow process of Figure 27, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
On the other hand, under the situation of the java applet that service_bound_flag=0 is arranged, write down services selection unit 2404 and allowed 2407 requests of handling procedure call unit to judge whether to allow a plurality of services of record to many service logs.Allow handling procedure call unit 2407 to return under the situation of " vacation " at many service logs, carry out described processing procedure under the service_bound_flag=1 situation, only record is by the specified service that will write down of channel identifier.Allow handling procedure call unit 2407 to return under the situation of " very " at many service logs, all specified services of record object channel identifier when writing down by the removal redundancy.In other words, all ES of expression (in other words in organizing with the corresponding PMT of while record object channel identifier, audio frequency, video) and form all PID and table_id about the segmentation ES of the service of described PMT, be set in the PID filter 1502 and section filter 1503 of TS decoder.
Yet, in second memory cell 1307, have seldom under the remaining space situation, according to last space, only write down a part of audio/video ES and segmentation.In other words, write down services selection unit 2404 and checked remaining space in second memory cell 1307, and the PID filter 1502 of TS decoder and section filter 1503 have been set so that only the audio/video ES that can write down this remaining space into divide segment record to advance in second memory cell 1307 by storehouse 1701b.Can determine requisite space with any particular algorithms.For example, the bit rate of audio/video ES is written in the transport stream, and can be obtained by storehouse 1701b.A kind of method is arranged according to bit rate with calculate the required amount of space of record writing time, and do not write down at least can not record audio/video ES service.After this, set the output destination of each hardware component units, so that follow the processing procedure of service log in second memory cell 1307 that will be included in the broadcast wave shown in Figure 27 by storehouse 1701b.Then, according to the described flow process of Figure 27, all ES that form desired channel are recorded in the recording areas of having guaranteed 1504.
Be desirably in finish before the specified record start time aforesaid, occur in the preliminary treatment before actual the record.The actual record that carries out in recording areas 1504 occurs in after the specified zero-time.
After this,, write down the tuning processing that services selection unit 2404 stops tuner 1704c, and made mpeg 2 transport stream write end in the recording areas 1504 when arriving specified record end during the time.In addition, create recorded information admin table as shown in figure 29, as the management information of the mpeg 2 transport stream that writes down before.Notice that AIT information management matrix section is merged by the table with 2401 establishments of segmentation selected cell.
Processing procedure in addition is identical with the processing procedure that application state management unit among first embodiment carries out.
Below, show the typical operation of the present embodiment of structure as mentioned above.
Figure 39 shows in the present embodiment, when the flow chart of the overview that is included in service log in the broadcast wave processing procedure in second memory cell 1307 time.
In S3901, java applet or other program offer record registering unit 2403 with channel identifier, record start time and record end time.Proceed to S3902 then, record registering unit 2403 is waited for, the set time section before the specified record start time.After this, when arriving in this set time of specified record start before time during section, this processing procedure proceeds to S3903, and 2403 requests of record registering unit have been write down services selection unit 2404 opening entries and handled.Write down services selection unit 2404 and repeated following processing procedure, until arriving the specified record end time.
When the edition upgrading of AIT or PMT takes place when, perhaps take place because the PMT that the edition upgrading of PAT causes when upgrading, this processing procedure proceeds to S3904, and write down services selection unit 2404 based on the service_bound_flag that comprises by the AIT of the service that will write down of channel identifier appointment, determined the service that to write down simultaneously.Write down services selection unit 2404 and specified the service that to write down simultaneously, and asked to have write down services selection handling procedure call unit 2405 and call the notify method that writes down the services selection handling procedure.According to return value, branch appears in this processing procedure in the following manner.
In return value is under the situation of PMT array, this processing procedure proceeds to S3905, according to last space in second memory cell 1307, write down all audio/video ES and the segmentation that services selection unit 2404 will be included in this PMT array and be recorded in second memory cell 1307.
Under return value was empty situation, this processing procedure proceeded to S3906, and at all java applets by the AIT of specified channel identifier service specified, checked the value of service_bound_flag.Under the situation of the service_bound_flag=1 of all java applets, this processing procedure proceeds to S3907, and only will be recorded in second memory cell 1307 by the video/audio ES and the segmentation of this channel identifier (it is again by 2403 appointments of record registering unit) service specified.
On the other hand, in S3906, be at the service_bound_flag of not all java applet under 1 the situation, this processing procedure proceeds to S3908.Here, many service logs allow handling procedure call unit 2407 to be required to call the AllowMultiServiceRec method that many service logs allow handling procedure.If the result is false, then this processing procedure proceeds to aforesaid S3907.On the other hand, if the result is true, then this processing procedure proceeds to S3909, and according to last space in second memory cell 1307, will be recorded in second memory cell 1307 with video/audio ES and the segmentation of corresponding all PMT of service that will write down simultaneously.
When the processing after above-mentioned each branch all finished, this processing procedure turned back to S3903, and repeated to handle.
According to present embodiment, on the basis of the effect of the 3rd embodiment, can optionally only write down the necessary service of normal execution java applet, make like this and can normally carry out this java applet and do not waste space in the memory cell.
Some above-mentioned embodiment brief descriptions embodiments of the invention, but also can consider other embodiment and not depart from scope of the present invention.In addition, a kind of configuration can be wherein to select and made up the main processing procedure of each embodiment.Can substitute the part that realizes with software in the above-mentioned specification with hardware, vice versa.
In the explanation of these embodiment, for each java applet all with writing down channel identifier simultaneously, but write down channel identifier simultaneously and also can be written as a tabulation among the AIT,, wherein removed redundant content with as reproducing the necessary tabulation of writing down channel identifier simultaneously of service.
Many service logs allow the method Handler.allowMultiServiceRec () of handling procedure can have a kind of like this configuration, it provides and method Handler.notify (the AIT ait that writes down the services selection handling procedure, PMT pmt, PMT pmt[]) the same parameter of parameter, be used as parameter; Perhaps in other words, be a kind of like this configuration, PMT of the PMT of the service that it provides AIT, will write down, the service that will write down simultaneously etc.In this case, because many service logs allow handling procedure can obtain the information of the service that relevent arrangement will write down, so can carry out more suitably judgement according to situation.In addition, these method parameters are not limited to AIT and PMT, and can be arbitrarily, as long as can obtain the information about the service that will write down and the service that will write down simultaneously.
In these embodiments, show the structure that is used for wired system, but the type that can be independent of broadcast system is used the present invention.For example, the distribution of television programs system that can be easy to apply the present invention to satellite system, surface wave system or use IP network.In addition, because the difference between the present invention and each broadcast system does not have direct relation, so the present invention can be applied to any transmission medium and irrelevant with broadcast system.Guard system is not wired or wireless system, can use the present invention.
The AV decoder needn't be decoded to video and audio frequency simultaneously.Even video that the AV decoder is constructed to separate and audio decoder also can be implemented the present invention.In addition, the AV decoder can have at such as the decoding function of the data of closed caption (closed captioning) etc. and need not any intervention.By the audio signal of AV decoder decode and the vision signal any stage before can be in being stored in recording areas 1504 by scrambling.
In these embodiments, provided an example, wherein introduced being used for the adapter that controlled condition inserts, but this adapter has been not necessary to realization of the present invention.This adapter can be any form, and the structure of this adapter is not fine yet.In this case, in Figure 15, come the mpeg 2 transport stream of self-tuner to be directly inputted in the TS decoder.The present invention also can be applied to this situation.In addition, the clearance that inserts of the condition of being carried out by adapter is not necessary to carry out before the TS decoder.A kind of configuration that is easy to implement is, adapter at an arbitrary position and be used to condition inserted and let pass, and the present invention also can be applicable to this situation.
The AV encoder can be an arbitrary format with the coded format that the Voice ﹠ Video signal encoding becomes.No matter any coded format all can be used the present invention.
The multiplexed format of multiplexer also can be an arbitrary format.No matter any multiplexed format all can be used the present invention.
Display and loud speaker can be contained in broadcast recoding and the transcriber, and perhaps Wai Bu display and loud speaker can be connected to broadcast recoding and transcriber.Not how are the position of tube display and loud speaker and quantity, all can use the present invention.
Even CPU itself be the system that carries out multiprocessing (described processing be TS decoding, AV decoding, AV coding and multiplexing whole or some), also can implement the present invention.
As the form of record service, mpeg 2 transport stream also can directly recorded the recording areas after tuner output, and without the TS decoder; Perhaps, the transducer conversion that is used for changing the form of mpeg 2 transport stream by installation is come the form of the mpeg 2 transport stream of self-tuner, and it is recorded in the recording areas.No matter any service log method can be implemented the present invention.
But some Java Virtual Machine is converted to the execute form that can be explained by CPU with bytecode, and the result that will obtain passes to CPU, is carried out by this CPU; The present invention also can be applicable to this situation.
The foregoing description has been described a kind of implementation method about AIT, wherein obtains transport stream in being with; Yet the method that is used to inquire about the java applet that AM should carry out not merely depends on this AIT.In the OCAP that supposition is just being used by U.S. wired system, used XAIT, it is the same and with OOB transmission synchrodata with AIT.In addition, can consider such as beginning to carry out the program of prerecord in ROM, beginning to carry out the method for the program downloading and be recorded in second memory cell etc.
The method that is used to write down DSM-CC file system and AIT file can be an any means.
Even will filter and obtain the method for AIT segmentation and the method that DSM-CC divides segment record to advance the file will be combined from mpeg 2 transport stream, also can realize the present invention with unique format.In addition, even will filter and obtain the method for DSM-CC segmentation and the method that AIT divides segment record to advance the file is combined, also can realize the present invention from mpeg 2 transport stream with unique format.
Although top has been described in detail some exemplary embodiment of the present invention, those skilled in the art will readily appreciate that, in the exemplary embodiment a lot of modification can be arranged not departing from essence under the situation of novel teachings of the present invention and advantage.Therefore, all such modification all are to be included in the scope of the present invention.
Industrial applicibility
Can be used to according to recording and reconstruction device of the present invention and recording and reconstruction method Consumer electronics industry is as being used for the device of recording and reconstruction broadcasting. For example, the present invention can Be applied to wired STB, DTV etc. In addition, the present invention also can be applicable to have broadcast and connects Receive the equipment of function, for example, mobile telephone equipment etc.
Claims (20)
1. one kind is write down and transcriber, comprising:
Receiving element, be used to receive a plurality of services, each service comprises video information, audio-frequency information, program, synchronizing information and element of service identifying information, wherein, described synchronizing information is used for described video information and described audio-frequency information and described Program Synchronization, and described element of service identifying information is used to discern described video information, audio-frequency information, program and synchronizing information;
Record cell, the reservation service that is used for the appointment of a plurality of services that will be received records in the recording medium;
Reproduction units is used for being reproduced in the reservation service that is received or is recorded in video information and the audio-frequency information that comprises in the reservation service in the described recording medium; And
Program execution unit is used for carrying out in the reservation service that is received or is recorded in the program that comprises in the reservation service in the described recording medium,
Wherein, described record and transcriber:
By according to the program that comprises in the reservation service of described synchronizing information executive logging in described recording medium, with the Program Synchronization that in described reservation service, comprises be reproduced in video information and the audio-frequency information that comprises in the described reservation service;
Described synchronizing information or described element of service identifying information take place more to obtain again and the corresponding element of service identifying information of described reservation service under the news in the specified reservation service in a plurality of services that described recording unit records received; And
Separate specified reservation service based on the element of service identifying information that is obtained, and the service that described recording unit records is separated.
2. record according to claim 1 and transcriber,
Wherein, described record and transcriber:
Described synchronizing information or described element of service identifying information take place more under the news when described record cell writes down, obtain again with a plurality of services that received in the corresponding element of service identifying information of specified reservation service; And
Separate specified reservation service based on the element of service identifying information that is obtained, and video information, audio-frequency information, program, synchronizing information and element of service identifying information that described recording unit records is comprised in the service that is separated.
3. record according to claim 1 and transcriber,
Wherein, described record and transcriber:
Described synchronizing information or described element of service identifying information take place more under the news when described record cell writes down, obtain again with a plurality of services that received in the corresponding element of service identifying information of specified reservation service; And
Separate specified reservation service based on the element of service identifying information that is obtained, and make described recording unit records and the corresponding transport stream of the service that is separated.
4. record according to claim 1 and transcriber,
Wherein, the program that is included in first service of the appointment that will write down is also included within second service;
Described synchronizing information comprises the execution information that continues, and its indication is when will described first service at reproduction period switching to described second service and reproduce described second and whether can continue to carry out described first the program in serving that is included in when serving; And
Even with described first service in the continuation execution information indication that comprises in the corresponding synchronizing information of program that comprises when switching to described second service and reproducing described second and also can continue to carry out under the situation of described program when serving, described record and transcriber are based on the element of service identifying information that is obtained, except the first specified service, also described second service is separated into reservation service, and the service that described recording unit records is separated.
5. record according to claim 1 and transcriber,
Wherein, only allowing to write down simultaneously under the situation of first service and second service, described record and transcriber are based on the element of service identifying information that is obtained, except the first specified service, also described second service is separated into reservation service, and the service that described recording unit records is separated.
6. one kind is write down and transcriber, comprising:
Receiving element, be used to receive a plurality of services, each service comprises video information, audio-frequency information, program, synchronizing information and element of service identifying information, wherein, described synchronizing information is used for described video information and described audio-frequency information and described Program Synchronization, and described element of service identifying information is used to discern described video information, audio-frequency information, program and synchronizing information;
Record cell, first service log of appointment that is used for a plurality of services that will be received is in recording medium;
Reproduction units is used for being reproduced in first service that is received or is recorded in video information and the audio-frequency information that comprises in the service of first in the described recording medium; And
Program execution unit is used for carrying out in first service that is received or is recorded in the program that comprises in the service of first in the described recording medium,
Wherein, by according to the program that comprises in first service of described synchronizing information executive logging in described recording medium, be reproduced in to described record and transcriber and the Program Synchronization that in described first service, comprises described first video information and the audio-frequency information that comprises in serving;
The program that is included in described first service that appointment will write down is also included within second service;
Described synchronizing information comprises the execution information that continues, and its indication is when will described first service at reproduction period switching to described second service and reproduce described second and whether can continue to carry out described first the program in serving that is included in when serving; And
Even with described first service in the continuation execution information indication that comprises in the corresponding synchronizing information of program that comprises when switching to described second service and reproducing described second and also can continue to carry out under the situation of described program when serving, described record and transcriber are based on the element of service identifying information that is obtained, except the first specified service, also described second service is separated into reservation service, and the service that described recording unit records is separated.
7. record according to claim 6 and transcriber,
Wherein, the program that is included in described first service that appointment will write down is also included within second service;
Described synchronizing information comprises the execution information that continues, and its indication is when will described first service at reproduction period switching to described second service and reproduce described second and whether can continue to carry out described first the program in serving that is included in when serving; And
Even with described first service in the continuation execution information indication that comprises in the corresponding synchronizing information of program that comprises when switching to described second service and reproducing described second and also can continue to carry out under the situation of described program when serving, described record and transcriber are based on the element of service identifying information that is obtained, except the first specified service, also described second service is separated into reservation service, and makes described recording unit records and the corresponding transport stream of the service that is separated.
8. record according to claim 7 and transcriber,
Wherein, only allowing to write down simultaneously under the situation of described first service and described second service, described record and transcriber are based on the element of service identifying information that is obtained, except the first specified service, also described second service is separated into reservation service, and makes described recording unit records and the corresponding transport stream of the service that is separated.
9. according to claim 1 or 6 described record and transcribers,
Wherein, under with the situation of service log in the described recording medium, described record cell is converted to another kind of form with the file format of service, and writes down the term of validity of described file with described service.
10. according to claim 1 or 6 described record and transcribers,
Wherein, when upgrading described synchronizing information or described element of service identifying information, described record cell restarts to write down described service at every turn.
11. one kind is write down and transcriber, comprising:
Receiving element, be used to receive a plurality of services, each service comprises video information, audio-frequency information, program, synchronizing information and element of service identifying information, wherein, described synchronizing information is used for described video information and described audio-frequency information and described Program Synchronization, and described element of service identifying information is used to discern described video information, audio-frequency information, program and synchronizing information;
Record cell, the reservation service that is used for the appointment of a plurality of services that will be received records in the recording medium;
Reproduction units is used for being reproduced in the reservation service that is received or is recorded in video information and the audio-frequency information that comprises in the reservation service in the described recording medium; And
Program execution unit is used for carrying out in the reservation service that is received or is recorded in the program that comprises in the reservation service in the described recording medium,
Wherein, described record and transcriber:
By according to the program that comprises in the reservation service of described synchronizing information executive logging in described recording medium, with the Program Synchronization that in described reservation service, comprises be reproduced in video information and the audio-frequency information that comprises in the described reservation service;
Described synchronizing information or described element of service identifying information take place more under the news in the described reservation service of described recording unit records, obtain again with a plurality of services that received in the corresponding synchronizing information of specified reservation service; And
Separate specified reservation service based on the synchronizing information of being obtained, and the service that described recording unit records is separated.
12. record according to claim 11 and transcriber,
Wherein, described synchronizing information comprises recorded information and continuation execution information simultaneously, wherein, second service that will write down simultaneously under the situation of first service that will write down is specified in the recorded information indication of described while at record, described continuation execution information indication is when will described first service at reproduction period switching to described second service and reproduce described second and whether can continue to carry out described first the program in serving that is included in when serving; And
Even with described first service in the continuation execution information indication that comprises in the corresponding synchronizing information of program that comprises when switching to described second service and reproducing described second and also can continue to carry out under the situation of described program when serving, described record and transcriber are based on recorded information when comprising in the synchronizing information of being obtained, except the first specified service, also described second service is separated into reservation service, and the service that described recording unit records is separated.
13. record according to claim 12 and transcriber,
Wherein, only allowing to write down simultaneously under the situation of described first service and described second service, described record and transcriber are based on recorded information when comprising in the synchronizing information of being obtained, except the first specified service, also described second service is separated into reservation service, and the service that described recording unit records is separated.
14. record according to claim 11 and transcriber,
Wherein, described record separates specified reservation service with transcriber based on recorded information when comprising in the synchronizing information of being obtained, and video information, audio-frequency information, program, synchronizing information and element of service identifying information that described recording unit records is comprised in the service that is separated.
15. record according to claim 11 and transcriber,
Wherein, described record separates specified reservation service with transcriber based on the synchronizing information of being obtained, and makes described recording unit records and the corresponding transport stream of the service that is separated.
16. record according to claim 11 and transcriber,
Wherein, under with the situation of service log in the described recording medium, described record cell is converted to another kind of form with the file format of service, and writes down the term of validity of described file with described service.
17. record according to claim 11 and transcriber,
Wherein, when upgrading described synchronizing information or described element of service identifying information, described record cell restarts to write down described service at every turn.
18. record according to claim 11 and transcriber,
Wherein, described synchronizing information comprises the execution information that continues, and its indication is when will described first service at reproduction period switching to described second service and reproduce described second and whether can continue to carry out described first the program in serving that is included in when serving, and
Described record and transcriber:
Described synchronizing information or described element of service identifying information take place more to obtain again and the corresponding synchronizing information of described reservation service under the news in the specified reservation service in a plurality of services that described recording unit records received; And
Carry out the specified reservation service of information separated based on the continuation that in the synchronizing information of being obtained, comprises, and the service that described recording unit records is separated.
19. record according to claim 12 and transcriber,
Wherein, described record separates specified reservation service with transcriber based on recorded information when comprising in the synchronizing information of being obtained, and video information, audio-frequency information, program, synchronizing information and element of service identifying information that described recording unit records is comprised in the service that is separated.
20. record according to claim 11 and transcriber,
Wherein, described record separates specified reservation service with transcriber based on the synchronizing information of being obtained, and makes described recording unit records and the corresponding transport stream of the service that is separated.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68762405P | 2005-06-06 | 2005-06-06 | |
| US60/687,624 | 2005-06-06 | ||
| US60/751,374 | 2005-12-19 |
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| Publication Number | Publication Date |
|---|---|
| CN101194508A true CN101194508A (en) | 2008-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800201343A Pending CN101194508A (en) | 2005-06-06 | 2006-06-05 | Recording and reproduction apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN101194508A (en) |
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- 2006-06-05 CN CNA2006800201343A patent/CN101194508A/en active Pending
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