MX2007008411A - Broadcast recording apparatus. - Google Patents

Abstract

A broadcast recording apparatus according to the present invention includes: a JMF (2205a) which records video/audio data into a recording area (3113); a storage administration library (3605h) which, in the case where an extracted Java program and AIT differ from an already-recorded Java program and AIT, attaches a timestamp to the extracted Java program and AIT and records the Java program and AIT in the recording area (3113), as well as creating storage administration information which indicates a storage place of the Java program within the recording area (3113); and a service manager (2204) and a Java VM (2203) which read out and execute the Java program from the storage place indicated by the storage administration information.

Description

TRANSMISSION RECORDING EQUIPMENT FIELD OF THE INVENTION The present invention relates to a recording transmission apparatus that accumulates and reproduces a transmission wave. In particular, the present invention relates to a mechanism that accumulates data from an application program included in a transmission wave sent repeatedly, as well as video / audio data sent synchronized with this data, and which reproduces this in synchronization with the video and audio data. BACKGROUND OF THE INVENTION Several data are included in a transmission wave sent from a transmitting station. In these data, there are data that are sent in time sequence, such as video / audio and data that are sent repeatedly to a fixed interval. In terms of data that are repeatedly sent to a fixed interval, there are, for example, data such as transmission of data represented by BML and application programs (hereinafter referred to as applications) sent in a transmission wave together with the video / audio , and so on. Although it is not possible to reacquire data sent in time sequences when the acquisition fails once, with data sent repeatedly in a fixed interval, the same data is sent REF. : 181906 repeatedly and therefore it is possible to reacquire the data even when the acquisition has failed once. At the moment specifications have been developed and are in operation that refer to an environment in which a transmission wave is received that includes this type of video / audio and application and the application and video / audio are executed in synchrony. For example, a specification called Digital Video Broadcasting Multimedia Home Platform (DVB-MHP) has been developed in Europe, and operations according to the specification are already starting. In addition, a specification that supports a cable transmission environment, called the Open Cable Application Platform (OCAP), is being developed in the United States, and operations are scheduled to begin in 2005. Furthermore, it has recently been under development. DVR, which adds a function in which a user of the OCAP specification can record and play a selected service. Here, a service includes audio / video and an application related to video / audio. Therefore, there is a demand for a function that accumulates video / audio as well as an application, and a function that executes the application in sync with the accumulated video / audio. Note that it was mentioned above that there are data in a transmission wave that are sent repeatedly.

However, in the MHP / OCAP / OCAP-DVR specifications mentioned above, a table expressing the structure of a television program of the transmission wave, a table that expresses the control information of the application and so on, in addition to data in the form of carousel of the application, exist as the data sent repeatedly in the transmission wave. In MHP / OCAP / OCAP-DVR, a method is provided in which the same applications are initiated and terminated according to control information indicated in the Application Control Information (AIT); in OCAP-DVR, when a recorded transmission wave is reproduced, the application is acquired and accumulated from the transmission wave each time the application is started and finished, which is a wasteful use of filter resources and an area of recording. The transmission recording apparatus is, for example, a DVD or HDD installed as the recording area, but in general, these recording areas are limited. In addition, in the MHP / OCAP / OCAP-DVR specifications mentioned above, when each type of table mentioned above is acquired above a transmission wave received from a transmission station or a transmission wave stored in the recording area, the resources of Filter to extract each table from the transmission wave are required on a per-table basis. Also, during the "magic reproduction" (high-speed playback, skip playback and so on) as prescribed in the OCAP-DVR specifications, it is difficult to extract the tables of the transmission wave stored in the recording area in real time. In particular, with respect to the acquisition during skip playback of a table having a position information of a skip destination (NPT coefficient), it is necessary to acquire a table in which that position information is multiplexed with a previous time / next that differs from the video / audio playback time; however, depending on general filter resources, it is not possible to acquire a table in which the playing time of the video / audio is mutiplexed with different previous / next time. Because of this, it is preferable to accumulate each table extracted during the accumulation in a different way than the transmission wave, thus reducing the extraction processing of tables during reproduction. Therefore, when data such as applications and several tables sent repeatedly in the transmission wave are accumulated / reproduced, a device that efficiently accumulates / reproduces without a wasteful consumption of resources is required, such as filter resources to extract each type of resource. recording area table, transmission wave and so on. In patent reference 1 (Japanese patent open to the public No. 2001-8176) (figure 1), when data are collected in the form of a carousel sent repeatedly, a version check is executed on the acquired data, and the reduction of a recording area is achieved by recording only data of a new version and not record data of an identical version. In addition, the data of each version are recorded associated with a period of validity, and it is possible to achieve a change of version of the data during playback by creating a stream that synchronizes video / audio with the data during playback. Here, data of an identical version refers to when the pre-sent data sent repeatedly does not differ from the previous data, and the data of a new version refers to when the pre-sent data sent repeatedly if it differs from the previous data. In Patent Reference 2 (Japanese Patent Laid-Open No. 2004-502350), the reduction of a recording area is achieved by recording data in the form of a carousel sent repeatedly in a module unit as indicated in Digital Storage Media. - Command and Control (DSMCC), without recording the data as a current. In addition, it is possible to achieve a change of version of the module during playback by recording each version of the associated module with a validity period. In the technologies of patent references 1 and 2, it is possible to achieve the reduction of the recording area by recording each version of the data with a period of validity, and achieve a change of the version of the data during the reproduction, without the data in the form of carousel sent repeatedly overlapping . The application data that is the carousel-shaped data described in the MHP / OCAP / OCAP-DVR specifications mentioned above is formed in an object unit prescribed by the DSMCC specifications. However, between the patent references 1 and 2, the reduction of the recording area through non-overlapping recording, the module unit prescribed by the DSMCC specifications, is described, but the recording of data in object units as the prescribed by the DSMCC specifications is not described. In fact, because unique object data is more detailed data that has unnecessary data removed from the module unit data, the object unit data leaves more space for improvements in terms of improving the wasteful consumption of recording areas by data recording in module units. In addition, as mentioned above, in the specifications MHP / OCAP / OCAP-DVR, a table that expresses the structure of a television program in the transmission wave, a table that expresses control information of the application and so on, there are , in addition to data in the form of a carousel of the application, as the data sent repeatedly in the transmission wave. However, patent reference 1 and 2 are technologies that refer only to efficient data recording in the form of a carousel. In conventional technology, these tables are considered part of the current, and there is no concept to extract these tables from the current and record the tables; there is no technology that refers to the recording of these tables. In addition, as already mentioned, in the MHP / OCAP / OCA-DVR specifications, when the table representing the control information included in the transmission wave is acquired, filter resources are needed that extract each table. However, there is no improvement in the wasteful consumption of filter resources during the reproduction of a transmission wave stored in a recording area. In addition, particularly during "magic playback" (high-speed playback, skip playback), it is difficult to use these filter resources to extract the table in real time from the transmission wave stored in a recording area. In particular, with respect to the acquisition during skip reproduction of a table having position information of a skip destination (NPT coefficient), it is necessary to acquire a table in which that position information is multiplexed with a time previous / next that differs from the video / audio playback time; however, depending on general filter resources, it is not possible to acquire this table in which the video / audio playback time is multiplexed with the different previous / next time. Because of this, it is preferable to accumulate each table extracted during the accumulation in a different way than the transmission wave, thus reducing the extraction processing of tables during reproduction. However, patent reference 1 does not improve the following problem: when a transmission wave that is stored in a recording area is reproduced, a format is taken in which the reformed transmission wave is reproduced from the stored data , and during playback through this format, it is necessary to process each table of the transmission wave; therefore, the extraction of tables during "magic reproduction" is difficult. BRIEF DESCRIPTION OF THE INVENTION Accordingly, a first objective of the present invention is: to reduce the use of a recording area and necessary data filter resources when accumulated and reproduced data repeatedly sent in a transmission wave. Furthermore, a second objective of the present invention is to record, at the time of recording, a Carousel of objects that constitute an application only once and without duplication, and, at the time of reproduction, start / end an application from the corresponding carrousel of recorded objects, in accordance with control information indicated by Application Control Information (AIT); Through this, even if the application is repeatedly started / terminated, the object carousel does not have to be acquired each time, which reduces the recording area. Moreover, a third objective of the present invention is to reduce the data extraction processing that uses filter resources during the reproduction of a recording area through accumulating necessary tables and so on, which are extracted from the transmission wave. using filter resources, in a recording area in a form that differs from the transmission wave at the time of accumulation; and providing, to a user, the observation of a transmission coordinated with the time of reproduction of a transmission wave received from a transmission station, even during playback with a high load, such as "magical reproduction" of a recording area . In order to achieve the objects mentioned above, a transmission recording apparatus according to the present invention is a recording apparatus for Transmissions that record and reproduce a transmission wave, and include: a receiving unit that receives the transmission wave; an observed data extraction unit that extracts, from the transmission wave received by the receiving unit, observed data indicating a content to be viewed; a repetition data extraction unit that extracts, from the transmission wave received by the receiving unit, an application program and a program table that are repeatedly included in the transmission wave, the program table indicates a list of programs of application present in the transmission wave; a recording medium having an area for recording the observed data, the application program and the program table; an observed data recording management unit that records the observed data extracted by the data extraction unit observed in the recording medium; a program recording management unit that sets a timestamp to the application program extracted by the repeating data extraction unit in case the extracted application program is different from the application program already recorded on the recording medium , and record the application program to which the time stamp was set on the recording medium; a table recording management unit that sets a time stamp to the program table extracted by the data extraction unit of repetition in case the extracted program table is different from the program table already recorded in the recording medium, and records the program table to which the time stamp was set on the recording medium; an information creation unit that creates storage management information indicating a recording location for the application program on the recording medium each time the program recording management unit records the application program on the recording medium; an observed data reproduction unit that plays the observed data recorded in the recording medium and a program execution unit that reads, from the recording location indicated by the storage management information, and executes the application program with a mark of time corresponding to a time of reproduction of the observed data, the application program being indicated by the program table with a timestamp corresponding to the time of information. For example, the program table indicates an application program that will be controlled at a time when the program table is received by the receiving unit, and a control content for the application program. Or, the program table indicates all the application programs included in a transmission wave service. Through this, when the program table, such as AIT and PMT, and the application program repeatedly included in the transmission wave are each identical to data already recorded in the recording medium, they are no longer recorded in that recording medium, and therefore it is possible to reduce the area of the recording medium that is used. Moreover, when recording the application program and program table repeatedly included in the transmission waveform in the recording medium in a form different from the shape in the transmission wave, use filter resources and extract the application program and the The program table of the recording medium during playback is unnecessary, and filtering processing can be omitted. In addition, the information creation unit can associate the storage administration information with the application program, and store the storage administration information in the program table recorded on the recording medium, each time the administration unit of programs record the application program on the recording medium; and the program execution unit can read the application program with the timestamp corresponding to the playback time of the storage location indicated by the storage management information stored in the program table, and run the application program. Through this, the recording location of the Application program recorded in the recording medium is recorded in the program table, and therefore the program execution unit can easily find the recording location of that application program program program when executing the application program indicated in the program table, and thus the processing load can be eased. In addition, the repeating data extraction unit can extract, from the transmission wave received by the receiving unit, the application program associated with a control content required for reproduction from among the application programs indicated in the program table.; and the program execution unit can read, from a recording position indicated by the storage management information, the application program associated with the control content required for the reproduction of between the application programs with a timestamp that corresponds to the playback time, and execute the application program. Through this, only the application program required for the reproduction is extracted from the transmission wave, and only the application program required for the reproduction is read from the recording medium and executed, and therefore it is possible to reduce the area of the recording medium that is used, and it is possible to lighten the load of prosecution. Further, the repeating data extraction unit may further extract, from the transmission wave received by the receiving unit, reproduction position information indicating a reproducing position of the observed data and being repeatedly included in the transmission wave; the transmission recording apparatus may further include a reproduction position recording management unit that sets a time stamp to the extracted reproduction position information and records the reproduction position information to which the mark has been affixed of time in the recording medium, in case the recording position information extracted by the repeating data extraction unit differs from the playback position information already recorded in the recording medium; and the observed data reproduction unit may, when a reproduction start time is indicated by the reproduction data, isolate the reproduction position corresponding to the reproduction start time indicated based on the reproduction position information to the that the time stamp was set, and start the reproduction of the observed data from the indicated reproduction position. Through this, when the reproduction position information repeatedly included in the wave of transmission, the information being, for example, a NPT coefficient, is identical to data already recorded in the recording medium, that information is no longer recorded in the recording video, and therefore it is possible to reduce more the area of the medium of recording that is used. In addition, because the reproduction position information to which the timestamp was set is recorded on the recording medium, when the reproduction start point is indicated, it is possible to immediately start the reproduction of the observed data at from the proper reproduction position. By the way, the patent references 1 and 2, which are conventional technology, are technologies that refer only to the effective recording of data in the form of a carousel. In a conventional transmission system (for example, digital transmission BS), when recording data in the form of a carousel separately, an effect of reducing the recording volume is obtained. However, in the conventional transmission system, it is not necessary to separately record other data, apart from the data in the form of a carousel, which are within the transmission wave. It is believed that this is because there is no service that achieves a close link between data from a recorded transmission wave and an application. However, in OCAP-DVR, 1) an application uses the data recorded in the transmission wave, or 2) the application it is controlled according to the data recorded in the transmission wave, and thus it is possible to implement a service that achieves a close link between the data of the transmission wave and the application. Therefore, in OCAP-DVR, a variety of effects can be obtained by separately recording other data apart from the data in the form of a carousel. For example, with respect to item 1) mentioned above, in OCAP-DVR, a hop function using position information (NPT coefficient) of a hop destination, is provided as a function to see the transmitted wave recorded as means of package. In case the position information of the hopping destination is multiplexed within the transmission wave, it is necessary to extract the position information of the hopping destination of the transmission wave at the time of playback, and in this way can not achieve a reproduction by instantaneous jump and a highly responsive observation. By setting a timestamp and recording the position information of the jump destination separately, it is possible to provide a highly responsive observation of the recorded transmission wave. In addition, with respect to item 2) mentioned above, in OCAP-DVR, an application control information (AIT) table is sent at a 30-second sending interval. seconds. By setting a timestamp to the application control information table and recording the table separately, in case skip playback is performed, it is possible to eliminate the timing at which the send interval has to be expected. , which is 30 seconds. Furthermore, according to the present invention, a transmission recording apparatus records and reproduces a transmission wave configured from a plurality of data and includes: a unit that receives the transmission wave; an extraction unit that extracts data from the transmission wave; a recording management unit that records the data extracted by the extraction unit in a recording area and extracts the recorded data in the recording area; and a reproduction unit that reproduces the data extracted by the recording management unit. Through this, a plurality of data contained in a transmission wave can be recorded and reproduced. In addition, the plurality of data included in the transmission wave includes a plurality of program data sent repeatedly in a fixed interval, the extraction unit repeatedly extracts, in a fixed interval, the program data sent repeatedly in a fixed interval; the recording management unit may not recording, in the recording area, the program data extracted by the extraction unit in the case of judging that the program data extracted by the extraction unit is the same as the program data extracted by the extraction unit before the fixed interval, and can record, in the recording area, the program data extracted by the extraction unit in case of judging that the program data extracted by the extraction unit is different from the program data extracted by the unit. extraction before the fixed interval; and the reproduction unit performs the execution of the program data extracted by the recording management unit of the recording area. Through this, the storage area of the program within the transmission wave is reduced, and the extraction processing is no longer necessary during playback. In addition, the program data sent repeatedly from the fixed interval are the program data that includes an identifier and a version, and the recording management unit judges that the program data extracted by the extraction unit is the same as the data of the program. program extracted by the extraction unit before the fixed interval, in case an identifier of the program data extracted by the extraction unit is the same as an identifier of the program data extracted by the extraction unit before the fixed interval and a version of the program data extracted by the extraction unit is the same as a version of the program data extracted by the extraction unit before the fixed interval. Through this, the storage area of the program within the transmission wave is reduced, and extraction processing during playback is not necessary. In addition, the plurality of data included in the transmission wave also includes video / audio data sent without being repeated in synchronization with the program data, the extraction unit also extracts the video / audio data; the recording management unit further records the video / audio data extracted by the extraction unit in the recording area and the playback unit plays the video / audio extracted by the recording management unit and executes a program extracted by the recording management unit. Through this, video / audio can be recorded and played along with a program. In addition, the recording management unit, when recording the program data in the recording area, also adds, to the program data, a period of validity indicating a time from when program data are the same as the program data. the program data was extracted first until when program data that is the same as the program data was extracted at the end, and records the program data; and, when the reproduction unit executes the program data, extracts, from the recording area, program data with a playing time within the validity period; and the reproduction unit synchronizes and performs video / audio playback extracted by the recording management unit and the execution of program data extracted by the recording management unit. Through this, it is possible to synchronize and play the program and video / audio. In addition, the plurality of data included in the transmission wave further includes a plurality of program control tables, each of which is repeatedly sent in a fixed interval and which has control information of the program data, and in addition , the plurality of data included in the transmission wave is grouped for a plurality of units called services, wherein each service has the video / audio data, the program data and one of the plurality of program control tables; the program control table is the program control table, which indicates a plurality of program data included in the same service that includes that program control table, as well as includes a version; the extraction unit also repeatedly extracts, in a fixed interval, one of the program control tables maintained by the prescribed service as a record, and repeatedly extracting, in a fixed interval, all the program data indicated in the extracted program control table; the recording unit does not record the program control table extracted by the extraction unit in case of judging that a version of the program control table extracted by the extraction unit is the same as a version of the control table of the extraction unit. programs extracted by the extraction unit before the fixed interval, and records the program control table extracted by the extraction unit in case of judging that a version of the program data extracted by the extraction unit is different from a version of the program data extracted by the extraction unit before the fixed interval, and even more so, when you record the program control table in the recording area, add to the program control table a period of validity indicating a moment from when a version of a program control table equal to the program control table was first extracted to when a version of a program data equals l that the program control table was finally extracted, and records the program control table, and further, when the reproduction unit executes the program data according to a service prescribing reproduction, extract, from the recording area, all the program data indicated in the control table of programs that have that moment of reproduction within the validity period; and the reproduction unit also carries out the execution of the data of program that the recording management unit brought, in accordance with the information of the program control table extracted by the recording management unit according to the service that prescribes the reproduction. Through this, it is possible to reduce the recording area of the program control table within the transmission wave, and the extraction of AIT during playback is unnecessary. In addition, the program control table also indicates whether or not each program data included in the same service that includes the program control table is used, in a period in which that service is prescribed as recording or reproduction; the extraction unit repeatedly extracts, in a fixed interval, the program control table maintained by a service in which recording is prescribed, and repeatedly extracts, in a fixed interval, program data indicated in the program control table extracted as indicated for use in a prescribed period as the reproduction of the service; and when the reproduction unit executes the program data according to the service prescribed as reproduction, the recording unit also extracts, from the recording area, the program data indicated in the program control table in which the time of Reproduction is within a period of validity of the table as well as indicated to be used in the prescribed period as a reproduction of the service. Through this, the recording area of the program can be efficiently reduced.

As described above, the reduction of the use of resources such as filter resources and the recording area, and an efficient accumulation reproduction, can be achieved by accumulating repeatedly sent data having synchronization information with the video / audio, without overlapping. ADDITIONAL INFORMATION ABOUT THE BACKGROUND OF THE INVENTION OF THIS APPLICATION The description of the Japanese Patent Application No. 2005-034785 filed on February 10, 2005, which includes description, figures and claims, and Provisional Application No. 60 / 651,231 filed. On February 10, 2005, which includes descriptions, figures and claims, are incorporated in this document by reference in its entirety. BRIEF DESCRIPTION OF THE FIGURES These and other objects, advantages and characteristics of the invention will become apparent from that of the following description thereof taken in conjunction with the appended figures which illustrate a specific embodiment of the invention. In the figures: Figure 1 is an explanatory diagram of conventional technology. Figure 2 is a configuration diagram of a transmission system according to the present invention. Figure 3 is an example of how to use a frequency band used in communications of a system on the side of transmission system and a terminal apparatus, in a cable communication system according to the present invention. Figure 4 is an example of how to use a frequency band that is used in communications between a system on the side of the terminal device transmission system, in a cable television system according to the present invention. Figure 5 is an example of how to use a frequency band that is used in communications between a system on the transmission system side and a terminal apparatus, in a cable communication system according to the present invention. Figure 6 is a configuration diagram of a TS package predefined by MPEG-2 specifications. Figure 7 is a schematic diagram of an MPEG-2 transport stream. Figure 8 is an example of division when a PES package predefined by MPEG-2 specifications is transmitted using a TS packet. Figure 9 is an example of division when an MPEG-2 section predefined by the MPEG-2 specifications is transmitted using a TS packet. Figure 10 is a configuration diagram of an MPEG-2 section predefined by MPEG-2 specifications.

Figure 11 is an example of using an MPEG-2 section predefined by MPEG-2 specifications. Figure 12 is an example of using a PMT predefined by MPEG-2 specifications. Figure 13 is an example of the use of a PAT predefined by the MPEG-2 specifications. Figure 14 is an example of the case when a PES package predefined by the MPEG-2 specifications is encrypted. Figure 15 is an example of the case in which an MPEG-2 section predefined by the MPEG-2 specifications is encrypted. Figure 16 is a determination sequence for encryption using EMM, ECM and the like; Figure 17 is an example of configuration of a hardware configuration of a transmission reception apparatus according to the present invention. Figure 18 is an example of a front panel of an input unit 1610 in a hardware configuration of a terminal apparatus 1200 according to the present invention. Figure 19 is an example of configuration of a hardware configuration of a transmission reception apparatus according to the present invention. Figure 20 is an example configuration of hardware of a transmission reception apparatus used by CableCARD in accordance with the present invention. Figure 21 is an example of device connection in a transmission reception apparatus according to the present invention. Fig. 22 is an example of a connection of devices in a transmission receiving apparatus according to the present invention. Figure 23 is a configuration diagram of a program configuration that is stored by the terminal apparatus 1600 in accordance with the present invention. Figures 24A and 24B are examples of an EPG executed by a terminal apparatus 1600 in accordance with the present invention. Figure 25 is an example of information stored by a secondary memory unit 1607 according to the present invention. Figure 26A, Figure 26B and Figure 26C are an example of information stored by a primary memory unit 1608 according to the present invention. Figure 27 is a schematic diagram showing an AIT content prescribed by the DVB-MHP standard according to the present invention. Figure 28 is a schematic diagram showing a file system sent in DSMCC format according to with the present invention. Fig. 29 is a block diagram showing a general hardware configuration of a digital transmission receiving device having service recording / playback functions. Figure 30 is a diagram indicating a hardware configuration in which an adapter is physically connected. Figure 31 is a diagram indicating a hardware configuration in which a POD is physically connected. Figure 32 shows a conceptual reproduction representing the sequence of physical connection, processing content and input / output data format of each device during service recording. Figure 33 shows a different conceptual reproduction representing the physical connection sequence, processing content and input / output data format of each device during service re-recording. Figure 34 shows a conceptual reproduction representing the sequence of physical connections, processing content and data input / output format of each device during the reproduction of services. Figure 35 shows a conceptual reproduction different that represents the sequence of physical connections, processing content and input / output data format of each device within the reproduction of services. Fig. 36 is a conceptual diagram corresponding to a hardware configuration in which an adapter is physically connected, as shown in Fig. 30. Fig. 37 is a diagram indicating an example of a configuration diagram of a program stored in a ROM and executed by a computer. Figure 38A is a configuration diagram of a storage management library. Figure 38B and Figure 38C are diagrams indicating examples of a storage location and data necessary for stored data managed by a data management unit of a storage management library. Fig. 39 is a diagram indicating an example of a television program table displayed visually in a visual presenter by a program display unit of an EPG. Fig. 40 is a diagram indicating an example of a television program table presented visually in a visual presenter by a unit of visual presentation of programs of an EPG. Figure 41 is a diagram indicating an example of a PMT. Figure 42 is a graph schematically showing an example of AIT information collected. Figure 43 is a diagram indicating an example of a file system encoded in a transport stream in DSMCC format. Figure 44 is a diagram indicating an example of a file system stored in a recording area during service recording. Figure 45 is a diagram indicating an example of a file system sent / acquired repeatedly during a service recording period. Fig. 46 is a flow chart indicating an example of recording processing of a file system by a data recording unit of a storage management library. Figure 47 is an example of a file system by version. Figure 48 is a diagram indicating an example of a file system stored in a primary memory secondary memory unit. Fig. 49 is a flow chart indicating an example of execution processing of Java ™ programs.

Figure 50 is a diagram showing an example in which AIT information and stored file system are mapped and stored in a recording area. Fig. 51 is a flow chart indicating an example of AIT information recording processing for a data recording unit in a storage management library. Figure 52 is an example that indicates AIT information by version. Figure 53 is a diagram indicating an example that shows AIT information that maintains a storage position in a file system of each version that has a timestamp by version. Fig. 54 is a flow chart indicating an example of a Java program execution processing. Fig. 55 is a diagram indicating an example of a file system stored in a recording area during recording service recording and Fig. 56 is a diagram indicating an example of a file system stored in a recording area during recording services. DETAILED DESCRIPTION OF THE INVENTION First embodiment The present invention assumes three types of operation form, which are a satellite system, a system of ground waves and a cable system, such as the target transmission system. The satellite system is a form in which a transmission signal is transmitted to a transmission receiving apparatus using a satellite; the terrestrial wave system is a form in which a transmission signal is transmitted to a transmission receiving terminal using a terrestrial wave signal transmission apparatus and the cable system is a form in which a transmission signal is transmitted to a transmission receiving apparatus using a cable distribution center. Since the present invention is not directly related to the differences between each transmission system, the present invention can nevertheless be applied to the transmission system. The mode of a transmission system according to the present invention is described with reference to the diagrams. Figure 2 is a block diagram showing the relationship between apparatuses constituting the transmission system, and is configured of a transmission station side system 101 and three terminal apparatuses, a terminal apparatus there, a terminal apparatus B112 and a terminal device C113. With respect to a coupling 121 between the side system of the transmission station and each terminal apparatus, there are both wired and wireless cases. For example, in the cable system, the system side of Transmission station and each terminal device are connected with cables. On the other hand, in terrestrial / satellite systems, there is no cable coupling in an outward direction (from the system on the side of the transmission station to each terminal apparatus) and the transmission signal is transmitted using radio waves. With respect to an entry address (from each terminal device to the side system of the transmission station), there is both a wired connection, using a telephone line, wired Internet and the like, as well as a wireless connection, using wireless communications. Each terminal apparatus sends information as user inputs to the transmission station side system. In the present embodiment, three terminal apparatuses are connected to a transmission station side system, but the present invention can be applied even with an arbitrary number of terminal apparatuses connected to the transmission station side system. The system of the transmission station 101 sends information such as video / audio / data for the transmission of data in a transmission signal to a plurality of terminal devices. The transmission signal is sent using an operational omission of the transmission system, a frequency within a frequency band set by the laws of a region / country in which the system transmission is operated and so on. An example of an omission of transmitting transmission signal in relation to a cable system is given. In the cable system shown in the present example, the frequency band used in the transmission of transmission signals is divided into the data content and transmission direction (input / output) and used. Figure 3 is a graph indicating an example of a division of the frequency band. The frequency band is broadly divided into two types: Out of Band (OOB) and In Band. 5MHz to 130MHz These are assigned as OOB, and are used primarily in the exchange of data between the transmission station side system 110 and the terminal apparatus there, the terminal apparatus B112 and the terminal apparatus C113. 130 MHz to 864 MHz They are allocated as in band, and they are mainly used in a transmission channel that includes video / audio. A type of QPSK modulation is used as OOB and a modulation type QAM64 or QAM256 is used in band. The modulation type technology is generally known and has little relevance to the present invention, and detailed descriptions are therefore omitted. Figure 4 is an example of a further detailed use of the OOB frequency band. 10.0MHz to 10.1MHz are used in the sending of system data on the side of the transmission station 101, and each of the terminal apparatus there, the terminal apparatus B112 and apparatus C113 receive the same system data from transmission station side 101. On the other hand, 10.0MHz to 10.1MHz are used in the sending of data from the terminal apparatus there to the transmission station side system 101; 10.1MHz to 10.1MHz are used in the sending of data from the terminal device Bll to the side system of transmission station 101 and 10.2MHz to 10.3MHz are used in the sending of data from the terminal device C113 to the side system of the transmission system 101. Through this, it is impossible to send unique data of each terminal apparatus there, B112 and C113 to the transmission station side system 101. FIG. 5 in an example of use of a band of frequency in band. 150MHz to 156MHz and 156MHz to 162MHz They are assigned to a TV channel and a TV2 channel respectively, and subsequently, the TV channels are assigned in 6MHz intervals. Radio channels are assigned in 1MHz units from 3-MHz and up. Each of these channels can be used as analog transmission or as a digital transmission. The digital transmission is sent in TS packet formats based on the MPEG-2 specifications, and it is also possible to send data for each type of data transmission and composition information of TV programs to configure EPG in addition to audio and video. The system on the transmission station side 101 uses these frequency bands to send a signal from suitable transmission to terminal devices, and therefore has a QPSK modulation unit, a QAM modulation unit so on. In addition, the system on the transmission station side 101 has a QPSK demodulator to receive data from the terminal devices. In addition, the system can be thought of as having several devices related to the modulation units and demodulation unit. However, the present invention relates mainly to terminal devices and therefore detailed descriptions are omitted. The terminal devices There, B112 and C113 receive and reproduce a transmission signal from the transmission station side system 101. In addition, each terminal apparatus sends unique data to the transmission side of the transmission system 101. The three terminal devices have the same configuration in the present modality. Note that the present example introduces the details of an example which relates to cable system operation, but it is also possible to apply the present invention to a satellite system, a land-based wave system and a different type of cable system as well. As mentioned before, there are both wired and wireless cases since a connection between the system and each terminal device in the satellite and terrestrial systems, and in addition, the frequency band, interval of frequencies, modulation system and system configuration and others differ depending on the type and operation of the transmission system. However, those that are not related to the present invention, and the present invention is applicable no matter how they are pre-established. The system on the transmission station side 101 modulates an MPEG-2 transport stream and transmits the current included in the transmission signal. A transmission receiving device receives the transmission signal, demodulates and reproduces the MPEG-2 transport current, and the current, extracts and uses the necessary information. To describe a function of the device and connection structure that exists in a digital transmission receiving apparatus, the structure of the MPEG-2 transport stream is first described in a simple manner. Figure 6 is a diagram showing the structure of a TS packet. A TS 500 package has a length of 188 bits and is composed of a header 501, an adaptation field 502 and a payload 503. The header 51 contains control information of the TS packet, has a length of 4 bits and has the structure shown in 504. In the header 501 there is a field indicated as "Package ID" (hereinafter, PID), and TS packet identification is carried out through the value of this PID. The data field at 502 contains additional information such as time information. The existence of the adaptation field 502 is not mandatory, and there are cases in which the adaptation field 502 does not exist. The payload 503 contains information transmitted by the TS packet, such as video, audio and data transmission data. Figure 7 is a schematic diagram of the transport stream MPEG-2. A TS 601 packet and a 603 packet contain a PID 100 in a header, and it contains information that refers to video 1 in a payload. A TS602 packet and a TS605 packet contain a PID 200 in a header, and hold information that refers to data 1 in a payload. A TS 604 package contains a PID 300 in a header and contains information that refers to an audio one in a payload. A transport stream MPEG2 600 is configured of sequential TS packets, such as packets TS 601 to 605. The TS packets contain various information, such as video, audio and data transmission data, in the payload. The transmission receiving apparatus receives the TS packets, and when extracting the information contained by each TS packet, reproduces video / audio, and uses data such as composition information of TV programs. At this time, TS packets that have identical PIDs contain identical types of information. Also in figure 7, the The TS 601 package and the TS 603 packet each transmit information that refers to video 1, and the TS 603 packet and the TS 605 packet each transmit information that refers to the data 1. Video and audio are represented by a format called a Pack of Packed Elementary Current (PES). The PES package includes video information and audio information of a certain period of time, and upon receipt of the PES packet, the transceiver system can send the video / audio information included in that PES packet on a display / speaker. The transmit station transmits the PES packets without pause, and therefore it is possible for the transceiver to continuously play the video / audio without pause. When the PES packet is actually transmitted, the PES packet is divided and stored in the payloads of a plurality of TS packets in case the PES packet is larger than the payload of a TS packet. Figure 8 shows an example of division when transmitting a PES packet. Since a PES 701 package is too large to be stored and transmitted in a payload of a single TS packet, the PES 701 packet is divided into a PES packet division at 702a, a PES B 702b packet division and a division of package PES C 702c, and it is transmitted by three packages TS 703 to 705 which have identical PIDs. Note that the PES package can, depending on the operations, transmit not only video / audio, but also legend data called subtitles. Information such as the composition information of TV programs and data transmission data are expressed using a format called MPEG-2 section. When the MPEG-2 section is actually transmitted, the MPEG-2 section is divided and stored in the payloads of a plurality of TS packets in case the MPEG-2 section has a size larger than the payload of a packet. TS. Figure 9 shows a division example when transmitting an MPEG-2 section. Since an MPEG-2 801 section is too large to be stored and transmitted in a payload of a single TS packet, the MPEG-2 801 section is divided into a section division A 802a, a section division B 802b and a section division C 802c, and it is transmitted by three TS 803 to 805 packets that have identical PIDs. Figure 10 expresses a structure of one of the MPEG-2 section. An MPEG-2 900 section is configured with a header 901 and a payload 902. The header 901 contains control information of the MPEG-2 section. That structure is expressed by a header structure 903. The payload 902 contains data transmitted by the MPEG-2 900 section. A table_id (table identifier) that exists in the header structure 903 that expresses the type of the MPEG-2 section, and a table_id_extension (table identifier extension) is an extension identifier used when distinguishing more between MPEG-2 sections with an equal table_id. The case where the TV program composition information is transmitted, as in Figure 11, can be given as an example of using the MPEG-2 section. In this example, as indicated in row 1004, the information necessary to demodulate the transmission signal is indicated in the MPEG-2 section having a table_id of 64 in the header structure 903, and this MPEG-2 section is transmitted also for a TS packet with a PID of 16 assigned. Among the lines of TS packets that exist in the transport stream MPEG-2, the lines of packets TS of extracted part, which are only those identified through identical PIDs, are called an elementary current (ES). For example, in Figure 8, the packages Ts 703 to 705, in which the PES 701 packet is divided and transmitted, are all identified with the PID of 100. It can be said that this is an ES that transmits the PES 701 packet In the same way, in Figure 9, the TS 803 to 805 packets, in which the MPEG-2 801 section is divided and transmitted, are all identified with the PID 200. It can be said that this is an ES that transmits the MPEG-2 801 section.

A concept called a program also exists in the MPEG-2 transport stream. The program is expressed as a collection of ESs, it is used in case someone wants to manage a plurality of ESs together. When the program is used, it is possible to manage video / audio, as well as accompanying data transmission data, all together. For example, in the case where video / audio to be played simultaneously are handled together, by accumulating ES that transmits a PES package that includes video and the ES that transmits a PES packet that includes audio, the transceiver device simultaneously reproduces the two ESs. To express the program, two tables, called a Program Map Table (PMT) and a Program Association Table (PAT) are used in MPEG-2. Detailed descriptions can be found in the specifications of ISO / IEC13818-1, "MPEG-2 Systems". The PMT and the PAT are described below in simple terms. The PMT is a table that includes only the number of programs in the MPEG-2 transport stream. The PMT is configured as an MPEG-2 section, and has a table_id of 2. The PMT contains a program number used to identify the program and additional program information, as well as information that refers to an ES that belongs to the program. An example of the PMT is given in the figure 12. 1100 It is a program number. The program number is assigned only to programs in the same transport stream, and is used to identify the PMT. The rows 1111 to 1114 express information referring to individual ESs. Column 1101 is a type of ES, in which "video", "audio", "data" and so on are prescribed. Column 1102 is the PIDs of the TS packets from which the ES is configured. Column 1103 is additional information that refers to the ES. For example, the ES shown in row 1111 is an ES that transmits an audio PES packet, and is configured from TS packets with a PID of 5011. The PAT is a table that exists in the MPEG-2 transport stream. The PET is configured as an MPEG-2 section, has a table_id of 0 and is transmitted by a TS packet with a PID of 0. The PAT contains a transport_stream_id (transport stream identifier) used to identify the transport stream MPEG- 2, and information that refers to all the PMTs that represent a program that exists in the MPEG-2 transport stream. an example of the PAT is given in figure 13. 1200 It is a transport_stream_id. The transport_stream_id is used to identify the MPEG-2 transport stream. The rows 1211 to 1213 express information that refers to the program. Column 1201 is the program number. The column 1202 is the PID of the TS packet sent by the PMT corresponding to the program. For example, the PMT of the program shown in row 1211 has a program number of 101, and the corresponding PMT is sent by the TS packet with a PID of 501. In the transmission reception system, in case a user give an instruction to play video / audio that belongs to a program, the reproduction of the prescribed video / audio is executed using the PAT and PMT. For example, with respect to the MPEG-2 transport stream that transmits the PAT in Figure 13 and the PMT in Figure 12, the following procedure is taken in case video / audio playback belonging to the program is executed. with a program number of 101. First, a transmitted PAT is acquired as an MPEG-2 section with a table_id of "0" of a TS packet with a PID of "0". The PAT searches for a program with program number "101", and row 1211 is obtained. From row 1211, the PID "501" of the TS packet that transmits the PMT of the program with a program number "101" is get Then, it is acquired from the TS packet with the PID of "501", the PMT transmitted as the MPEG-2 section with a table_id of "2". Row 1111, which is voice information ES, and row 1112, which is video information ES, are obtained from the PMT. From row 1111, a PID "5011" is obtained from the TS packet that constitutes an ES transmitted by a PES audio package. In addition, from row 1112, a PID "5012" of the TS packet constituting an ES transmitted by a video PES packet is obtained. Afterwards, the audio package IS is acquired from the TS package with a PID "5011" and the PES video package is acquired from the TS package with a PID of "5012". Through this, it is possible to isolate the PES packets of video / audio that will be reproduced, and the video / audio transmitted by these packets can be reproduced. The present invention relates to access control for encrypted information transmitted by an MPEG-2 transport stream. An encryption format for information included in the MPEG-2 transport stream is described here. General encryption refers to the reverse modification of data using an encryption algorithm, hiding the content of the original data. With encrypted data, it is possible to return to the original data using a cryptography removal algorithm. In transmission, encryption / cryptography removal algorithms that use a bit string called a "key" are used. The transmission station reversibly modifies the data that will be encrypted according to an encryption algorithm that uses an "encryption key" and transmits a "cryptography removal key" that corresponds to the "encryption key" along with the encrypted data. The transmission reception apparatus reconstitutes the encrypted data using the cryptography removal algorithm using the "cryptography removal key" and thus obtains the original data. The present invention has no relation to the encryption / cryptography removal algorithms themselves, and it is possible to apply the present invention no matter what type of algorithm is used. As mentioned above, the information transmitted in the MPEG-2 transport stream is in the PES packet or MPEG-2 section format, which is split and transmitted in TS packets. At this time, the encryption processing carried out at the transmission station is carried out in the TS package and MPEG-2 section units, and the encrypted PES packets and packaged MPEG-2 section are split and transmitted by the packets TS. For example, in case the access control for video / audio information is carried out, encryption processing is carried out in the PES packets that transmit the video / audio information. Figure 14 shows a state in which an encrypted PES packet is transmitted. A PES 1301 packet is encrypted, since it is too large to be stored and transmitted within a payload of a TS packet, the PES 1301 packet is divided into a packet division PES A 1302a, a packet division PES B 1302b and a division of PES package C1302c, and it is sent by three packages TS 1303 to 135 that have an identical PID. As a result, payload portions of the TS 1303a 1305 packets adopt the encrypted form. Figure 15 shows a state in which an encrypted MPEG-2 section is transmitted. An MPEG-2 1401 section is encrypted, and since it is too large to be stored and transmitted within a payload of a TS packet, the MPEG-2 section 1401 is divided into a section division A 1402a, a section division B 1402b and a division of section C 1402c, and is sent by three packets TS 1403 to 1405 having an identical PID. As a result, the payload portions of the TS packets 1403 to 1405 assume an encrypted form. The transmission reception apparatus performs cryptography removal using a device called a descrambler to be able to use the encrypted information. It is possible for a descrambler to execute cryptography removal for an ES. It is possible that the transmission reception apparatus knows whether the PES packet or MPEG-2 section included in the payload of the PES packets is encrypted or not, using a value set by a transport_scrambling_control (transport scrambling control) contained in a TS 504 packet header structure of the TS packets. The PES package or section MPEG-2 transmitted by the respective payloads are transmitted to the descrambler, and the removal of cryptography is executed, if they are encrypted. Two types of information are necessary for the transmission reception apparatus to execute the removal of cryptography: "Cryptography removal information, such as a cryptography removal key" and "contract information for each contracted person". In general, the first one is a format called Right Control Message (ECM), and the last one is a format called Right Management Message (EMM), which is included and transmitted in the MPEG-2 transport stream. The ECM transmits necessary keys for the removal of cryptography, which are established in the descrambler and the removal of cryptography is carried out. The EMM transmits the contract information for each contracted person, which is used to judge whether the removal of cryptography is allowed or not contractually for the information that will suffer the processing of removal of executed cryptography. Both are in the PES packet format or MPEG-2 section, and are transmissible, and the determination of which one is used as well as how to execute the transmission is carried out depending on the operating regulations. In order for the transmission receiving device to acquire the ECM and the EMM, the PID of the TS packet that transmits the ECM and EMM is required. To achieve this, a Conditional Access (CA) descriptor and a Conditional Access Table (CAT) are prescribed in the MPEG-2 specifications. The CA descriptor contains the PID of the TS packet that is transmitted by the ECM and the EMM. The CAT is a table that transmits the information that refers to the removal of cryptography, and is configured of an MPEG-2 section with a table_id of "1", and is sent by a TS packet with a PID of "1". The CAT contains the CA descriptor, and the TS packet identified by the PID contained by that described CA is transmitted by the EMM. In addition, the PMT may also contain the described CA, and the Ts package identified by the PID contained in the CA descriptor that exists in the PMT is transmitted by the ECM. The EMM sends the contract information, and it is information that refers to the transmission transmission device itself. In case the transmission reception apparatus receives the EMM, first, the CAT, which is the table_id "1", is acquired from the TS packet with a PID of "1", and the PID of the Ts package sent by the EMM is acquired from the CA descriptor registered in the CAT. The EMM is acquired from the TS package identified by that PID. The EMM is used when the transmission reception apparatus accesses encrypted information, to judge whether access is contractually permitted or not. The ECM transmits the key to execute removal of cryptography in the information that will be accessed, and it is information that depends on the program and the ES. In case the transmission receiving device has access to encrypted information, the ES that transmits the encrypted information using the PAT and PMT is specified. In the PMT recorded with the information that refers to ES, there is inevitably a CA descriptor registered accordingly. The TS packet identified by the PID registered in that CA descriptor transmits the ECM, and includes the key to remove the necessary cryptography to execute the removal of cryptography in the information transmitted by ES. The cryptography removal key registered in the ES is established in the descrambler and is used in the removal of cryptography. A sequence of operations that relates to the EMM and ECM during the cryptography removal processing is shown in Figure 16. First, the transmission reception apparatus acquires the PMT of a prescribed identifier, and isolates the ES for the removal of cryptography (S1501). This identifier usually prescribes the program or the ES, but what type of identifier to use is determined depending on the operation. The simplest example is the PID of the TS package that configures the program number, the ES, and so on. Then, the contract information is obtained from the EMM (S1502). If contractually possible or not Removing the cryptography from the information sent by the ES isolated in S1501 is judged from the obtained contract information (S1503). When it is possible to remove the cryptography, the ECM is acquired (S1504), the cryptography removal key registered in the ECM is established in the descrambler (S1505) and the cryptography removal begins (S1506). Note that the MPEG-2 specifications do not prescribe details or a mode of use for the ECM and EMM; The details and mode of use are determined by the operating regulations according to each environment. Specifically, in each environment, the following information is not regulated by the MPEG-2 specifications, and is determined based on operations: The form of the ECM and EMM (PES package or MPEG-2 section); the format of the ECM and EMM; the length and number of cryptography removal keys registered in the ECM; the restart interval time length of the cryptography removal keys; the content of the contract information registered in the EMM; the sending interval of the ECM and EMM; and so on. In each environment, the ECM and EMM transmit the information necessary for the removal of cryptography, so that the present invention of course refers to the removal of cryptography. However, the present invention refers to "timing to start the removal of cryptography" and "removal objectives of "cryptography", and refers to the preprocessing performed before the actual cryptography removal processing.The present invention has little relationship with the cryptography removal processing itself, but it is applicable in how the ECM and EMM are handled. 16 also refers to the initiation of cryptography removal in the present invention, but since the present invention has no relation to how FIG. 16 is achieved, the present invention is applicable notwithstanding the sequence of FIG. 16 that is actually achieved. So far, simple descriptions have been given that refer to the MPEG-2 specifications, and here, detailed definitions of the terms are given In the present invention, there are two types of the term "program." One is a " program "that appears in the MPEG-2 specifications, and the other is" a program "that refers to an assembly of codes executed by a CPU, since the first one is synonymous imo of the term "service" used in the operation regulations, from now on, to avoid confusion, the first is called "service" and the last one is simply called program. Moreover, with respect to the latter, a "program" particularly written in the Java ™ language is called a "Java program". A description has been given that refers to various types of information specified in the specifications MPEG-2 according to the present invention. Hereinafter, a hardware configuration prerequisite for the embodiments of the present invention is described. A block diagram showing a general hardware configuration of a digital transmission receiving apparatus is indicated in Figure 17. 1600 It is a terminal apparatus, which is configured of: a tuner 1601; a TS decoder (demultiplexer TS) 1602; an AV 1603 decoder; a loudspeaker 1604; a visual presenter 1605; a CPU 1606; a secondary memory unit 1607; a primary memory unit 1608; a ROM 1609 and an input unit 1610. The tuner 1601 is a device that demodulates a transmit signal modulated in the system on the transmitting station side 101 and transmitted, according to tuning information that includes a frequency prescribed by the CPU 1606. A transport stream MPEG-2, obtained after demodulation by tuner 1601, is sent to decoder TS 1602. The decoder TS 1602 is a device that has a function of segregating PES packets and MPEG-2 sections that comply with MPEG-2 transport stream regulation conditions, based on a PID instruction, a section filter condition and so on, prescribed by the CPU 1606. The PES packet segregated by the encoder TS 1602 is transferred to the AV decoder 1603. In addition, the MPEG-2 section segregated by the TS 1602 decoder is transferred to a direct memory access (DMA) of the primary memory unit 1608, and is used for the program that the CPU 1606 executes. In addition, within the decoder TS 1602, there is a descrambler, which carries out removal of cryptography in the PES package and encrypted MPEG-2 section. The AV 1603 decoder is a device with a function of decoding encoded video and audio. An audio signal and a video signal obtained from the decoding by the AV decoder 1603 are sent to the loudspeaker 1604 and the visual presenter 1605. Note that there are cases in which the AV decoder 1603 can not decode the video and audio simultaneously. The AV decoder 1603 can exist as a video decoder unit and an audio decoder unit. Note that there are cases in which the AV decoder 1603 has a decoding function for subtitle data. In addition, the AV 1603 decoder can not decode video / audio information transmitted by an encrypted PES packet. Because of this, in case the removal of cryptography for the PES packet is not carried out by the descrambler in the TS 1602 decoder, it is impossible for a user to see and listen to video / audio transmitted by that PES packet.

Loudspeaker 1604 and visual presenter 1605 are respective devices with functions for outputting audio and video sent from the AV decoder 1603. The CPU 1606 executes the program operated in the transmission reception apparatus. There are cases in which the program executed by the CPU 1606 is i) included in ROM 1609; ii) downloaded from a transmission signal, a network and the like and contained in the primary memory unit 1608; iii) downloaded from a transmission signal, a network and the like and contained in the secondary memory unit 1607; and so on. The tuner 1601, decoder TS 1602, decoder AV 1603, speaker 1604, visual presenter 1605, secondary memory unit 1607, primary memory unit 1608, ROM 1609 and input unit 1610 are controlled in accordance with the addresses of the executed program. The secondary memory unit 1607 is a non-volatile memory such as a FLASH-ROM, a rewritable medium such as a Hard Disk Drive (HDD), a CD-R, a DVD-R, and so on, and is configured to a device that does not erase information even when the power of the terminal apparatus 1600 is turned off. The secondary memory unit 1607 stores information that depends on instructions from the CPU 1606, and is used to store data whose deletion from the 1600 terminal device would be problematic when turned off.

The primary memory unit 1608 is configured of a RAM and so on, and is a device with a function for temporarily storing information according to the CPU 1606, a device accessible by DMA and so on. The information contained in the primary memory unit 1608 is erased when the power to the terminal apparatus is turned off. ROM 1609 is a rewritable memory device and, to be more specific, it is configured of a ROM, a CD-RM, a DVD, and so on. The program executed by the CPU 1606 is stored in the ROM 1609. The input unit 1610, to be more specific, is configured from a front panel or a remote control, and accepts user inputs. Figure 18 is an example of a case in which the input unit 1610 is configured from the front panel. A front panel 1700 has seven buttons: A cursor up button 1701, a cursor down button 1702, a left cursor button 1703, a right cursor button 1704, an OK button 1705, a cancel button 1706 and an EPG 1707 button When the user presses a button, an identifier of the button pressed is notified to the CPU 1606. Note that in figure 17, the visual presenter 1605 and the speaker 1604 are represented as being contained within the transmission receiving apparatus, but there is also a type in which the audio signal and video signal are sent to the outside, without the visual presenter 1605 and loudspeaker 1604 being contained in the transmission reception apparatus. The placement of the visual presenter 1605 and the loudspeaker 1604 has no relation to the present invention, which is however applicable of what type it is used. Further, in Figure 17, only one of each of the tuner 1601 and the AV decoder 1603 exist within the terminal apparatus 1600, but there is a hardware configuration in which there is a plurality of these devices, and the present invention is applicable even to in that case. In the hardware configuration shown in Figure 17, as an omission, each device is contained in the terminal apparatus when it is transported. However, there are cases in which an adapter for mounting a device to be added is attached to the terminal apparatus, to then add a device not mounted on the terminal apparatus, and to be able to improve the function of the devices mounted on the terminal apparatus . For example, in figure 17, the descrambler is, as an omission, contained in the decoder TS 1602 of the terminal apparatus 1604 being transported, but there is a hardware configuration in which an external adapter including a descrambler is physically connected, and he Descrambler on the external adapter is used to execute cryptography removal. An example of this hardware configuration is shown in Figure 19. 1800 It is a terminal apparatus, it is configured of: a tuner 1801; a TS 1802 decoder; an AV 1603 decoder; a loudspeaker 1604; a visual presenter 1605; a CPU 1806; a secondary memory 1207; a primary memory 1208; a ROM 1609; and an input unit 1610. Since the devices mounted on the terminal apparatus 1800 and identified by the same reference numbers as in figure 17 have the same functions as those shown in figure 17, their descriptions are omitted. An adapter 1811 is given to the terminal apparatus 1800. The adapter 1811 has a descrambler. An MPEG-2 transport stream is an input in the adapter shown in the hardware configuration example of FIG. 19. With respect to a TS packet included in the entered MPEG-2 transport stream, the adapter 1811 contains at least one descrambler that performs removal of cryptography in a PES packet or MPEG-2 section transmitted by the TS packet with a PID as prescribed by the CPU 1806. It is necessary that the MPEG-2 transport stream is modulated by the tuner 1801 to be input in the adapter 1811 to be able to make the descrambler contained by the destopter 1811 be operated. For the both, the tuner 1801 enters the transport stream MPEG-2 demodulated in the adapter 1811. After the removal of cryptography in the MPEG-2 section or PES packet transmitted by the TS packet prescribed by the CPU 1806 and within the current of input MPEG-2 transport, adapter 1811 sends the MPEG-2 transport stream to the TS 1802 decoder. It is possible that the TS 1802 decoder performs processing on the input MPEG-2 transport stream from the 1811 adapter, just as it is also It is possible for the TS 1602 decoder to perform processing on the input MPEG-2 transport stream of the tuner 1601, as shown in FIG. 17. The CPU 1806 is not simply a device that exists within the terminal apparatus 1800, but can also communicate with control devices inside the 1811 adapter. Note that in the hardware configuration shown in figure 19, the 1811 adapter has a descrambler, per or the present invention is applicable notwithstanding the number and type of devices contained by the adapter 1811. Further, in the hardware configuration shown in Figure 19, the adapter 1811 has a configuration in which the MPEG-2 transport stream is entered from the tuner 1801, and the transport stream MPEG-2 is sent to the decoder TS 1802. However, the present invention is applicable however from which part for the processing of a transmission signal the device mounted on the adapter 1811 has been inserted. For example, the present invention is applicable even when the adapter 1811 has an AV decoder and adopts a configuration in which a PES packet is input from the decoder TS 1802 and sends the audio and video signal to the visual presenter 1205 and the speaker 1204. In addition, PCMCIA is common as an interface between the terminal apparatus 1800 and the adapter 1811, but the present invention has no relationship to the format of that interface and is nevertheless applicable in spite of the interface. Further, and that the terminal apparatus 1800 does not depend on the number of physically connectable adapters at the same time, the present invention can be applied even when a plurality of adapters are physically connectable. Further, note that the adapter 1811 can be achieved in various ways, such as a device in the form of a removable card used when connected to a card connection terminal in the terminal apparatus 1800, a box-like device used when connecting to a connection terminal such as a USB terminal or a terminal of the Institute of Electrical and Electronics Engineers (IEEE) 1394, and so on; however, the present invention is applicable regardless of the device form of the adapter 1811, the method of connection to the terminal apparatus and so forth. Also, since the 1800 terminal does not depend of the number of physically connectable adapters at the same time, the present invention can be applied even when a plurality of adapters are physically connectable. In addition, the hardware configuration example of FIG. 19, the MPEG-2 transport stream is input directly to the adapter 1811 of the tuner 1801, but a hardware configuration in which the MPEG-2 transport stream sent from the tuner 1801 passes. through the TS 1802 decoder once and then it is entered into the 1811 adapter can also be considered. In such a case, the decoder TS 1802 has a function of interrupting the transport stream MPEG-2 to the adapter 1811, and uses this function to send the transport stream MPEG-2 entered from the tuner 1801 to the adapter 1811. In addition, one of each of tuner 1801 and AV decoder 1803 exists in the example of hardware configuration shown in figure 19, but there are cases of hardware configurations in which there are a plurality of these; The present invention is also applicable in such a case. A DVB-Common Interface (Cl) card used in Europe is given as a first example of an adapter. The DVB-CI specification is shown in "ETSIEN50221". Here, a simple description of the DVB-CI specification is given. The DVB-CI specification is an interface specification for giving an adapter to the terminal device, and connecting the device terminal and the adapter using an interface of the International Association of Personal Computer Memory Cards (PCMCIA). The DVB-CI card contains an internal descrambler, and is used in a configuration similar to the hardware configuration example of FIG. 19. In the hardware configuration example shown in FIG. 17, it is necessary for the terminal apparatus 1600 to execute the complete sequence of Figure 16, but with DVB-CI, a CPU mounted on the DVB-CI card executes the sequence of Figure 16. Since the CPU 1806 within the terminal apparatus 1800 sends a PMT (CA-PMT) registered in the ES information and the CA descriptor to the DVB-CI card in binary form, the DVB-CI performs EMM and ECM operations, and the removal of cryptography automatically begins. CA-PMT is described below. A CableCARD (formerly Point of Placement, or POD) used in the United States cable systems is given as a second example of an adapter. The CableCARD specification is shown in a "OC-SP-CC-IF" specification. Here is a simple description of the CableCARD. Both the CableCARD and the DVB-CI are in a similar card form, and are connected to the terminal using the PCMCIA interface. Figure 20 shows a hardware configuration in which a CableCARD 1911 is given to the terminal apparatus. In relation to devices that exist within a terminal apparatus 1900, the devices identified by the same numbers of figure 17 or figure 19 have the same functions as in figure 17 and figure 19. The CableCARD 1911 has a descrambler mounted and, in the same way as the adapter 1811 in Figure 18 is inputted with an MPEG-2 transport stream from a tuner 1901, and sends the transport stream MPEG-2 with removal of full cryptography to a TS 1902 decoder. Also, in the United States cable system, Various information is transmitted in directions of input and output using frequency bands called OOB, as shown in Figure 3 and Figure 4. At this time, because the format of the information that the system on the side of the transmission station If the terminal device differs from the information format readable by the terminal device 1900, the transfer of information is impossible as such. The 1911 CableCARD includes a device that performs format conversion into input and output information transmitted by these OOBs. The information transmitted by the OOB is modulated in the QPSK modulation method. Since this method of modulation is a generally known technology, detailed descriptions are omitted. The terminal apparatus includes a QPSK demodulator 1912 and a QPSK modulator 1913. A CPU 1906 is not simply a device within the terminal apparatus 1900, but can control a device within the CableCARD 1911. With respect to receiving address information from the terminal apparatus 1900, first, the QPSK demodulator 1912 demodulates an input signal sent from the system on the side of the transmission station 101 in the OOB , and enters the bitstream generated in the 1911 CableCARD. The 1911 CableCARD extracts information prescribed by the CPU 1906 from the different information included in the bitstream, converts the information into a format readable by a program operated on the CPU 1906 and first presents the information to the CPU 1906. With respect to sending the output address information of the terminal apparatus 1900, first, the CPU 1906 sends, to the CableCARD 1911, information that will be sent to the system on the side of the transmission station 101. The 1911 CableCARD converts the information entered from the CPU 1906 to be readable by the system on the side of the transmitting station 101, and sends the training to the QPSK 1913 modulator. The QPSK modulator 1913 modulates the information entered from the CableCARD 1911 by QPSK, and sends the information to the system on the side of the transmission station 101. Note that the CableCARD 1911 and DVB-CI have both CPUs, and the CPU inside the CableCARD 1911 executes the sequence in figure 16. Through the terminal device 1900 that sends a PMT (CA-PMT), registered with a CA descriptor, in binary form to the CableCARD 1911, the CableCARD 1911 carries out operations that refer to EMM and ECM, and automatically initiates the removal of cryptography. CA-PMT is described below. In addition, in an environment in which the 1911 CableCARD is used, there are cases in which the EMMs and ECMs are transmitted in band, as well as cases in which the EMMs and ECMs are transmitted by OOB, but the method of acquisition of the EMM and ECM has no relationship with the present invention, which is applicable however the EMM and ECM are transmitted. In addition, FIG. 20 shows, in the same manner as FIG. 19, a configuration in which the MPEG-2 transport stream is input directly to the CableCARD 1911 of the tuner 1901, but a configuration in which the MPEG transport stream -2 is entered into the 1911 CableCARD after passing through the TS 1902 decoder once it is also applicable. In such a case, the TS 1902 decoder has a function of interrupting the MPEG-2 transport stream entered from the tuner 1901 of the CableCARD 1911. In addition, the terminal apparatus contains only one of each device, such as a tuner, an AV decoder, and so on, but since the present invention does not depend on the number of each device, the present invention is applicable even when there is a plurality of each device. Nevertheless, in case there is a plurality of tuners, and the MPEG-2 transport streams received by the respective tuners have cryptographies removed using the descrambler in the CableCARD 1911, it is necessary that the CableCARD 1911 has a configuration that allows a plurality of streams of MPEG-2 transport are entered. Moreover, it is necessary that the terminal apparatus 1900 have a function of inputting a plurality of MPEG-2 transport streams into the CableCARD 1911, and of receiving a plurality of MPEG-2 transport streams from the CableCard 1911. Herein is given a simple description with respect to the difference in cryptography removal processing between the case in which there is a descrambler within the terminal apparatus 1600 and the case in which the descrambler exists within an external adapter. In the hardware configuration shown in Figure 17, the descrambler exists within the terminal apparatus 1600. In order to carry out cryptography removal, it is necessary to assign a cryptography removal key and a PID to the descrambler. Therefore, in this hardware configuration, the terminal 1600 itself acquires the ECM, and also acquires the ECM cryptography removal key, and adjusts those values in the descrambler.

In the hardware configuration shown in Figure 19, the descrambler exists outside the terminal apparatus 1800. As mentioned above, DVB-CI and CableCARD are representative examples of this. In case the descrambler exists outside the terminal apparatus 1800, as in the external adapter 1811, it is necessary for the terminal apparatus 1800 to pass ES information to start and stop the removal of cryptography to the external adapter 1811. For this purpose, a message called CA-PMT in the case of DVB-CI and CableCARD. The CA-PMT adopts the same structure as the PMT, and contains ES information. The CA-PMT deletes "information other than information that refers to removal of cryptography" from the PMT, and is also provided with a cryptography removal control connector that shows whether the removal of cryptography is initiated or stopped. The DVB-CI and CableCARD initiate the removal of ES cryptography registered in the CA-PMT after receiving the CA-PMT with a "start" cryptography removal control apparatus of the 1800 terminal apparatus. The DVB-CI and CableCARD not only do they contain the descrambler internally, but they also contain a CPU, a ROM registered with a cryptography removal program, a primary memory and a device to acquire the EMM / ECM. Operations such as the acquisition of the EMM and the ECM, contract judgment based on the EMM information, a descrambler adjustment to Based on the cryptography removal key registered in the ECM and a PID descrambler setting, they are executed by programs in the DVB-CI and the CableCARD. In addition, the DVB-CI and CableCARD stop the cryptography removal of the ES registered in the CA-PMT after receiving the CA-PMT with a "stop" cryptography removal control apparatus of the 1800 terminal apparatus. In addition, the DVB -CI and CableCARD judge whether the removal of cryptography from the ES registered in the CA-PMT is possible or not, and notify the terminal apparatus 1800 of the outcome of the trial, after receiving the CA-PMT with a cryptography removal control device "ask" from terminal apparatus 1800. When configuring a CA-PMT and setting that CA-PMT on the DVB-CI and CableCARD, it is possible for terminal device 1800 to notify instructions to start / stop the removal of cryptography on the DVB- CI and CableCARD, and information that refers to the ES, and it is therefore possible to carry out cryptography removal control. In addition, depending on the DVB-CI and CableCARD, when a CA-PMT with a "start" cryptography removal control apparatus is received from the 1800 terminal apparatus and a different cryptography removal is already running, there are instances in the that the removal of cryptography is initiated based on the received CA-PMT. Using each device shown in FIGS. 17 to 20, the transmission reception apparatus achieves a function of sending video / audio transmitted in the transmission signal on a screen, and a data extraction function that includes composition information of TV programs included in the transmission signal and presenting that data to a user. In Figure 21, a conceptual production representing a physical connection sequence, contained in the processing and input / output data format, is shown. 2000 is a terminal apparatus, which has: a tuner 2001; a 2002 PID filter; a section filter 2003; a 2004 descrambler; an AV decoder 2005; a visual presenter / speaker 2006; and a primary memory unit 2007. The devices that appear in figure 21 correspond, one by one or one to many, to the devices shown in figure 17. The tuner 2001 corresponds to the tuner 1601, and enter a transmission signal and send an MPEG-2 transport stream. Three types of devices that perform processing in the MPEG-2 transport stream exist within the TS 1602 decoder: the 2002 PID filter, the 2003 section filter and the descrambler 2004. The functions of these are described in detail here. The 2002 PID filter extracts the TS packet contained by the PID prescribed by the CPU 1606 of the transport stream MPEG-2, and also extracts a PES packet and section MPEG-2 that exist in the payload of the TS package. The case in which the PES package is extracted in the situation shown in Figure 8 can be given as an example. First, the 1606 CPU sets a PID 100 in the PID filter, and sends a request for the PES packet that will be extracted. Then, the PID filter extracts, from among the TS packets flowing in the MPEG-2 transport stream, the TS 703 to 705 packets, which have a PID of 100, and removes, in addition, the payloads of the TS packets 703 to 705 extracted, the PES A 702a packet division, the PES B 702b packet division and the PES C 702c packet division, and build the PES 701. One or more of the 2002 PID filter exists in the TS 1602 decoder. The 2004 descrambler performs the removal of cryptography in the PES packet and MPEG-2 section sent by the 2002 PID filter. The PES packet and MPEG-2 section are, as in Figure 8 and Figure 9, divided and transmitted even when They are encrypted. The 2004 descrambler can, through the PID instruction of the CPU 1606, isolate the TS packet that transmits the PES packet and encrypted MPEG-2 section, and then can perform cryptography removal processing using a cryptography removal key prescribed by the CPU 1606. The 2004 descrambler sends the processed PES packet for removal of cryptography to the AV 2005 decoder, and the MPEG-2 section processed for cryptography removal to the 2003 section filter, respectively. The removal of cryptography is a processing applied only in PES packets and encrypted MPEG-2 sections, and the 2004 descrambler is entered with and performs cryptography removal processing in the PES packet and the MPEG-2 section of the PID filter only in necessary cases, as instructed by the CPU 1606. The PES packets and MPEG-2 sections that are not scrambled are respectively sent directly from the PID filter to the AV 2005 decoder and the 2003 section filter. One or more descramblers exist within the TS decoder 1602. The section filter 2003 extracts, from the entered MPEG-2 sections, the MPEG-2 section that conforms to the section filter conditions prescribed by the CPU 1606, and transfers the MPEG-2 section to the primary memory unit 2007. The MPEG-2 section contained in the primary memory unit 2007 is read by the CPU 1606 and used. The case in which an MPEG-2 section containing tuning information is acquired in Figure 11 can be given as an example. The CPU 1606 first sets a PID 16 in the PID filter 2002, and issues a request to acquire a section. The 2002 PID filter extracts the section of the TS packet with the PID 16, and presents the section to the 2003 section filter. Next, the CPU 1606 requests the 2003 section filter to extract a section with a table_id of 64. The section filter 2003 extracts, from the MPEG-2 sections entered by the 2002 PID filter, the section with a table_id of 64 and transfers that section to the primary memory unit by DMA. One or more of the 2003 section filter exists within the decoder TS 1602. The AV decoder 2005 corresponds to the AV decoder 1603, and enters the PES packet, sends the audio signal to the visual presenter 1605 and sends the video signal to the visual presenter / speaker 2006. The visual presenter / speaker 2006 corresponds to the visual presenter 1605 and loudspeaker 1604, and sends video in the visual presenter 1605 with the video signal as the input, and outputs audio to the loudspeaker 1604 with the audio signal as the input. The primary memory unit 2007 corresponds to the primary memory unit 1608 and, with the MPEG-2 section as the input, makes it possible to verify the content of the program executed by the CPU 1606. An example of the process of sending the video and audio the display and loudspeaker respectively are shown using the expressions of Figure 21. The transmission signal input to the transmission receiving apparatus is first demodulated in an MPEG-2 transport stream by the tuner 2001. Next, the TS packet with a PID prescribed by the CPU 1606 is transmitted and the information of The video and audio contained in the PES packet is extracted by the 2002 PID filter. If necessary, the PES packet is sent to the 2004 descrambler, where cryptography removal processing is executed. After that, the PES packet is input to the AV decoder 2005, and the audio signal and decoded video signal are sent. After that, the audio signal and video signal are input to the visual presenter and speaker 2006, it is possible to carry out the video and audio playback. An example of the process of extracting data such as the composition information of TV programs from the transmission signal is shown using the expressions of Figure 21. The transmission signal input to the transmission reception apparatus is first demodulated in a current of MPEG-2 transport by tuner 2001. Then, the TS packet with a PID prescribed by the CPU 1606 is transmitted and the MPEG-2 section containing the data is extracted by the 2002 PID filter. If necessary, the MPEG-2 section 2 is sent to the 2004 descrambler, where cryptography removal processing is executed. Moreover, the MPEG-2 section is entered into the 2003 section filter, and only the MPEG-2 section that conforms to the section filter conditions prescribed by the CPU 1606 is issued. After that, the MPEG-2 section is entered into the primary memory unit 2007 and presented to the CPU 1606.

Note that in Figure 21, as in Figure 17, the transmission reception apparatus is conceptually described as having a visual presenter / speaker 2006, but there is also a type of visual presenter / speaker 2006 that exists externally instead of being contained in the transmission reception apparatus. The present invention is applicable notwithstanding which of these types is used. In addition, in the conceptual elaboration shown in Figure 21, the descrambler 2004 exists in the decoder TS 1602, but the decoder TS can exist externally, depending on the hardware configuration. The present invention is applicable in such a case as well. Next a conceptual reproduction, which corresponds to the hardware configuration shown in figure 19 in which the adapter is physically connected, is shown in figure 22. 2100 It is a terminal apparatus, which includes a tuner 2101, a filter PID 2102, a section filter 2003, an AV decoder 2005; a visual presenter / speaker 2006 and a primary memory unit 2007. In addition, there is an adapter 1811, just like a descrambler 2104. The devices identified by the same numbers as in figure 21 have the same functions as in figure 21, and therefore their descriptions are omitted. The connection location and function of the descrambler are what differ from the terminal of the Figure 21. In Figure 21, the descrambler exists within the TS decoder, and using the cryptography removal key prescribed by the CPU 1606, performs removal of cryptography in the PES packet and the MPEG-2 section emitted by the filter PID 2002. On the other hand, in figure 22, the descrambler 2104 is connected to the tuner 2101, and is input with a transport stream MPEG-2 demodulated by the tuner 2101. The descrambler 2104 extracts the TS packet with a prescribed PID by CPU 1806 extracts, in turn, a key necessary for the removal of cryptography from the transport stream MPEG-2, and carries out the removal of cryptography. The transport stream MPEG-2 in which the descrambler 2104 carried out cryptography removal processing is input to the TS decoder, and subsequently, the processing flows in the same manner as in figure 20. It is possible that the PID filter 2102 extract the TS packet and configure the PES packet and MPEG-2 section from the MPEG-2 transport stream entered from the descrambler 2104. Since the hardware configuration in which the CableCARD exists, as shown in Figure 20, it is the same as the processing of the signal transmitted in band, as shown in figure 22, its descriptions are omitted. So far, descriptions have been given regarding examples of hardware configuration of the present invention, but hereinafter, descriptions are given which refer to processes of operation of programs in the terminal apparatus. Figure 23 is an example of a configuration diagram of a program registered in ROM 1609 and executed by CPU 1606. A program 2200 is configured of a plurality of subprograms; more specifically, it is configured of an OS 2201, an EPG 2202, a Java VM 2003, a service manager 2204 and a Java library 2205. The OS 2201 is a subprogram that the CPU 1606 starts when the power is turned on to the terminal 1600 The OS of OS 2201 is the abbreviation for "operating system"; Examples are Linux, Windows ™ and others. OS 2201 is a generic and commonly known technology configured from a core 2201a and a library 2201b that concurrently execute other programs, and therefore, detailed descriptions are omitted. In the present embodiment, the core 2201a of the OS 2201 executes the EPG 2202 and the Java VM 2203 as subprograms. In addition, the library 2201b provides these subprograms with a plurality of functions for controlling a structural element contained in the terminal apparatus 1600. A tuning function can be introduced as an example of these functions. The tuning function accepts tuning information, including a frequency, of other subprograms, and transfer that information to the tuner 1601. The tuner 1601 performs demodulation processing based on the tuning information supplied, and can provide the demodulated MPEG-2 transport stream to the TS 1602 decoder. As a result, other programs can control the tuner 1601 through the library 2201c. The EPG 2202 is configured from a visual presentation unit of TV programs 2202a, which visually presents a list of TV programs to a user and accepts user income, and a reproduction unit 2202b, which performs channel selection Here, EPG means Electronic Program Guide. The EPG 2202 is initiated by the core 2201a when the power to the terminal apparatus is turned on; within the initiated EPG 2202, the TV program display unit 2202a waits for user input through the input unit 1610 of the terminal apparatus 1600. Here, in case the input unit is configured from the front panel shown In Figure 18, when the user presses an EPG button 1707 of the input unit 1610, an identifier of the EPG button is notified to the CPU 1606. The TV program display unit 2202a of the EPG 2202, which is a subprogram operated by the CPU 1606, accepts this identifier, and visually presents information of TV programs in the visual presenter 1605. Figure 24A and Figure 24A and Figure 24B are examples of TV program graphs displayed visually in the visual presenter 1605. Referring to Figure 24A , TV program information is presented visually in a grid in visual presenter 1605. Time information is presented visually in column 2301. A channel name "channel 1" and a TV program displayed during a period of time that corresponds to the time in column 2301 is presented visually in column 2302. "Channel 1" shows that a TV show "News 9" is passed from 9:00 to 10:30, and "Film AAA" is past 10 : 30 to 12:00. In the same way that column 2302, "Channel 2" and a TV program passed during a period of time corresponding to the time in column 2301 is presented visually in column 2303. A TV program "BBB Movie" is shown from 9:00 a.m. to 11:00 p.m., and "News 11" is passed from 11:00 a.m. to 12:00 p.m. 2330 is a cursor. The cursor 2330 moves when the left cursor 1703 and the right cursor 1704 on the front panel 1700 are depressed. In the state shown in Fig. 24A, the cursor 2330 moves to the right when the right cursor 1704 is depressed, and the diagram is as shown in Fig. 24B. In addition, in the state shown in Figure 24B, the cursor 2330 moves to the left when the cursor Left 1703 is pressed, and the diagram is as shown in Figure 24A. In the state shown in Fig. 24A, when the OK button 1705 of the front panel 1700 is depressed, the TV program display unit 2202a notifies the playback unit 2202b of a channel identifier for "channel 1". In the state shown in Figure 24B, when the OK button 1705 of the front panel 1700 is depressed, the TV program display unit 2202a notifies the playback unit 2202b of a channel identifier for "channel 2". Here, the channel identifier is an identifier that uniquely identifies a channel, and generally shows a service. A relationship between the channel identifier and the service is mentioned below. In addition, the TV program display unit 2202a periodically stores, from the system on the side of the transmission station 101 to the primary memory unit 1608 or the secondary memory unit 1607, the information of the TV programs that will be presented visually. . Generally, it takes time to acquire the TV program information from the broadcast station side system. When the EPG button 1707 of the input unit 1610 is pressed, the TV program information pre-stored in the primary memory unit 1608 or a secondary memory unit 1607 is presented visually, and therefore it is possible to visually display the TV program graphics quickly. The reproduction unit 2202b uses the accepted channel identifier and reproduces the channel. The relationship between the channel identifier and the channel is pre-stored in the secondary memory unit as channel information. Fig. 25 is an example of a channel information stored in the secondary memory unit 1607. The channel information is stored in tabular format. Column 2401 is the channel identifier. Column 2402 is the channel name. Column 2403 is tuning information. Here, the tuning information includes frequency, transmission rate, coding rate and so on, and is a value given to the tuner 1601. Column 2404 is a program number. Each of the rows 2411 to 2414 is a group that includes the channel identifier, channel name and respective tuning information. The row 2411 is a group that includes a channel identifier "1", a channel name "channel 1", a frequency of "150 MHz" as the tuning information, and a program number from "101". To carry out channel reproduction, the reproduction unit 2202b provides the channel identifier accepted as such to a service administrator.

Further, when the user presses the up cursor 1701 and the down cursor 1702 of the front panel 1700 during playback, the playback unit 2202b accepts, from the input unit 1610 and by means of the CPU 1606, a notification that the cursor It was oppressed, and it changes the channel that is being played. First, the reproduction unit 2202b stores the channel identifier of the channel that is currently being reproduced in the primary memory unit 1608. Figures 16 to 22 are examples of channel identifiers stored in the primary memory. In Figure 26A, a channel identifier "3" is stored, and with reference to Figure 25, this indicates that the channel with a channel name of "TV 3" is being reproduced. In the state shown in Fig. 26A, the playback unit 2202b refers to the channel information in Figs. 24A and 24B when the user presses the cursor up 1701, and to change to "channel 2", which is the channel prior to the channel that is currently being presented visually, it provides a channel identifier "2" for the channel with the name "channel 2" to the service administrator. At the same time, the channel identifier stored in the primary memory unit 1608 is rewritten as "2". Figure 26B shows the state in which the channel identifier has been rewritten. In addition, in the state shown in Figure 26A, the reproduction unit 2202b refers to the channel information in Figure 25 when the user presses the down cursor 1702, and to change to "TV Japan", which is the channel after the channel that is currently being presented visually, provides a channel identifier "4" for the channel with the name "TV Japan" to the service administrator. At the same time, the channel identifier stored in the primary memory unit 1608 is rewritten as "4". Figure 25 shows the state in which the channel identifier has been rewritten. The Java 2203 VM is a Java virtual machine that sequentially analyzes and executes programs written in the Java ™ language. Programs written in the Java language are compiled from intermediate code that does not depend on hardware, called byte code. The Java virtual machine is an interpreter that executes this byte code. In addition, some Java virtual machines translate byte codes into an executable format understandable by the 1606 CPU, pass the code to the CPU and execute a program. The Java VM 2203 is identified as the Java program to be run by the 2201a kernel, and is started. In the present embodiment, the core 2201a prescribes a service manager 2204 as the Java program to be executed. The details of the Java language are explained in many publications, such as "Java Language Specification" (ISBN 0-201-63451-1).

Here, those details are omitted. In addition, the detailed operations of the Java VM itself are explained in many publications, such as "Specification of Java Virtual Machine" (ISBN 0-201-63451-X). Here, those details are omitted. The service administrator 2204 is a program Java written in the Java language, and is sequentially executed by the Java VM 1603. The service administrator 2204 calls, or is able to call other programs not written in the Java language through a native Java interface (JNI). JNI is described in many publications, such as "Native Java Interface". Here, those details are omitted. The service manager 2204 accepts the channel identifier from the reproduction unit 2202b through the JNI. The service administrator 2204 supplies a 2205c tuner initially in a Java library 2205 with the channel identifier, and requests tuning. The tuner 2205c refers to the channel identifier stored in the secondary memory unit 1607 and obtains tuning information. At that time, when the service manager 2204 supplies the tuner 2205c with the channel identifier "1" the tuner 2205c refers to the row 2212 of figure 25 and obtains the corresponding tuning information "150 MHz". The tuner 2205c supplies the tuning information to the tuner 1601 through the library 2201b of the OS 2201. The tuner 1601 demodulates the signal sent from the transmission station side system according to the supplied tuning information, and passes the signal to the TS 1602 decoder. Service administrator 2204 requests a CA 2206 library to perform cryptography removal. The CA 2206 library provides the necessary information for the removal of cryptography to the descrambler 2004 within the decoder TS 1602, through the library 2201b of the OS 2201. Then, the service administrator 2204 provides the channel identifier to a JMF 2205a within the Java 2205 library, and request the video / audio playback. First, the JMF 2205a acquires, from the PAT and PMT, the PID to isolate the video and audio that will be reproduced. When acquiring the JMF 2205a the PAT, the JMF 2205a prescribes the PID 20"and the CPU 1606 to the decoder TS 1602, through the library 2201b of the OS 2201. The decoder TS 1602 carries out filtering with the PID" 0"and the table_id "0", and when this is passed to the CPU 1606 by means of the primary memory unit 1608, the JMF 2205a connects the PAT.Here, figure 13 is given as an example of the PAT. the channel identifier provided to the JMF 2205a is "1", the JMF 2205a refers to row 2412 of Figure 25, acquires the corresponding program number "101", and then refers to row 1211 of the PAT in Figure 13 and acquires the PID "501" corresponding to the number of program "101". When acquiring the JMF 2205a the PMT, the JMF 2205a prescribes the PID and table_id "2" acquired from the PAT in the decoder TS 1602, through the library 2201b of OS 2201. Here, the prescribed PID is "501". The decoder TS 1602 performs filtering with the PID "501" and the table_id "2", and upon passing this to the CPU 1606 by means of the primary memory unit 1608, the JMF 2205a connects the PMT. Here, figure 12 is given as an example of the PMT. The JMF 2205a acquires, from the PMT, the PID of the video and audio that will be reproduced. Referring to Figure 12, the JMF 2205a acquires a PID "5011" of audio from row 1111 and a PID "5012" of video from row 1112. Then, JMF 2205a supplies the decoder TS 1602 with the PID of the video / acquired audio and the AV 1603 decoder as an output destination, through the library 2201b of OS 2201. The TS 1602 decoder performs filtering based on the PID provided. Here, TS packets with a PID of "5011" and "5012" are passed to the AV 1603 decoder. The AV 1603 decoder performs encoding of the provided PES packet and reproduces video / audio through the 1605 visual presenter and loudspeaker 1604 .

Finally, the service manager 2204 provides a channel identifier to an AM 2205b in the Java library 2205, and requests the reproduction of data transmission. Here, data transmission playback refers to extracting a Java program included in the MPEG-2 transport stream and causing the Java 2203 VM to run the program. A format called DSMCC, which is noted in the MPEG ISO / IEC 13818-6 specifications, is used as the method to insert the Java program into the MPEG-2 transport stream. Here, detailed descriptions of DSMCC are omitted. The DSMCC format conforms to a method in which a file system configured of files and directories used by a computer uses an MPEG-2 section to encode, in the TS packet of the MPEG-2 transport stream. In addition, the information of the executed Java program is in a format called AIT, it is inserted inside the TS package of the MPEG-2 transport stream, and it is sent as an MPEG-2 section with a table_id of "0x74". AIT is defined in chapter 10 of the DVB-MHP specifications (officially, ETSITS 101812 DVB-MHP VI.0.2 specifications), and is the abbreviation of Application Information Table. First, when acquiring the AM 2205b the AIT, the AM 2205b acquires the PAT and PMT identical to the JMF 2205a, and acquires the PID of the TS package in which it is stored.

AIT. At this time, the channel identifier provided is "1", and when the PAT of Figure 13 and the PMT of Figure 12 are sent, the PMT of Figure 12 is acquired with the same procedure as JMF 2205a. The AM 2205b extracts a PID from the elementary current that has "AIT" as complementary information and "data" as a current type of the PMT. Referring to Figure 12, the elementary stream of row 1113 is applicable, and PID "5013" is acquired. The AM 2205b supplies the TS 1602 decoder with the PID of the AIT and the table_id "0x74", through the library 2201b of the OS 2201. The decoder TS 1602 carries out filtering with the supplied PID and table_id, and passes this to the CPU 1606 through the primary memory unit 1608. As a result, the AM 2205b can connect the AIT. Figure 27 is a graph schematically showing an example of connected AIT information. Column 2601 is a Java program identifier. Column 2602 is control information for the Java program. In the control information, there is "auto start", "present" and "delete"; "auto-start" means that the terminal device executes the Java program automatically in an instant, "present" that does not carry out an automatic execution and "delete" means that it stops the Java program. Column 2603 is a DSMCC identifier for extracting the PID included in the Java program in the DSMCC format. The spine 2604 is the name of the Java program program. The rows 2611 and 2612 are groups of the Java program information. The Java program defined in row 2611 is a group that includes a Java program identifier "301", "autostart" control information, a DSMCC identifier "1" and a "a / TopXlet" program number. The Java program defined in row 2612 is a group that includes a Java program identifier "302", "present" control information, a DSMCC identifier "1" and a "a / GameXlet" program number. Here, the two Java programs have the same DSMCC identifier. This indicates that two Java programs are included in a file system encoded in the DSMCC format. Here, only four types of information are specified for the Java program, but in reality, more information is defined. Details can be found in the DVB-MHP specifications. The AM 2205b finds the Java program with "auto start" from the AIT, and extract the corresponding DSMCC identifier and Java program name. Referring to Figure 27, the AM 2205b extracts the Java program in row 2611, and acquires the DSMCC identifier "1" and the Java program name "a / TopXlet". Next, the AM 2205b uses the DSMCC identifier acquired from the AIT, and acquires, from the PMT, the PID of the TS package of the Java program stored in DSMCC format.

Specifically, the type of current within the PMT is "data", and the PID of the elementary stream that conforms to the DSMCC identifier of the complementary information is acquired. At this time, the DSMCC identifier is "1", and when the PMT is like Figure 12, the elementary stream in row 1114 is in conformation, and the PID "5014" is recovered. The AM 2205b prescribes the section filter conditions, and the PID of the TS packet that sends the MPEG-2 section inserted with data in the DSMCC format to the TS 1602 decoder, through the 2201b library of OS 2201. Here, the PID "5014" is supplied. The TS 1602 decoder uses the supplied PID and performs filtering in the same DSMCC MPEG-2 section, and passes the section to the CPU 1606 through the primary memory unit 1608. As a result, the AM 2205b can connect the section DSMCC MPEG-2 required. The AM 2205b reconstitutes the file system from the MPEG-2 section connected in accordance with the DSMCC format, and stores the file system in the primary memory unit. Take data such as the file system of the TS packet within the MPEG-2 transport stream and store the data in a memory unit such as the primary memory unit 1608 and the secondary memory unit 1607 is hereinafter referred to as download.

Figure 28 is an example of a downloaded file system. In the diagram, a circle represents a directory and a square represents a file. 2701 is a root directory, 2702 is the "a" directory, 2703 is the "b" directory, 2704 is a "TopXlet. Class" file, and 2705 is a "GameXlet. Class" file. Then, from among the file systems downloaded to the primary memory unit 1608, the AM 2205b passes the Java program that will be executed to the Java VM 2203. At this time, when the Java program to be executed has the name of "a / TopXlet ", the file that must be executed is the file" a / TopXlet. Class "which has" .class "added to the end of the Java program name. "/" is a division of directory name and file and with reference to figure 28, file 2704 is the Java program that must be executed. Then, the AM 2205b passes the file 2704 to the Java VM 2203. Note that the means to refer to the Java program that must be executed by the AM 2205b are not only those that depend on the AIT. In OCAP, which is assumed to be used by the US cable system, an XAIT, which has registered reference information of an application in the OOB indicated in Figure 4, is used. In addition, methods such as starting a program pre-recorded in ROM 1609, start a program downloaded and recorded in the secondary memory unit 1607 and so on can be considered. Note that the Java program not only downloads something sent by the MPEG-2 transport stream in the DSMCC format. Methods such as downloading a server connected to the terminal apparatus by a network, downloading portable means such as a DVD, BD, DS card and so on can be considered, and the present invention is applicable in these cases as well. The Java VM 2203 runs the supplied Java program. With a process such as that described above, the service administrator 2204 accepts the channel identifier and executes tuning, cryptography removal, video / audio playback and Java program start. This sequence of processes is collectively called "service selection". It can be said that the video / audio reproduced through the selection of services belongs to that service. In a similar way, it can be said that the Java program initiated through the selection of services belongs to that service. After accepting a different channel identifier, the service manager 2204 stops, through each library contained in the Java ™ 2205 library, the video / audio that is being reproduced through the same respective libraries included in the Java 2205 library and stop the executed Java program; then, based on the newly accepted channel identifier, it carries out video / audio playback and execution of Java ™ programs. In general terms, the channel identifier represents a service. In the present embodiment, the channel information, such as that shown in FIG. 25, is used when the program number of the channel identifier is requested. A method that uses service information (SI) is representative of a method of solving the program number of a channel identifier. The SI is composition information of TV programs used by the EPG and so on; SI is specified depending on each environment transmitted, and transmitted. A representative example is the use of DVB-SI as specified by EN400-368 in the European transmission environment. In addition, the SI specified by ANSI / SCTE65 is used in the United States cable broadcast environment. In these Sis, a certain type of identifier to isolate a service is already specified, and a mechanism to resolve the program number of that identifier is already considered. The channel identifier uses the identifier specified by this IS. In that case, the transmitting receiver uses the SI, and carries out the resolution of the program number used to acquire the PMT of the channel identifier. In that case, since the present invention does not depend on the state of the SI, the present invention is applicable regardless of what type of IS is used. The channel identifier in Figure 25 is also acquired using the SI. The Java library 2205 is a collection of a plurality of Java libraries stored in ROM 1609. In the present embodiment, the Java 2205 library includes the JMF 2205a, the AM 2205b, the tuner 2205c, a DSM-CC2205d, a section filter (SF) 2205e and a service administrator administration library 2205f. The Java program implements the function of the Java program while using these libraries. In addition, it is possible for the Java program to perform service selection through the service manager using the service administrator administration library 2205f. Specifically, when the Java program passes the channel identifier to the service manager administration library 2205f, the service management library passes the accepted channel identifier to the service manager 2204. After this, in the same manner as during the selection of channels using EPG 2202, a selection of services is carried out by the service administrator 2204, and based on the information indicated in the PMT identified by the program number corresponding to the channel identifier, the video / audio belonging to that service is reproduced, and the Java program belonging to that service is started. In this way, the Java program can carry out service selection using the service administrator administration library 2205 contained in the Java library. The selection of services by the service administrator 2204 has been described so far; in other words, the operation of carrying out tuning, cryptography removal, video / audio playback and Java program start, according to the accepted channel identifier. Next, a service recording / reproduction function is described, which is the main function of the present invention. Here, service registration refers to storing the video / audio included in the service and the Java program included in the service in a recording area of an HDD, BD, DVD, or a semiconductor memory such as an SD. The reproduction of the service refers to playing the video / audio, and start the Java program included in a service that is already stored in the recording area. Note that here the recording area can be a Separate terminal connected through certain type of method, such as a TCP / IP connection, a USB connection, an IEEE1394 connection, an infrared connection and so on. Hereinafter, as indicated in Figure 37, a recorder manager 3606 which has a function to record a service, is entered. Also, the service administrator 2204 is also given a function to reproduce the service. Figure 29 is a block diagram showing a general hardware configuration of a digital transmission receiving device having a service recording / playback function. In Fig. 29, the devices in a terminal apparatus 2800 that are identified with the same numbers as in Fig. 17 have the same function as in Fig. 17, and therefore their descriptions are omitted. The terminal apparatus 2800 includes an AV encoder 2811 and a multiplexer (such as a TS multiplexer) 2812. The AV decoder 1603 is a device with a function of decoding encoded video and audio. The audio signal and video signal obtained through the decoding carried out by the AV decoder 1603 is sent to the loudspeaker 1604 and the visual presenter 1605 during the service selection and service reproduction, but it is sent to the AV 2811 encoder during the recording of services. The AV 2811 encoder is a device with a function of encoding the audio signal and video signal decoded by the AV decoder 1603 during service recording. The AV 2811 encoder sends the video and audio obtained after encoding to the 2812 multiplexer. Here, a format for the audio signal and video signal encoded by the AV encoder is generally in the case of the audio signal, audio format MPEG-2 by an MPEG-2 audio encoder, and, in the case of the video signal, MPEG-2 video format by an MPEG-2 video encoder, but different formats are also acceptable. The multiplexer 2812 is a device with a video and audio multiplexing function, sent from the AV encoder during the recording of services, in the transport stream MPEG-2. Note that the format of the stream multiplexed by the multiplexer 2812 is not limited to the MPEG-2 transport stream, and may be a different format. The CPU 1606 included in the terminal apparatus 2800 further controls the AV encoder 1811 and the multiplexer 1812 in accordance with an instruction of the executed program. Note that the present invention is applicable even if the CPU 1606 itself included in the terminal apparatus 2800 is a system that performs all the processes of decoding TS, AV decoding, AV coding and multiplexing; or, even if the 1606 CPU itself included in the terminal apparatus 2800 is a system that performs a combination of those processes. Note that the hardware configuration shown in Figure 29, each device is contained within the terminal apparatus at the time of transportation as an omission. However, as shown in Figure 30 and Figure 31, which are similar to Figure 19 and Figure 20, it is also acceptable to add an adapter that includes the service that you wish to add to the terminal apparatus, in order to add a device not included in the terminal apparatus and to improve the function of devices included in the terminal apparatus. In figure 30 and figure 31, the devices identified with the same numbers as in figure 29, figure 19 and figure 20 have the same functions as in figure 29, figure 19 and figure 20 and therefore their descriptions are omitted . Using each device that appears in the figure 29, FIG. 19 and FIG. 20, the transmission reception implements a function for sending video / audio transmitted in a transmission signal to a screen, a function for extracting data such as the constitution information of TV programs included in the signal of transmission and present it to the user, and also, implements a function to extract and store in a recording area the video / audio transmitted in the transmission signal and each type of data in the transmitted signal, a function of sending the video / audio and each type of data stored in the recording area to the screen, and so on. Next, the recording processing of the service by a recording manager 3603 is described in a digital transmission reception device that includes the recording / playback function for the service, as shown in FIG. 9. FIG. 32 and FIG. 33 indicate conceptual diagrams that represent a physical connection order and a data format of processing and input / output content that occur during the recording of services. In Figure 32 and Figure 33, the devices identified by the same numbers as in Figure 21 have the same functions as in Figure 21 and therefore their descriptions are omitted. In Figure 32, a terminal apparatus 3100 has an AV 3111 encoder, a multiplexer 3112 and a recording area 3113. The AV 3111 encoder corresponds to the AV 2811 encoder, and inputs an audio signal and a video signal, and sends a PES package of video / audio.

Multiplexer 3112 corresponds to multiplexer 2812, and inputs a PES packet of the video / audio and section data, and sends a recording MPEG-2 transport stream. The recording area 3113 corresponds to all or part of the secondary memory area 1607, and enters and stores the recording transport stream MPEG-2. In Fig. 33, the terminal apparatus 3100 has the AV 3111 encoder, the multiplexer 3112 and the recording area 3113. The AV 3111 encoder corresponds to the AV 2811 encoder, and inputs an audio signal and a video signal, and sends a PES package of video / audio. Multiplexer 3112 corresponds to multiplexer 2812, and inputs the PES packet of the video / audio and section data, and sends a recording transport stream MPEG-2. The recording area 3113 corresponds to all or part of the secondary memory area 1607, and enters and stores the recording transport stream MPEG-2. Next, a conceptual reproduction corresponding to the hardware configuration in which an adapter is physically connected, as shown in Figure 30, is indicated in Figure 35. In Figure 36, the devices identified by the same numbers as in the Figure 22 and Figure 30 have the same functions as in Figure 22 and Figure 30, and therefore their descriptions are omitted. Here, descriptions of a program operation process in the terminal apparatus 3100 that occurs during the recording of services, as indicated in Figure 32, are omitted. In the terminal apparatus indicated in Figure 32, during the recording of services, section data such as video / audio included in the service, a Java program included in the service and so on, are all stored in the recording area 1331 as a recording MPEG-2 transport stream sent by the multiplexer. Next, a program operation process is described in terminal apparatus 3200 that occurs during the recording of services, as indicated in figure 33. Figure 37 is an example of a configuration diagram of a program stored in ROM 1609 and executed by the CPU 1606. In Figure 37, the configuration elements identified by the same numbers as in Figure 23 have the same function as Figure 23, and therefore their descriptions are omitted. A 3600 program includes an EPG 3602, a Java library 3605 and a recording manager 3606. The EPG 3602 includes a 3602c image recording unit, and the Java 3605 library includes a recording administrator administration library 3605g and a 3605h storage management library. In addition, the storage administration library 3605h includes a data recording unit 3701, a data management unit 3702 and a data extraction unit 3703, as shown in FIG. 38A. The data recording unit 3701 of the storage management library 3605h has a function of adding necessary information, such as a timestamp, to data such as video / audio and a file system acquired from the transport stream, and storing the prescribed data in the recording area 3113. The data management unit 3702 of the storage management library 3605h manages a storage location and data necessary for data stored in the recording area 3113. The data extraction unit 3703 of the storage administration library 3605h has a function of extracting data stored in the recording area 3113 according to an instruction from the DSMCC identifier and so on. Figures 38B and 38C are examples of the storage location and data needed, by data stored and managed by the data management unit 3702 of the storage administration library 3605h.

Figure 38B is an example of the storage location and necessary data of the file system stored and managed by the data management unit 3702 of the storage administration library 3605h, in case the storage administration library records, administrates and extract the file system. In Figure 38B, rows 3721 through 3723 indicate each version of each file system stored in recording area 3113. Column 3711 is a file system name stored in recording area 3113; column 3712 is the file system version; column 3713 is a timestamp by file system version; column 3714 is the channel identifier related to the file system; column 3715 is the DSMCC identifier of the file system and column 3716 is the storage location in the recording area 3113 per file system version. Figure 38C is an example of a storage location and data necessary for a recording stream stored and managed by the data management unit 3702 of the storage administration library 3605h in the event that the recording current generated when the library of video / audio multiplexing storage management is recorded, managed and extracted. Figure 38C, rows 3741 through 3742 indicate each recording current stored in recording area 3113. Column 3731 is a name of the recording current stored in recording area 3113; column 3732 is the channel identifier related to the recording current and column 3733 is the storage location of the recording current in recording area 3113. The details of a recording method, method of administration, acquisition method and necessary data such as a timestamp for each data by the storage administration library 3605h are described below. An EPG 3602 adds to the configuration of the EPG 2202 an image recording unit 3602c which executes the recording of images (recording services) of a prescribed channel according to a user input that is accepted by the visual presenter unit of the user. TV programs. Fig. 39 and Fig. 40 are examples of a graph of TV programs presented visually in the visual presenter 1605 by the TV program display unit 2202a of the EPG 3602, which is a subprogram operated by the CPU 1606, when the user presses the EPG button 1707 of the input unit 1610. Because the EPG 3602 has a channel selection function and a channel image recording function, the 2202a TV program display unit provides, for example, a selected image recording selection mode and selection mode, and FIGS. 39 and 40 are screens displaying the image recording mode. In Figure 39 and Figure 40, the configurations with the same numbers as in Figures 24A and 24B have the same functions as in Figures 24A and 24B, and therefore their descriptions are omitted. In the state shown in Figure 39, when the OK button 1705 on the front panel 1700 is pressed, the TV program display unit 2202a notifies the image recording unit 3602c of the channel identifier "channel 1". In the state shown in Fig. 40, when the OK button 1705 of the front panel 1700 is depressed, the TV program display unit 2202a notifies the image recording unit 3602c of the channel identifier "channel 2". Here, in the device for receiving digital transmissions that has the function of recording / reproducing services, the channel identifier is an identifier that only isolates a service from the services sent from the transmission station and the services stored in the service area. Recording 3113. The image recording unit 3602c uses the accepted channel identifier to record images of the channel. The relationship between the channel identifier and the channel is as described above with reference to the figure 25. The image recording unit 3602c passes the channel identifier accepted as such to the recording manager 3606 to carry out the recording of images in the channel. The Java VM 2203 prescribes the recording manager 3606 as the Java program that will be executed during the recording of services (recording of channel images). The recording manager 3606 is a Java program written in the Java language, and is executed sequentially by the Java VM 1603. The recording administrator 3606 can call, or be called by, another subprogram that is not written in the Java language, through of the native Java interface (JNI). The recording manager 3606 accepts the channel identifier from the image recording unit 3602c through the JNI. The recording manager 3606 first passes the channel identifier to the tuner 2205c which is in the Java 2205 library, and requests tuning. Here, a processing of the tuner 2205c in case the tuning of the recording manager 3606 is requested during the recording of services is the same as the processing in case the tuning of the service manager 2204 is requested during the selection of services. Therefore, the descriptions are omitted. Then, the 3606 recording administrator requests the CA 2206 library to perform cryptography removal. Here, a processing of the CA 2206 library in case the removal of cryptography is requested from the recording administrator 3606 during the recording of services is the same as the processing in the event that the removal of the service administrator 2204 cryptography is requested. during the selection of services. Therefore, the descriptions are omitted. Note that the CA 2206 library, which has been requested by the recording administrator 3606 to carry out cryptography removal, can use a method, such as applying cryptography in an original format, after the removal of cryptography. Note that in the case of the removal of cryptography during the reproduction of services, the recording administrator 3603 does not execute the removal of cryptography during the recording of services, and does not request the CA 2206 library to execute the removal of cryptography. Note that the present invention is applicable regardless of whether the recording administrator 3606 requests the CA 2206 library or not to carry out the removal of cryptography. Then, the recording manager 3606 supplies the channel ID to the JMF 2205a that is in the Java 3605 library, and request video / audio recording. First, the JMF 2205a acquires, from the PAT and the PMT, the PID to isolate the video and audio that will be recorded. Here, in order to acquire the PAT, the JMF 2205a prescribes the CPU 1606 and the PID "0" to the decoder TS 1602, through the library 2201b of the OS 2201. The decoder TS carries out filtering with the PID "0" and the table_id "0", and upon passing these to the CPU 1606 by means of the primary memory unit 1608, the JMF 2205a acquires the PAT. Here, figure 13 can be given as an example of the PAT. At this time, when the channel identifier supplied to the JMF 2205a is "1", the JMF 2205a refers to the row 2412 of Figure 25, acquires the corresponding program number "101", and then refers to the row 1211 of the PAT in Figure 13 and acquire the PID "501" that corresponds to the program number "101". In order to acquire the PMT, the JMF 2205a prescribes the PID acquired from the PAT and the table_id "2" to the decoder TS 1602, through the library 2201b of OS 2201. Here, the prescribed PID is "501". The TS decoder performs filtering with the PID "501" and the table_id "2", and upon passing these to the CPU 1606 through the primary memory unit 1608, the JMF 2205a collects the PMT. Here, figure 41 can be given as an example of the PMT. Here, in the figure 41, the configuration elements identical to those of figure 12 have the same numbers and their descriptions are omitted. In Figure 41, the ES shown in row 1115 is an ES that transmits a data section, which has a PID of 5015, and has appended information configured from a TS packet with a DSMCC [2] (the DSMCC identifier is 2) . The JMF 2205a acquires, from the PMT, the PID of the video and audio that will be recorded. Referring to Figure 41, the JMF 2205a acquires an audio PID "5011" from row 1111 and a video PID "5012" from row 1112. Then, JMF 2205a supplies, as the output destination of the PIDs of acquired video / audio, the AV 1603 decoder to the TS 1602 decoder through the library 2201b of OS 2201. The TS 1602 decoder performs filtering based on the supplied PID. Here, the PES packets of the "5011" and "5012" PIDs are passed to the AV 1603 decoder. The AV 1603 decoder performs decoding on the supplied audio / video PES packets, passes the decoded audio signal and video signal to the AV 3111 encoder. The AV 3111 encoder encodes the audio signal and video signal in a PES packet, and passes the PES packet of the encoded audio / video to the multiplexer 3112. The multiplexer multiplexes the PES packet of the audio / video, and stores the MPEG-2 recording transport stream generated in recording area 3113. Note that here, the present invention is applicable even when the following is true: i) the storage management library 3605h includes a function to assign a relationship between the MPEG-2 recording transport stream and the channel identifier and store the current of transport in the recording area 3113; ii) the JMF 2205a passes the channel identifier prescribed by the recording manager 3606 and the recording transport stream MPEG-2 generated when multiplexed by the multiplexer 3112 to the data recording unit 3701 of the storage management library 3605h, and upon requesting storage of the recording transport stream MPEG-2 in recording area 3113, it stores the recording transport stream MPEG-2 in recording 3113 in 3113. In addition, here, the MPEG-2 recording transport multiplexed by the multiplexer 3112 not only includes video / audio, but also includes a table of information PAT / PMT / AIT, and so on, necessary during the reproduction of services. Note that the present invention is applicable even when the AIT information table and so forth is not multiplexed in the recording transport stream MPEG-2, and instead is stored separately from the recording transport stream MPEG-2 in the recording area 3113.

Finally, the recording manager 3606 supplies the channel identifier to the data recording unit 3701 of the storage administration library 3605h which is inside the Java library 3605, and requests storage of the data transmission. Here, storage of the data transmission refers to extracting the Java program included in the MPEG-2 transport stream and storing the program in the recording area 3113. As described above, the format called DSMCC, as indicated in the MPEG ISO / IEC 13818-6 specification, is used as a method to insert the Java program into the MPEG-2 transport stream. Here, detailed descriptions of DSMCC are omitted. The DSMCC format provides a method for encoding a file system configured from a file or directory used by a computer and within the TS packet of the MPEG-2 transport stream, using the MPEG-2 section. In particular, the DSMCC format adopts a carousel-shaped data format that repeatedly sends the coded data at regular intervals. In addition, as previously mentioned, the Java program information that will be executed is in a format called AIT, and is inserted into a TS packet of the MPEG-2 transport stream, and sent as an MPEG-2 section with a table. id of "0x74". AIT is the abbreviation of Application Information Table, and is defined in chapter 10 of the DVB-MHP standards (officially, ETSITS 101812 DVB-MHP specifications VI.0.2). First, to acquire the AIT, the data recording unit 3701 of the storage management library 3605h acquires the PAT and PMT, in the same way as the JMF 2205a, and acquires the PID of the TS packet that has the AIT stored. At this time, the supplied channel identifier is "1", the PAT in Figure 13 and PMT in Figure 41 are sent, and the data recording unit 3701 acquires the PMT of Figure 41 with a process identical to the JMF 2205a. The data recording unit 3701 of the storage administration library 3605h extracts the PID from the elementary stream having "AIT" as supplementary information and a "data" of current type of the PMT. Referring to Figure 41, the elementary stream in row 1113 is in compliance, and the PID "5013" is acquired. The data recording unit 3701 of the storage management library 3605h supplies the PIT of the AIT and the table_ide 20x74"to the TS decoder, through the library 2201b of the OS 2201. The decoder TS 1602 performs filtering with the PID and table_id supplied, and passes them to the 1606 CPU through the primary memory unit 1608. As As a result, the storage administration library 3605h can collect the AIT. Figure 42 is a graph that shows, schematically, an example of information of the collected AIT. In Figure 42, the configuration elements that are the same as in Figure 27 have the same numbers and therefore their descriptions are omitted. The rows 4111 to 4114 are a group of information of the Java program. The Java program defined in row 4111 is a group that includes a Java program identifier "301", "autostart" control information, a DSMCC identifier "1" and a program name "a / TopXlet". The Java program defined in row 4112 is a group that includes a Java program identifier "302", "present" control information, a DSMCC identifier "1" and a program name "b / GameXlet". The Java program defined in row 411s is a group that includes a Java program identifier "303", control information "delete", a DSMCC identifier "2" and a program name "z / StudyXlet". The Java program defined in row 4114 is a group that includes a Java program identifier "304", "destroy" control information, a DSMCC identifier "1" and a program name "b / MusicXlet". Then, the data recording unit 3701 of the storage administration library 3605h finds all the Java programs indicated in the AIT, and extract the corresponding DSMCC identifiers and Java program names. Referring to Fig. 42, the storage administration library 3605h extracts the Java program from row 4111, the Java program from row 4111, the Java program from row 4113 and the Java program from row 4114, and acquires the DSMCC identifier "1" and the Java program "a / TopXlet", the identifier DSMCC "1" and the Java program "b / GameXlet", the identifier DSMCC "2" and the Java program "z / StudyXlet" and the identifier DSMCC "1" and the Java program "b / MusicXlet". Then, the data recording unit 3701 of the storage administration library 3605h uses the DSMCC identifiers acquired from the AIT and acquires, from the PMT, the PID of the TS packet stored in the DSMCC format. Specifically, the PID of the elementary stream with a DSMCC identifier that conforms to the complementary information and which has a type of "data" stream between the PMTs is acquired. At this time, when the DSMCC identifiers are "1" and "2" and the PMT is as in Figure 41, the elementary streams of row 1114 and row 1115 coincide, and the PID "5014" and the PID "5015"they are extracted. The data recording unit 3701 of the storage administration library 3605h prescribes, to the decoder TS 1602, the PID of the TS packet and a section filter condition transmitted by the MPEG-2 section in which data in the DSMCC format has been inserted, through the library 2201b of the OS 2201. Here, a table_id = 0x3B is supplied as the PID "5014" and "5015" and the section filter condition. The TS 1602 decoder performs filtering in the DSMCC section of MPEG-2 using the supplied PID, and passes the section to the CPU 1606 through the primary memory unit 1608. As a result, the data recording unit 3701 of the 3605h storage management library can collect the necessary DSMCC MPEG-2 section. The data recording unit 3701 of the storage administration library 3605h reconstitutes the file system from the MPEG-2 section collected according to the DSMCC format, and stores the file system in the recording area 3113. The detailed description of the file system recording by the 3605h storage administration library is given below. Figure 43 is an example of a file system encoded in a transport stream in the DSMCC format. In addition, Figure 44 is an example of a file system stored in recording area 3113 during service recording, and here, two reconstituted file systems are stored. In figure 43 and figure 44, a circle represents a directory and a square represents a file. 4301 and 4311 are root directories of the respective file systems, 4302 is an "a" directory, 4303 is the "b" directory, 4312 is a "z" directory, 4304 is a "TopXlet. Class" file, 4305 is a file "GameXlet. class", 4306 is a file "MusicXlet .class" and 4305 a file "StudyXlet. class". Here, the service recording has a start time and an end time, and henceforth the time from the start time to the end time is called a "service recording period". Here, since the file system encoded in the DSMCC format is repeatedly sent at a fixed interval, an identical file system is duplicated and sent during the service recording period. Thus, the DSMCC section of MPEG-2, which is collected after the storage administration library 3605h during service recording, prescribes the PID and section filter condition to the TS 1602 decoder and causes the selection to be collected repeatedly during the service recording period, and the reconfigured file systems in the DSMCC format are acquired repeatedly according to that. Figure 45 is a diagram indicating an example of a file system that is sent / purchased overlay during the service recording period.

The file system sent and purchased repeatedly may, during the recording of services, be always duplicated and sent / acquired without change in content, or the content may be changed any number of times during the recording of services. For example, as shown in Figure 45, there is a case in which a file system sent repeatedly at intervals of 5 seconds during a service recording period of one hour carries out a content change (VersionUP) 10 minutes after the start of the recording. Here, the data content in a file system is called a Version of that file system, and a change in the data content of a file system is called a VersionUP of that file system. In addition, here, an identical version means that the data content this time of the file system sent repeatedly is not different from the content of the previous time. A new version means that the data content this time from the file system sent repeatedly is different from the content of the previous time. Note that in the present invention the file system data has a version, and the VersionUP confirmation (change in data content) of the file system data sent repeatedly is assumed as judging that the VersionUP has taken place when the values of version differ when being compared. However, the present invention is also applicable even when a different method is used, as long as that method can detect a change of content in the file system's own data. As indicated above, during the period of service recording, as a file system is repeatedly sent / acquired, storing file systems with identical versions in recording area 3113 is wasting for recording area 3113. In addition, on the other hand side, during the service recording period, there is a case in which a file system VersionUPs, and to be able to carry out the VersionUP during the reproduction of services, it is necessary to store the file system with the new version in the area 3113. FIG. 46 is a flow chart indicating an exemplary file system write processing by the data writer unit 3701 of the storage administration library 3605h, which has been requested to store the transmission of data when the channel identifier is supplied by the recording manager, during the recording of services. Accordingly, with reference to the flow chart of Figure 46, the data recording unit 3701 of the storage management library 3605h is supplied with the channel identifier from the recording manager during the service recording period, and is asked to store the data transmission (S-4501). After that, the acquisition through the filtering of the AIT, and the acquisition of the file system through the filtering of the MPEG-2 section of DSMCC and reconstitution of the file system, is continued in the order mentioned previously ( S-4502 to S-4506, and S-4510). Then, the version of the file system sent repeatedly is reviewed, and in case it is an identical file system, the newly acquired file system stores the file system with the version acquired later in the recording area 3113 (if S-4507). Note that in case a file system with the same version is already stored during a previous service recording despite the fact that the file system is recently acquired, the version of the file system acquired afterwards does not have to be stored . In case the version of the acquired file system currently matches the previously acquired file system version, the currently acquired file system is not stored in the recording area 3113 (Not S-4507). On the other hand, in case the version of the file system acquired at present differs from the file system version previously acquired (if the version is new) (if from S-4507), the file system with the new version, currently purchased, is stored in the recording area 3113. However, the files included in the file system with the new version that do not have changes of files in the file system of the previous version are not recently acquired, and those files in the file system with the previous version have a reference such as a symbolic link (S-4508). Note that another method for managing files without changes between the file system with the new version and the file system with the previous version is acceptable, as long as it is a method that does not redundantly record those files. In addition, it is also acceptable to assign a version only to the files that have been changed and store that version, instead of storing the file system with the new version as a file system unit. In addition, each version of the file system that will be stored is also given a time stamp that indicates a period from the time when that version of the file system is acquired for the first time (start time) until the moment in which it is stored. that the following file system VersionUP-ed is recently acquired (end time) and stored (S-4509). Here, a criterion for moment that divides the timestamp is the moment that divides the MPEG-2 transport stream from Recording created when video / audio, specified according to the prescribed channel identifier, is multiplexed. Note that another time division can be used as the criteria for the time that divides the timestamp, as long as it is a time division method that allows synchronized reproduction, in the same way as when i) the Java program included in the service specified by the prescribed channel identifier during service playback and ii) the video / audio multiplexed in the MPEG-2 recording transport stream that is included in the service specified by the same prescribed channel identifier, be synchronized and sent during the recording of services. Figure 47 is an example indicating the file system by version, to each version being assigned to it, by the data recording unit 370 of the storage administration library 3605h, related information such as a timestamp and recorded in the recording area 3113; the file system being managed by the data management unit 3702 of the storage administration library 3605h. In Figure 47, the configuration elements that are the same as those in Figure 37 are assigned the same numbers, and they omit their descriptions. The file system with a file system name of "FS-A" and a Version "1", as indicated in row 3721, has a timestamp of "0: 00-0: 10", and the location storage is 4601 within recording area 3113. The file system with a file system name of "FS-A" and a Version "2", as indicated in row 3722, has a timestamp of "0: 10-0: 25", and the storage location is 4602 within the recording area 3113. In addition, the file system with a file system name of" FS-B and a Version "1", as indicated in the row 3723, has a timestamp of "0: 00-1: 00", and the storage location is 4603 within the recording area 3113. With the above process, the 3606 recording administration accepts the channel identifier and carries out tuning, cryptography removal, video / audio recording and recording of Java programs.This series of processes is collectively called "g service rabación. " A service recording processing is basically the same as the service selection processing. However, the video / audio playback and execution of the Java program that occurs in the service selection processing is not carried out; instead, the service recording processing is a processing that carries out the video / audio storage and the Java program in recording area 3113. The following describes a service reproduction processing by the service manager, which occurs in the digital transmission reception device that includes a service recording / playback function as indicated in figure 29 Fig. 34 and Fig. 35 indicate conceptual diagrams representing a physical connection order and a data format of processing and input / output content occurring during the reproduction of services. In Figure 34 and Figure 35, the devices identified by the same numbers as in Figure 21 have the same functions as in Figure 21, and therefore their descriptions are omitted. In FIG. 34, a terminal apparatus 3300 has a recording area 3113. The recording area 3113 corresponds to all or part of the secondary memory unit 1607, and, in the terminal apparatus having device connections as shown in FIG. Figure 32, sends the recording transport stream MPEG-2 that is stored during service recording. In Figure 35, a terminal apparatus 3400 has recording area 3113. Recording area 3113 corresponds to all or part of the secondary memory unit 1607, and, in the terminal apparatus having device connections as shown in Fig. 33, it sends the recording transport stream MPEG-2 which is stored during the recording of services and the data recorded by the storage management library 3605h. Here, descriptions of a program operation process, in the terminal apparatus 3300 as shown in Fig. 34 during the reproduction of services, are omitted. In the terminal apparatus shown in Figure 34, during service playback, the TS decoder inputs the MPEG-2 recording transport stream stored in the recording area 3113, and outputs the section data, such as video / audio included. in the service and the Java program included in the service. Following are descriptions of a program operation process, in the terminal apparatus 3400 as shown in FIG. 35, during the reproduction of services. Referring to FIG. 37, the TV program display unit 2202a of the EPG 3602 visually displays, in the visual presenter 1605, a graphic of TV programs that includes both the service sent from the transmission station and the service stored in the recording area 3113. Here, in the digital transmission reception device that includes a function of recording / reproducing services, the channel identifier is an identifier that uniquely specifies a service of i) the service sent from the transmission station and ii) the service stored in the recording area 3113. The Java 2203 VM is prescribed by the Java program executed in the 2201a kernel, and started. During the reproduction of services, the 2201a kernel prescribes the service manager 2204 as the Java program that will be executed. The service manager 2204 accepts the channel identifier from the reproduction unit 2202b, through the JNI. The service manager 2204 first passes the channel identifier to the data extraction unit 3703 of a storage management library 3605h which is inside the Java 2205 library, and requests extraction of the MPEG-2 recording stream from Recording , which includes the service specified by the channel identifier of the recording area 3113. The data extraction unit 3703 of the storage management library 3605h passes the extracted MPEG-2 transport stream of the extracted Recording to the TS 1602 decoder.

Afterwards, the service administrator 2204 requests the CA 2206 library to carry out the removal of cryptography, in case the removal of cryptography has not been carried out during the recording of services. Here, the processing of the CA 2206 library, in case the removal of cryptography is requested by the service administrator 2204 during the reproduction of services, is the same as the processing in the event that cryptography removal is requested by the administrator of services 2204 during the selection of services, and therefore the descriptions are omitted. Note that after the removal of cryptography has been executed during the recording of services, there is a case in which a cryptography is applied in a single format, and in such a case, it is acceptable to use a method in which the service administrator 2204 ask the CA 2206 library to perform cryptography removal and the CA library remove the cryptography in the single format. Note that in case the removal of cryptography takes place during the recording of services, the service administrator 2204 does not request the CA 2206 library to carry out cryptography removal during the reproduction of services. Note that the present invention is applicable not However, whether the service administrator 2204 requests the CA 2206 library or not to carry out cryptography removal. After, the service administrator 2204 supplies the channel identifier to the JMF 2005a, which is in the Java 2205 library, and requests the video / audio playback. First, the JMF 2205a extracts the recording transport stream MPEG-2 specified by the prescribed channel identifier of the recording area 3113. Note that here, the present invention is also applicable even when the following is true: the extraction unit of data 3703 of the storage administration library 3605 further has a function to extract, from the recording area 313, the recording transport stream MPEG-2 specified by the prescribed channel identifier; the JMF 2205a passes the channel identifier prescribed by the service manager 2204 to the data extraction unit 3703 of the storage management library 3605 and requests to extract the recording transport stream MPEG-2; the data extraction unit 3703 of the storage management library 3605h extracts the MPEG-2 transport stream of Recording specified by the prescribed channel identifier of the recording area 3113, and upon passing the current to the JMF 2205a, the JMF 2205a extracts, from the Recording 3113, the recording MPEG-2 transport stream specified by the prescribed channel identifier. Subsequently, the JMF 2205a acquires the PAT and PMT of the recording MPEG-2 transport stream, with the same method as when the video / audio reproduction of the service administrator 2204 is requested during the selection of services. Then, the JMF 2205a acquires the PID of the video and audio that will be reproduced from the PMT. Next, the JMF 2205a supplies the acquired video / audio PID, and the AV 1603 decoder as the output destination, to the TS 1602 decoder, through the 2201b library of OS 2201. The TS 1602 decoder performs base filtering in the supplied PID. Here, TS packets with a PID of "5011" and "5012" are passed to the AV 1603 decoder. The AV 1603 decoder performs decoding of the supplied PES packet, reproduces the video / audio through the 1605 visual presenter and the loudspeaker 1604. Finally, the service administrator 2204 supplies the channel identifier to the AM 2005b that is in the Java 2205 library, and requests the transmission of data transmission. Here, data transmission reproduction refers to acquiring a Java program configured from file systems recorded in the recording area 3113, and causing the program to be executed by the Java VM 2203.

The AM 2005b first acquires the AIT of the MPEG-2 Recording Transport Stream, with the same method as when requesting the transmission of data from the service administrator 2204 during the selection of services. Note that here the present invention is applicable even if the AIT is stored in the recording area 3113 separate from the current during the recording of services, and an AIT included in the service corresponding to the channel identifier is acquired from the recording area 3113 The AM 2205b finds the "auto-start" Java program from among the AIT, and extracts the corresponding DSMCC identifier and Java program name. Referring to Figure 42, the AM 2205b extracts the Java program from row 4111, and acquires the DSMCC identifier "1" and the Java program name "a / TopXlet". Then, the AM 2005b passes the purchased DSMCC identifier of the AIT acquired from the data extraction unit 3703 of the storage administration library 3605h, and requests the extraction of the file system stored in the recording area 3113. The unit of data extraction 3703 from the storage administration library 3605h additionally extracts from the file system per recorded version in the recording area 3113 that is managed by a storage unit. 3702 data management, the file system that is specified by the prescribed DSMCC identifier and is also a version with a valid timestamp, and passes the extracted file system to the AM 2205b. The AM 2205b stores the file system in the primary memory unit 1608 or the secondary memory unit 1607. Figure 48 is an example of the file system stored in the primary memory unit 1608 or the secondary memory unit 1607. Here , in Figure 48, the configuration elements that are the same as in Figure 43 have the same numbers and their descriptions are omitted. Next, the AM 2205b passes the Java program that will be executed from the file system saved in the primary memory unit 1608 or the secondary memory unit 1607 to the Java 2003 VM. At this time, when the name of the Java program will be executed is "a / TopXlet", the file "a / TopXlet. class", which has ".class" added to the end of the name of the Java program, is the file that will be executed. "/" is a division of directory and file name, referring to figure 48, a file 4304 is the Java program that must be executed. Next, the AM 2205b passes the 4304 file to the Java 2003 VM. The Java 2003 VM runs the Java program that was passed to it. In addition, the Java 2203 VM usually reads the file in the file system saved in the primary memory, in case the reading of a different file is requested by the Java program that will be executed. However, in case the requested file is read in a different file system than the Java program mentioned above and is not stored in the primary memory, it is acceptable to carry out processing in which a request is made to the storage management library, the file included in the file system that is requested to be read is extracted from the recording area and saved in the primary memory. Here, during the playback of services, it is necessary to run the video / audio and Java program synchronously. Thus, during the reproduction of services, when the acquisition of a file system is requested by the Java VM 2203, the data extraction unit 3703 of the storage administration library 3605h refers to the time stamp of the file system managed by the data management unit 3702, and extracts the file system with a valid version. Here, a valid timestamp refers to, for example, the moment when the MPEG-2 transport stream of Recording during service playback is about / equal to the start time and below / equal to the end time indicated by the time stamp here the video / audio that will be synchronized by the Java program is video / audio multiplexed in the MPEG-2 transport stream of Recording while recording services, is continuously synchronized with the MPEG-2 recording stream of Recording, and divides the time. Thus, the synchronization of the Java program with the time in the MPEG-2 recording transport stream is the same as the synchronization of the Java program with the video / audio multiplexed in the MPEG-2 recording transport stream. Figure 49 is a flowchart showing an example of execution processing of the Java program stored in the recording area using the storage administration library 3605, through the AM 2205b which is supplied with the administrator channel identifier of services 2204 and you are asked to execute playback of data transmission during the playback of services. Referring to the flow diagram of Figure 49, after the AIT is supplied with the channel identifier of the service manager 2204 and asked to perform data transmission playback during service playback (S-4801) , the acquisition through the filtration of the AIT or the acquisition of the recording area is executed in the order mentioned previously (S- 4802); the Java program with "auto-start" control information as indicated in the acquired AIT information is selected, and the DSMCC identifier and Java program name are extracted (S-4803) and with the DSMCC identifier extracted, to the extraction unit Data 3703 of storage management library 3605 is asked to extract the file system from the recording area. The data extraction unit 3703 of the file storage administration library 3605 extracts, from the file systems recorded by version in the recording area 3113 that are managed by the data management unit 3702, the file system that is specified by the prescribed DSMCC identifier and whose version has a valid timestamp, and passes this file system to an AM (S-4805). The AM saves the file system extracted from the recording area 3113 in the primary memory area 1608 (S-4806). Then, the AM acquires, from the file system, the file of the Java program that will be executed, based on the name of the extracted Java program, passes the file to the Java VM 2203 and carries out a start instruction for the Java program (S-4807). Continuing further, during the period until the reproduction of services ends, with respect to a version of the file system extracted from the recording area 3113, when the end time of that time stamp arrives (S-4808 to S-4818), the processing, in which the data extraction unit 3703 of the storage management library 3605 once extracted, of the file systems recorded by version in the recording area 3113 that is managed by the data management unit 3702, the file system that is isolated by the prescribed DSMCC identifier and which is a version with a valid time stamp that passes the file system to the AM (S-4805), continues repeatedly. Therefore, the extraction of the file system synchronized with the playing time of the recording area 3113 and the saving of that file system in the primary memory is achieved, and therefore, the Java 2203 VM that always uses File system files synchronized with play time. Through the process mentioned above, the service administrator 2204 accepts the channel identifier, and executes the acquisition, removal of cryptography, video / audio playback and Java program start of the current stored in the recording area 3113. This series of processes is collectively called "reproduction of services". The service reproduction processing by the service manager 2204 is basically the same as the service selection processing. Nevertheless, during the selection of services, the video / audio playback and the start of the Java program are executed based on the data acquired from the transmission wave, during the reproduction of services, video / audio playback and start of the Java program are executed based on the data acquired from the recording area 3113. In addition, the recording does not necessarily store all the data included in the service. Therefore, all the data used during the selection of services and reproduction of services are not necessarily the same. In addition, in a receiving terminal that includes services recording / playback functions, and referring to FIG. 37, the Java library 3605 includes a recording manager administration library 3604g. In addition, a 2205f service manager administration library in the Java 3605 library also provides the Java program with a function to reproduce the service. The Java program implements the functions of the Java program while using these libraries. The Java program can perform service recording through the 3606 recording manager when using the 3605g recording manager administration library. Specifically, when the Java program passes the channel identifier to the administration library of 3605g recording manager, the recording administrator administration library 3605g passes the accepted channel identifier to the 3606 recording manager .. After that, the recording of services is performed by the 3606 recording manager, in the same way that the recording of channels using the EPG 3602, and based on the information indicated in the PMT identified by a program number corresponding to the channel identifier, the video / audio belonging to that service is recorded in the recording area 3113 , and the Java program belonging to that service is recorded in the recording area 3113. In addition, using the recording administrator administration library 2205f, the Java program can perform the reproduction of services through the service administrator 2204 Specifically, when the Java program passes the channel identifier, which indicates the service stored in the recording area. 3113 during service recording, to the recording administrator administration library 2205f, the service administrator administration library passes the accepted channel identifier to the service administrator 2204. After that, the reproduction of services is brought to performed by the service administrator 2204, in the same way as that of channel reproduction using the EPG 3602; he video / audio that belongs to that service is reproduced and a Java program that belongs to that service is started, from the recording area 3113, based on the information indicated in the PMT that is identified by the number proposed that corresponds to the channel identifier. In this way, it is possible for the Java program to perform service recording using the recording administrator administration library 3605g included in the Java library, and to perform playback of services using the recording manager administration library 2605f. Note that in the present modality, as shown in S-4503 of Figure 46, all Java programs (application programs) indicated in the AIT are recording targets, but it is also acceptable that all Java programs that correspond to a type of stream "data" and supplementary information "DSMCC" indicated in the PMT are recording targets. The transmission recording apparatus according to the present embodiment includes: a tuner 1601, which is the receiving unit that receives the transmission wave; a decoder TS 1602 that extracts, from the transmission wave received by the tuner 1601, video / audio data indicating the content that will be seen, as well as extracted, from the transmission wave received by the tuner 1601, a Java program repeatedly included in the transmission wave and an AIT that indicates a list of the Java programs present in the transmission wave and repeatedly included in the transmission wave; a recording area 3113 for recording video / audio damage, the Java program and the AIT; a JMF 2205a that records the video / audio data extracted by the TS 1602 decoder in the recording area 3113; a storage administration library 3605h that binds a timestamp to the extracted Java program in case the Java program extracted by the TS 1602 decoder differs from a Java program already recorded in the recording area 3113, and writes the Java program to the that the time stamp was set in the recording area 3113, and sets a time stamp to the extracted AIT in case the AIT extracted by the decoder TS 1602 is different from the AIT already recorded in the recording area 3113 , and record the AIT to which the time stamp was added in the recording area 3113 and, in addition, create storage information management and indicate a recording location for the Java program in the recording area 3113 each time the Java program is recorded in the recording area 3113, an AV decoder 1603 which reproduces the video / audio data recorded in the recording area 3113 and a service manager 2204 and a Java VM 2203 which een, instead of recording indicated by the administration information of storage, and run the Java program with a timestamp corresponding to a moment of playback of video / audio data, the Java program being indicated by the AIT with a timestamp corresponding to the playback time. The effects of the recording / playback processing of services such as those mentioned in this modality are indicated below. As a first effect, with respect to a file system, one of each file system with identical version is stored, and the duplicate storage disappears and then it is possible to reduce the storage area in the recording area 3113. Also, even when the file system is a new version, in case the files included in that file system do not differ from the file system of the previous version, by not storing duplicates, a storage area can be implemented in file units. As a second effect, assigning and storing each version of the file systems with a timestamp during the recording of services, and multiplexing the video / audio, which is synchronized and sent on the same channel, in a stream of recording and storage of the current, it is possible to synchronize and reproduce the video / audio data, synchronized and sent, with the Java program. Also, as a third Effect, a module unit (Data Carousel Modules) and a unit of objects (Object U-U in an Object Carousel) are stipulated in the DSMCC specifications as data units sent repeatedly; the object is a unit of data included in the module and that is smaller than the module, and is the actual data of the directory, file and so on. The detailed description of the module and the object are given in the DSMCC specifications (ISO / IEC 13818-6), and since this is a publicly known technology, its descriptions are omitted here. The reconstitution and storage of the file system in the present invention is a scenario that carries out the storage in such a way that the files in the file system are not duplicated, and is equivalent to the reconstitution and storage of data in units of objects; it is possible to implement the reduction of the storage area more efficiently than in the prior art which reconstitutes and stores data in module units. As a fourth effect, because all the Java programs included in the service are stored, during the recording of services, in the recording area 3113 as reconstituted data as a file system, it is also possible, during the reproduction of services, filter by skipping the MPEG-2 section of DSMCC and rebuilding the file system again, and reduce the use of filter resources while also shortening the start time of the Java program. As a fifth effect, when recording, by version and without duplication, a file system corresponding to a certain Java program indicated in the AIT, and when starting / ending the Java program from the corresponding recorded file system according to information from control indicated in the AIT ("auto start", "delete" and so on), in case the Java program is repeatedly started / terminated, it is not necessary to acquire the file system each time, and the recording area can be reduced . Or, when recording, by version and without duplication, the file system indicated in the PMT and when starting / ending the Java program of the corresponding file system recorded according to the control information indicated in the AIT ("autorun", "delete "and so on), in case the Java program is repeatedly started / terminated, it is not necessary to acquire the file system each time, and the recording area can be reduced. Second mode In the first mode, the storage is implemented making possible the reduction in the recording area 3113 and the synchronized reproduction of the video / audio, when reviewing the file system version During the recording of services, add a timestamp to each version of the file system and store the file system in the recording area 3113. However, in addition to the file system encoded in the DSMCC format, a program configuration of TV in the transport stream, a table of the PAT, PMT and AIT, which represent control information of the Java program included in the service, an NPT coefficient that indicates playback position information for video / audio (NPT Reference Descriptor) ), a current event (Current Event Descriptor) and so on, exist as data sent repeatedly over a fixed interval in the transport stream. For a detailed description of the NPT coefficient and the current event, refer to ISO / ICE 13818-1, specifications of "MPEG2 Systems". Here, because the NPT coefficient (NPT Reference Descriptor) is information that contains a table, the NPT coefficient is hereafter described as the table. For example, the DSMCC identifier, file name, VersionNo (version number), control information and so on of a Java program included in a service is indicated in the AIT included in that service. In this way, during the reproduction of services, the information indicated in the AIT is necessary. In the present modality, the indicated information in the AIT it is stored in the recording area 3113 during the recording of services. In addition, because the AIT is data sent repeatedly, all this data sent repeatedly is not stored; instead, only the AIT with a new version is given a timestamp and stored. Next, a service recording processing by a recording manager 3606 is described, which occurs in a device for receiving digital transmissions with a function of recording / reproducing services as shown in FIG. 29 of the present invention. The service write processing by the recording manager 3606 in the present invention is almost the same as the service write processing by the recording manager 3606 in the first mode, apart from the processing that relates to the acquisition of the AIT . Therefore, the descriptions of the same processing are omitted here, and only the different point is mentioned, which is a processing of a storage management library that is supplied with a channel identifier of the recording manager 3606 and is requested store a data transmission. When a data recording unit 3701 from the storage administration library 3605h supplied with the channel identifier from the recording manager 3606 and asked to store the transmitted data, the data recording unit 3701 first acquires a PAT and a PMT, and also acquires the AIT, by a method similar to that during the service recording processing in the first mode. Then, the data recording unit 3701 of the storage management library 3605h finds all the Java programs indicated in the AIT and extracts the corresponding DSMCC identifier and Java program name, by a method similar to that during the recording processing of services in the first modality. Then, the data recording unit 3701 of the storage management library 3605h uses the acquired DSMCC identifier of the AIT to collect a necessary DSMCC MPEG-2 section, reconstitutes a file system according to the DSMCC format, and stores the file system in the recording area 3113, by a method similar to that during the service recording processing in the first mode. Then, the data recording unit 3701 of the storage administration library 3605h stores the information of the AIT in the recording area 3113. Here, a storage position for the file system stored is set to correspond to information of each Java program in the AIT information, and is stored in the recording area 3113. Figure 50 is a diagram showing an example of a stored file system set to correspond to the information of the AIT and stored in the recording area 3113. In figure 50, the elements with the same numbers as in figure 42 and figure 44 are the same as those in figure 42 and figure 44 and their descriptions are omitted. Column 4901 stores the storage position of the stored file system that corresponds to each Java program. Note that the storage position in the file system may be in a format that refers to a storage position that does not depend on the Version; however, in the first case, during the reproduction of services, the extraction of the file system with a valid version at a certain time is requested from the data extraction unit 3703 of the storage administration library 3605h, based on the storage position of system with the information of AIT. In the latter case, because a reference to a version of the file system with a valid time stamp of the recording area 3113 during the reproduction of services is indicated in the AIT, there is no need to request the extraction of the system from files with a valid version by the data extraction unit 3703 from the storage management library 3605h, and it is possible that file system acquisition processing is carried out easily. Note that it is also acceptable to cause only the DSMCC identifier to correspond to the information of each Java program of the AIT, without causing the storage position of the accumulated file system to correspond. In this case, during the reproduction of services, the data extraction unit 3703 of the storage administration library 3605h is asked to carry out the extraction of a file system that is a valid version at a given time based on in the DSMCC identifier contained by the AIT information. For example, the DSMCC identifier identical to the DSMCC identifier of the Java program indicated in the AIT is removed from row 3715 of the data (storage management information) shown in Figure 47, and the Java program is read from the storage location ( place of recording) that corresponds to that DSMCC identifier and is executed. Here, when the AIT information includes sufficient information to initiate / control the Java program included in the service during the reproduction of services, the present invention is applicable even when it is all or part of the information that refers to all the Java programs indicated in the AIT, and even if it's information with a completely different from the AIT format. Here, since the table of the PAT, PMT, AIT, NPT coefficient that indicates video / audio playback position information (NPT Reference Descriptor), and so on are repeatedly sent over a constant call, the PAT table , PMT, AIT, NPT coefficient and so on are duplicated and sent during the service recording period. Therefore, the table of the PAT, PMT, AIT, NPT coefficient and so on, selected and collected when the data recording unit 3701 of the storage management library 3605h prescribes the PID and section filter condition to the decoder TS during the recording of services, it is acquired repeatedly during the service recording period. There are cases in which a table of the PAT, PMT, AIT, NPT coefficient, and so on repeatedly sent / acquired is always duplicated and sent / acquired without changes in the content during the recording of services, and cases in which there are any number of changes in content during the recording of services. Here, data content of a table is called a version of that table, and a change in the data content of a table is called a versionUP of that table. Also, here, an identical version refers to when there is no changes in the pre-sent data content from the previous data content, in a table repeatedly sent, and a new version refers to when there is a change in the data content repeatedly sent pre-sent from the previous data content. Note that in the present invention, the table of the AIT has a version, and confirmation of the VersionUP (change in the data content) of the AIT table sent repeatedly is assumed as judging that the VersionUP has taken place when the version values differ when being compared. However, the present invention is also applicable even when a different method is used, as long as that method can detect a change in content in the table of the TIA itself. As indicated above, during the service recording period, since a table is repeatedly sent / acquired, storing tables with identical versions in recording area 3113 is wasting for recording area 3113. Furthermore, during the recording period of services, there is the case in which the VersionUps of a table, and to be able to carry out the VersionUp during the reproduction of services, it is necessary to store the table with the new Version in the recording area 3113. Figure 51 is a flow chart that indicates a recording processing example of the AIT information by the data recording unit 3701 of the storage management library 3605h, which has been requested to store the data transmission when the channel identifier is supplied from the recording manager . Accordingly, referring to Fig. 51, the data recording unit 3701 of the storage management library 3705h is supplied with the channel identifier from the recording manager during the service recording period, and is asked to store the data transmission (S-5001). After this, the acquisition through the filtering of the AIT is continued in the previously mentioned order (S-5002 to S-5003, S-5007) and together with this, referring to figure 46, the acquisition of the system of files through the filtering of the MPEG-2 section of DSMCC and the reconstitution of the file system is continued in the order mentioned previously. Then, with respect to identical tables, the version of the table sent repeatedly is reviewed, and in case the version of the table currently acquired matches the version of the table previously acquired, the table currently acquired is not stored in the area of recording 3113 (not of S-5004). On the other hand, in case the table acquired first or the currently purchased version of the table differs from the previously acquired version of the table (in the case of a new version), the table currently acquired with a new version is stored in the recording area 3113. (If from S- 5004). In addition, each version of the table that will be stored is also given a time stamp that indicates a period from the moment in which that version of the table is acquired again (start time) until the moment in which the next table VersionUp-ed is recently acquired (end time) and stored (S-5006). In addition, referring further to Figure 50, there are cases in which the version of the file system contained by that storage position is changed by the stored AIT information, during the service recording period. In preparation for such a case, the AIT information has the storage position of each version of the stored file system that has a timestamp per version included in the Java program, for each Java program indicated in the AIT (S-5005). A method to have the storage position of the file system of each version is mentioned later in figure 53. Figure 52 is an example that indicates the information of the AIT by version, each version being assigned, by the data recording unit 3701 of the storage management library 3605h, with related information such as a timestamp and recorded in the recording area 3113; the file system being managed by the data management unit 3702 of the storage administration library 3605h. In Figure 52, the configuration elements same as those in Figure 42 have the same reference numbers, and their descriptions are omitted. In Figure 52, row 5121 to row 5123 indicates each version of each AIT information stored in recording area 3113. Column 5111 is a name of AIT information stored in recording area 3113; column 5112 is the version of the AIT information; column 5113 is the timestamp by version of the AIT information; column 5114 is the channel identifier related to the AIT information and column 5115 is the storage position by version of the AIT information within the recording area 3113. The AIT information with a "1" version and an AIT information name "information AIT - Y" indicated in row 5121 has a time stamp of "0: 00-0: 20", and storage position is 5101 within recording area 3113. Information AIT with a version "2" and an AIT information name "AIT-Y information" indicated in the 5122 helera has a time stamp of "0: 20-0: 25", and in the storage position is 5102 within recording area 3113. Here, version 2 of AIT information "AIT-Y information" stored in 5102 of recording area 3113 is compared to version 1 of AIT information "AIT-Y information" stored at 5101, and as indicated in row 5131, the control information of the Java program with a Java program identifier of "301" is changed to "destroy"; as indicated in row 5132, the control information of the Java program with a Java program identifier of "302" is changed to "autostart". In addition, the AIT information with a "1" and an IT information name "AIT-Z information" indicated in row 5123 has a timestamp of "0: 00-1: 00", and storage position 5103 within of the recording area 3113. Figure 53 is a further example indicating the AIT information, wherein the AIT information that the data management unit 3702 of the storage management library 3605h manages and stores has, for each Java program indicated in the AIT, a storage position of the file system version with a valid timestamp, by version, including that Java program. In Figure 51, the configuration elements identical to those of Figures 52 and Figure 47 have the same numbers, and their descriptions are omitted. In figure 53, row 5211 to row 5221 indicate the file system included in the Java program indicated in row 4111 in more detail, indicating the file systems with a valid version by timestamp; column 5201 is the timestamp, and column 5202 is the storage position of the file system by version. Storage position 4901 of the file system includes the Java program with a Java program identifier of "301" as indicated in row 4111, of version 1 of AIT information "AIT-Y information" stored in 5101 of the area of 3113 recording, further has i) the storage position of a "1" version of the "FS-A" file system that has a timestamp of "0: 00-0: 10" as indicated in row 5211, column 5201 and ii) the storage position of a file system version "2" "FS-A" that has a timestamp of "0: 10-0: 25", as indicated in row 5212, column 5201 Thus, in the present embodiment, the storage administration library 3605h associates the storage management information with the Java program, and stores the storage administration information in the AIT recorded in the recording area 3113, and the service manager 2204 and the Java 2203 VM reads the Java program with the time stamp that corresponds to the playback time from the storage place indicated by the administration information storage indicated in the AIT, and run the Java program. Following are descriptions that refer to a service reproduction processing by the service administrator, in a device for receiving digital transmissions with a function of recording / reproducing services, such as that shown in figure 29, in this modality. The processing of reproduction of services by the service administrator in the present modality is almost the same as the processing of reproduction of services by the service administrator 2204 of the first modality, apart from the processing that refers to the acquisition of the AIT. Therefore, the descriptions of the same processing are omitted here, and only the different points are mentioned, which are a processing of a storage administration library and a processing of the AM 2205b which is asked to carry out the reproduction of data transmission by the service manager 2204. When the AM 2205b is supplied with the channel identifier of the service manager 2204 and is requested to carry out data transmission reproduction, the AM 2205b first passes the prescribed channel identifier to the storage management library, and request to extract the AIT information stored in the recording area 3113. The storage management library 3605h also extracts the AIT information included in the service corresponding to the prescribed channel identifier and the AIT information which has a version with a valid timestamp, and passes the information AIT extracted to AM 2205b. The AM acquires the AIM information that is stored in the recording area 3113 during the recording of services included in the service that corresponds to the channel identifier and which has a valid time stamp. The AM 2205b, referring to figure 50, finds the Java program of "autoinicio" of the AIT information, and extracts the name of the corresponding Java program. Referring to Figure 50, the AM 2205b extracts the Java program in row 4111, and acquires the Java program name "a / TopXlet" and the storage position of the file system with a version that has a valid timestamp . The AM 2205b stores the file system acquired in the primary memory unit 1608 or the secondary memory unit 1607. Here, the storage position of the file system with a valid time stamp is easily acquired, and therefore it is possible to omit the processing such as inquire with the storage library after acquiring the DSMCC identifier. Note that here, in case the position of file system storage does not have the storage position of each version of the file system with a timestamp, and simply have the storage position of the file system, you can carry out the following processing: the AM 2205b passes the storage position of the acquired file system to the storage management library and request extraction of the file system stored in the recording area 3113, and the storage administration library 3605h extracts a version of the file system with a mark of valid time and pass the version to the AM 2205b. Also, note that here the present modality is applicable even when the same method as that of the first modality is taken as a method for the AM 2205b to acquire the file system of the Java program that will be executed and save the file system in the primary memory unit 1608 or secondary memory unit 1607. Specifically, the "auto-start" Java program is found from the AIT information, and the corresponding DSMCC identifier and Java program name are extracted. Referring to Figure 50, the AM 2205b extracts the Java program from row 4111, acquires the DSMCC identifier "1" and the name of the Java program "a / TopXlet", passes the acquired DSMCC identifier from the AIT information to the storage administration library and request removal of the file system stored in recording area 3113. The storage management library 3605h extracts the file system that is specified by the prescribed DSMCC identifier and which is of a version with a Valid time stamp, and pass the extracted file system to the AM 2205b. The AM 2205b stores the file system in the primary memory unit 1608 or the secondary memory unit 1607. This mode is applicable even if this method is used. Figure 48 is an example of a file system stored in the primary memory unit 1608 or the secondary memory unit 1607. Here, in Figure 48, the configuration elements that are the same as those in Figure 43 have the same numbers, and their descriptions are omitted. Then, the AM 2205b passes the Java program that will be executed from the file system saved in the primary memory unit 1608 or the secondary memory unit 1607 to the Java VM 2203. At this time, when the name of the Java program will be executed is "a / TopXlet", the file that will be executed is the file "a / TopXlet. class", which is the name of the Java program with ".class" added. "/" is a directory division and file name, and in reference to figure 48, a file 4304 is the Java program that must be executed. Next, the AM 2205b passes the file 4304 to the Java VM 2203. The Java VM 2203 runs the last Java program. Here, during the playback of services, it is necessary to synchronize the video / audio and Java program. Therefore, during the reproduction of services, the storage management library 3605h refers to the timestamp of the file system and extracts the file system from a valid version, when it is requested to acquire a file system by the VM Java 2203. Here, time stamp validity refers to, for example, when the moment of the MPEG-2 transport stream during service playback is passed from the start time, as well as before the end time indicated by the time stamp Fig. 54 is a flow chart indicating an example of an execution processing of a Java program stored in the recording area using the storage administration library, by the AM 2205b which is supplied with a channel identifier of the administrator of 2204 services and you are asked to carry out playback of data transmission, during the playback of services. Referring to the flow diagram of Figure 54, after the AIT is supplied with the identifier of service manager channel 2204 and you are requested to perform data transmission playback during service playback (S-5301), in the prescribed channel identifier, the extraction of AIT information from the administration library is requested storage to the recording area (S-5302); the storage management library extracts the AIT information that has an isolated channel identifier and that is a version with a valid timestamp. Then the Java program with "autostart" control information is selected as indicated in the extracted AIT information, and the Java program name and file system of a valid version is extracted (S-5304). Based on the file system and extracted Java program name, the files of the Java program that will be executed are acquired, passed to the Java VM 2203 and the start instruction for the Java program is carried out (S-5305). Continuing further, during the period until the reproduction of services ends, with respect to a version of the AIT information extracted from the recording area, when the final time of this time stamp arrives (S-5306 to S-5308), the processing, in which the storage management library once again extracts, from the recording area, the AIT information that is isolated by the prescribed channel identifier and which is a version with a valid timestamp and passes the AIT information to the AIM (S-4805), continues repeatedly. Therefore, the extraction of the AIT information synchronized with the playback time of the recording area is achieved, and in this way, the Java VM 2205 is achieved, which always uses the files of the file system synchronized with the reproduction time that it is included in the Java program indicated in the AIT information that is synchronized with the playback time. In this way, when storing, during the recording of services, each version of the AIT information with an added time stamp, processing in which the AM acquires the AIT during the reproduction of services is unnecessary. Moreover, the stored AIT information is a file system configured for the Java program indicated in that AIT, and by containing the storage position of the file system version with a valid time stamp, it becomes easier to acquire the file system of recording area 3113 during service playback. Note that in the present modality, AIT is described as an example of a storage method for data sent repeatedly. However, as mentioned above, in addition to the file system encoded in the DSMCC format, a table of the PAT, PMT, AIT and NPT coefficient, and a current event, exist as sent data repeatedly during a fixed interval in the transport stream. The method in the present mode, in which the data repeatedly sent during the recording of services are given a timestamp and stored, and the data necessary during the reproduction of services are acquired from the recording area 3113, after making reference to that time stamp, and used, are also applicable to data such as the table of the PAT, PMT, AIT, NPT coefficient and so on, and the current event. The effects of the present modality are the following. A first effect is, as described in the first embodiment, that the TS 1602 decoder is a device that has a function for selecting the PES packet and MPEG-2 section that conform to instructed conditions of the MPEG-2 transport stream, which in turn are based on instructions such as PID and section filter conditions prescribed by the CPU 1606. In the TS 1602 decoder, there is one or more of the 2002 PID filter, one or more of the 2003 section filter, and one or more of the descrambler 2004. Here we describe in particular the section filter 2003, and during the consecutive filtering of the PAT, PMT, AIT, and NPT coefficient, the TS decoder is prescribed with each section filter condition different, a table_id "0", a table_id "2", a table_id "0x74" and a table_id "0x3D"; however, because a section filter can not simultaneously perform filtering in a plurality of tables (PAT, PMT, AIT, NPT coefficient and so on), the section filter is used per table that requires filtering. The section filter is a finite number of resources, but during the selection of services / reproduction of services, it is necessary to continue carrying out the filtering in the PAT, PMT and AIT in order to detect a change in information with respect to the existing program. within the transport stream. Therefore, each section filter to filter those tables is used exclusively. However, in the present modality, processing in which the AM acquires the AIT is unnecessary during the reproduction of services. Therefore, the consecutive filtering of the AIT from the transport stream by the TS decoder, or the consecutive filtering of the PAT, PMT, AIT and NPT coefficient is unnecessary. Through this, a wasteful use of the section filter to filter the PAT, PMT, AIT and NPT coefficient can be reduced. Also, as a second effect, through the stored AIT information that maintains the storage position of the file system version with a valid time stamp, it becomes easier to acquire the file system of the recording area 3113 during the reproduction of services. Furthermore, as a third effect, during the reproduction of services, and particularly during magical reproduction (high-speed playback, skip playback), it is difficult to carry out filtering in tables such as PAT, PMT, AIT and NPT coefficient in real time using the section filter of the transport stream that is stored in the recording area 3113. In particular, with respect to the filtering of the NPT coefficient during the jump playback, it is necessary to acquire the NPT coefficient in which a moment of video / audio playback is multiplexed with a different previous / next time, but depending on a general section filter, it is impossible to carry out the filtering in this NPT coefficient in which the time to play the video / audio is multiplexed with the previous / next different time, and it is impossible to acquire this NPT coefficient. In the present embodiment, the table filtered during the recording of services is stored in a form different from that of the transport stream. It is therefore possible to omit the processing in which filtering is carried out in the table of the transport stream during the reproduction of services, and it is possible to easily acquire information from the table during magic reproduction. In addition, in the reproduction of a received transmission wave as that prescribed in MHP / OCAP, among the data within the transmission wave, only the real-time data is necessary, and extracting and recording the data separately is not required . Even in case of recording the transmission wave, the reduction of the recording area is achieved by recording data in the form of a carousel sent in a carousel format, as shown in patent references 1 and 2. However, even when they record data of a small size (the table) apart from the data in the form of a carousel, the effect of reducing the recording area is not obtained, and the data is not recorded separately. However, in the reproduction of the recorded transmission wave as prescribed in OCAP-DVR, several effects can be obtained, including the reduction of filter resources during the reproduction of the recorded transmission wave, when recording data separately (the table ) different from the carousel-shaped data included in the transmission wave. For example, in OCAP-DVR, a hop function, which uses the above-mentioned position information of a hop destination (NPT coefficient), is provided as a function to see the transmitted waveform recorded as packet means. In case the position information of the jump destination is multiplexed within the transmission wave, it is necessary to extract the position information of the jump destination at the time of playback; instant jump playback can not be achieved, and in this way a highly responsive observation is impossible. By setting a time stamp and recording the position information of the jump destination separately, it is possible to provide a highly responsive information of the recorded transmission wave. In other words, in the present embodiment, the decoder TS 1602 additionally extracts, from the transmission wave received by the tuner 1601, reproduction position information (NPT coefficient) which indicates a reproduction position of the video / audio data and it is repeatedly included in the transmission wave; the storage management library 3605h sets a timestamp to the playback position information extracted by the TS 1602 decoder and records the playback position information to which the timestamp has been set in the recording area 3113 , in case the extracted recording position information differs from the playback position information already recorded in the recording area 3113; and the AV decoder 1603 is isolated, when a playback start time is indicated by the video / audio data, the playback position that corresponds to the playback start time indicated on the basis of the reproduction information to which the time stamp was attached, and initiates the reproduction of the video / audio data from the indicated reproduction position. Third modality In the first and second modalities, all Java programs, which include a file system which are included in a service in which recording is prescribed, are stored. However, in the present embodiment, the recording of the file system that includes which of the Java programs included in the service in which the recording is prescribed is determined according to the control information 2602 contained by each Java program indicated in FIG. AIT. In the control information indicated in the AIT, there is the following: "auto start", which automatically causes the Java program to run; "present", which does not run automatically, but is executed by another Java program; and "delete" and "destroy", which automatically causes termination. However, in the control information, Java programs prescribed as "delete" and "destroy" are no longer necessary. Therefore, they are a file system that includes a Java program that is indicated in the AIT, as well as which has control information of "autoinicio" or "presente", it is stored in the recording area. It is acceptable not store a file system that includes the Java program with control information 2602 of "delete" or "destroy", even if that Java program is indicated in the AIT. In this way, an object of the present embodiment is to implement the most effective reduction of the recording area 3113, through the storage of the file system that includes a Java program according to the AIT control information. Next, a recording service processing by the recording manager 3603 is described, which occurs in a device for receiving digital transmissions with a service recording / reproducing function as indicated in FIG. 29 in the present embodiment. The recording processing of services by a recording administrator 3606 in the present embodiment is essentially the same as the service recording processing by a recording manager 3606 of the present embodiment or the second embodiment, with the exception of the processing that refers to the acquisition of the AIT. Therefore, the description of the identical processing is omitted here, and only the different point is described, which is the processing of the storage management library that is supplied with the channel identifier from the recording manager 3606 and is request to store the data transmission.

When the storage administration library 3605h is supplied with the channel identifier of the recording administrator 3606 and is requested to store the data transmission, first, according to the channel identifier, and with a method identical to that used during the processing of recording services in the first modality, acquires the PAT and PMT, and also acquires the AIT. Here, the AIT information acquired is the information indicated in Figure 42. Figure 43 is a file system that includes all the Java programs indicated in the AIT. Then, in reference to the AIT, the Java program of "autoinicio" or "presente" is found among the AIT, and all the corresponding DSMCC identifiers and Java program names are extracted. Referring to Figure 42, the storage management library extracts the Java programs from row 4111 and row 4112, and acquires the DSMCC identifier "1" and the Java program name "a / TopXlet", and the DSMCC identifier "1" and name of Java program "b / GameXlet". Next, the storage management library uses the DSMCC identifier acquired from the AIT, and acquires a PID, from the TS package stored in the PMM DSMCC format. Specifically, the PID of the elementary stream is acquired with a DSMCC identifier that is forms in the complementary information and which has a type of "data" stream between the PMTs. At this time, when the DSMCC identifier is "1" and the PMT is as in Figure 41, the elementary streams of row 1114 are conformed, and the PID "5014" is extracted. The storage management library 3605h prescribes, to the TS 1602 decoder, the PID of the TS packet and a section filter condition transmitted by the MPEG-2 section in which data in the DSMCC format has been inserted, through the library 2201b of OS 2201. Here, the PID "5014" is supplied. The TS 1602 decoder performs filtering in the MPEG-2 section of the DSMCC using the supplied PID, and passes the section to the CPU 1606 through the primary memory unit 1608. As a result, the storage administration library 3605h can collect a necessary DSMCC MPEG-2 section. The storage management library 3605h reconstitutes the file system of the MPEG-2 section collected according to the DSMCC format, and stores that file system in the recording area 3113. Figure 55 is an example of a file system stored in recording area 3113 during service recording. In Figure 48, the configuration elements that are the same as those in Figure 44 have the same numbers, and their descriptions are omitted. Then, the storage management library 3605h continues to acquire file systems through the filtering of the AIT and the MPEG-2 section of the DSMCC, and through the reconstitution of the file system, during the recording period of services, the same way as in the first and second modalities; Each version of the file system is given a timestamp and is stored. Note that here the Java programs that will be executed have identical DSMCC identifiers and therefore exist in reconstituted file system from MPEG-2 sections of DSMCC in the same elementary stream. However, the present invention can also be applied even in other cases, such as in case the Java programs to be stored have different DSMCC identifiers and exist within different elementary streams. Here, service reproduction processing by the service administrator, in a device for receiving digital transmissions that includes a function of recording / reproducing services as shown in figure 21 in this embodiment, is a processing identical to that of the first and second modalities and therefore their descriptions are omitted.

Note that in the first and second modalities, and during the selection of services or reproduction of services, the file that is passed to the Java VM 2203 by the AM 2205b and that requests the execution is a Java program indicated in the AIT, and in the present modality is "a / TopXlet. class" and "b / GameXlet. class". However, these files passed to the Java 2203 VM and run from the Java 2203 VM can use all the files in the file system, including themselves, during that run time. Therefore, during the recording of services, since it is possible that those Java programs passed to the Java VM 2203 can be used during that moment of execution, the method that stores all the files in the file system that includes the Java program indicated in the AIT. However, a system not limited to MHP / OCAP / OCAP-DVR is assumed, and in case only the Java program indicated in the AIT is used during the selection / reproduction of services, it is acceptable to store only the Java program indicated in the AIT, as indicated in Figure 56. In this case, the storage administration library 3605h uses the DSMCC identifier acquired from the AIT, reconstitutes the file system of the MPEG-2 section according to the DSMCC format, and In addition, from inside the reconstituted file system, it acquires only Java programs with a Java program name "a / TopXlet" and a Java program name "b / GameXlet", and stores the Java programs in the recording area 3113. Figure 56 is an example of a file system stored in the recording area 3113 during the recording of services in such case . In the diagram, a circle represents a directory; 4301 is a root directory, 4302 is a "a" directory, 4303 is a "b" directory, 4304 is a "TopXlet. Class" file, and 4305 is a "GameXlet. Class" file. In this way, through the method indicated in this modality, the system of files or files that include the Java program according to the control information of the AIT is stored, and through this, it is possible to reduce more effectively the recording area of the recording area 3113. Fourth embodiment In the embodiments of the present invention, referring to FIG. 32 and FIG. 33, the present invention is applicable even if all or one of the decoder TS 1602, the decoder AV 2005, the AV 3111 encoder and 3112 multiplexer are configured from a single device. Note that in the present invention, the data sent from the decoder TS 1602 and entered into the AV decoder 2005 is described as being a PES packet with a prerequisite; however, the present invention is also applicable even if the decoder output TS 1602 or AV decoder input is data in a different format, such as ES. Note that the encoding format of the audio signal and video signal through the AV encoder is assumed to be an MPEG-2 audio format through MPEG-2 audio coding, in the case of the audio signal, and as being in MPEG-2 video format through the MPEG-2 video encoding, in the case of the video signal, and the AV encoder has been indicated as entering the audio signal and video signal and emitting the PS video / audio packages. However, the encoding format of the AV encoder is not limited to the MPEG-2 and MPEG-2 audio formats mentioned above, and the video / audio format sent is not limited to the PES package. Note that in the embodiments of the present invention the recording area 3113 is indicated as entering and storing the recording transport stream MPEG-2 generated by the multiplexer 2812. However, the format of the current stored in the recording area 3113 it is not limited to the MPEG-2 transport stream, and the present invention is applicable even when the format is different, such as an MPEG-2 program stream. Furthermore, in the embodiments of the present invention, the multiplexer generates the transport stream MPEG-2 as a prerequisite. However, the multiplexer does not is limited to a PS multiplexer, and another device, such as a PS multiplexer, can accomplish this; therefore, the format of the recording stream multiplexed by the multiplexer is not limited to the transport stream MPEG-2, and the present invention is applicable even when the format is different, such as a program stream MPEG-2. Furthermore, note that in the present invention, the storage management library 3605h is indicated as bringing the MPEG-2 transport stream from the recording area 3113 and passing the current to the decoder TS 1602 during service playback. However, the format of the current drawn from the recording area is the same as the format stored during the recording of services, and it can be another format without being limited to the MPEG-2 transport stream. Also, together with this, in the embodiments of the present invention, during the reproduction of services, the decoder TS 1602 is indicated as decoding the transport stream MPEG-2, and the decoder AV as decoding the PES packet. However, the present invention can be applied even when another device corresponding to another decoding format is used, as long as the device can decode a current of an identical format to the current stored in the area of recording 3113. Note that in the present invention, the recording area 3113 is indicated as corresponding to all or part of the secondary memory area 1603. However, the memory area 3113 may be: The primary memory 1608; HDD, BD, DVD, and a semiconductor memory such as SD; or a separate terminal connected such as a means, such as TCP / IP connection, a USB connection, an IEEE 1394 connection, an infrared connection and so on. In addition, the format of the current stored by the recording area 3113 is not limited to the MPEG-2 transport stream, and the present invention can be applied even when a different format is used. Furthermore, in the present invention, it is also possible to erase ROM 1609 by saving, in secondary memory 1607, the content saved by ROM 1609. Furthermore, it is also possible to configure secondary memory unit 1607 of a plurality of memory units sub-secondary schools, with each sub-secondary memory unit storing different information. It is possible to precisely divide the sub-secondary memory units; for example, only tuning information is stored in one of the sub-secondary memory units, the library 2201b of OS 221 is stored in another sub-secondary memory unit, downloaded Java programs are saved in another sub-secondary memory unit, and so on. Furthermore, in the present invention, the downloaded Java programs are saved in the primary memory unit 1607, but it is also possible to save the downloaded Java programs in the secondary memory unit 1608. In case the downloaded Java programs are saved in the primary memory unit 1608, all the saved information disappears when the power is turned off. Further, in the present invention, the parts that are not clearly specified are indicated by the reference hardware configuration example of Figure 17, but the present invention is of course applicable even with a hardware configuration using an adapter, such as in Figure 19. In such a case, devices identified by different numbers of Figure 17 and Figure 19 are described as in Figure 19, using expressions that substitute identification numbers. For example, the CPU 1606 is interpreted as the CPU 1806. Such is the case with Figure 21 and Figure 22. Figure 21 is used as a basic hardware reference configuration, but the present invention is of course applicable to the Figure 22 too. In addition, with the OCAP environment mentioned above, there are two types of services. One is a normal service that exists in association with the PMT, and the other is an abstract service that exists in association with the PMT. The service normal is identical to the service described so far in the present invention, and when the normal service is selected, the tuning, removal of cryptography, video / audio playback and the start of the Java program are executed by the service manager 2204. On the other hand, there is an abstract service that contains only the Java program, and when the abstract service is selected, video / audio playback is not carried out. In addition, the Java program contained in the abstract service is downloaded and started when the abstract service is selected, but there are classes in which the Java program is recorded in the secondary memory unit 1607 at that time. When the Java program is written to the secondary memory unit 1607 once, unless the newer Java program than the recorded Java program can not be downloaded, the Java program is downloaded and started from the secondary memory unit during the selection of services. Furthermore, in the embodiments of the present invention, the service manager 2204 and the recording administrator 3606 are indicated as Java traction programs written in the Java language, executed sequentially by the Java VM 1603, and which they call, through the Java native interface (JNI), other subprograms not written in the Java language, or they can be called. However, the present invention can be applied even when the service manager 2204 and the recording administration 3606 are programs written in a language other than Java language, such as the C language, and executed on the 1606 CPU in the same manner as other subprograms. Furthermore, in the embodiments of the present invention, the storage administration library 3605h is indicated as being included in the Java library 3605h. However, the present invention can be applied even when the storage management library 3605h is not included in the Java library 3605h, is a subprogram written in a language other than the Java language, such as C language, and is called by or calls other Subprograms in a language other than Java. In addition, in the present invention, the "program Java "included in the service is indicated as being a program written in the Java language and executed by the Java VM.However, the present invention is applicable even when the" Java program "included in the service is a program written in a language Although only some exemplary embodiments of this invention have been described in detail above, those skilled in the art will readily appreciate that many modifications to exemplary embodiments are possible without materially departing from the new teachings and advantages of this invention. Accordingly, all of these modifications are intended to be included within the scope of this invention. Industrial Applicability The present invention is based on a transmission reception apparatus, but is applicable in other information devices, such as a cellular telephone, as long as the device has a function of receiving a transmission. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (12)

1. CLAIMS Having described the invention as above, the content of the following claims is claimed as property: 1. A transmission recording apparatus that records and reproduces a transmission wave, characterized in that it comprises: a receiving unit that functions to receive the transmission wave; transmission; an observed data extraction unit that functions to extract, from the transmission wave received by the receiving unit, observed data indicating a content to be viewed; a repeating data extraction unit operating to extract, from the transmission wave received by the receiving unit, an application program and a program table that are repeatedly included in the transmission wave, the program table indicates a list of application programs present in the transmission wave; a recording medium having an area for recording the observed data, the application program and the program table; an observed data recording management unit that functions to record the observed data extracted by the data extraction unit observed in
2. the recording medium; a program recording management unit that functions to set a time stamp to the application program extracted by the repeating data extraction unit in case the extracted application program is different from the application program already recorded in the medium of recording, and that works to record the application program to which the time stamp was set on the recording medium; a table recording management unit that functions to set a timestamp to the program table extracted by the repeating data extraction unit in case the extracted program table is different from the program table already recorded in the recording medium, and that works to record the program table to which the time stamp was set on the recording medium; an information creation unit that functions to create storage management information indicating a recording location for the application program on the recording medium each time the program recording management unit records the application program in the middle of recording; an observed data reproduction unit that works to reproduce the observed data recorded in the
3. recording medium and a program execution unit that functions to read, of the recording location indicated by the storage management information, and to execute the application program with a timestamp corresponding to a time of data reproduction observed, the application program being indicated by the program table with a timestamp corresponding to the playback time. The transmission recording apparatus according to claim 1, characterized in that the program table indicates to the application program that it will be controlled at a time when the program table is received by the receiving unit, and a content of control for the application program. The transmission recording apparatus according to claim 2, characterized in that the information creation unit functions to associate the storage management information with the application program, and store the storage administration information in the storage table. programs recorded on the recording medium, each time the program recording management unit records the application program on the recording medium, and the program execution unit operates for
4. read the application program with the time stamp that corresponds to the playback time of the storage location indicated by the storage management information stored in the program table, and to execute the application program. The transmission recording apparatus according to claim 2, characterized in that the program table also indicates a position in which the application program to be controlled in the transmission wave is present.; the information creation unit functions to create the storage management information associated with the position in the transmission wave in which the application program is present, by time that the program recording management unit records the application program in the recording medium and the program execution unit works to specify the position of the application program that will be controlled which is indicated by the program table, to read the application program with the time stamp that corresponds to the playback time of a recording location indicated by the storage management information associated with the specified position, and to execute the application program.
5. 5. The recording device of transmissions of
6. according to claim 2, characterized in that the repetition data extraction unit functions to extract, from the transmission wave received by the receiver unit, the application program associated with a control content required for the reproduction of between the programs of application indicated in the program table, and the program execution unit operates to read, from a recording position indicated by the storage management information, the application program associated with the content of control required for reproduction from among the application programs with a timestamp that corresponds to the playing time, and to run the application program. The transmission recording apparatus according to claim 1, characterized in that each application program repeatedly included in the transmission wave has identifying information to identify a use of the application program, and has a version of the application program, and the program recording management unit operates to compare the identifying information and version of the application program extracted by the repeating data extraction unit with the identifying information and version of a program of
7. application already recorded in the recording medium, and after judging the respective identifying information and versions as different, to judge that the extracted application program and the recorded application program are different. The transmission recording apparatus according to claim 1, characterized in that the observed data reproduction unit operates to send at least one of video and audio when reproducing the observed data, and the program execution unit operates to execute the application program in sync with at least one of the video and audio aired. The transmission recording apparatus according to claim 1, characterized in that the program table indicates all the application programs included in a transmission wave service. The transmission recording apparatus according to claim 1, characterized in that the repeating data extraction unit further functions to extract, from the transmission wave received by the receiving unit, reproduction position information indicating a position of reproduction of the observed data and is repeatedly included in the transmission wave; and the transmission recording apparatus comprises
8. further: a playback position recording management unit that functions to set a timestamp to the extracted playback position information and record the playback position information to which the time stamp in the medium has been set recording, in the event that the recording position information extracted by the repeating data extraction unit differs from the playback position information already recorded on the recording medium; wherein the observed data reproduction unit operates to, when a reproduction start time is indicated by the reproduction data, isolate the reproduction position corresponding to the reproduction start time indicated based on the reproduction position information to which the time stamp was set, and it works to start the reproduction of the observed data from the indicated reproduction position. A method of recording transmissions for recording and reproducing a transmission wave, characterized in that it comprises: receiving the transmission wave; extract, from the transmission wave received at reception, observed data indicating a content to be seen;
9. repeatedly extracting, from the transmission wave received by the receiving unit, an application program and a program table that are repeatedly included in the transmission wave, the program table indicates a list of application programs present in the transmission wave; record the observed data extracted by the data extraction unit observed in a recording medium; set a time stamp to the application program extracted by the repeated extraction in case the extracted application program is different from the application program already recorded in the recording medium, and record the application program to which the mark was set of time in the recording medium; set a time stamp to the program table extracted by the repeated extraction in case the extracted program table is different from the program table already recorded in the recording medium, and record the program table to which it is fixed the time stamp on the recording medium; creating storage management information indicating a recording location for the application program on the recording medium each time the application program is recorded on the recording medium by the recording;
10. reproducing the observed data recorded in the recording and reading medium of the recording location indicated by the storage management information, and executing the application program with a time stamp corresponding to a time of reproduction of the observed data, the application program being indicated by the program table with a timestamp corresponding to the playing time.
11. 11. A program for recording and reproducing a transmission wave, characterized in that it causes a computer to execute the following stages: receive the transmission wave; extract, from the transmission wave received at reception, observed data indicating a content to be seen; repeatedly extracting, from the transmission wave received by the receiving unit, an application program and a program table that are repeatedly included in the transmission wave, the program table indicates a list of application programs present in the transmission wave; record the observed data extracted by the data extraction unit observed in a recording medium; set a time stamp to the application program

    extracted by repeated extraction in case the extracted application program is different from the application program already recorded on the recording medium, and recording the application program to which the time stamp was set on the recording medium; set a time stamp to the program table extracted by the repeated extraction in case the extracted program table is different from the program table already recorded in the recording medium, and record the program table to which it is fixed the time stamp on the recording medium; creating storage management information indicating a recording location for the application program on the recording medium each time the application program is recorded on the recording medium by the recording; reproducing the observed data recorded in the recording and reading medium of the recording location indicated by the storage management information, and executing the application program with a time stamp corresponding to a time of reproduction of the observed data, the application program being indicated by the program table with a timestamp corresponding to the playing time.
12. 12. The transmission recording apparatus according to claim 1, characterized in that the application program includes several data files; the program recording management unit operates to record the application program extracted by the repeating data extraction unit in case at least one of the data files included in the extracted application program is different from any of the data files recorded on the recording medium; a first data file included in the application extracted from the repeating data extraction unit is recorded in the recording medium, the first data file being different from any data file included in the application program already recorded in the medium of recording, and reference information to identify a data file included in the application program already recorded in the recording medium is recorded in the recording medium, the data file being the same as a second data file included in the application extracted from the repeating data extraction unit.