JP2004328295A - Accumulation/reproduction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast reception/accumulation device in which two programs whose transfer rates are fast such as high vision programs can simultaneously be recorded in an accumulation medium whose exchange is easy but whose transfer rate is comparatively slow. <P>SOLUTION: At least one piece of input data is once accumulated in an HDD. Data are reproduced from the HDD at speed different from that at an input time, and recorded in the accumulation medium whose transfer rate is slow such as an optical disk device. Thus, the two programs can apparently simultaneously be recorded. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a signal storage / playback apparatus, and more particularly to a storage / playback data processing method for storing and playing back program data received by digital broadcasting in storage means.
[0002]
[Prior art]
2. Description of the Related Art In recent years, digital broadcasting has rapidly spread, and BS digital broadcasting services using broadcasting satellites have been provided following CS digital broadcasting using communication satellites. In the future, digital broadcasting services using terrestrial broadcasting are also planned, and it is becoming possible to view a wide variety of contents through digital broadcasting. In digital broadcasting, program data is compressed and digitized, so that programs can be stored in a hard disk device (hereinafter abbreviated as HDD), which is a digital data storage medium conventionally used in PCs (Personal Computers). It has become. In addition, rapid progress of optical disk technology has made it possible to directly record a high-definition digital broadcast high-definition program on a large-capacity optical disk.
[0003]
Since the HDD has a large capacity and a high access speed, two program data are recorded in parallel so that they can be recorded at the same time apparently, or so-called time-shift reproduction can be performed in which recording and reproduction are performed at the same time. While it has good characteristics, it is expensive and the structure cannot be easily changed. The optical disk device is inexpensive and easy to replace, but does not have the same access speed as an HDD. It is 36 Mbps in the case of the latest optical disc, Blue-ray Disc, and cannot cope with simultaneous recording or time-shift reproduction of two programs of a high-vision program having a high transfer rate of about 24 Mbps for one program. Here, as a user's request, there is a strong demand that a desired program be recorded and stored in a medium that can be easily exchanged in real time, and a library be created. It is difficult to meet.
[0004]
With respect to the above, for recording on an optical disc device, for example, Japanese Patent Application Laid-Open No. H10-163,197 discloses a conversion unit for converting a bit rate of an input digital broadcast signal, a control unit for controlling a bit rate conversion amount in the conversion unit, and a conversion unit. There is described a method of providing a recording means for recording a digital broadcast signal on a recording medium at a set bit rate, and reliably recording the input digital broadcast signal on the recording medium by changing the bit rate. In this way, a method is conceivable in which the recording can be performed at the same time as in the HDD by converting the bit rate to a low value and recording the same.
[0005]
[Patent Document 1]
JP 2000-311441 A
[0006]
[Problems to be solved by the invention]
The recording method described in the above-mentioned Patent Document 1 (Japanese Patent Laid-Open No. 2000-31441) does not consider that the image quality is degraded due to the bit rate conversion. For example, there is a demand for recording two high-definition programs on an optical disc simultaneously. In order to respond to the problem, no consideration has been given to the fact that considerable deterioration of the image quality of the recorded program video is inevitable.
[0007]
SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a digital broadcast receiving, storing and reproducing apparatus which can simultaneously record two programs without deteriorating the image quality even when recording on a storage means such as an optical disk whose transfer rate is not as fast as that of an HDD. The purpose is to provide.
[0008]
[Means for Solving the Problems]
The present invention relates to input means for inputting digitized video and audio data, storage means 1 and storage means 2 for storing and reproducing data input to the input means, and storage means 1 and storage means 2. A storage means controller for controlling the input and output of the data, and decoding means for decoding the output data of the storage means 1 and the storage means 2 and outputting video and audio. When the data of the second two systems is input, the first input data is recorded in the storage means 1 at the input rate, and the second input data is recorded in the storage means 2 at the time of recording. Has a configuration in which the storage means 2 is reproduced at a different rate and is recorded in the storage means 1 in parallel with the recording of the first input data. It is possible to simultaneously record two programs without degrading the image quality even.
[0009]
In addition, the path of input data of two or more inputs is controlled and recorded directly in the storage means 1 or temporarily recorded in the storage means 2 and thereafter reproduced at a speed different from that at the time of recording. By recording data in the storage means 1, it is possible to record more programs simultaneously.
[0010]
During data recording, data to be directly recorded in the storage means 1 and data to be recorded in the storage means 2 and then reproduced and recorded in the storage means 1 can be exchanged. As a result, it is possible to flexibly store and reproduce according to the operation desired by the viewer.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a digital broadcast receiving, storing and reproducing apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an embodiment of a digital broadcast receiving, storing and reproducing apparatus according to the present invention.
[0012]
In FIG. 1, reference numerals 10 and 11 denote input terminals of packetized and multiplexed stream data, reference numeral 20 denotes a demultiplexer for separating a specified packet from input stream data, reference numeral 30 denotes a decoder for decoding encoded video and audio, 40 is a graphic processing means for performing processing such as enlargement and reduction of the decoded video signal or superimposing an OSD (On Screen Display) on the video signal, 50 is an output terminal of the video signal subjected to the graphic processing, and 60 is a decoded terminal. An audio signal output terminal; 70, a storage controller for controlling data input / output of a storage unit to be described later; 80, a first storage unit; 90, a second storage unit; 100, a remote controller (not shown); A command input terminal for inputting a command to the digital broadcast receiving / storing / reproducing apparatus according to Control means for controlling the entire digital broadcast receiving storage and reproduction apparatus, it is. The demultiplexer 20, the control means 110, the storage means controller 70, the decoder 30, and the graphic processing means 40 exchange data and control commands via a control bus (not shown).
[0013]
In FIG. 1, data input from a stream data input terminal 10 or a stream data input terminal 11 is input to a demultiplexer 20. It is assumed that the demultiplexer 20 can process a plurality of input data by one or is constituted by a plurality of packet separating means. The input data described in the present embodiment is obtained by multiplexing, in packet units, video data, audio data, data of data broadcast, and various data used for operation control of a receiver, etc., obtained by receiving a digital broadcast. It was done. FIG. 2 shows an example of the input data. In FIG. 2, reference numeral 12 denotes a transport stream (hereinafter abbreviated as TS) in ISO / IEC13818-1 (commonly referred to as the MPEG2 system standard), and is a PAT (Program Association Table) and a PMT (Program Map) which are data used for channel selection and the like. Table 1), NIT (Network Information Table), and packets of video 1, audio 1, video 2, audio 2, etc. constituting a received television program are multiplexed.
[0014]
FIG. 3 shows a program selection procedure, and the operation of program selection will be described. When the user selects a program with a remote controller or the like in the first step, a corresponding command is input from the command input terminal 100 to the control means 110. In the next step, the control means 110 controls the demultiplexer 20 to separate the information of the PAT and transfer it to the control means 110. The PAT stores PMT identification information (Packet ID = PID) included in the input stream. The control means 110 recognizes the PID of the PMT by analyzing the PAT, controls the demultiplexer 20 in the next step to separate the PMT packet, and causes the control means 110 to transfer the packet. The PMT is a packet that stores the PID of a packet in which video and audio of a program are stored, and a different PID is assigned to each program. Therefore, the control means 110 separates and transfers the PMT corresponding to the program selected by the user to the demultiplexer 20, and analyzes this. In the next step, the control means 110 controls the demultiplexer 20 to separate the video and audio packets of the program selected by the user according to the information obtained by analyzing the PMT.
[0015]
Here, when viewing the separated program as it is, video and audio data of the separated information are input to the decoder 30. The decoder 30 decodes the input coded video data and coded audio data, and reproduces the original video and audio signals. The video signal reproduced by the decoder 30 is output from the video output terminal 60 after OSD such as a program guide screen is superimposed on the video signal by the graphic processing means 40 or subjected to processing such as enlargement and reduction as necessary. You. The audio signal reproduced by the decoder 30 is output from an audio signal output terminal 50.
[0016]
The basic operation when the data of the program selected by the user is stored in the storage means 80 or 90 and reproduced will be described below. When storing the program data, unlike the above-described reproduction, it is necessary to store not only the video and audio packets but also information such as PAT and PMT. This is necessary when reproducing the stored program data. When the stored program is reproduced, data relating to the program that has not been stored is not necessary. Conversely, if the data is not stored, it is necessary to select a program in accordance with the data. Only the information related to the video and audio of the selected program. That is, information that is not used such as NIT is not stored, and program-related information such as PAT and PMT is not stored as it is, but the control unit 110 controls the demultiplexer 20 to store the selected program. The TS in which the contents of the packet are rewritten by deleting information other than information necessary for reproduction is accumulated. When the user instructs to store a program, the control unit 110 controls the demultiplexer 20 to output the TS to be stored to the storage unit controller 70. The storage controller 70 adds time information (time stamp) to each packet and records it so that the input TS can be reproduced at the correct time during reproduction. FIG. 4 shows an example of packet data to which a time stamp has been added. In the example of FIG. 4, the time stamp is added before the packet data, but this may be added after. The storage controller 70 stores the TS with the time stamp as shown in FIG. 4 in the storage 80 or the storage 90. Here, the control unit 110 determines the data amount of the program recorded in the storage unit 80 or the storage unit 90, the position of the recorded area on the storage unit 80 or the storage unit 90, and information related to the program, that is, the program name and the date and time of reception. The data is recorded as program designation data in an area of the storage means 80 or 90 different from the program data. Further, as management data of the storage unit 80 or the storage unit 90, a program list used when data recorded in the storage unit 80 or the storage unit 90 occupies the storage unit 80 or the storage unit 90 or when a stored program is reproduced. And so on. It is not always necessary to record the management data in the storage means 80 or the storage means 90. If the digital broadcast receiving / storing / reproducing apparatus has a separate storage medium such as a flash memory having a sufficient storage capacity, the management data is not necessary. May be stored.
[0017]
The operation of reproducing the program data stored as described above will be described below. When the user performs a reproducing operation of the stored program, a reproducing command is input from the command input terminal 100. The control means 110 controls the storage means controller 70 in accordance with the reproduction command to read out the program designation data from the storage means 80 or 90 and analyze the contents. The control means 110 controls the storage means controller 70 based on the data such as the area where the designated program data is stored in accordance with the analyzed contents, and reads out the data stored in the storage means 80 or 90. The read program data is output from the storage controller 70 to the demultiplexer 20 at a predetermined timing in accordance with the time stamp data described above. The demultiplexer 20 separates video / audio data from the input program data, and transfers the data to the decoder 60. The subsequent operation is the same as the operation at the time of reproduction described above. By doing so, the program data can be stored in the storage means 80 or 90 and reproduced.
[0018]
In the above, in the present embodiment, the storage unit 80 is assumed to be an optical disk device, and the storage unit 90 is assumed to be an HDD. If no processing is performed on the data stored in these, it is conceivable that the program data stored by connecting to a PC or the like is illegally copied and used. On the other hand, there is a method of encrypting and recording data as in the example described below. FIG. 5 shows a configuration example of the storage unit controller 70 when the data encryption function is provided. 71 is a time stamp adding means for adding a time stamp to each packet of the input TS, 72 is an encrypting means, 73 is a data input / output controller for controlling data input / output to the storage means 80 or 90, 74 is an encryption / decryption unit for decrypting the encrypted data, 75 is a timing adjustment unit for adjusting the timing of the input data based on the time stamp and outputting it as a TS, 760 is a RAM (Random Access Memory), 76 A RAM controller arbitrates data input / output with each block and manages writing and reading of data to and from the RAM 760. Reference numeral 700 denotes a bus for transferring commands and data between blocks. In FIG. 5, control signals are exchanged between the RAM controller 76 and each block in order to control input / output of data in addition to data. The reason why the RAM controller 76 intervenes in the data transfer between the blocks in the description of FIG. 5 is to arbitrate the data transfer timing between the independently operating blocks.
[0019]
A case where data is stored in the storage unit 80 or the storage unit 90 will be described below. The transport stream input from the demultiplexer 20 or the demultiplexer 21 is input to the time stamp adding means 71, and a time stamp is added to each packet in a format as shown in FIG. . The RAM controller 76 temporarily stores the input data in the RAM 760, and then reads and outputs the data according to a request from the encryption unit 72. The encryption means 72 encrypts the input data according to a predetermined procedure, and outputs the data to the RAM controller 76. The RAM controller 76 temporarily stores the input data in the RAM 760. Then, the data stored in the RAM 760 is output according to a request from the data input / output controller. The data input / output controller 73 outputs the input data to the storage unit 80 or the storage unit 90 for storage. By doing so, the inputted program data can be encrypted and stored.
Next, a procedure for reading data stored in the storage unit 80 or the storage unit 90 will be described. When a data reproduction instruction is given from the control means 110 to the data input / output controller 73 via the bus 700, the data input / output controller 73 controls the storage means 80 or 90 to read the stored data and read the stored data. 76 and stored in the RAM 760. The RAM controller 76 reads and outputs the data stored in the RAM 760 in accordance with a data transfer request from the encryption / decryption means 74. The encryption / decryption unit 74 decrypts the input encrypted data according to a predetermined procedure, decrypts the data before encryption, and outputs the data to the RAM controller 76. The RAM controller 76 temporarily stores the input data in the RAM 760, and reads out and outputs the data from the RAM 760 according to a data transfer request from the timing adjustment unit 75. The timing adjusting means 75 outputs the input data in the form of TS while adjusting the timing in accordance with the time stamp added to the input data.
[0020]
With the configuration and operation described above, the TS input from the demultiplexer 20 can be stored in the storage unit 80 or 90 by managing the time information of each packet and encrypting it. Further, at the time of reproduction, the encrypted data is decrypted, the timing is adjusted according to the time stamp, and the data is output, so that the original TS can be reproduced.
[0021]
The operation in the case where the transport streams of a plurality of Hi-Vision programs are simultaneously input from the demultiplexer 20 to the storage means 80 as the optical disk device and recorded will be described below. The data transfer from the demultiplexer 20 to the storage means controller 70 may be performed by multiplexing and transferring a plurality of data to a single data bus using the configuration shown in FIG. 1, or as shown in FIG. Alternatively, they may be connected by two data buses.
[0022]
The data rate of a high-definition program in satellite digital broadcasting is generally about 24 Mbps. Here, assuming that a Blue-ray Disc is used as the optical disc device, the data transfer rate is 36 Mbps. Therefore, if it is attempted to record two input data in the storage means 80 at the data rate as it is input, the required data rate becomes 48 Mbps, which exceeds 36 Mbps. That is, two input data cannot be recorded simultaneously as it is. Therefore, in the present embodiment, for example, if one of the input data is input data A, the input data A is recorded at the same data rate, that is, 24 Mbps, in the storage means 80 which is an optical disk device. Then, assuming that the other input data is input data B, the input data B is temporarily stored in the storage means 90 which is an HDD. Then, while continuing the recording, the data is reproduced from the storage means 90 at, for example, a transfer rate of 12 Mbps, multiplexed with the input data A, and output to the storage means 80. As described above, the transfer rate of the data output to the storage means 80 as the optical disk is 24 Mbps + 12 Mbps = 36 Mbps, and the data transfer rate of the storage means 80 as the optical disk device can be suppressed to 36 Mbps or less. As a result, two high-vision programs having a high data rate can be simultaneously recorded in the storage means 80 having a limited data transfer rate.
[0023]
In the above, apparently recording and reproduction can be simultaneously performed on data once recorded in the HDD device. The HDD device can realize a data transfer rate of, for example, about 80 Mbps, depending on its configuration, so that it is possible to apparently simultaneously record and play back a Hi-Vision program of about 24 Mbps, In addition to the recording and reproduction and the reproduction at the reproduction speed of 12 Mbps described above, there is a performance in which three data inputs and outputs can be apparently executed simultaneously. Therefore, a program to be recorded in the storage means 80, which is an optical disk device, can be reproduced at 12 Mbps while being recorded once, and can be reproduced at the same rate as that at the time of recording, apparently simultaneously. Special playback such as reverse playback is possible. Here, a case is considered in which the user views one of the high-vision programs while simultaneously recording the two high-definition programs in the storage unit 80, which is an optical disk device. When viewing in real time, desired program data can be directly output from the demultiplexer 20 to the decoder 30 for viewing. On the other hand, in the case of viewing by time-shift reproduction or special reproduction, the program cannot be realized unless it is a program that has been once recorded in the storage means 90 which is an HDD. That is, for example, if the user once stops watching a time-shifted program and tries to time-shift another program, it cannot be realized as it is. In this case, in the present embodiment, the input data to be directly recorded in the storage means 80 and the input data which has been read through the storage means 90 at a reduced transfer rate may be exchanged. That is, the RAM 760 and the data input / output controller 73 described with reference to FIG. 5 are controlled, and the data output to the storage unit 80 and the data output to the storage unit 90 may be exchanged. As a result, the program to be subjected to the time shift reproduction can be switched without affecting the simultaneous recording of the two programs in the storage means 80.
[0024]
In the above description, a program recorded at the input data rate can be recorded simultaneously with the end of the program, but a program transmitted via the storage means 90 which is an HDD is recorded at a rate lower than the input rate. Therefore, even if the program ends, the recording is continued. Therefore, the user may be notified that the recording is continuing by displaying the screen as shown in the example of FIG. 7 by OSD using the graphic means 40 of FIG. Alternatively, the notification may be performed by turning on a notification lamp (not shown) controlled by the control unit 110. By doing so, an easy-to-use digital broadcast receiving, storing, and reproducing apparatus can be realized. Further, when the recording of the program directly recorded on the storage means 80 which is a direct optical disk is completed, the reproduction speed from the HDD can be increased to, for example, 36 Mbps. This makes it possible to finish recording the program at a high speed, or catch up to a real-time state when the program continues.
[0025]
In the above description, a case has been described where one program is directly recorded in the storage unit 80 which is an optical disk device. However, both programs are temporarily recorded in the storage unit 90 which is an HDD and then recorded in the storage unit 80. You may fix it. In this case, the data transfer rate may be equal to 18 Mbps for all programs, or may be controlled based on the length of the program time included in the program information at the time of reception. Thus, the reproduction speed from the storage means 90 which is an HDD may be different. By doing so, even when switching the program to be time-shifted reproduced, the switching can be performed without changing the storage medium of the recording destination.
[0026]
In the above description, the case where data of two programs are handled at the same time has been described. However, by allowing the demultiplexer 20 and the storage means controller 70 to handle three or more input data, the data of three or more programs can be handled. Similar effects can be obtained even when handling. Even in this case, the basic configuration does not change, and only the number of data to be handled at the same time increases. Therefore, the same processing can be realized for three or more data processing.
[0027]
In the above description, a case has been described in which all data recorded in the storage unit 80 as the optical disk device is broadcast reception data. On the other hand, it is not always necessary to handle only the broadcast reception data. For example, one may be the broadcast reception data and the other may be the data already recorded in the storage unit 90 which is the HDD. In this case, while the broadcast reception data is stored in the storage unit 80 as the optical disk device, the data recorded in the storage unit 90 as the HDD is recorded in parallel. Thus, for example, a continuous program broadcasted weekly is temporarily stored in the storage unit 90, which is an HDD, and after recording for several weeks, real-time broadcast is recorded in the storage unit 80, which is an optical disk device, and the program is stored in the HDD in the past. The program data stored in a certain storage means 90 can be recorded in parallel in the storage means 80 which is an optical disk device. That is, it is possible to copy or move the data of the storage means 90 which is an HDD to the storage means 80 which is an optical disk device without worrying that recording is being performed. As a result, it is possible to obtain an easy-to-use digital broadcast receiving / storage / playback apparatus such that an optical disc as a library can be created while recording a broadcast reception program.
[0028]
In the above, the case where the data reproduced from the storage means 90 which is the HDD is recorded in the storage means 80 which is the optical disk device has been described. The recording to 90 may be performed simultaneously. In other words, while the broadcast reception data is recorded in the storage means 80 as the optical disk device, the data already recorded in the storage means 80 as the optical disk device is transferred at a total transfer rate of the storage means 80 as the optical disk device. The data may be reproduced so as to be within the range of the rate and recorded in the storage means 90 which is an HDD.
[0029]
As described above, according to the present invention, two or more pieces of TS data whose total transfer rate at the time of receiving a broadcast exceeds a transfer rate that can be processed can be simultaneously recorded on the optical disc. Even if it is desired to record the data, there is no need to temporarily record all the data in the HDD and then transfer the data to the optical disk again. Further, even when a plurality of programs are simultaneously stored on an optical disc having a low transfer rate, functions such as simultaneous recording of two high-definition programs and time shift reproduction can be realized. Can be realized.
[0030]
Also, while the broadcast reception data is being recorded on the optical disk, the reproduced data recorded on the HDD can be recorded in parallel, or the recording and reproduction on the optical disk can be performed simultaneously, so that the recording of the received data is Therefore, it is possible to perform a process such as mutual movement of data recorded on the optical disk and the HDD without worrying about the above, so that usability can be improved.
[0031]
【The invention's effect】
According to the present invention, it is possible to provide an easy-to-use storage / playback apparatus for a user.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of a digital broadcast receiving, storing and reproducing apparatus according to the present invention.
FIG. 2 is a diagram showing an example of a packet arrangement of a stream to be processed in the present invention.
FIG. 3 is a diagram showing a program selection procedure of the digital broadcast receiving, storing and reproducing apparatus according to the present invention.
FIG. 4 is a diagram showing an example of a stored data format in a digital broadcast receiving, storing and reproducing apparatus according to the present invention.
FIG. 5 is a diagram showing a configuration example of a storage unit controller in the digital broadcast reception storage / playback apparatus according to the present invention.
FIG. 6 is a diagram showing an embodiment of a digital broadcast receiving, storing and reproducing apparatus according to the present invention.
FIG. 7 is a diagram showing an example of a display screen of the digital broadcast receiving, storing and reproducing apparatus according to the present invention.
[Explanation of symbols]
10, 11 ... stream input terminal
20 ... Demultiplexer
30 ... decoder
40 Graphic processing means
50 ... Video signal output terminal
60 ... Audio signal output terminal.
70 ... storage means controller
71: time stamp adding means
72 ... Encryption means
73 ・ ・ ・ Data input / output controller
74 ・ ・ ・ Encryption / decryption means
75 ・ ・ ・ Timing adjustment means
76 RAM controller
760 ・ ・ ・ RAM
80, 90 ... storage means
100 command input terminal
110 ・ ・ ・ Control means

Claims (6)

Input means for inputting digitized video and audio data,
A storage unit 1 and a storage unit 2 for storing and reproducing data input to the input unit;
A storage controller for controlling the input and output of data to and from the storage 1 and the storage 2;
Decoding means for decoding output data of the accumulation means 1 and the accumulation means 2 and outputting video and audio,
The storage means controller records the first input data in the storage means 1 at the input rate when the first and second systems of data are input at the same time, and stores the second input data in the storage means. A storage / playback apparatus characterized in that, after recording in said means (2), said storage means (2) is reproduced at a rate different from that at the time of recording and recorded in said storage means (1) in parallel with recording of said first input data. Input means for inputting digitized video and audio data,
A storage unit 1 and a storage unit 2 for storing and reproducing data input to the input unit;
A storage controller for controlling the input and output of data to and from the storage 1 and the storage 2;
Decoding means for decoding output data of the accumulation means 1 and the accumulation means 2 and outputting video and audio,
When two or more systems of data are input at the same time, the storage means controller records at least one input data at the input rate in the storage means 1, and stores at least one other input data in the storage means. 2. Recording / reproducing apparatus which reproduces data at a rate different from the rate at the time of recording after recording in the recording means 2 and records the reproduced data in the storage means 1 in parallel with recording of other input data. 3. The storage controller according to claim 1, wherein the storage controller exchanges data to be directly recorded in the storage during data recording and data to be recorded in the storage and then reproduced and recorded in the storage. A storage and reproduction apparatus characterized by the above-mentioned. 3. The storage unit controller according to claim 1, wherein the storage unit controller changes a reproduction speed when the data is once recorded in the storage unit 2 and then reproduces the data and a recording speed of the reproduced data to the storage unit 1 during recording. Characteristic storage and playback device. Input means for inputting digitized video and audio data,
A storage unit 1 and a storage unit 2 for storing and reproducing data input to the input unit;
A storage controller for controlling the input and output of data to and from the storage 1 and the storage 2;
Decoding means for decoding output data of the accumulation means 1 and the accumulation means 2 and outputting video and audio,
When the first and second two-system data are input at the same time, the storage means controller records the first and second input data in the storage means 2 and then stores the data at a different rate from the input rate. A storage and reproduction apparatus for reproducing first and second two data in parallel and recording the reproduced data in the storage means 1 in parallel. 6. The storage unit controller according to claim 5, wherein the storage unit controller sets a reproduction speed when the data is once recorded in the storage unit 2 and then reproduced based on a data time length of each of the two input data. Digital broadcast receiving, storing and reproducing device.

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