JPH09247603A - Digital broadcast receiving system - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] Digital broadcasting includes a plurality of information tables, and information necessary for recording and reproducing scattered in various information tables is easily extracted, and recording and reproducing are performed even when operation is discontinuous. Make sure that there are no failures in the operation of the device or receiver, especially when generating the system clock. SOLUTION: Information necessary for recording / reproduction, particularly information indicating a bit rate of a program of a digital broadcast signal, a broadcast start date / time, a broadcast time length, a program name, a recording channel name, and a type of each stream of the digital broadcast signal. To extract. Then, as a recording / reproducing information table, it is multiplexed with a digital television signal in a predetermined table format. Also, information about discontinuity points is multiplexed in the information table.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a digital broadcast receiving system having a receiver and a recording / reproducing apparatus, and particularly to a digital broadcasting system which facilitates acquisition of information necessary for recording / reproducing and minimizes breakdown. It is a broadcast receiving system.

[0002]

5 and 6 are block diagrams showing the configuration of a conventional digital broadcast receiving system. In the figure, the digital broadcast receiving system includes a receiver 2 and a recording / reproducing apparatus 3.
And a monitor 4 is connected to the receiver 2. The receiver 2 is a digital broadcast from the outside, for example MPE
The image signal compressed by G2 is received.
As shown in FIG. 3, a reception demodulation unit 11 for receiving and demodulating a digital broadcast, a packet filter 12, a controller 13, an information table extractor 14, a program selection information acquisition unit 15, a system clock generator 16, a changeover switch 17, a demultiplexer 18, Audio decoder 19, video decoder 20, text decoder 21, and digital interface 22
have.

On the other hand, the recording / reproducing apparatus 3 is for recording and reproducing the inputted digital broadcast signal, and as shown in FIG. 6, the digital interface 3 connected to the receiver 2 is used.
1, information table extractor 32, system clock generator 33, controller 34, deck unit 35, buffer 36
It is comprised including.

The operation of the digital broadcast receiving system will be described below. The receiver 2 first demodulates the received digital broadcast signal by the reception demodulation unit 11. The system clock generator 16 refers to a reference signal for clock recovery called PCR included in the MPEG2 transport packet to generate a system clock 27 MHz of the receiver. The information table extractor 14 is an NIT that is an information table relating to a network that is multiplexed and transmitted in a digital broadcast signal according to the MPEG2 system.
(Network Information Table) and an information table regarding each program of each channel, that is, a PAT (Program Association Table) that is information of the entire transmitted program,
PMT, which is information about the packet structure and the like for each program
(Program Mapping Table) and EIT (Event Information Table) which is detailed information of each program are extracted from the digital broadcast signal. The controller 13 thus informs the user of the information on the program in the signal from the table information. The monitor 4 presents the information to the user.

When the user designates a specific program, the controller 13 switches the changeover switch 17 to the reception / demodulation section 11, and instructs the demultiplexer 18 to select a packet of the digital broadcast signal based on the table information. According to the instruction, the demultiplexer 18 disassembles the packet format into the audio decoder 19 and outputs the audio data bit stream to the audio decoder 19.
The bit stream of the video data to the video decoder 20,
The bit stream of the text data is sent to the text decoder 21, respectively. Each of the decoders 19 to 21 decodes the data and reproduces the program on the monitor 4.

As one method of realizing recording, there is a method of designating a packet of the selected program by the controller 13, selecting the designated packet by the packet filter 12 and outputting the packet to the digital interface 22. When the user selects a program to be recorded by the remote control device based on the information about the program, the controller 13 inputs this selection input via the program selection information acquisition unit 15. The controller 13 specifies the packet of the program to be recorded by the table information, and the packet filter 12 selects the specified packet. Then, the digital television signal in which the packet is selected is recorded / reproduced by the recording / reproducing apparatus 3 via the digital interface 22.
Is output to

When the recording / reproducing apparatus 3 receives a digital television signal via the digital interface 31, the information table extractor 32 extracts an information table from the signal. The system clock generator 33 refers to the PCR included in the MPEG2 transport packet from the extracted information table to generate the system clock 27 MHz of the recording / reproducing apparatus 3. Then, it is recorded on the recording medium by the deck unit 35.

On the other hand, when reproducing the program recorded in the recording / reproducing apparatus 3, the user inputs the reproduction to the controller 34. Then, the recording / reproducing apparatus 3 reproduces the digital signal of the program from the recording medium by the deck section 35, performs operations such as demodulation and error correction, and then performs the digital interface 31.
Output to

The receiver 2 has a digital interface 22.
When the digital television signal is received via the, the information table extractor 14 extracts the information table.
The system clock generator 16 uses this information table to generate M
The system clock 27 MHz of the receiver 2 is generated by referring to the PCR included in the PEG2 transport packet. Further, the controller 13 switches the changeover switch 17 to the digital interface 22 side to give the reproduced television signal to the demultiplexer 18. The demultiplexer 18 separates this, and each decoder 19-2
1 is sent, and the contents are decoded and reproduced and displayed on the monitor 4.

[0010]

However, in such a conventional configuration, information necessary for recording and reproduction, particularly the bit rate of the program of the digital broadcast signal to be transmitted, the broadcast start date and time, the broadcast time length, and the program name. , Information indicating the channel name to be transmitted and the type of each stream of the digital broadcasting signal is scattered in various information tables, and the positions of descriptors in the tables are indefinite, making it difficult to extract and obtain information. there were.

Further, the PCR value due to channel switching or program switching of the receiver becomes discontinuous, and the recording / reproducing apparatus also becomes discontinuous when switching from normal reproduction to high-speed reproduction or the like. If such a discontinuity occurs, there is a drawback in that the operations of the recording / reproducing apparatus and the receiver, particularly the operation of system clock generation, are broken.

In view of the above points, the present invention provides information necessary for recording / reproduction, in particular, a bit rate of a program of a digital broadcast signal to be transmitted, a broadcast start date / time, a broadcast time length, a program name, a channel name to be transmitted and a digital broadcast. It is an object of the present invention to obtain a system in which it is easy to extract and obtain information indicating the type of each signal stream. An object of the present invention is to obtain a system that minimizes the operation of the recording / reproducing apparatus and the receiver, particularly the breakdown at the time of generating the system clock, by multiplexing the information on the discontinuity points in the information table.

[0013]

According to the invention of claim 1 of the present application, a receiver for receiving a digital broadcast signal and at least a part of the digital broadcast signal connected to the receiver and received by the receiver are provided. In a digital broadcast receiving system having a recording and reproducing device which records and reproduces the recorded digital broadcast signal and outputs it to the receiver, the receiver has a predetermined format, An information table relating to a network transmitted in a multiplexed manner and an information table extracting means for extracting an information table relating to a program of each channel from the digital broadcast signal; and each of the information tables extracted by the information table extracting means. Of the information, an information table relating to a program recorded in the recording / reproducing apparatus has the predetermined format. Anda recording reproduction information table generating means for generating as a new recording reproduction information table, and is characterized in that outputs the multiplexed into the recording and reproducing apparatus in the digital broadcast signal.

According to a second aspect of the present invention, the recording / reproducing information table generating means replaces the information table relating to the network with the recording / reproducing information table.

In the invention of claim 3 of the present application, the recording / reproducing information table generating means includes a program bit rate of a digital broadcast signal to be transmitted, a broadcast start date and time, a broadcast time length,
It is characterized by generating information including at least a part of a program name and a channel name.

According to the invention of claim 4 of the present application, the recording / reproducing information table generating means generates information including information indicating the type of each stream of the digital broadcast signal to be transmitted.

According to the invention of claim 5 of the present application, a receiver for receiving a digital broadcast signal, and at least a part of the digital broadcast signal connected to the receiver and received by the receiver are recorded and recorded. In a digital broadcast receiving system having a recording / reproducing device for reproducing a digital broadcast signal and outputting it to the receiver, the receiver is
A discontinuity information generating unit that detects discontinuity in a digital broadcast signal output to the recording / reproducing device and generates discontinuity information for indicating the location of the discontinuity, and has a predetermined format Information table rewriting means for multiplexing in the digital broadcast signal as table information, and outputting the multiplexed digital broadcast signal to the recording / reproducing apparatus.

In the invention of claim 6 of the present application, the discontinuity information generating means generates discontinuity information indicating that the channel of the digital broadcast to be received or the program to be transmitted has been switched. is there.

According to the invention of claim 7 of the present application, a receiver for receiving a digital broadcast signal, and at least a part of the digital broadcast signal connected to the receiver and received by the receiver are recorded and recorded. In a digital broadcast receiving system having a recording / reproducing device that reproduces a digital broadcasting signal and outputs the signal to the receiver, the recording / reproducing device determines that a discontinuity of the reproduced signal occurs when the recorded signal is reproduced. Discontinuity information rewriting means for detecting, and multiplexing the discontinuity information for indicating the location where the discontinuity has occurred in the digital broadcast signal as table information having a predetermined format, and receiving the digital broadcast signal It is characterized by outputting to a machine.

In the invention of claim 8 of the present application, the discontinuity information rewriting means multiplexes the switching of the reproduction speed as discontinuity information in the digital broadcast signal when the reproduction speed from the recording medium is switched during reproduction. And output to the receiver.

According to a ninth aspect of the present invention, a receiver for receiving a digital broadcast signal, and at least a part of the digital broadcast signal connected to the receiver and received by the receiver are recorded and recorded. In a digital broadcast receiving system having a recording / reproducing device for reproducing a digital broadcast signal and outputting it to the receiver, the receiver is
When discontinuity occurs in the digital broadcast signal output to the recording / reproducing apparatus, the discontinuity information indicating the location of the discontinuity is transmitted, and the recording / reproducing apparatus receives the discontinuity information. Is recorded together with the digital broadcast signal in a predetermined format capable of indicating a location where discontinuity has occurred.

According to a tenth aspect of the present invention, a receiver for receiving a digital broadcast signal, and at least a part of the digital broadcast signal connected to the receiver and received by the receiver are recorded and recorded. In a digital broadcast receiving system having a recording / reproducing device for reproducing a digital broadcasting signal and outputting it to the receiver, the receiver is a portion where discontinuity occurs in the digital broadcasting signal reproduced from the recording / reproducing device. When the discontinuity information for indicating is included, the digital broadcast signal is characterized by having a controller for performing processing for reducing a failure due to discontinuity.

In the invention of claim 11 of the present application, when the controller receives discontinuity information indicating a portion where discontinuity occurs in the digital broadcast signal output from the recording / reproducing apparatus, the controller outputs the digital broadcast signal to the digital broadcast signal. On the other hand, the clock reference signal is reloaded and a part of the information table is reloaded.

According to a twelfth aspect of the present invention, a receiver for receiving a digital broadcast signal and at least a part of the digital broadcast signal connected to the receiver and received by the receiver are recorded and recorded. In a digital broadcast receiving system having a recording / reproducing device for reproducing a digital broadcasting signal and outputting it to the receiver, the receiver receives the digital broadcasting signal outputted from the recording / reproducing device and receives the received digital broadcasting signal. An information table extracting means for extracting an information table from the signal, and a controller for identifying the program in the digital broadcast signal based on the information in the information table and for identifying each stream are provided. .

In the invention of claim 13 of the present application, the information table extracting means of the receiver extracts the information table rewritten at the time of reception, recording or reproduction from the digital broadcast signal received from the recording / reproducing apparatus. It is characterized by doing.

According to the fourteenth aspect of the present invention, the information table extracting means of the receiver selects from the information table relating to the original network at the time of receiving, recording or reproducing from the digital broadcast signal received from the recording / reproducing apparatus. It is characterized in that the rewritten information table is extracted.

According to a fifteenth aspect of the present invention, a receiver for receiving a digital broadcast signal and at least a part of the digital broadcast signal connected to the receiver and received by the receiver are recorded and recorded. In a digital broadcast receiving system having a recording / reproducing apparatus for reproducing a digital broadcasting signal and outputting it to the receiver, rate information about the digital broadcasting signal sent by the receiver to the recording / reproducing apparatus or each of the digital broadcasting signals. When the information on the stream rate is not transmitted, the recording device records at the maximum recordable rate.

[0028]

1 and 2 are block diagrams showing the configuration of a digital broadcast receiving system according to an embodiment of the present invention. In this embodiment, the same parts as those in the conventional example described above are designated by the same reference numerals. As in the conventional example, the digital broadcast receiving system is configured to include a receiver 2 and a recording / reproducing device 3, and a monitor 4 is connected to the receiver 2. As shown in FIG. 1, the receiver 2 includes a reception demodulator 11, a packet filter 12, a controller 23, and an information table extractor 1.
4, program selection information acquisition device 15, system clock generator 16, changeover switch 17, demultiplexer 18, audio decoder 19, video decoder 20, text decoder 2
1, having the digital interface 22 is similar to the conventional example. In addition to this, in the present embodiment, it is detected that the information table rewriter 24 that rewrites the information table obtained from the packet filter 12 and the demodulated signal obtained from the reception demodulation unit 11 are discontinuous, and the discontinuity information is obtained. And a recording / reproducing information table generator 26 for generating a recording / reproducing information table described later.

On the other hand, the recording / reproducing apparatus 3 has a digital interface 31 and an information table extractor 3 as shown in FIG.
2. It has a system clock generator 33, a deck section 35, and a buffer 36. In addition to this, a PCR rewrite device 37 that rewrites PCR, a discontinuous information rewrite device 38 that rewrites discontinuous information, and a discontinuous information Discontinuity information detector 3 to detect
9, a controller 40 and a display 41 for displaying its operating state.

The operation of the digital broadcast receiving system will be described below. The receiver 2 first demodulates the received digital broadcast signal by the reception demodulation unit 11. Information table extractor 14
Is an information table NIT (Network Information Table) relating to a network that is multiplexed and transmitted in a digital broadcasting signal according to the MPEG2 system, and an information table relating to programs on each channel, that is, information on the entire transmitted programs. A PAT (Program Associat
Ion Table), PMT (Program Mapping Table) that is information regarding the packet structure of each program, and EIT (Event Information Table) that is detailed information about each program.
Is extracted from the digital broadcast signal. FIG. 3 shows an example of the extracted information table. The system clock generator 16 selects the MPE from the extracted information table.
A system clock 27 MHz used in the receiver 2 is generated by referring to a clock recovery reference signal called PCR included in the G2 transport packet.

The controller 23 retrieves information about the program in the signal from the extracted information table and informs the user. The subsequent process of directly demodulating the received digital broadcast signal and displaying it on the monitor 4 is the same as that of the conventional example, and therefore its explanation is omitted.

Next, the operation during recording will be described. The user selects a program to be recorded, and the program selection information acquisition unit 15
When the program name or the like is input by, the controller 23 specifies the packet of the program to be recorded in the packet filter 12 based on the table information. The packet filter 12 selects a designated packet and outputs it to the digital interface 22. Further, the controller 23 uses the information table extractor 1
Of the information in each information table extracted by 4,
Especially, the bit rate of the program of the digital broadcast signal recorded from the descriptor in the PMT or EIT, the broadcast start date and time,
The broadcast time length, program name, and recording channel name are extracted. Also, from the descriptor of PMT or NIT, information indicating the type of each stream of the digital broadcast signal to be recorded,
For example, NIT service_list_descriptor or PMT
Extract data_component_descriptor.

The recording / playback information table generator 26 uses the descriptors and information extracted by the controller 23 as MPs.
EG2 transport packet format and predetermined MPE
The recording / reproducing information table is generated in the table format having the table ID of G2. FIG. 4 shows the information table A of FIG.
An example of a recording / reproducing information table in which the information extracted from C is collected is shown. The recording / reproducing information table thus generated is rewritten by the information table rewriter 24 and sent to the recording / reproducing apparatus 3 through the digital interface 22 together with the digital broadcast signal.

While receiving a digital television signal for recording, a discontinuity such as system clock generation may occur due to an operation such as channel switching or program switching in the receiver 2. Discontinuous information generator 25
Detects such discontinuity and generates discontinuity information.
Then, the discontinuity information is input to the information table rewriter 24 and multiplexed on the recording / reproducing table as shown in FIG.

The information table rewriter 24 replaces the extracted information table with the recording / reproducing information table that generated NIT. Also, the PAT and PMT are rewritten so that only the program and packet information selected by the packet filter are described.

Further, at a place other than the NIT, if there is an interval for inserting transport packets without collision, particularly near the above-mentioned discontinuity, a recording / reproducing table may be inserted at that portion. . However, if a large number of recording / reproducing tables are inserted separately, the rate required for recording will increase, so care must be taken in comparison with the rate of the recording medium. The digital television signal subjected to the packet selection and table rewriting operations is output to the recording / reproducing apparatus 3 via the digital interface 22.

When the recording / reproducing apparatus 3 receives a digital television signal from the digital interface 31, the information table extractor 32 extracts information tables including a recording / reproducing information table.

The controller 40 selects, from the extracted information table, the bit rate of the program of the received digital broadcast signal, the broadcast start date and time, the broadcast time length, the program name,
Extract the channel name to record.

The system clock generator 33 is MPEG2.
The system clock 27 MHz of the recording / reproducing apparatus 3 is generated by referring to the PCR included in the transport packet of No. The discontinuity information detector 39 monitors whether or not discontinuity information is included in the information table of the digital video signal,
If the information table contains discontinuity information,
Immediately, the information table extractor 32, the system clock generator 33, and the controller 40 are notified, and the PCR, PAT, and PMT are reloaded, so that the breakdown due to the clock discontinuity can be minimized.

The controller 40 sets the recording bit rate of the recording / reproducing apparatus 3 from the information in the information table, and the deck section 35 performs operations such as error correction and modulation to record on the recording medium.

If there is no information on the bit rate extraction in the information table and the recording bit rate cannot be set, the controller 40 sets the mode to the maximum recording bit rate of the recording / reproducing apparatus 3 and records it. At this time, the occupancy of the buffer 36 is monitored, and if the rate of the received signal exceeds the recording rate and overflows from the buffer 36, the user is informed accordingly.

On the other hand, at the time of reproduction, the recording / reproduction device 3 demodulates the reproduction signal from the recording medium by the deck unit 35, performs operations such as error correction, and outputs it to the digital interface 31. At this time, when the operation mode is changed, for example, normal reproduction, high-speed reproduction, rewinding reproduction, slow reproduction, etc., the PCR is rewritten by the PCR rewriting device 37 to the correct value and recorded by the discontinuous information rewriting device 38. Information indicating discontinuity is added to the reproduction information table.

The receiver 2 has a digital interface 22.
When the digital television signal is received from the information table extractor 14, the information table extractor 14 extracts the information table including the recording / reproducing information table.

The controller 23 selects the bit rate of the program of the received digital broadcast signal from the information table,
The broadcast start date / time, broadcast time length, program name, and channel name to be reproduced are extracted. Further, the changeover switch 17 is changed over to the digital interface 22 side.

The system clock generator 16 is MPEG2.
The system clock 27 MHz of the receiver 2 is generated by referring to the PCR contained in the transport packet of When discontinuity information is included in the information table, PCR, PAT, and PMT are immediately reloaded, so that the breakdown due to clock discontinuity can be minimized.
Alternatively, the system clock generation by PCR may be stopped, and 27 MHz, which is a free-running clock, may be generated and switched to operate. If it is known in advance that a self-running clock will be generated, it is not necessary to correctly replace the PCR when the recording / reproducing apparatus 3 reproduces and outputs.

Further, the controller 23 separates the received television signal by the demultiplexer 18 based on the extracted information, particularly the type of each stream, and each decoder 1
It is sent to 9 to 21 for decoding and reproduction. In particular, when reproducing a data signal stream such as a text, it is possible to easily separate and reproduce by having the type information of each stream.

[0047]

As described above, according to the present invention, in a program for recording a digital television signal, information necessary for recording / reproducing in the recording / reproducing information table, particularly, the bit of the program of the digital broadcasting signal to be recorded. Information indicating the rate, the broadcast start date / time, the broadcast time length, the program name, the channel name to be transmitted, and the type of each stream of the digital broadcast signal is collected and multiplexed on a digital television signal in a predetermined table format. This facilitates extraction and acquisition of information in the subsequent processing. In particular, there is also an advantage that the data rate does not change by substituting NIT, which is unnecessary during recording and reproduction.

Further, by multiplexing the information about discontinuity in the information table, the operation of the recording / reproducing apparatus and the receiver,
In particular, it is possible to obtain the effect that the breakdown at the time of generating the system clock can be minimized.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a receiver of a digital broadcast receiving system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a recording / reproducing apparatus of the digital broadcast receiving system according to the embodiment of the present invention.

FIG. 3 is a diagram showing an example of an information table included in a received television signal according to the present embodiment.

FIG. 4 is a diagram showing an example of a recording / reproducing information table according to the present embodiment.

FIG. 5 is a block diagram showing a configuration of a receiver of a conventional digital broadcast receiving system.

FIG. 6 is a block diagram showing a configuration of a recording / reproducing apparatus of a conventional digital broadcast receiving system.

[Explanation of symbols]

 2 receiver 3 recording / reproducing apparatus 4 monitor 11 reception demodulation unit 12 packet filter 13 controller 14 information table extractor 15 program selection information acquisition unit 16 system clock generator 17 changeover switch 18 demultiplexer 19 audio decoder 20 video decoder 21 text decoder 22 Digital interface 23 Controller 24 Information table rewriter 25 Discontinuous information generator 26 Recording / reproducing information table generator 31 Digital interface 32 Information table extractor 33 System clock generator 34 Controller 35 Deck section 36 Buffer 37 PCR rewriter 38 Discontinuous Information rewriter 39 Discontinuous information detector 40 Controller 41 Display

Claims (15)

[Claims] 1. A receiver for receiving a digital broadcast signal, recording at least a part of the digital broadcast signal connected to the receiver and received by the receiver, and reproducing the recorded digital broadcast signal. In the digital broadcast receiving system having a recording / reproducing device for outputting to the receiver, the receiver has a predetermined format, and an information table regarding a network that is multiplexed and transmitted in the digital broadcast signal, And an information table extracting means for extracting an information table regarding programs of respective channels from the digital broadcast signal, and a program recorded in the recording / reproducing apparatus among information in the information tables extracted by the information table extracting means. The information table is newly created as a recording / playback information table having the predetermined format. Recording reproduction information and the table generation means, comprising a digital broadcast receiving system and outputs multiplexed in the recording and reproducing apparatus in the digital broadcast signal. 2. The digital broadcast receiving system according to claim 1, wherein the recording / reproducing information table generating means replaces the information table relating to the network with the recording / reproducing information table. 3. The recording / reproducing information table generating means is a bit rate of a program of a digital broadcast signal to be transmitted,
2. The digital broadcast receiving system according to claim 1, wherein information including at least a part of a broadcast start date / time, a broadcast time length, a program name, and a channel name is generated. 4. The digital broadcast receiving system according to claim 1, wherein the recording / reproducing information table generating means generates information including information indicating a type of each stream of a digital broadcasting signal to be transmitted. 5. A receiver for receiving a digital broadcasting signal, recording at least a part of the digital broadcasting signal connected to the receiver and received by the receiver, and reproducing the recorded digital broadcasting signal. In a digital broadcast receiving system having a recording / reproducing device for outputting to the receiver, the receiver detects that discontinuity has occurred in a digital broadcasting signal to be outputted to the recording / reproducing device, and the discontinuity occurs. A discontinuity information generating means for generating discontinuity information for indicating a different location, and an information table rewriting means for multiplexing in the digital broadcast signal as table information having a predetermined format,
A digital broadcast receiving system characterized by outputting the multiplexed digital broadcast signal to the recording / reproducing apparatus. 6. The digital broadcasting according to claim 5, wherein the discontinuity information generating means generates discontinuity information indicating that the channel of the digital broadcast to be received or the program to be transmitted has been switched. Receiving system. 7. A receiver for receiving a digital broadcast signal, recording at least a part of the digital broadcast signal connected to the receiver and received by the receiver, and reproducing the recorded digital broadcast signal. In the digital broadcast receiving system having a recording / reproducing device for outputting to the receiver, the recording / reproducing device detects that a discontinuity of a reproduced signal has occurred when reproducing a recorded signal, and the discontinuity is detected. Discontinuous information rewriting means for multiplexing, in the digital broadcast signal, the discontinuous information indicating the generated location as table information having a predetermined format, and outputting the digital broadcast signal to the receiver. And digital broadcasting receiving system. 8. The discontinuity information rewriting means multiplexes the switching of the reproduction speed as discontinuity information in the digital broadcast signal and outputs it to the receiver when the reproduction speed from the recording medium is switched during reproduction. The digital broadcast receiving system according to claim 7, wherein 9. A receiver for receiving a digital broadcast signal, recording at least a part of the digital broadcast signal connected to the receiver and received by the receiver, and reproducing the recorded digital broadcast signal. In a digital broadcast receiving system having a recording / reproducing device for outputting to the receiver, the receiver has the discontinuity when discontinuity occurs in a digital broadcasting signal to be outputted to the recording / reproducing device. It is for transmitting discontinuity information indicating a portion, and the recording / reproducing apparatus records the received discontinuity information together with the digital broadcast signal in a predetermined format capable of indicating a portion where discontinuity occurs. A digital transmission / reception system characterized by being present. 10. A receiver for receiving a digital broadcast signal, recording at least a part of the digital broadcast signal connected to the receiver and received by the receiver, and reproducing the recorded digital broadcast signal. In the digital broadcast receiving system having a recording / reproducing device for outputting to the receiver, the receiver is discontinuity information for indicating a portion where discontinuity occurs in the digital broadcasting signal reproduced from the recording / reproducing device. And a controller for performing processing for reducing the breakdown due to discontinuity with respect to the digital broadcast signal. 11. The controller reloads the clock reference signal for the digital broadcast signal when receiving the discontinuity information indicating the location of the discontinuity in the digital broadcast signal output from the recording / reproducing apparatus. 11. The digital broadcast receiving system according to claim 10, wherein reloading of a part of the information table is performed. 12. A receiver for receiving a digital broadcast signal, recording at least a part of the digital broadcast signal connected to the receiver and received by the receiver, and reproducing the recorded digital broadcast signal. A recording / reproducing apparatus for outputting to the receiver, wherein the receiver receives the digital broadcasting signal output from the recording / reproducing apparatus, and extracts an information table from the received digital broadcasting signal. A digital broadcast receiving system, comprising: an information table extracting means for controlling the program, and a controller for identifying a program in the digital broadcast signal and each stream based on the information in the information table. 13. The information table extracting means of the receiver extracts an information table rewritten at the time of reception, recording or reproduction from a digital broadcast signal received from the recording / reproducing apparatus. The digital broadcast receiving system according to claim 12. 14. The information table extracting means of the receiver extracts an information table rewritten from the information table relating to the original network at the time of reception, recording or reproduction from the digital broadcast signal received from the recording / reproducing apparatus. 13. The digital broadcast receiving system according to claim 12, wherein the system is a digital broadcast receiving system. 15. A receiver for receiving a digital broadcast signal, recording at least a part of the digital broadcast signal connected to the receiver and received by the receiver, and reproducing the recorded digital broadcast signal. In a digital broadcast receiving system having a recording / reproducing device for outputting to the receiver, the receiver transmits rate information about a digital broadcast signal sent to the recording / reproducing device or information about a rate of each stream in the digital broadcast. If not, the recording device records at the maximum recordable rate.