JP3513036B2 - Broadcast signal receiver - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast signal receiving apparatus for receiving a digital broadcast signal transmitted via, for example, a broadcasting satellite, and demodulating and correcting the error.

[0002]

2. Description of the Related Art In conventional satellite digital broadcasting, 1
When one broadcaster uses one physical channel and the viewer selects a program that the viewer desires to view, the tuner selects the physical channel including the program, and the physical channel including the one is included in the physical channel. The process of extracting desired data from the digital data bit stream of one business operator is performed. That is, only one program is to be viewed or recorded at the same time. In addition, a completely different tuner and demodulation device are required in order to view and record a program broadcast at the same time on another physical channel.

Here, for example, in BS digital broadcasting, which is currently under study, a plurality of TS-IDs (programs or data provided by a plurality of operators or provided by a single operator are provided in one physical channel). A method including a plurality of programs having different modulation methods from each other or indicators assigned to data has been studied and reported (For details, see NHK STRL Open Lecture / Presentation Proceedings, 1998.
May 2009, author-Hajime Matsumura (see "BS Digital Broadcasting").

When the above-mentioned conventional technique is applied to such a system, the viewer can see that a program with a plurality of TS-IDs is broadcast at the same time and on the same physical channel. Viewing a program desired to be viewed, recording a bit stream of the same digital data as that of the program being viewed, or recording a bit stream of digital data in one TS-ID is required, and other programs included in the same physical channel are included. It is not possible to view or record the program of TS-ID.

[0005]

As described above, in the conventional satellite broadcast receiving technology, when receiving a digital broadcast such as the BS digital broadcast system which is currently under study,
At the same time, even though a plurality of TS-ID programs are broadcast on the same physical channel, a viewer views a program he / she desires to watch, and a bit stream of the same digital data as the program being watched. Since it is inevitable to record, or record a bit stream of digital data in one TS-ID, it is possible to view, record, and reproduce programs of other TS-IDs included in the same physical channel. Is requested.

The present invention has been made in order to realize the above-mentioned demand, and a T channel is provided in each physical channel.
In a broadcasting system that includes a plurality of programs to which S-IDs are added, a broadcast signal reception that allows viewing, recording, or reproducing of a plurality of TS-ID programs without using a plurality of tuners and demodulators The purpose is to provide a device.

[0007]

In order to solve the above-mentioned problems, according to the present invention , a plurality of physical channels each have a different TS-ID (transport stream indicator).
The bit stream of a plurality of programs or data by but a plurality of programs or data bit streams granted or different modulation schemes, even a single TS-ID,
Sequentially to specified slots in multiple slots in frame units
Allocate the same for each bitstream at the beginning of each slot.
A control information signal including a period signal and transmission control information or program information
Broadcasting for receiving broadcast signals of the method of adding and transmitting signals
It is applied to a signal reception device, receives a broadcast signal , selects one physical channel from a plurality of physical channels, and demodulates a signal transmitted by the physical channel. At this time, the control information signal is converted from the demodulated signal into the first control information.
Each of the signals in the signal demodulated by the multiplexing means is extracted by the signal decoding means and the contents thereof are decoded.
Multiplex into the bitstream to reconstruct the frame structure,
For example, it is sent for recording. The multiplexing means is
Bits of each slot of the signal demodulated by the signal / demodulation means
For the stream, the number of slots
The frame sync signal is added to the position of the sync signal added at the beginning.
Signal and the control information signal are replaced or inserted.
By doing so, multiple processing is performed. Further, in this reconstructed signal format similar to the signal format, recording the control information signal including the transmission control information or program information of each bitstream is signaled (e.g., the reconstructed multiplexed into a plurality of bitstreams The reproduced signal of the generated signal) is input, the control information signal is extracted from this signal by the second control information signal decoding means, and the content thereof is decoded . Either the demodulated signal or the signal is selected, and the first or second control information signal is selected.
Based on the contents of the control information signal obtained by the signal decoding means ,
Any bit stream is separated and output from the selected signal.

In the above arrangement, the viewer specifies a bitstream of a program or data that he / she desires to view, and a physical channel including the bitstream is selected. In the physical channel, a bit stream of a plurality of programs or data to which broadcast TS-IDs are added, or a bit stream of a plurality of programs or data with different modulation methods even with one TS-ID is demodulated and simultaneously. The control information signal including the transmission control information or program information of these bit streams is extracted and its contents
Is decoded , an arbitrary bit stream is separated from the bit stream demodulated based on the control information signal, and converted into a video output and an audio output. Also,
Accordingly, the extracted control information signal is multiplexed with the demodulated physical channel signal to reconstruct and output the frame structure. This output can be used as a recording signal for the receiving channel. Multiplexing of the above control / information signals
Into the bitstream of each slot of the demodulated signal
On the other hand, it is added to the beginning of the multiple slots in frame units.
The frame sync signal and the
By replacing or inserting the information signal
Reveal.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a broadcast signal receiving apparatus according to the present invention. Here, the above-mentioned BS digital broadcast is assumed as the broadcast signal. Prior to explaining FIG. 1, the BS currently under consideration
The digital broadcasting system will be described with reference to FIG.

FIG. 2 shows a plurality of TS-IDs in one physical channel (here, as an example, it is considered for each carrier).
It shows that the programs or data are multiplexed. This figure shows the configuration of one physical channel at a certain time, which is called a frame. This frame is divided into, for example, 48 basic units as shown in the drawing, and a carrier is assigned to each slot. A sync signal and a control information signal for controlling the allocation of these carriers are added to the head of the slot. The subsequent part of each slot becomes a digital bit stream. As the control information signal, specifically, a signal for identifying a plurality of carriers, a signal for identifying a bit stream, or a signal for identifying the modulation method of the digital data can be considered (generally referred to as TS-ID). ).

In FIG. 2, as an example, slots 1 to 22 are carriers A, slots 23 to 44 are carriers B and slots 45.
~ 48 are assigned to the business operator C. In addition, each slot has 8P depending on the bit rate of the transmitted data.
It is allowed to be modulated by any modulation method from among SK, QPSK, BPSK and the like. Here is slot 1
~ 44, for example MP @ HL in MPEG2 format
A high-definition television (HDTV) signal encoded in a format is modulated with 8PSK, and a bit stream is multiplexed, and the slots 45, ...
A standard television (SDTV) signal encoded in two formats of MP @ ML format is modulated by QPSK.

Next, the configuration of this embodiment will be described with reference to FIG. In FIG. 1, reference numeral 1 is an antenna for receiving the above BS digital broadcast signal, and a tuner 2 connected to this antenna 1 is a 12 GHz antenna received by the antenna 1.
A band satellite broadcast signal is input, converted into a 140 MHz band signal, and output to the demodulator 3. At this time, tuner 2
Then, the physical channels used by the selected carriers A and B are selected.

The demodulation device 3 uses the signals of the physical channel selected by the tuner 2 as I-axis (In Phase) and Q-axis (Quad) signals.
demodulate each phase signal (rature phase). The demodulated signal is subjected to error correction processing by the error correction device 4, then separated into a bit stream and a timing clock, and supplied to the data selection device 5. Data selection device 5
Selects one of the bit stream received from the antenna 1 and demodulated and error-corrected as described above, and the bit stream reproduced from the bit stream recording device 30 described later. First, here, it is assumed that the bit stream from the error correction device 4 is selected and supplied to the bit stream separation device 6.

The bit stream demultiplexing device 6 demultiplexes the bit stream of the operator selected by the viewer from among the bit streams of a plurality of operators multiplexed on the physical channel selected by the tuner 2, and the descrambling device 6 Output to 10. Describing according to the example of FIG. 2, for example, the bit stream of the business operator A is selected, and as shown in FIG. 3, it is time-expanded to the length of one frame and output.

The descrambler 10 is only a program that the viewer has purchased in a program that is permitted to be viewed in advance under a contract with a broadcaster or a pay program such as a PPV (Pay Per View) system. Is descrambled in packet units. When performing descrambling, the key required for descrambling is received from the system controller 22,
The activation by this key descrambles the signal of a program that is permitted to be viewed in advance or a newly purchased program. The output signal of the descrambler 10 is MP
The format is MP @ HL format of EG (Moving Picture Experts Group) 2 format or MP @ ML format, and is supplied to the TS decoding device 20.

The bit stream input to the TS decoding device 20 is separated by the bit stream distribution device 21, converted into video data and audio data under the control of the system control device 22, and respectively decoded by the video decoding device 23 and audio decoding. It is supplied to the device 24. The video decoding device 23 expands the supplied video data compressed in the MPEG format, adjusts the delay time between the video data and the audio data due to the compression and expansion, and then converts the digitized video signal into an analog TV signal. It is converted into a John signal and displayed on the CRT 25. Audio decoding device 24
Decompresses the supplied compressed audio data, converts it into an analog audio signal, and causes the speaker 26 to reproduce sound. On the other hand, the output signal of the error correction device 4 is also supplied to the control information signal decoding device 7. The control information signal decoding device 7 extracts and decodes the control information signal for controlling the allocation of the business operator shown in FIG. That is,
The slot allocation for each business operator in FIG. 2 and the control information signal indicating the modulation method are used to instruct the demodulation device 3 to extract the digital bit stream of the specified business operator and to perform the demodulation operation according to the modulation method. . Further, the bitstream separating device 6 is instructed which bitstream of which business operator is assigned to which slot, and controls the operation of separating the bitstream of the business operator selected by the viewer. Further, the control information signal is supplied to the control information signal multiplexer 8.

The control information signal multiplexer 8 uses the bit stream supplied from the error corrector 4 and the control information signal decoded by the control information signal decoder 7 to reconstruct the frame structure shown in FIG. It is constructed and output to the digital interface device 9.

The bit stream output from the digital interface device 9 is supplied to the bit stream recording / reproducing device 30. The bit stream recording / reproducing apparatus 30 comprises a digital interface apparatus 31 and a recording / reproducing apparatus 32. The supplied bit stream is compressed in a predetermined format by the digital interface apparatus 31 and recorded on a recording medium by the recording / reproducing apparatus 32. Record. Further, the bit stream reproduced from the recording medium by the recording / reproducing device 32 is expanded by the digital interface device 31 and output. The bit stream reproduced by the bit stream recording / reproducing device 30 is supplied to the data selecting device 5 and the control information signal decoding device 7 via the digital interface device 9.

At this time, the data selection device 5 selects the reproduced bit stream from the digital interface device 9 and supplies it to the bit stream separation device 6.
Further, the control signal decoding device 7 extracts and decodes the control signal shown in FIG. 2 from the reproduced bit stream. For example, the position of the slot containing the bit stream of the business operator which the viewer desires to view is determined by the signal from the microcomputer or the system control device 22 of FIG. 1, and the bit stream separation device 6 is shown in FIG. If the desired business operator is A, the bit stream of the business operator A is separated and the time is extended. The separated bit stream is output to the descrambler 10. Subsequent processing is the same as that at the time of reception from the antenna 1 and thus will be omitted.

Here, it is assumed that broadcasting including a pay program is performed, and it is assumed that the pay program is scrambled, and a descrambler for descrambles the pay program which is permitted to be viewed. 10 are provided. When there is no pay broadcast, the descrambler 10 is omitted.

Next, the processing contents of the control signal multiplexer 8 which characterizes the present invention will be described with reference to FIG. The control information signal multiplexer 8 multiplexes the output signal of the error correction device 4 with the control information signal decoded by the control information signal decoder 7 and outputs the multiplexed signal. Regarding the format, it has been described in the present embodiment that the format is as shown in FIG. 2, but another configuration example of multiple output will be described here. 4 (a) to 4 (d) show examples of multiple output configurations.

In the configuration example of FIG. 4A, the frame sync signal and the control information signal sync bit are replaced or inserted at the sync bit position of the transport stream. The byte data after the frame synchronization signal and the control information signal becomes the information signal and parity signal of the transport stream. As shown in the figure, the frame synchronization signal and the control information signal have a form in which several bytes of the control information signal are sandwiched between the synchronization signals in the slot direction. One frame is configured in this format, and a plurality of frames are combined to form one transmission unit.

In the configuration example of FIG. 4B, as in the case of FIG. 4A, the frame sync signal and the control information signal sync bit are replaced by the sync bit position of the transport stream.
Or, it is designed to be inserted. The byte data after the frame synchronization signal and the control information signal becomes the information signal and parity signal of the transport stream. Here, unlike (a), the signal at the beginning of each frame becomes a synchronization signal, and the control information signal is subsequently replaced or inserted in the slot direction after that. The replacement or insertion into the sync bit of the transport stream is repeated until the bits of the control information signal are completed.

In the configuration example shown in FIG. 4 (c), the synchronization signal and the control information signal are multiplexed at the beginning of the frame. That is, the synchronization signal is provided at the beginning of the frame, the control information signal is immediately followed by the synchronization signal,
After that, it becomes an information signal and a parity signal. This is repeated at the beginning of the next frame. In this case, several frames are combined into one unit of the control information signal.

The configuration example shown in FIG. 4 (d) is one in which the above control information signals are successively multiplexed. That is, the control information signal is continuously multiplexed after the frame synchronization signal until the signal ends.

The control information signal decoding device 7 corresponds to the multiplexing system of FIG. 4, receives the output signal from the recording device 30, supplements synchronization from the output signal, and extracts the control information signal. The bit stream separation device 6 extracts a desired bit stream based on the extracted control information signal.

According to the above configuration, when the viewer designates a desired program, the tuner 2 selects a physical channel including the designated program. In the physical channel, a bit stream including programs of a plurality of broadcasters is demodulated by the demodulation device 3, time-division multiplexed, and output. At the same time, the control signal multiplexer 8 synchronizes with these bit streams to identify a plurality of operators, a signal to identify the bit streams, or a signal to identify the digital data modulation method (control information signal). Are time-multiplexed and output. In addition, in the physical channel, there are times when a signal for identifying a bitstream containing a program of a plurality of broadcasters and a broadcaster, a signal for identifying a bitstream, or a signal for identifying a modulation method of digital data. It is divided and multiplexed and output. As a result, one demodulation device can demodulate and output bit streams of a plurality of carriers.

Therefore, by connecting a decoding device 7 for decoding an HDTV or SDTV signal to the demodulated output, a bit stream of digital data including a desired program can be separated, and a decoding process of video data and audio data can be performed. With this, it becomes possible to view a desired program. As a result, in a broadcasting system in which one physical channel includes a plurality of operators, a plurality of operators broadcast on the same physical channel at the same time without using a plurality of tuner devices and demodulators. It is possible to view, record, or reproduce the program being played.

During playback of the recorded program, if the power supply from the antenna 1 to the error correction device 4 is cut off to stop the operation, the power consumption can be reduced.

FIG. 5 is a block diagram showing the configuration of another embodiment of the broadcast signal receiving apparatus according to the present invention. In FIG. 5, the same parts as those in FIG. 1 are designated by the same reference numerals, and different parts will be described here.

First, the difference of this embodiment from the previous embodiment is that the first antenna 1 and the tuner 2 described above are used.
Independently of the receiving system, the second receiving system including the antenna 11 and the tuner 12 is provided, and the signal switching device 13 for arbitrarily selecting the first receiving system and the second receiving system is provided. The second descrambling device 15 and the second TS decoding device 40 are provided corresponding to the (first) descramble device 10 and the (first) TS decoding device 20 described above.

Here, the second descrambler 15
Like the first descrambling device 10, is omitted when there is no pay broadcast. Also, the second T
The S decoding device 40 has the same configuration as the first TS decoding device 20 and performs decoding processing in the MP @ HL format or the MP @ ML format of the MPEG2 format. Specifically, the bit stream distribution device 4
1, a system control device 42, a video decoding device 43, an audio decoding device 44, a CRT display device 45, and a speaker 46, and each of the devices 41 to 46 constitutes the first TS decoding device 20.
1, the system control device 22, the video decoding device 23, the audio decoding device 24, the CRT display device 25, and the speaker 26 have the same functions.

Next, the operation of this embodiment will be described. Here, it is assumed that the satellite for BS broadcasting and the satellite for CS broadcasting are at different positions on the geostationary orbit.
In order to receive a plurality of broadcast signals transmitted using these satellites, for example, two different antennas are prepared,
The antenna will be directed toward each satellite for reception. Here, the first antenna 1 and the first tuner 2 are for BS broadcast reception, and the second antenna 11 and the second tuner 12 are for CS broadcast reception.

Here, the demodulation device 3 and the error correction device 4 are
Both BS and CS broadcasting systems can be supported. Further, it is assumed that the CS broadcast signal is not processed in the bit stream separation device 6. Further, since it is not necessary to decode the control signal, the control signal decoding device 7 is not used for processing the received signal from the second antenna 11.

First, when receiving a BS broadcast, the BS antenna broadcast signal of an arbitrary physical channel is received by the first antenna 1 and the first tuner 2 and supplied to the signal selection device 13. In the signal selection device 13, the output of the first tuner 2 is selected according to the selection operation of the viewer and is supplied to the demodulation device 3. The subsequent processing is the same as that of the first embodiment, and therefore the description thereof is omitted. However, in the data selection device 14, the output signal of the bit stream separation device 6 is selected and supplied to the first descrambling device 10. .

The output signal of the first descrambling device 10 is supplied to the first TS decoding device 20 and the video signal and the audio signal are decoded. The output signal of the bit stream separation device 6 is also supplied to the second descrambling device 15. The output signal of the second descrambling device 15 is supplied to the second TS decoding device 40, and the video signal and the audio signal are similarly decoded.

In such a processing operation, for example, the bit stream of the business operator A in FIG. 2 is decoded by the first TS decoding device 20, and at the same time, the bit stream of the business operator B in FIG. 2 is decoded by the second TS decoding device 40. This is effective when decoding with. In this embodiment, two CRTs 2
5 and 45, or 2 sets of speakers 25 and 46,
Image display or audio output is made,
Of course, the same applies when using one CRT and one set of speakers.

Although not described in detail, in the present embodiment, the bit stream is recorded in the recording / reproducing device 30 in the signal format of FIG. 2 as in the first embodiment.

Next, according to the present embodiment, for example, by using the second antenna 11 and the second tuner 12, while receiving the CS broadcast, the bit stream recorded in the recording / reproducing apparatus 30 at the same time is used for the video image. , It becomes possible to view audio. The operation will be described.

When receiving the CS broadcast signal, the second antenna 11 and the second tuner 12 receive the CS broadcast signal of an arbitrary physical channel and supply it to the signal selection device 13. In the signal selection device 13, the output of the second tuner 12 is selected according to the selection operation of the viewer and is supplied to the demodulation device 3. The output signal of the demodulation device 3 is supplied to the data selection device 14 after the error correction device 4 decodes the error correction code. The output signal of the data selection device 14 is supplied to the first descrambling device 10. The output signal of the first descrambler 10 is the first
Is supplied to the TS decoding device 20 and the video signal and the audio signal are decoded. The decoded video signal is displayed on the CRT 25, and the audio signal is output from the speaker 26.

On the other hand, the bit stream recorded in the recording / reproducing device 30 is a digital interface device 31,
It is supplied to the data selection device 5 and the control signal decoding device 7 via 9. In the data selection device 5, the signal from the digital interface device 9 is selected and supplied to the bit stream separation device 6. Control signal decoding device 7
Then, the control signal shown in FIG. 2 is extracted and decoded.

For example, the position of the slot containing the bit stream of the business operator which the viewer desires to view is discriminated by the signal from the microcomputer or the system control device 42 of FIG. As shown in FIG. 3, if the desired business operator is A, the bit stream of the business operator A is separated and the time is extended,
Output to the second descrambler 15. The output signal of the second descrambling device 15 is supplied to the second TS decoding device 40, and the video signal and the audio signal are similarly decoded. Decoded video signal is CRT
The image is displayed at 45 and an audio signal is output from the speaker 46.

With the above operation, for example, while receiving the CS broadcast, it is possible to view the video and audio by using the bit stream recorded in the recording / reproducing apparatus 30 at the same time.

In the above embodiment, an example in which there are two systems of antennas and tuners has been described. However, the antennas and tuners are also capable of receiving a plurality of satellite broadcasts, that is, one system. In this case, the configuration of this embodiment can be realized. Further, in the present embodiment, it has been described that the video and audio are viewed using the bit stream recorded in the recording / reproducing device 30 while receiving the CS broadcast, but the present invention is not limited to the CS broadcast. As long as the demodulation device 3 and the error correction device 4 can be used in common, the broadcasting system can be applied to other digital broadcasting (for example, terrestrial digital broadcasting planned to be implemented in the future).

Although the embodiment of the present invention has been described above, the expression "bitstream" in the text can be applied to the expression "transport stream" as it is. The present invention is not limited to the embodiments described above, and various applications can be easily considered.

[0047]

As described above, according to the present invention, a plurality of tuner devices and demodulation devices are used in a broadcasting system in which one physical channel includes a plurality of programs each having a TS-ID. In addition, it is possible to provide a broadcast signal receiving apparatus capable of viewing, recording, or reproducing a plurality of TS-ID programs that are broadcast on the same physical channel at the same time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a broadcast signal receiving apparatus according to the present invention.

FIG. 2 is a view for explaining details of a frame structure of a BS digital broadcasting system applied in the embodiment.

FIG. 3 is a diagram for explaining a demodulation output operation in the same embodiment.

FIG. 4 is a diagram showing an example of a multiplex output configuration for explaining processing contents of a control signal multiplex device, which is a feature of the present invention, in the same embodiment.

FIG. 5 is a block diagram showing the configuration of another embodiment of the broadcast signal receiving apparatus according to the present invention.

[Explanation of symbols]

1 ... Antenna, 2 ... Tuner, 3 ... Demodulation device, 4 ... Error correction device, 5 ... Data selection device, 6 ... Bit stream demultiplexing device, 7 ... Control information signal decoding device, 8 ... Control information signal multiplexing device, 9 ... Digital interface device, 1
0 ... Descramble device, 11 ... Antenna, 12 ... Tuner, 13 ... Signal switching device, 14 ... Data selection device, 1
5 ... descramble device, 20 ... TS decoding device, 2
DESCRIPTION OF SYMBOLS 1 ... Bit stream distribution apparatus, 22 ... System control apparatus, 23 ... Video decoding apparatus, 24 ... Audio decoding apparatus, 25 ... CRT, 26 ... Speaker, 30 ... Bit stream recording / reproducing apparatus, 31 ... Digital interface apparatus, 32 ... Recording Playback device, 40 ... TS decoding device,
41 ... Bit stream distribution device, 42 ... System control device, 43 ... Video decoding device, 44 ... Audio decoding device, 45 ... CRT, 46 ... Speaker.

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Claims (5)

(57) [Claims] 1. A plurality of physical channels each have a different TS-ID (transport stream indicator).
The bit stream of a plurality of programs or data by but a plurality of programs or data bit streams granted or different modulation schemes, even a single TS-ID,
Sequentially to specified slots in multiple slots in frame units
Allocate the same for each bitstream at the beginning of each slot.
A control information signal including a period signal and transmission control information or program information
Broadcasting for receiving broadcast signals of the method of adding and transmitting signals
In No. receiving apparatus receives the broadcast signal selects a single physical channel from said plurality of physical channels, to the physical channel
Thus the receiving and demodulating means for demodulating a signal transmitted, the first control information signal for decoding the extracted contents of shiso the control information signal from the signal demodulated by said receiving-demodulating means
And No. decoding means, each of the signals in demodulated by the first control information signal decoding means the receiving and demodulating means the extracted control information signal
Comprising a multiplexing means for reconstructing a frame structure by multiplexing the bitstream in the same form and format of the signal output from said multiplexing means, the transmission control information or program information of each bit stream to a plurality of bit streams A signal input means for inputting a signal in which the control information signal is multiplexed, and a control information signal is extracted from the signal input by this input means.
Second control information signal decoding means for decoding the contents thereof, the signal demodulated by the reception / demodulation means and the signal input means.
Signal selection means for selecting either one of the signals input to the stage, and the signal selection means for selecting based on the content of the control information signal obtained by the first or second control information signal decoding means. And a bitstream separating means for separating and outputting one of the bitstreams from the received signal , wherein the multiplexing means is a signal demodulated by the receiving / demodulating means.
For each bit stream of each
A sync signal added to the beginning of the plurality of slots
The frame synchronization signal and the control information signal at the position
Order or, or a broadcast signal receiving apparatus, characterized in that the multiprocessing by inserting. 2. A plurality of physical channels each have a different TS-ID (transport stream indicator).
The bit stream of a plurality of programs or data by but a plurality of programs or data bit streams granted or different modulation schemes, even a single TS-ID,
Sequentially to specified slots in multiple slots in frame units
Allocate the same for each bitstream at the beginning of each slot.
A control information signal including a period signal and transmission control information or program information
Broadcasting for receiving broadcast signals of the method of adding and transmitting signals
In No. receiving apparatus receives the broadcast signal selects a single physical channel from said plurality of physical channels, to the physical channel
Thus the receiving and demodulating means for demodulating a signal transmitted, similar in form <br/> expression and format of the signal to be demodulated by the receiving and demodulating unit, transmission control information of each bit stream to a plurality of bit streams Alternatively, a signal input means for inputting a signal in which a control information signal including program information is multiplexed, and selectively outputting either the signal demodulated by the receiving / demodulating means or the signal input by the signal input means Belief
No. selection means and the control information signal decoded for decoding the extracted contents of shiso the control information signal from the selected signal in the signal selecting means
In the receiving and demodulating means by the control means and the control information signal decoding means.
Receiving the control information signal extracted from the demodulated signal
.For each bit stream in the signal demodulated by the demodulation means
Multiplexing means for multiplexing and reconstructing a frame structure, and a control information signal obtained by the control information signal decoding means
And a bitstream separating means for separating and outputting one of the bitstreams from the signal selected by the signal selecting means based on the contents of the above, and the multiplexing means is a signal demodulated by the receiving / demodulating means.
For each bit stream of each
A sync signal added to the beginning of the plurality of slots
The frame synchronization signal and the control information signal at the position
A broadcast signal receiving device characterized by performing multiplex processing by replacing or inserting . 3. The multiplexing means is arranged so that the signal demodulated by the receiving / demodulating means is MPEG (Moving Picture Experts G).
roup) method when a transport stream according to, the control information signal, or Sugekaeru the synchronization byte of the MPEG- transport stream or inserted addition claim 1, characterized in that so as to multiplexing,
Is the broadcast signal receiving device described in 2 . 4. The signal input means is an output of the multiplexing means.
It is characterized in that the input / output signal of the input / output signal is input.
The broadcast signal receiving device according to claim 1 or 2. 5. When the signal selecting means selects the recorded / reproduced signal, the power supply of the receiving / demodulating means is cut off to stop the driving. The broadcast signal receiving device according to claim 4 .