JPH10191189A - Receiver and recording and reproducing device in system receiving and recording/reproducing digital broadcast signal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the service utilizing information relating to programs by demultiplexing immediately a program reproduced from a recording reproducing means that records the program in a multiplexed digital signal and decoding and displaying the program. SOLUTION: A digital signal obtained by applying error correction to an input signal is given to a 1st demultiplexer section 404 via switches 414, 424. The 1st demultiplexer section 404 demultiplexes desired program information. In the case of recording a signal to a recording and reproducing means 423, a switch 414 is switched to connect an FEC 403 and a 2nd demultiplexer section 413 under the control from a control means 409. The 2nd demultiplexer section 413 extracts only data by which a viewer reproduces only a desired program at reproduction after the recording. Thus, even when an information amount of the received signal differs from an information amount recordable in the recording and reproducing device, only digital signals relating to the desired program are selectively recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a television signal receiving and recording / reproducing apparatus, and more particularly to a receiving apparatus and a recording / reproducing apparatus in a digital broadcast signal receiving and recording / reproducing system for recording and reproducing a digital signal as it is.

[0002]

2. Description of the Related Art As a conventional technique for recording and reproducing a digital signal, a receiving system and a recording / reproducing apparatus for receiving and recording a digital signal transmitted by multiplexing a plurality of pieces of information are disclosed in JP-A-8-98164. It is stated in. In the above-mentioned conventional technique, a receiving means for receiving a digital information signal transmitted by multiplexing a plurality of information and selecting desired information, and a recording means for recording the information received by the receiving means are provided. A receiving system is described. Japanese Patent Application Laid-Open No. H8-5635 discloses a technique for selecting a desired program when presenting a program by receiving a digital signal transmitted by multiplexing a plurality of pieces of information.
0. In the conventional technique, a plurality of programs are packetized by adding packet identifiers, and transmission control data indicating the correspondence between the programs and the packet identifiers is also packetized. Each of these packets is multiplexed. Describes a device for searching for each program from a multiplexed signal transmitted by electronic mail.

[0003]

SUMMARY OF THE INVENTION The aforementioned Japanese Patent Laid-Open No. 8-98
The prior art described in H.164 does not describe a method of separating and reproducing only information relating to a desired program from information multiplexed during reproduction of a recorded program. On the other hand, in the prior art described in Japanese Patent Application Laid-Open No. 8-56350, a search means for extracting and presenting a desired signal from a multiplexed digital signal is described. However, for example, a conventional analog V
In general, when a program recorded in a TR is to be reproduced, it can be reproduced by simply pressing a reproduction switch without any other operation.
Even when the digital information signal technology described in Japanese Patent No. 98164 and the technology described in Japanese Patent Application Laid-Open No. 8-56350 are combined, a troublesome operation such as a program search must be performed during reproduction. A method of reproducing a desired program immediately recorded by simply pressing one switch like a system VTR cannot be realized.

An object of the present invention is to provide a digital broadcast signal receiving and recording / reproducing apparatus capable of immediately reproducing a program recorded as a digital signal without any troublesome operation as in the case of the analog VTR. With the goal.

[0005]

A receiving means for receiving a signal transmitted by multiplexing video, audio, data and the like as digital information into one bit string of a predetermined packet format, and a signal received by the receiving means. In a system comprising recording / reproducing means for recording / reproducing a signal, the receiving means receives at least transmitted digital information and demodulates the digital information into a bit stream of a predetermined format, and an output of the channel decoding means. Selecting means for selecting whether the information is output from the recording / reproducing means, and extracting a first information packet specified from the bit string selected by the selecting means, and outputting a first information packet indicated by the extracted first information packet. First packet separating means for outputting the signal packet of Decoding the first signal packets such as video, audio, data, and extracts a source decoding means for outputting a television signal, a second information packet specified by the output bit string of the channel decoding means,
A second information packet indicated by the extracted second information packet;
A second packet separating unit for outputting at least the signal packet to the recording and reproducing unit, an information packet outputting unit for outputting the second information packet to at least the recording and reproducing unit, and a second packet reproduced by the recording and reproducing unit. Input means for inputting the third information packet and the second information output from the first information packet or the second packet separation means output from the first packet separation means.
Control means for controlling the system by analyzing the information packet or the third information packet reproduced by the recording / reproducing means, and providing the recording / reproducing means with the second signal packet output by the receiving means. A signal input unit for inputting, an information input unit for inputting the second information packet, and a recording signal packet input by the signal input unit being recorded in a first area on a recording medium, and input by the information input unit. Recording means for recording the recorded information packet in a second area and / or a first area on the recording medium, reproducing means for reproducing the recording medium, and reproduced in the first area by the reproducing means. Signal packet processing means for generating and outputting a reproduced signal packet from the reproduced signal, and reproducing from a signal reproduced in the second area or the first area by the reproducing means. An information packet processing unit that generates an information packet and outputs the information packet as at least a third information packet to the receiving unit; a control of a timing at which the recording unit records the first area and the second area; Timing generating means for controlling timing for reproducing the first area and the second area.

[0006]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing a block configuration of a digital broadcast signal receiving and recording / reproducing apparatus according to the present invention. In the following description, the antenna 300 is a quadrature.
An example of receiving a satellite broadcast wave digitally modulated by the PhaseShift Keying (hereinafter abbreviated as QPSK) method is shown below.
Thus, the transmission method used in the present invention is limited to satellite broadcasting, and the modulation method is not limited to QPSK method. Moving Picture Experts Group 2 (hereinafter referred to as MPEG2) is an international standard for signal compression and decompression.
An abbreviated example is shown, but the compression and decompression method of the signal used in the present invention is not limited to MPEG2.

In FIG. 1, reference numeral 300 denotes an antenna, 301
Is a converter for converting a received radio wave into a tuner input signal, 302 is a cable, 401 is a tuner, and 402 is Q
PSK demodulation circuit 403, Forward Error Correction (hereinafter abbreviated as FEC) for correcting an error of a signal accompanying transmission,
414 and 424 are switches, 413 is a second demultiplexing unit, 423 is a signal recording / reproducing unit, 404 is a first demultiplexing unit, 405 is an MPEG2 decoder, 406 is a video encoder, 407 is a D / A converter, and 408 Is On S
creen Display (hereinafter abbreviated as OSD), 409 is a control means, 410 is a television, and 434 and 415 are
A RAM (Random Access Memory) for expanding data by the 1 demultiplexing unit 404 and the MPEG2 decoder 405;
419 is an R which stores an operation program of the control means 409.
OM (Read Only Memory).

Reference numeral 480 denotes recording program information;
1 is reproduction program information, 482 is a recording program signal, and 481 is a reproduction program signal.

In FIG. 1, a radio wave transmitted from a satellite (not shown) is received by an antenna 300 and converted by a converter 30.
At 1, the signal is converted into a tuner input signal and input to the tuner 401 via the cable 302. In the example shown in FIG. 1, the tuner 401 selects and outputs a desired signal from the input signal in accordance with the setting of the control unit 409. The output of the tuner 401 is demodulated by a QPSK demodulation circuit 402,
It is input to EC403. The FEC 403 performs error correction of an input digital signal accompanying transmission.

The digital signal obtained by correcting the error of the input signal as described above is converted into switches 414 and 424.
The operation when input to the first demultiplexing unit 404 via the. Satellite digital broadcasting described in the present invention is:
In general, there is a feature that a plurality of programs can be multiplexed on one radio wave relayed by a radio wave transponder (not shown) mounted on a satellite. The first demultiplexer 404 selects a desired program from the multiplexed programs.
The signal separated by the first demultiplexer 404 is input to the MPEG2 decoder 405. MPEG2 decoder 405
Expands the compressed digital signal and reproduces the digital video signal and digital audio signal before compression. The reproduced digital video signal is sent to the video encoder 406 via the OSD circuit 408, and the digital audio signal is sent to the D / D converter 408.
/ A converter 407. The video encoder 406 converts the input digital video signal into an analog video signal and outputs the analog video signal to the television 410. On the other hand, D / A
Converter 407 converts the input digital audio signal into an analog audio signal and outputs the analog audio signal to television 410. The above operation is controlled by a control unit 409 that operates according to a program stored in the ROM 419.

In the above description, the first demultiplexer 4
An example of a general procedure for separating desired program information at 04 will be described with reference to FIGS. First demultiplexer 4
The signal input to 04 has a configuration in which the packets shown in FIG. 2A are multiplexed. FIG. 2B shows an example of multiplexing.
The operation described below is performed by processing the multiplexed signal in the first demultiplexer 404 as shown in FIG. 2B.

FIG. 3 shows an example of the operation of the demultiplexing unit. First, in step 201, the viewer inputs the organization channel of the program desired to be viewed. An organization channel is a method of summarizing video, audio, and the like that constitute one program, and corresponds to a television channel in conventional analog broadcasting.
In digital broadcasting, one frequency in which a plurality of programs are multiplexed is generally called a physical channel. Next, in step 202, a PAT (Program Association Table) included in the currently received multiplexed signal (= Transport Stream, hereinafter referred to as TS) is received.
PAT is one of the tables in PSI (Program Specific Information) defined by the MPEG2 standard which is an international standard. In step 203, a desired organization channel is searched from the PAT received in step 202. If there is a desired composition channel, the process proceeds to step 207. If there is no desired knitting channel, the process proceeds to step 204, where the NIT which is one of the PSI and describes the relationship between the knitting channel and the physical channel is described.
(Network Information Table) is received, a physical channel including a desired organization channel is acquired, and in the next step 205, the physical channel is acquired in step 204.

The shift of the physical channel is performed by setting a frequency to be selected from the control means 409 to the tuner 401 in the actual circuit as shown in FIG. Thereafter, in step 206, the PAT of the TS in the physical channel after the shift is received. When the PAT is received, the PID (Packet ID) of the PMT (Program MapTable) in which the PIDs of the video and audio constituting the organization channel input in step 207 are described.
The PMT obtained from the AT and having the PID is received. Here, PMT is one of the tables of PSI, and PID is a packet identifier included in the header of the packet. The PMT has a PCR indicating video, audio, and time information constituting each composition channel included in the TS being received.
(Program Clock Reference), etc., the video of the desired program,
Acquires PID such as voice and PCR. Then, the acquired PID is used in step 209 for the first demultiplexing means 4.
04, receive the desired video and audio streams,
The data is input to the MPEG2 decoder 405 and decoded.

The video signal decoded by the above-described operation is processed by the NTSC encoder via the OSD 408 to be converted into an analog signal, and the audio signal is converted to a D / D signal.
By converting the signal into an analog signal by the A converter 407 and inputting the signal to the television 410, a program desired by the viewer can be presented.

Next, a procedure for recording a signal received by the recording / reproducing means 423 through the switch 414 and the second demultiplexer 413 and reproducing a signal recorded from the recording / reproducing means 423 through the switch 424 will be described.

When recording a signal in the recording / reproducing means 423, the switch 414 is controlled according to the control of the control means 409.
Is switched to connect the FEC 403 and the second demultiplexing unit 413. The second demultiplexing unit 413 is means for extracting only data necessary for a viewer to reproduce only a desired program at the time of reproduction after recording. In the embodiment of FIG. 1, in addition to the above-described TS such as PAT, PMT, PID, video, and audio, an MPEG2 decoder 40 is used.
PCR (Pr
(Program Clock Reference) and only information relating to a desired program (currently viewed program) from the program-related information. FIG. 8 shows an example of the configuration of the second demultiplexer 413.

In FIG. 8, a multiplexing / demultiplexing unit 4131 for extracting desired information and a speed converting unit 4132 for converting the transmission rate of the output signal of the multiplexing / demultiplexing unit 4131 to match the recording / reproducing unit are provided. It is.
The speed conversion means 4132 is, for example, a FIFO
(Fast in Fast Out) memory. FIG. 9 shows another configuration example of the second demultiplexer 413. In FIG. 9, reference numeral 4133 denotes a second demultiplexer 413 and the recording / reproducing means 4.
23, for example, when the signal output from the speed conversion means 4132 is a parallel signal, the signal is converted into a serial signal. Second demultiplexing section 413 configured as in the example shown in FIG. 8 or FIG.
The signal extracted by the above is output to the recording / reproducing means 423 as a recording program signal 482.

At the same time, the PAT, PMT, PID and the like extracted by the second demultiplexer 413 are output as recording program information 480 to the recording / reproducing means 423 via the control means 409.

FIG. 4 is a block diagram of the recording / reproducing means 423. In FIG. 4, reference numeral 500 denotes a recording program signal input means, 501 denotes a recording program information input means, 502 denotes an input circuit, and 503 denotes a subcode generation circuit. ,
504 is a storage circuit, 505 is a recording processing circuit, 506 is a reproduction processing circuit, 507 is an output circuit, 508 is a subcode processing circuit, 509 is reproduction program signal output means, 510
Is a reproduction program information output means, 511 is a rotary head,
512 is a magnetic tape, and 513 is a timing generation circuit.

FIG. 5 shows a recording format in the recording / reproducing means 423.
1 shows one track to be recorded on the magnetic tape 512 after being rotated by °. In the figure, 50 is a margin 1 and preamble 1, 51 is a subcode area, 52 is a postamble 1, and preambles 2 and 53 are a main area, 5
4 is a postamble 2 and a margin 2. In the main area 53, 55 is a digital signal, and 56 is a C2 parity for error correction. The C2 parity 56 is added to the reduced digital signal 55 for six tracks, and is completed in six tracks.

FIG. 6A shows a format of a subcode recorded in the subcode area 51, and shows one block. In the figure, reference numeral 61 denotes a synchronization signal indicating the beginning of a block; 62, IDs 1 and 6 in which track numbers indicating the absolute number of tracks from the beginning of the magnetic tape 19 are recorded
Reference numeral 3 denotes an I where a start flag, a skip flag, and the like are recorded.
D2 and 64 are IDPs which are parity for error detection of ID1 (62) and ID2 (63), and 65 is a main area 53.
The pack data 66 has additional information with respect to the signal recorded in the pack data 65.
Parity. The C1 parity 66 is added to the pack data 65 of one block. (B) is a recording format of main data recorded in the main area 53, which indicates one block. In the figure,
Reference numeral 71 denotes a synchronization signal indicating the head of the block, 72 denotes an ID1 in which SEQ77 and TPA78 indicating frame information and the like are recorded, 73 denotes a block address indicating the position of the block in the track, and 74 denotes an ID1 (72). I
IDP, which is a parity for error detection of D2 (73), 7
Reference numeral 5 denotes main data such as a compressed video signal, and reference numeral 76 denotes a C1 parity for error detection and correction of the main data 75.
The C1 parity 76 is added to the main data 75 in one block. In the lower part of FIG. 4 (b), reference numeral 180 denotes an unused area, and 79 denotes a block address indicating a block position. The number in parentheses indicates the number of bits.

At the time of recording, recording program signal input means 5
The recording program signal 482 input from 00 is stored in the storage circuit 504 via the input circuit 502. The C2 parity 56, the C1 parity 76, and the synchronization signal 71 shown in FIG. 6B are added to the program signal stored in the storage circuit 504 by the recording processing circuit 505, and the rotating head 511 shows the program signal shown in FIG. It is recorded in the main area 53. At the same time, from the recording program information input means 501, the PAT, P
Input recording program information 480 such as MT and PID,
The subcode generation circuit 503 generates the pack data 65 shown in FIG. Further, the recording processing circuit 505
To add C1 parity 66, synchronization signal 61, etc.
It is recorded in the subcode area 51 shown in FIG. In addition,
The recording timing of the main area 53 and the subcode area 51 is controlled by a timing generation circuit 513.

At the time of reproduction, the signal reproduced by the rotary head 511 is subjected to detection of the synchronization signals 61 and 71 by the reproduction processing circuit 506, error detection and correction using the C1 parities 66 and 76, and the C2 parity 56, and the sub area 51. From the pack data reproduced from
AT, PMT, PID, etc. are extracted and output as reproduction program information 510 from reproduction program information output means. Further, the main data 75 reproduced from the main area 53 is stored in the storage circuit 504 and then output from the output circuit 507.
And output from the reproduction program signal output means 509 as a reproduction program signal 509. Note that the reproduction timing of the main area 53 and the subcode area 51 is controlled by the timing generation circuit 513 as in the case of recording.

Further, the reproduction program signal reproduced by the recording / reproduction means 423 is input to the demultiplexing means 404 via the switch 424. When the signal recorded in the recording / reproducing means 423 is reproduced, the demultiplexing means 404 is controlled by the control means 409 to operate according to the procedure shown in FIG. Hereinafter, the operation will be described. In general, a PID indicating program-related information is indicated by a specific value irrespective of a program, and the present embodiment will be described on the premise of this.

First, at step 450, the control means 409
As soon as the reproduction program information output from the recording / reproduction means 423 is input, the PID such as the video and audio of the program recorded in step 451 can be obtained. The following procedure is the same as that described in FIG.

As described above, in the present embodiment, a program reproduced from the recording / reproducing means 423 which records a program in the state of a multiplexed digital signal is immediately demultiplexed without a complicated operation by a viewer. Can be decoded and presented. Furthermore, since desired program-related information is recorded, services using information on programs, which is one of the features of digital broadcasting, can be enhanced.

It is also possible to record program information necessary for channel selection as pack data at the head (not shown) of the main area 53 separately from the program signal, similarly to the subcode area 51. You may use this.

By the way, the recording program signal 482 separated by the second demultiplexing unit 413 also includes the PA required for channel selection.
T, PMT, PID and the like are included, and the reproduction program signal 483 at the time of reproduction naturally includes them.
Then, the reproduction program signal 4
The PAT, PMT, PID, and the like may be extracted from 83, but the main data 75 in FIG. 6 is not output unless the error correction by the C2 parity 56 that completes six tracks is completed as described above. During that time, the data is continuously stored in the storage circuit 504. On the other hand, the pack data 65 recorded in the sub-code area 51 is output immediately after reproduction since only the error detection and correction of only the C1 parity 66 of block completion is performed. Extracting the PID or the like from the selected program information has the advantage that the music selection process can be performed faster.

At this time, since the number of times of error detection and correction is small, the reliability of the reproduced pack data 65 is inferior to the reliability of the main data 75. Therefore, the normal pack data 65 is multiplex-recorded on the same track, and at the time of reproduction, the subcode processing circuit 508 performs processing such as coincidence detection and majority decision in one track, thereby improving the reliability of the reproduced pack data 65. The output delay in that case is also 1 to
It is about two tracks and can be output at a timing earlier than the main data 75. When the program information is recorded at the head of the main area 53, the C2 parity 56
If the output is performed before the error correction using the subcode area 51, the processing can be performed at an earlier timing as in the case where the subcode area 51 is used.

In the description of the operation of the recording / reproducing means 423, the processing of the recording program information 480 is directly input from the subcode generation circuit 503 to the recording processing circuit 505.
The processing of the reproduction program information 481 is directly input from the reproduction processing circuit 506 to the subcode processing circuit 508, but may be stored once in the storage circuit 504.

Further, in FIGS. 1 and 4, the recording program signal 482 and the reproducing program signal 483 are transmitted through separate signal lines, but one line may be used for both input and output. Similarly, recording program information 480 and reproduction program information 4
81 may also be a single line that can be used for both input and output. Also, the recording program information 480 is converted into the recording program signal 482,
Also, the reproduction program information 481 is transmitted to the reproduction program signal 4.
83 may be multiplexed and transmitted. Further, the recording program information 480 may be output by the second demultiplexing unit 413, and the reproduction program information 481 may be output by the demultiplexing unit 4.
04 may be input.

In FIG. 1, the output of the FEC 403 is input to either the demultiplexing means 404 or the second demultiplexing section 413 by the control of the switch 414. However, as shown in FIG. Without the switch 414, F
The output of the EC 403 may be directly connected to the switch 424. In this case, by selecting different organization channels by the demultiplexing unit 404 and the second demultiplexing unit 413, a program of another channel is simultaneously recorded on the recording / reproducing unit 423 while watching the program of the channel of the television 410. That is, so-called back program recording can be performed.

In the embodiment, the first multiplexing / demultiplexing means 404 and the second multiplexing / demultiplexing means 413 have been described as separate circuits, but these two means may be the same circuit block.

Further, only one demultiplexing means is provided,
At the time of recording, the MPEG decoder 405 and the recording / reproducing means 42
3 is transmitted to the recording / reproducing means 42 during reproduction.
3 may be input to the demultiplexing means. In this case, there is an advantage that the circuit scale is small.

[0036]

As described above, even when the information amount of a signal transmitted by using the present invention is different from the information amount that can be recorded on a recording / reproducing apparatus, a digital signal relating to a desired program or the like can be selectively provided. By recording only a signal and recording information necessary for channel selection as a subcode, a recorded program can be immediately reproduced without performing complicated operations during reproduction.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first exemplary embodiment of the present invention.

FIG. 2 is a diagram showing a packet structure and a packet multiplexing method.

FIG. 3 is a diagram showing a procedure for presenting a program when the recording / reproducing apparatus is not reproducing.

FIG. 4 is a block diagram of a recording / reproducing apparatus according to the present invention.

FIG. 5 is a diagram showing a recording track format in the recording / reproducing apparatus.

FIG. 6 is a diagram showing a recording block format in the recording / reproducing apparatus.

FIG. 7 is a diagram showing a procedure of presenting a program when the recording / reproducing apparatus performs reproduction.

FIG. 8 is a first block diagram illustrating a configuration of a second demultiplexing unit;

FIG. 9 is a second block diagram illustrating a configuration of a second demultiplexing unit.

FIG. 10 is a block diagram showing a configuration of a second exemplary embodiment of the present invention.

[Explanation of symbols]

300 Antenna 301 Converter 302 Cable 401 Tuner 402 QPSK demodulation circuit 403 FEC 404
Demultiplexer 405 MPEG2 decoder 406 Video encoder 407 D / A converter 408 OSD 409 Control means 410 Television 413 Second demultiplexer 423 Recording / reproducing means 424 Switches 415, 434 RAM 419 …
ROM 502: input circuit, 503: subcode generation circuit, 50
5: Recording processing circuit, 506: Reproduction processing circuit, 507: Output circuit, 508: Subcode processing circuit 511: Rotating head, 513: Timing generation circuit

Continuing on the front page (72) Inventor Kenji Katsumata 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Pref. Hitachi, Ltd. Multimedia System Development Headquarters

Claims (8)

[Claims] 1. Receiving means for receiving a signal transmitted by multiplexing video, audio, data, and the like as digital information into one bit string in a predetermined packet format,
In a system comprising a recording and reproducing unit for recording and reproducing the signal received by the receiving unit, the receiving unit receives at least the transmitted digital information, and a channel decoding unit for demodulating the digital information into a bit stream in a predetermined format. Selecting means for selecting the output of the channel decoding means or the output of the recording / reproducing means; extracting a first information packet specified from the bit string selected by the selecting means; and extracting the extracted first information packet A first packet separating unit that outputs a first signal packet indicated by the packet; and a first signal packet such as video, audio, or data output from the packet separating unit is decoded and output as a television signal. Source decoding means, and second information designated from an output bit string of the channel decoding means. A second packet separating unit for extracting a report packet and outputting at least a second signal packet indicated by the extracted second information packet to the recording / reproducing unit; Information packet output means for outputting to the reproduction means, input means for inputting the third information packet reproduced by the recording / reproduction means,
And analyzing the first information packet output from the packet separation unit, the second information packet output from the second packet separation unit, or the third information packet reproduced by the recording / reproduction unit. Control means for controlling the system by means of the recording and reproducing means, when the recording / reproducing means performs recording, the selecting means selects the output of the channel decoding means, and the control means controls the first information packet or the second information packet. Receiving the digital broadcast signal, wherein the selecting means selects the output of the recording / reproducing means at the time of reproduction, and the control means controls the system by the third information packet. A receiving device in a recording / reproducing system. 2. The method according to claim 1, wherein the second information packet is at least
PAT (Program Association Tabl) defined by the MPEG2 standard
e) Packet, one or more PMTs (Program Specifi
c) The second signal packet is a video / audio / audio / video signal defined by at least the PMT.
2. The receiving apparatus according to claim 1, wherein the receiving apparatus is a packet of data or the like. 3. A signal transmitted by multiplexing video, audio, data, and the like as digital information into one bit string of a predetermined packet format is received and demodulated, and a designated information packet is extracted from the bit string of the demodulated signal. A receiving unit that outputs a signal packet indicated by the extracted information packet and the information packet; and a recording and reproducing unit that records and reproduces a signal received by the receiving unit. Signal input means for inputting the signal packet output by the receiving means, information input means for inputting the information packet, and recording the recording signal packet input by the signal input means in a first area on a recording medium; The recording information packet input by the information input means is transferred to a second area and / or a first area on the recording medium. Recording means for recording; reproducing means for reproducing the recording medium; signal packet processing means for generating and outputting a reproduced signal packet from a signal reproduced in the first area by the reproducing means; An information packet processing means for generating and outputting a reproduced information packet from a signal reproduced in the second area or the first area; and a timing for recording the first area and the second area by the recording means. A recording / reproducing apparatus in a digital broadcast signal receiving / recording / reproducing system, comprising: timing generating means for controlling and reproducing the first area and the second area. 4. The information packet includes at least MPEG2
PAT (Program Association Table) packet specified by the standard, one or more PMTs (Program Specific In
4. The digital broadcast signal receiving / recording / reproducing system according to claim 3, wherein the signal packet is a packet of at least video, audio, data and the like defined by the PMT. apparatus. 5. A receiving means for receiving a signal transmitted by multiplexing video, audio, data and the like as digital information into one bit string of a predetermined packet format,
In a system comprising a recording and reproducing unit for recording and reproducing the signal received by the receiving unit, the receiving unit receives at least the transmitted digital information, and a channel decoding unit for demodulating the digital information into a bit stream in a predetermined format. Selecting means for selecting the output of the channel decoding means or the output of the recording / reproducing means; extracting a first information packet specified from the bit string selected by the selecting means; and extracting the extracted first information packet A first packet separating unit that outputs a first signal packet indicated by the packet; and a first signal packet such as video, audio, or data output from the packet separating unit is decoded and output as a television signal. Source decoding means, and second information designated from an output bit string of the channel decoding means. A second packet separating unit for extracting a report packet and outputting at least a second signal packet indicated by the extracted second information packet to the recording / reproducing unit; Information packet output means for outputting to the reproduction means, input means for inputting the third information packet reproduced by the recording / reproduction means,
And analyzing the first information packet output from the packet separation unit, the second information packet output from the second packet separation unit, or the third information packet reproduced by the recording / reproduction unit. Control means for controlling the system by means of the second control means;
Signal input means for inputting the second signal packet, information input means for inputting the second information packet, and recording the recording signal packet input by the signal input means in a first area on a recording medium, Recording means for recording the recording information packet input by the input means in a second area and / or a first area on the recording medium; reproducing means for reproducing the recording medium; A signal packet processing means for generating and outputting a reproduction signal packet from a signal reproduced in the area, and a reproduction information packet generated from the signal reproduced in the second area or the first area by the reproduction means; Information packet processing means for outputting at least to the receiving means as an information packet of No. 3,
Timing generating means for controlling the timing at which the recording means records the first area and the second area and controlling the timing for reproducing the first area and the second area by the reproducing means. When the recording / reproducing means performs recording, the selecting means selects the output of the channel decoding means, the control means controls a system by the first information packet or the second information packet, Wherein the selecting means selects the output of the recording / reproducing means, and the control means controls the system by the third information packet. Playback device. 6. The second information packet includes at least
PAT (Program Association Tabl) defined by the MPEG2 standard
e) Packet, one or more PMTs (Program Specifi
c) The second signal packet is a video / audio / audio / video signal defined by at least the PMT.
6. A receiving apparatus and a recording / reproducing apparatus in a digital broadcast signal receiving / recording / reproducing system according to claim 5, wherein the receiving apparatus is a packet of data or the like. 7. The method according to claim 1, wherein the first information packet and the second information packet are independently selected.
A receiving device in the digital broadcast signal receiving and recording / reproducing system according to claim 2. 8. The method according to claim 5, wherein the first information packet and the second information packet are independently selected.
7. A receiving apparatus and a recording / reproducing apparatus in the digital broadcast signal receiving / recording / reproducing system according to claim 6.