JPH0470289A - Multiplex transmission system and reception reproduction system for television signal and information signal - Google Patents

Abstract

PURPOSE:To obtain more convenience by presenting selectively various kinds of video information or sound information. CONSTITUTION:A signal transmitted by a signal multiplex transmission system is received properly and selectively by a receiving side, and after signal processing, a receiver sees and listens to it as a television program or listens to it as the new type information by a still picture and a sound by using a usual television receiver. Further, he can reproduce and watch and listen to it as the information (program) of an interactive multimedia type by supplying these kinds of the information to a computer system, etc., provided with an AV apparatus. by providing such a reception reproducing device, the effective utilization of a transmission line can be attained as well.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a signal multiplexing transmission method using a television signal transmission path and its reception and regeneration method, and in particular to a signal multiplexing transmission method using a transmission path for television signals and a reception and regeneration method thereof. The system efficiently transmits as many different kinds of information programs as possible, and selectively presents video and audio information from the multiplexed information programs on the receiving side.
The present invention relates to a signal multiplex transmission system and its reception/reproduction system that can be configured to provide greater convenience for receivers and information users who view and listen to the signal.

(Conventional technology) Broadcasting has two advantages: ``wide-area simultaneity,'' which allows programs with the same content to be viewed simultaneously across the country, and ``immediacy,'' which allows produced programs such as news and sports broadcasts to be broadcast immediately. It is an extremely excellent mass media, and has always played the role of the standard-bearer for the news media of its time, including radio, television, and FM broadcasting. These media are currently in a mature stage. However, if you want to see higher-quality images, listen to higher-quality audio programs, select and watch more programs, and freely watch them whenever you want.
There are various demands on the viewer side, such as -----------.

In order to meet these needs, new standards of television (high-definition) and audio broadcasting (PCM audio broadcasting), new types of services (text broadcasting, facsimile broadcasting, etc.)
By using new transmission channels (satellite broadcasting) and signal multiplexing technology, new broadcasting media has been developed or is being developed to meet the diverse needs of these viewers.

(Problem to be solved by the invention) Among the new technologies mentioned above, the basic system of high-definition has already been established, and the high-quality image signal, which has five times more information than the current NTSC system, can be transmitted in a time-division manner. A technique (MUSE method) for compressing and transmitting multiple subsampling bands has been developed, and a technique for transmitting this band-compressed signal using satellite broadcasting is also being established.

On the other hand, terrestrial broadcasting that uses signal multiplexing transmission technology includes teletext broadcasting, facsimile multiplexing broadcasting, and still image multiplexing broadcasting. Various methods have been developed or are being developed, such as methods for time-division multiplexing of signals and methods for simultaneously transmitting a large number of still images by using all the transmission capacity of existing television video signals.

In addition to the development of new technologies mentioned above, there is currently no way to distribute or broadcast various types of information that are useful to many regions and to many types of recipients, especially using communication satellites and broadcasting satellites. The system has reached the stage where it is commercialized. In realizing these systems, it is required to utilize signal transmission paths using expensive satellites as effectively as possible.

Therefore, an object of the present invention is to efficiently transmit as many different types of information programs as possible using existing television signal transmission channels, and to provide methods for using the various information programs on the receiving side. The system configuration is designed to selectively present video and audio information after receiving and processing the signal in a way that is suitable for the usage format, and to provide greater convenience for the receiver and information user who view the information. The purpose of the present invention is to provide a multiplex transmission system for television signals and information signals, and a reception and reproduction system for the same.

(Means for Solving the Problems) In order to achieve the above object, a first television signal information signal multiplex transmission system according to the present invention uses a transmission system according to a television standard system to transmit television signals and information signals. In multiplexing and transmitting information signals, in the signal format on the time axis of the video signal of the television standard system,
One sequence consists of four fields, the first and third fields of which contain video signals of corresponding fields of the television signal constituting the television program, and the second and fourth fields of which contain the video signals of the corresponding fields of the television signal constituting the television program. At least one information signal of an image signal, a digital audio signal encoded in a video signal format, and a digital data signal encoded in a video signal format for configuring another information program different from the television program. and continue the sequence to form a series of signals equivalent to the video signal format, and also transmit an audio signal in a standard format constituting the television program. It is.

Further, a second television signal information signal multiplex transmission system according to the present invention uses a transmission system based on a television standard system for satellite broadcasting to multiplex and transmit a television signal and an information signal. In the video signal of the television standard format, one sequence consists of four fields in the signal format on the time axis, and the first and third fields in the sequence are the corresponding fields of the television signal. The second field accommodates an image signal constituting a first type of information program among the information signals, and the fourth field accommodates an image signal constituting a second type of information program. A signal, a digital audio signal encoded in a video signal format, and a digital data signal encoded in a video signal format. In addition, in the audio signal of the satellite broadcasting television standard system, in the multiplex frame structure of the encoded digital signal, two channels of the four A-mode audio channels are Accommodates stereo audio signals or mono 2-channel audio signals,
The area of the signal capacity in which encoded digital data audio signals and digital signals other than the two channels of A-mode audio are to be accommodated is rearranged, and a plurality of audio channels are provided therein to accommodate a plurality of the first and second audio channels. A series of encoded digital audio signals are formed by accommodating audio signals for information programs of the type, and these video signal format signals and the encoded digital audio signals are simultaneously transmitted. This is a characteristic feature.

Furthermore, the first television signal information signal reception and reproduction method according to the present invention receives the signals transmitted by the first multiplex transmission method of the present invention, and sequentially selects a series of received signals in the video signal format. The video signals of the first field and the third field are extracted from the video signals of the first field and the third field, and the television video signal constituting the television program is restored using this and a field interpolation signal obtained from this through a field memory device. At the same time, the information signals of the second field and the fourth field are temporarily stored in a memory device, and the information signals constituting the program are reproduced and outputted by reconfiguring them and reproducing specific information according to the selection command. It is characterized in that it allows viewing of television programs or selective viewing of specific information programs.

Furthermore, the second television signal information signal reception and reproduction method according to the present invention receives the signal transmitted by the second multiplex transmission method of the present invention, and sequentially reproduces a series of received signals in the video signal format. The first field and third field video signals are extracted from the encoded digital audio signal, and the television program is composed of this and a field interpolation signal obtained from the first field and third field video signals via a field memory device. A of the encoded digital audio signal while restoring the television video signal.
The two channels of mode audio are extracted and decoded, and the audio and the restored television video signal are output as a received and viewed television program, while A desired image signal constituting the first type information program is intermittently extracted from the two-field image signals, interpolated via a field memory device, and reproduced as a continuous video signal; At the same time, a desired audio channel is extracted and decoded from the multiple channels of audio signals rearranged and accommodated in the encoded digital audio signal, and this audio is combined with the continuously reproduced video signal. At the same time, it is output as a first type information program to be viewed as a still picture audio program in television format, and further, among the received sequential video signal format signals, the fourth field signal is selected from among the signals in the fourth field. Desired image signals, audio signals, and data signals constituting the second type of information program are extracted, stored in a memory device, reconfigured, and reproduced according to selection instructions, thereby creating an interactive multimedia program. output as a second type of information program to be viewed according to the program format, allowing viewing of a television program or selective viewing of an information program including a specific still image audio program and an interactive multimedia program; It is characterized by the following.

(Example) The specific signal format of the transmission signal according to the present invention is based on the standard television format used in general television broadcasting, and the signal format is modified to meet the purpose of the present invention. However, the signal multiplexing transmission method according to the present invention does not require any significant changes in the transmission path of conventionally used general television broadcasting (or video signal transmission equivalent to television broadcasting). can be applied. In other words, since we are trying to maintain compatibility in the transmission path, it is not limited to the current satellite transmission path, but can be used for general terrestrial television broadcasting or CA
The system of the present invention can also be applied to a cable television transmission line such as a TV.

In the system of the present invention, in the signal format on the time axis of a normal television video signal, the following four fields are treated as one division, and this is named one sequence (in the Japanese standard television, there are 17 fields.
The duration is 60 seconds, and one sequence is 1/15 second. 1st
(see figure). The first (first) field and the third field in one sequence are the first and third fields that are thinned out every other field from the video signal of a normal television program (video program). Assign the corresponding signal. The second and fourth fields contain a signal extracted from a specific field signal from other still image programs (plural) that are completely different from this television program, or a signal converted into a format equivalent to this field signal. field-packed audio signals and digital signals (see Figure 3).

As an example of a composite program service, the types of still image programs to be assigned to the second field and the fourth field in the sequence are different for convenience of use. In other words, the first type of still image program is assigned to the second field, and this is a "real-time type J
It is a program of. The fourth field is assigned to the second type of still image program, which is a so-called "batch transmission type" program, which must be received and recorded once on the receiving side, and then selectively and interactively played back from the storage device. This is a program format that allows for a wide variety of program viewing formats.

Each field in the sequence is attached with various identification and control signals necessary for selective reception and signal processing ρ on the receiving side. In other words, an identification/control signal is superimposed (or inserted) on a specific line of a field signal (standard television consists of 262.5 line signals), and the content of the signal being transmitted in that field is determined. (See Figure 2).

In addition, the blanking period in the television video signal is
It is possible to transmit various information signals that can be superimposed, such as various synchronization signals, control signals, test signals, and text broadcasting (digital data broadcasting), which require continuity, while maintaining the same format as conventional television signals ( For example, the character multiplex signal shown in the first figure).

On the other hand, the transmission of audio signals for television programs and still image programs is based on the signal transmission method for satellite broadcasting among the standard television methods.
Modify the assignment as follows (see Figures 4 and 5).

In the multiplex frame structure of digital signals in the digital audio subcarrier system for satellite television,
Of the standard A-mode 4-channel audio, 2 A-mode audio channels are allocated and accommodated as they are the audio signals (stereo or mono 2 channels) of the normal television program, and other areas (the A-mode audio 2
The area that should accommodate A mode 2 channels of digital audio and digital data other than the
20 audio channels of the PCM encoding system are newly provided, and audio signals (multiple channels) for the first type still image programs (multiple channels) are allocated and accommodated therein.

As explained above, the television signal constituting a television program and the various information signals constituting a plurality of various information programs including a wide variety of still image and audio programs are multiplexed and transmitted. On the receiving side, the signals transmitted using this signal multiplex transmission system can be received according to the purpose and used in various forms.

That is, the receiving side selectively receives the signals transmitted by the signal multiplex transmission method according to the present invention, performs signal processing (field interpolation processing of video signals, demodulation of digital audio signals, etc.), and then receives the signals. People can watch television programs using regular television receivers and AV (audio/visual) information equipment, or watch them as information (programs) in a new format with still images and audio, and then use this information. It can be supplied to a computer system or the like with AV equipment and reproduced and viewed as interactive multimedia format information (program).

By providing the above-mentioned receiving and reproducing device, this system can construct a video information transmission service system that is effective in making it possible to utilize a wide variety of advanced AV information. In addition to enabling a wide variety of uses on the receiving side, it also allows multiplex transmission of a wide variety of information at the same time on a television signal transmission line with limited capacity, allowing for effective use of the transmission line. can also be achieved.

A more detailed supplementary explanation of the above-described embodiments will be given below with reference to the accompanying drawings.

FIG. 1 shows a configuration diagram of a 4-field sequence, which is the gist of the present invention, based on the NTSC television standard system.

The MP at the top of the diagram is called a master frame and consists of 10 sub-master frames SMP, and its period is 10 seconds, which is a unit time when multiplexing a large number of information programs.

In the third diagram, all the signals of one field (1/60 second) are schematically represented in one square, and the FDI for each field is 4 fields, 2.3.4, and so on in the horizontal direction. In the NTSC standard, the number of scan lines is 262.5 lines per field. Further, HBL and VBL in the figure represent a horizontal retrace period and a vertical retrace period, respectively. VBL also describes character multiplex signals that are commonly multiplexed, but other identification and control signals in VBL are specific to the method of the present invention, and as described later, the signals inserted here control the 4-field Identification of the field number in the sequence and identification of information programs to be multiplexed are performed.

In the fourth row of the figure, a 1542-minute waveform with an image signal and a 1542-minute waveform with a data signal are listed.
H3 is a horizontal synchronization signal, and CB is a color burst signal.

FIG. 2 shows the relationship between the data line signal format and the identification control signal necessary for the method of the present invention, as well as the contents of the identification control signal.

FIG. 5A shows the relationship between the image field structure and the data line signal, which is the same format as the digital data signal used for conventional character multiplexing. The lower part of the figure (a) shows the signal format for one line. After 56 clock times from the start of the HS pulse, a 16-bit (2-byte) clock run-in CR, an 8-bit (1-byte) framing code FC, and a 14-bit followed by the prefix PFX, followed by a 176-bit data block,
An 82-bit check pit follows. In addition, a total of 272 bits (14 bits of prefix, 176 bits of data block, and 82 bits of check) is a shortened difference set cyclic code (272°190) with error correction capability, so-called BE.
It constitutes an ST system.

Now, in general, it is necessary for identification control signals to maintain extremely high reliability, especially against transmission errors, and from the viewpoint of information transmission, transmission with a high degree of redundancy is preferable. Furthermore, even if the transmission is based on the standard system for text multiplex signals, it is necessary for the receiving side to be able to receive the text easily and with high reliability, regardless of the text multiplex signal reception system.

In the example of the method of the present invention shown in FIGS. 2(b) to (e),
Of the 37 bytes of the data line signal, the clock run-in (B1.B2) for bit synchronization, the framing code (B3) for byte synchronization, and the prefix (B4)
．． Except for part B5), B6 to B7 are assigned to identification control signals different from the character multiplex signal format, but NRZ
This method uses the characteristics of the signal format to make successive bits the same, thereby increasing redundancy and increasing reliability as if the bit rate (clock rate) had been lowered as an information transmission method.

In the example of the identification code of the 4-field sequence shown in FIGS. 2(c) and 2(d), the original data line signal clock (l clock Tc is 364Tc for the television horizontal scanning line, and the data line signals B1 to B37 are 2
This corresponds to the clock rate of 96Te, which is lowered by A times or 1/3 times.

That is, NRZ signal format Teja, 0011.0011--
--- 0101 with tarotsku that is twice as slow as H'yA ---
This corresponds to sending a uniform signal.

01010 with the clock slowed down by A times in Figure 2 (C)
The signal pattern that continues from 1 to 1 is fH, and the pattern that continues from 010101 to 1 with a clock speed reduced to 1/3 is the signal pattern ft.

If signals such as fH and fL with these patterns are sustained for a certain period of time, they can be extracted extremely easily on the receiving side using only a simple tuning circuit, and it is not necessary to use various other complex digital processing circuits. Therefore, it is possible to identify the existence of a pattern of fH,h. Therefore, since the configuration of the 4-field sequence in the present invention is the core configuration of the signal multiplex transmission system according to the present invention, it is required to receive and identify with higher reliability than anything else. In this sense, the pattern of this example is the most suitable.

The information type and program number code portions of Ls to B3□ shown in FIG. 2(e) correspond to the data line signal clock slowed down by %. In other words, 4 bytes are used to represent 1 byte of information, and this 1 byte (8 bits) is used to display and transmit 16 symbols from 0 to F using an expanded Hamming code and error control. We used an extremely reliable method to do so.

An example was shown in which 5-digit hexadecimal type/number information is transmitted in the latter Ls-Elsy portion using this method.

It is an object of the present invention to enable easy reception identification of field identification, information type, program number, etc. on the receiving side without using the regular clock rate of the data line signal. , a system that can receive all kinds of information does not necessarily have to be equipped with a complex information receiving device for all types of information, so it is possible to create a receiving device that can easily receive only a specific desired type of information at a low cost. This is an extremely effective method for manufacturing. Of course, the signal can also be identified by the regular data line signal receiving means, and no additional circuit means is required for receiving the identification control signal.

Next, field pack data (audio) will be explained using FIG.

Although it is naturally possible to transmit audio and other information digitized in the data block (see FIG. 2(a), 176 bits) as data using the regular format of the data line signal, the signal according to the present invention In the multiplex transmission system, mainly line 285 in field 4
Voice and other data are packed and transmitted from line 525 to line 525. The maximum data capacity is 42,416 bits (176 bit data lines x 241 lines), and the information packed here is called "field packed" information. As in this example, if one field pack information is sent in a four-field sequence, the information transmission rate, if considered in real time, is 15 sequences per second (15 field packs per second), which is 42.416 bits. X 15=636.24kb
It will have the information transmission capability of PS.

However, the type of information targeted by the signal multiplexing transmission system according to the present invention (i.e., the information on how to once receive and record, store, reconstruct, and playback/viewing) is limited to audio per field pack (FP). In this case, it is more important to consider how long the audio can be played in real time. In other words, it is 42.416 Kbits, so if it is 32 kbps ADPCM audio, it is about 1.3
This is 2 seconds of audio, and with 5fl), approximately 6.6 seconds of audio can be packed, and with 50fp, approximately 66 seconds of audio can be packed and transmitted. As described later, in a type ■ format information program (a program composed of still images and audio data), if one module is 50 fp, and 5 fp is allocated to the still image and 45 fp to the audio, approximately One minute of audio can constitute one still image audio program module with five images.

These program modules may be connected as appropriate to form a larger information program.

The relationship diagram of modulation frequency versus main carrier frequency deviation shown in Figure 4 is that of current satellite broadcasting, and the signal transmitted from the broadcasting satellite is a signal in a frequency band whose main carrier wave in the 12 GHz band is shown on the horizontal axis of Figure 4. The second television signal and information signal multiplex transmission system according to the present invention does not use this signal transmission path.

The video signal of satellite broadcasting is a signal based on the same NTSC system as terrestrial broadcasting, and its transmission bandwidth is 4.5 MHz, which is slightly wider than 4.2 MH2 of terrestrial broadcasting. The audio signal is PCM (pulse code module)
tion: Pulse code modulation) digital signal.
5.727272 MHz subcarrier is PSK (ph
This is a digital audio subcarrier system signal that is modulated (phase modulation). The transmission bandwidth of audio signals is 20 kHz or 15 kHz, which is wider than that of terrestrial broadcasting. Also, because of PCM, the dynamic range is wide. Note that in addition to the audio signal, independent data signals can be multiplexed onto the audio subcarrier.

Here, the signal multiplexing structure in the digital audio subcarrier for satellite broadcasting will be described in detail using FIG. This is because a part of this part is reorganized to transmit the voice or data necessary for the method of the present invention.

The frame referred to in FIG. 5 is a PCM frame when an audio signal is digitally encoded into a PCM signal. The overall transmission speed of PCM audio and other digital signals is 2.048 Mbit/s, and this signal transmits the aforementioned audio subcarrier (5,727,272 MHz).
is phase modulated (4-phase DPSK). One second of a 2,048 Mbit/second signal (bit stream) is 10
It consists of 00 frames, i.e. 1 frame is 20
There are 48 bits, and one frame is transmitted in 1 ms. ■The allocation of various digital signals within a frame is the frame configuration.

Furthermore, as an actual signal transmission method, the transmission order of each bit is converted according to an interleave matrix (the bits arranged horizontally are read out and transmitted vertically). The standard A-mode audio (see Figure 5(a)) has a sampling frequency of 32 Kf (z quantization bit number IO bits, and 10 bits of information representing an instantaneous value at a certain point in time are distributed in the row (horizontal) direction of the interleave matrix. However, in actual transmission, data is read out one bit at a time in the column (vertical) direction of the interleave matrix, and after transmitting 32 bits in one frame, it returns to the first row and proceeds to the next column, again in the vertical direction. is read out and sent out.

Illustrative example (1) of the frame structure and bit incleaving allocation according to the present invention shown in FIG. S.B.
- An example is shown in which the relationship is perfectly filled with channels based on ADPCM (band division adaptive differential PCM). That is, the audio 3. to be rearranged in the frame structure. Audio 4. The total number of bits accommodated in the independent data area is 1120 bits, which is 20 bits in total for rows and columns.
It is divided. 56kbps high efficiency encoding method (SB-
The original audio based on the ADPCM method is a relatively high-quality audio obtained by sampling 7 kHz band audio at 16 kHz and encoding it with 14-bit linear PCM. This is 64
Bandwidth is compressed to Kbps, and L of the 6 bits on the low frequency side is
By dropping one SB bit, the number of bits is further reduced from 64 kbps to 56 kbps.

32kbps AD of illustrated example (2) shown in FIG. 5(c)
In the case of PCM audio, the transmission rate is 32 kbps, which is 64 kbps with 8 KHz sampling and 8-bit quantization bits, and the bit number of the PCM system is halved by differential PCM, and uses an area in the frame structure of 1120 bits. (It has the capacity to transmit over 20 channels). Rather, 32kbps AD
If PCM audio is 20 channels, standard audio 3. It can be easily accommodated by modifying and rearranging only the audio 4 area (the independent data section remains unchanged).

That is, since there is a total of 640 bits in the audio 3 and audio 4 areas, 32 bits x 20 channels fit perfectly.

An example of a program transmission service format based on the capacity for video, audio, or information data in the embodiments described in detail above is that first, one video program is assigned video to FDI and FD2 of a 4-field sequence. . If a satellite broadcasting transmission path is used, two channels of A mode are assigned to this video audio. These relationships are clear from FIGS. 1 and 5(a).

Next, in a still image program corresponding to the first type of information program, 4
If FD2 of the field sequence is allocated to video, it has the capacity to accommodate a total of 20 channels, for example, an IO channel for programs that transmit images at 1-second intervals, and 10 channels for programs that transmit images at 2-second intervals. As for the audio, 20 channels of multi-channel audio with a new frame configuration according to the present invention of the satellite broadcasting transmission channel can be allocated (see FIGS. 5(b) and 5(c)).

A still image program corresponding to the second type of information program uses a four-field sequence FD4, and accommodates all field-packed video, audio, and data. l
If the module is composed of 50 field packs and three subchannels are provided, the time required to transmit each module is about 10 seconds. In other words, the service format is such that three modules can be transmitted in every 10 second master frame. Of course, this second type of information program is of the received recording and reconfigured viewing type.

Finally, a configuration block diagram as an example of a received signal processing apparatus according to the present invention is shown in FIG. 6, but its details will be omitted.

Although the embodiments of the television signal and information signal multiplex transmission system and its reception and reproduction system according to the present invention have been described in detail above, the present invention is not limited thereto, and includes a transmission path using a broadcasting satellite (O3'). It goes without saying that the present invention can also be applied to a transmission path by a communication satellite (C3), and it will be obvious to those skilled in the art that various modifications and changes can be made within the scope of the present invention.

(Effects of the Invention) The embodiments of the system of the present invention have been described in detail with reference to the drawings, but according to the television signal information signal multiplex transmission system and reception/reproduction system of the present invention, the existing television signal transmission In addition, on the receiving side, the receiving side receives and processes the various information programs in a way that is suitable for each usage method and form. To realize a system that can provide further convenience for receivers and information users who view the information by selectively presenting various types of video information and audio information. is possible.

[Brief explanation of the drawing]

FIG. 1 shows the configuration of a 4-field sequence according to the present invention, FIG. 2 shows the relationship between the data line signal format and the identification control signal, and the contents of the identification control signal, and FIG. 3 shows the data line signal format and the field pack. - Figure 4 shows the signal of the satellite broadcast standard system, Figure 5 shows the signal multiplexing configuration in the digital audio subcarrier for satellite television, and Figure 6 shows the received signal processing according to the present invention. A configuration block diagram of the device is shown. MF...Master frame SMF...Submaster frame VBL...Vertical blanking period HBL...Horizontal blanking period H3...Horizontal synchronization signal CB...Color burst signal FD...Field CR・・・Clock run-in FC・・Framing code PFX・・Prefix

Claims (1)

[Claims] 1. In multiplexing and transmitting television signals and information signals using a transmission system according to the television standard system, in the signal format on the time axis of the video signal according to the television standard system: , four fields constitute one sequence, the first field and the third field contain the video signal of the corresponding field of the television signal constituting the television program, and the second field and the fourth field contain the video signal of the corresponding field of the television signal constituting the television program.
The field contains at least one of an image signal, a digital audio signal encoded in a video signal format, and a digital data signal encoded in a video signal format for configuring another information program different from the television program. One information signal is accommodated and the sequence is continued to form a series of signals equivalent to the video signal format, and an audio signal of a standard format constituting the television program is added and transmitted. Features a television signal information signal multiplex transmission system. 2. Receive the signal transmitted by the multiplex transmission method according to claim 1, extract the video signals of the first field and the third field from among the received sequential signals in the video signal format; and a field interpolation signal obtained from this through a field memory device, the television video signal constituting the television program is restored and output, and the information signals of the second and fourth fields are once stored in the memory device. the information signals constituting a specific information program according to a selection command and outputting the information signals for viewing a television program or selectively viewing a specific information program. A television signal information signal reception and reproduction method characterized by making it possible to. 3. When multiplexing and transmitting television signals and information signals using a transmission system based on the satellite television standard system, the video signal of the satellite broadcast television standard system must be In the signal format, one sequence consists of four fields, and the first and third fields in one sequence contain the video signal of the corresponding field of the television signal, and the second field contains the video signal of the corresponding field of the information signal. The fourth field accommodates an image signal constituting the first type of information program, and the fourth field stores an image signal constituting the second type information program, and a digital audio signal and a video signal encoded in a video signal format. accommodating at least one information signal with a digital data signal encoded in a format and continuing the sequence to form a series of signals equivalent to the video signal format, and In the audio signal, in the multiplexed frame structure of the encoded digital signal, two channels of the four A-mode audio channels accommodate the stereo audio signal or the mono two-channel audio signal of the television signal, and The area of signal capacity that should accommodate encoded digital audio signals and digital data signals other than the two channels of A-mode audio is rearranged, and a plurality of audio channels are provided in this area to accommodate a plurality of first audio channels. A series of encoded digital audio signals are formed by accommodating audio signals for information programs in the form of video signals, and these signals in the video signal format and the encoded digital audio signals are simultaneously transmitted. Television signal information signal multiplex transmission system. 4. Receive the signal transmitted by the multiplex transmission method according to claim 3, and select the first field and the third field from among the received sequential video signal format signals and encoded digital audio signals. Extract the video signal,
Using this and the field interpolation signal obtained from this through the field memory device, the television video signal constituting the television program is restored, and at the same time, the A-mode audio 2 channels in the encoded digital audio signal are restored. is extracted and decoded, and the audio and the restored television video signal are outputted as a received and viewed television program, while the image of the second field of the sequentially received video signal format signal is extracted and decoded. A desired image signal constituting the first type of information program is intermittently extracted from the signal, interpolated via a field memory device, reproduced as a continuous video signal, and simultaneously encoded. A desired audio channel is extracted and decoded from the multiple channels of audio signals rearranged and accommodated in the digital audio signal, and this audio and the continuously reproduced video signal are combined to create a television. output as a first type information program to be viewed as a still picture audio program of the format; The desired image signals, audio signals and data signals constituting the information program are extracted, each stored in a memory device and reconfigured, each reproduced according to a selection command, and viewed in an interactive multimedia program format. output as a second type of information program, allowing viewing of television programs or selective viewing of information programs including specific still image audio programs and interactive multimedia programs; Features television signal information signal reception and reproduction method.