JP7026494B2 - Broadcast material relay system and broadcast material relay method - Google Patents

Description

The present invention relates to a broadcast material relay system that relays broadcast material wirelessly transmitted from a source device.

In order to realize the transmission of broadcast material between remote locations, FPU (Field Pickup Unit) receivers and transmitters are installed at one or more points between the source and destination of the broadcast material, and a relay point is installed. There is an operation method. However, if the FPU is installed in the mountains, which is difficult to control even by remote control, the FPU will operate independently.

FIG. 1 is a diagram showing an outline of a relay operation using an FPU. In the figure, the source transmitter (TX-1) is installed at the point where the broadcast material is transmitted, the destination receiver (RX-2) is installed at the point where the source is transmitted, and the FPU is installed at the point in between. A receiver (RX-1) and an FPU transmitter (TX-2) are installed. The FPU receiver (RX-1) and the FPU transmitter (TX-2) are connected by a standard cable such as DVB-ASI (Digital Video Broadcasting-Asynchronous Serial Interface) used for passing signals to be relayed. Further, a relay FPU control device for controlling the relay operation is arranged between the FPU receiver and the FPU transmitter.

When the FPU receiver receives the signal transmitted from the source transmitter (TX-1), the FPU receiver passes the signal to the FPU transmitter and calculates the reception state such as the received electric field and BER (Bit Error Rate). And output to the relay FPU control device. The relay FPU control device generates transmitter control information for controlling the relay operation based on the information indicating the reception state and outputs the transmitter control information to the FPU transmitter. The FPU transmitter emits (transmits) a signal transmitted from the FPU receiver toward the transmission destination receiver (RX-2) based on the transmitter control information. The relay FPU control device may be built in the FPU receiver.

Japanese Patent Application Laid-Open No. 2003-309536

When relaying to a remote location without remote control / monitoring of the FPU, the FPU operates only on a preset channel. Here, with reference to FIG. 2, consider a case where the same channel as the relay channel is used by a transmitter (TX-x in the figure) whose operation is completely different from the original relay. When the signal arrives at the FPU receiver (RX-1) that performs the relay operation at a reception level that can be decoded even though it is weak, the FPU transmitter (TX-2) installed at the same location should be relayed. The FPU transmitter transmits the broadcast material of a completely different operation. In this way, since the FPU is installed so as to be operated independently, the received signal is relayed regardless of the original purpose or intention. Therefore, there is a possibility that the original operation of the channel used by the FPU for emission and release may be affected.

In order to solve this problem, it is conceivable to utilize the existing technology disclosed in Patent Document 1 as described below.
As shown in FIG. 3, in the FPU compliant with ARIB STD-B33, the transmission parameter is TMCC (Transmission and Multiplexing Configuration and) from the source transmitter so that the FPU receiver automatically performs the demodulation operation. Control) It is transmitted using a carrier, and the identification information of the source transmitter is superimposed on the surplus portion of the TMCC carrier. When installing an FPU that performs relay operation using this technology, the FPU receiver (RX-1) stores the identification information of the source transmitter (TX-1) that is paired with the FPU receiver (RX-1), and transmits the identification information. The relay operation is performed only when the radio wave from the machine is received.

According to the above method, even when the radio wave of another line using the same channel is received by the FPU, if the identification information representing the TX-1 paired with the RX-1 is not superimposed on the TMCC carrier, the relay is relayed. Since it is possible to control so that the relay operation is not performed by determining that it is not necessary, the above problem can be avoided. However, if the transmitter transmitter (TX-1) is replaced with another transmitter (TX-N) for maintenance, a worker will go to the installation location of the FPU receiver and obtain the identification information of the new transmitter. Since it is necessary to store the information in the FPU receiver, there is a concern that the availability of the system will decrease.

The present invention has been made in view of the above-mentioned conventional circumstances, and provides a highly available broadcast material relay system while preventing unintended broadcast material relay. The purpose is.

In order to achieve the above object, in the present invention, the broadcast material relay system is configured as follows. That is, in a broadcast material relay system that relays a broadcast material wirelessly transmitted from a source device using a receiver and a transmitter installed at a relay point, the source device relays the broadcast material together with the broadcast material. When the relay receiver identification information received together with the broadcast material matches the identification information of the own machine, the receiver wirelessly transmits the relay receiver identification information for identifying the receiver used for the broadcast material. It is characterized in that it is transmitted wirelessly by a transmitter.

As a result, when the broadcast material is received by a receiver having the same identification information as the relay receiver identification information transmitted together with the broadcast material, the broadcast material is transmitted from the transmitter at the relay point, which is intended. It is possible to prevent the broadcast material that has not been broadcast from being relayed. In addition, when replacing the source device, it is only necessary to set the relay receiver identification information in the source device after the replacement, and the worker does not have to go to the relay point to work, so the availability of the system is high. It is possible to suppress the decrease.

Here, as an example of the configuration, the transmitting device wirelessly transmits the relay receiver identification information and the identification information of the own device together with the broadcast material, and the receiver identifies the relay receiver received together with the broadcast material. When the information matches the identification information of the own machine, the identification information of the source device may be wirelessly transmitted by the transmitter together with the broadcast material. This makes it possible for the relay destination to grasp from which source the broadcast material was transmitted.

Further, as an example of the configuration, when the relay receiver identification information received together with the broadcast material matches the identification information of the own machine, the receiver wirelessly transmits the identification information of the own machine together with the broadcast material by the transmitter. It may be configured to be transmitted. This makes it possible for the relay destination to grasp the route by which the broadcast material was relayed.

Further, as an example of the configuration, the source device presents a receiver that can be used for relaying the broadcast material, and the identification information of the receiver selected by the operator from the receivers is used as the relay receiver identification information for the broadcast material. It may be configured to be transmitted together with. As a result, the broadcast material can be relayed using the receiver simply by selecting the receiver in the source device.

According to the present invention, it is possible to provide a highly available broadcast material relay system while preventing unintended broadcast material relay.

It is a figure which shows the outline of the relay operation using FPU. It is a figure explaining the problem of the conventional broadcasting material transmission system. It is a figure explaining the problem solution using the prior art. It is a figure explaining the problem-solving solution which concerns on 1st Embodiment of this invention. It is a figure which shows the configuration example of the source equipment which concerns on 1st Embodiment. It is a figure which shows the configuration example of the FPU receiver which concerns on 1st Embodiment. It is a figure which shows the verification example of the identification information by the FPU receiver which concerns on 1st Example. It is a figure explaining the problem-solving solution which concerns on 2nd Embodiment of this invention. It is a figure which shows the configuration example of the source equipment which concerns on 2nd Embodiment. It is a figure which shows the configuration example of the FPU receiver which concerns on 2nd Embodiment. It is a figure which shows the display example by the source device which concerns on 3rd Embodiment. It is a figure which shows the configuration example of the source equipment which concerns on 3rd Embodiment.

A broadcast material transmission system according to an embodiment of the present invention will be described with reference to the drawings.
The broadcast material transmission system according to the present embodiment relays the broadcast material wirelessly transmitted from the source device to the destination device using the FPU receiver and FPU transmitter installed at the relay point. The schematic system configuration is the same as that described with reference to FIG. 1. Hereinafter, a configuration in which the FPU receiver has a built-in function of the relay FPU control device will be described as an example, but the same as that of FIG. May be provided with a relay FPU control device separate from the FPU receiver.

(First Example)
The signal transmitted from the source device, which is the source of the broadcast material, is composed of the main data D and TMCC in frame units. As shown in FIG. 4, in the first embodiment, the TMCC has a bit pattern indicating the setting information of the SYNC pattern and the main data, the TMCC1 having a surplus portion, and the relay receiver identification information arranged in the surplus portion in the TMCC1. It is configured by using TMCC2 having the bit pattern shown. That is, the relay receiver identification information for identifying the FPU receiver used for relaying the broadcast material is superimposed on the surplus portion of the TMCC. When multiple relays are required, a plurality of relay receiver identification information for identifying each of the plurality of FPU receivers used for relay is superimposed on the surplus portion of the TMCC.

FIG. 5 shows a configuration example of the source device 10 according to the first embodiment. The source device 10 includes an encoder 11, a transmission path coding unit 12, a main data modulation unit 13, a TMCC generator 14, an operation unit 15, an identification information storage unit 16, a video processing unit 17, and an LCD (Liquid Crystal Display) unit 18. , OFDM (Orthogonal Frequency Division Multiplexing) frame configuration unit 19, transmission high frequency unit 20, and antenna 21.

The video input (broadcast material data) is compressed by a predetermined encoding method such as MPEG-2 by the encoder 11 to become compressed data Data. This compressed data becomes the main data. Setting information such as modulation mode becomes auxiliary data.
The compressed data Data becomes data Ds by the transmission line coding unit 12. The transmission line coding unit 12 detects, for example, the code 47h existing in the 204W (word) cycle, replaces 47h with B8h every 8 cycles, and performs energy diffusion processing to invert the signal in a specific pattern. Interleave to rearrange the data order, add parity for correction, and create data Ds. Since 1W is 8 bits, B8h exists every 13056 bits.

The data Ds are input to the main data modulator 13. For example, it is mapped for each predetermined data and becomes the main data D. The setting information (correctly, the bit pattern indicating the setting information) that is a condition for creating the main data D is input to the mode setting terminal of the main data modulation unit 13 and the TMCC generation unit 14. The main data modulation unit 13 performs a modulation operation in response to a frame pulse from the TMCC generator 14.

The OFDM frame configuration unit 19 includes a main data D output from the main data modulation unit 13, a TMCC 1 generated from the TMCC generator 14, and a relay receiver identification information output from the identification information storage unit 16. , CP (Continual Pilot), AUX (Auxiliary), and NUML are input, OFDM modulation is performed, and an OFDM signal consisting of a multicarrier having a band of about 17 MHz centered on 130 MHz is output.

The OFDM signal output from the OFDM frame component 19 is sent to the transmission high frequency unit 20, frequency-converted into a microwave signal, power-amplified, and becomes an RF signal. Then, it is transmitted as a radio wave from the antenna 21.

The identification information storage unit 16 stores FPU information indicating the positions and channels of a plurality of FPU receivers at different relay points, and also stores relay receiver identification information for identifying FPU receivers used for relaying broadcast materials. do. The video processing unit 17 displays a screen based on the FPU information stored in the identification information storage unit 16 on the LCD unit 18, and presents the FPU receiver that can be used in this system to the operator. The operator can select the FPU receiver to be used for relaying the broadcast material by operating the operation unit 15. The operation unit 15 is realized by, for example, a touch panel. The selected FPU receiver identification information is stored in the identification information storage unit 16 as relay receiver identification information, and is output to the OFDM frame configuration unit 19 when the broadcast material is transmitted.

FIG. 6 shows a configuration example of the FPU receiver 30 according to the first embodiment. The FPU receiver 30 includes an antenna 31, a reception high frequency unit 32, a separation unit 33, a main data demodulation unit 34, a TMCC decoding unit 35, a transmission path decoding unit 36, a decoder 37, an identification information decoding unit 38, and a device information storage unit 39. , The identification information comparison unit 40, and the transmitter control information generation unit 41 are provided. The FPU receiver 30 is deployed at the relay point together with the FPU transmitters constituting the FPU.

The RF signal of the radio wave that has reached the antenna 31 is input to the reception high frequency unit 32. The reception high frequency unit 32 amplifies a weak signal and converts it into an intermediate frequency signal IF of 130 MHz. This IF signal is input to the separation unit 33.

The IF signal is separated and demodulated into the main data D and TMCC by the separation unit 33. The main data D is input to the main data demodulation unit 34, and the TMCC is input to the TMCC decoding unit 35 and the identification signal decoding unit 38. Further, the frame pulse reproduced based on the information extracted from the input data by the TMCC decoding unit 35 is sent to the main data demodulation unit 34.

The separation unit 33 and the main data demodulation unit 34 perform demodulation with reference to the frame pulse. Further, various setting information extracted by the TMCC decoding unit 35 is input to the mode setting terminal of the main data demodulation unit 34 and used to determine the conditions for creating the output data Ds. The output data Ds of the main data demodulation unit 34 is input to the transmission line decoding unit 36.

The transmission line decoding unit 36 detects, for example, the code of B8h existing in the 13056-bit period, and generates a pattern of reverse energy diffusion from the pulse generated with reference to this position. Next, using this reverse energy diffusion pattern signal, the data Ds are reversely processed, error correction is performed, the compressed data Data is restored, and the compressed data Data is sent to the decoder unit 37. The decoder unit 37 decompresses the restored compressed data Data and returns it to the broadcast material data before compression by the transmitting device. This broadcast material data is passed to the FPU transmitter.

The identification signal decoding unit 38 decodes the relay transmitter identification information from the TMCC. The decoded relay transmitter identification information is input to the identification information comparison unit 40. Further, the device information storage unit 39 stores the identification information of the own machine, and is input to the identification information comparison unit 40.
The identification information comparison unit 40 compares the relay transmitter identification information (identification information X) with the identification information (identification information Y) of the own machine, and determines whether or not they match. Then, if they match, the release OK that permits the release of the broadcast material is output, and if they do not match, the release NG that prohibits the release of the broadcast material is output.

When the transmission / release OK is output from the identification information comparison unit 40, the transmitter control information generation unit 41 generates transmitter control information based on the information indicating the reception state of the signal and outputs the transmitter control information to the FPU transmitter.
The FPU transmitter that has received the transmitter control information processes the broadcast material data passed from the FPU receiver according to the transmitter control information, and transmits (releases) to the destination receiver.

FIG. 7 shows an example of verification of identification information by the FPU receiver 30 according to the first embodiment. Here, as an example of the identification information for identifying the FPU receiver, an 8-byte device ID indicated by an ASCII code is set for each FPU receiver 30. The transmission source device 10 superimposes the device ID of the FPU receiver used for relaying the broadcast material on the TMCC carrier and emits it. The FPU receiver 30 that has received the radio wave compares the device ID superimposed on the TMCC carrier with its own device ID, and determines whether or not the radio wave currently being received is directed to itself. In the example of FIG. 7, since the values of the 5th byte and the 7th byte do not match, it is determined that the FPU receiver 30 is not a broadcast material addressed to itself, and relaying by the FPU transmitter is not performed.

As described above, in the first embodiment, the transmitting device 10 superimposes the device ID of the FPU receiver used for relaying the broadcast material on the TMCC carrier as the relay receiver identification information and wirelessly transmits the broadcast material. When the relay receiver identification information received together with the broadcast material matches the device ID of the own device, the FPU receiver 30 is configured to wirelessly transmit the broadcast material by the FPU transmitter.

(Second Example)
In the second embodiment, the relay receiver identification information is superimposed on the NULL carrier in the TS (Transport Stream) signal for transmitting data such as video and audio. Since the TS signal contains a NULL packet used for stuffing for rate adjustment, the relay receiver identification information is superimposed on the adaptation field of the NULL packet (see FIG. 8). Here, the MAC address that identifies each device is used as the relay receiver identification information. When multiple relays are required, a plurality of relay receiver identification information for identifying each of the plurality of FPU receivers used for relay is superimposed on the NULL packet of the TS signal.

FIG. 9 shows a configuration example of the source device 50 according to the second embodiment. The source device 50 includes an encoder 51, a TS parallel serial conversion unit 52, a FULL packet separation unit 53, a patrol counter regeneration unit 54, an identification information storage unit 55, a stream generation unit 56, a main data modulation unit 57, and an OFDM frame configuration unit. It includes 58, a transmission high frequency unit 59, and an antenna 60.

The video input (broadcast material data) is compressed by a predetermined encoding method such as MPEG-2 by the encoder 51 to become compressed data Data. Here, it is assumed that the TS signal obtained by encoding the video input by the MPEG-2 method is output as the compressed data Data. The TS signal output from the encoder 51 is converted from a parallel signal to a serial signal by the TS parallel serial conversion unit 52, and then separated into a NULL packet and other packets by the NULL packet separation unit 53.

In the NULL packet separated by the NULL packet separation unit 53, the MAC address of the FPU receiver used for relay is written as the relay receiver identification information in the stream generation unit 56. The stream generation unit 56 rewrites the PID of the NULL packet from the original value “1FFF” to the value “1FFD” for transmitting the identification signal, and adds a patrol counter (Continuity Counter) again. After that, the MAC address (12 bytes) of the receiver is written in the adaptation field of this NULL packet. The circulation counter to be re-added to the NULL packet is regenerated by the circulation counter regeneration unit 56. Further, the MAC address of the FPU receiver to be written in the NULL packet is preset in the identification information storage unit 55.

The NUML packet on which the MAC address of the FPU receiver is superimposed is then processed by the main data modulation unit 57, the OFDM frame configuration unit 58, and the transmission high frequency unit 59, and then transmitted from the antenna 60. On the other hand, other packets (other than the NULL packet) separated by the NULL packet separation unit 53 are processed as before. The main data modulation unit 57, the OFDM frame configuration unit 58, and the transmission high frequency unit 59 are the main data modulation unit 13 and the OFDM frame configuration unit 19 (excluding the processing related to TMCC 2) of the source device 10 according to the first embodiment. Since the same operation as that of the transmission high frequency unit 20 and the antenna 21 is performed, a specific description thereof will be omitted.

FIG. 10 shows a configuration example of the FPU receiver 70 according to the second embodiment. The FPU receiver 70 includes an antenna 71, a reception high frequency unit 72, a separation unit 73, a main data demodulation unit 74, a TMCC decoding unit 75, a transmission path decoding unit 76, a decoder 77, an identification information decoding unit 78, and a device information storage unit 79. , The identification information comparison unit 80, and the transmitter control information generation unit 81 are provided.

The antenna 71, the reception high frequency unit 72, the separation unit 73, the main data demodulation unit 74, the TMCC decoding unit 75, the transmission line decoding unit 76, and the decoder 77 are the antenna 31 of the FPU receiver 30 according to the first embodiment. Since the operation is the same as that of the reception high frequency unit 32, the separation unit 33, the main data demodulation unit 34, the TMCC decoding unit 35, the transmission path decoding unit 36, and the decoder 37, specific description thereof will be omitted.

The identification signal decoding unit 78 extracts a packet containing "1FFD" in the PID from the TS signal decoded by the transmission line decoding unit 76, and identifies the relay receiver stored in the adaptation field of the packet. Extract information. The extracted relay transmitter identification information is input to the identification information comparison unit 80. Further, the MAC address of the own machine is stored in the device information storage unit 79, and is input to the identification information comparison unit 40.
The identification information comparison unit 80 compares the relay transmitter identification information (identification information X) with the MAC address (identification information Y) of the own machine, and determines whether or not they match. Then, if they match, a release OK that permits the release of the broadcast material is output, and if they do not match, a release NG that prohibits the release of the broadcast material is output.

When the transmission / release OK is output from the identification information comparison unit 80, the transmitter control information generation unit 81 generates transmitter control information based on the information indicating the reception state of the signal and outputs the transmitter control information to the FPU transmitter.
The FPU transmitter that has received the transmitter control information processes the broadcast material data passed from the FPU receiver according to the transmitter control information, and transmits (releases) to the destination receiver.

As described above, in the second embodiment, the source device 50 superimposes the MAC address of the FPU receiver used for relaying the broadcast material together with the broadcast material on the ULL packet of the TS signal as the relay receiver identification information. The FPU receiver 70 is configured to wirelessly transmit the broadcast material by the FPU transmitter when the relay receiver identification information received together with the broadcast material matches the MAC address of the own machine.

In any of the first and second embodiments, the broadcast material is connected to the FPU receiver only when the broadcast material is received by the FPU receiver having the same identification information as the relay receiver identification information transmitted together with the broadcast material. It is configured to transmit the broadcast material from the FPU transmitter. Therefore, when the FPU receives the broadcast material, it is possible to prevent relaying that deviates from the original purpose or intention. In addition, even when installing an alternative device during maintenance of the source device, the operator simply selects the FPU receiver to be used for relaying with the alternative device, and the relay line is maintained without changing the settings on the FPU side. be able to. In addition, even if the FPU is installed in the mountains where it is unmanned and remote control lines cannot be installed, it is not necessary for workers to go to the installation location to work, so not only can the dispatch cost and period be reduced, but also the installation can be done. It is possible to eliminate the risk of injury to workers due to climbing to a place.

Here, the above configuration should be extended so that the relay destination can grasp (1) from which source the broadcast material was transmitted, or (2) by what route the broadcast material was relayed. You can also.
In order to realize the above (1), the transmitting device wirelessly transmits the relay receiver identification information and the identification information of the own device together with the broadcast material, and the relay receiver identification information received by the FPU receiver together with the broadcast material is used. If it matches the identification information of the own device, the identification information of the source device may be wirelessly transmitted by the FPU transmitter together with the broadcast material.
Further, in order to realize the above (2), when the relay receiver identification information received by the FPU receiver together with the broadcast material matches the identification information of the own machine, the identification information of the own machine is combined with the broadcast material by the FPU. It may be transmitted wirelessly by a transmitter.

In order to transmit the identification information of the source device and the identification information of the FPU receiver together with the broadcast material, it may be superimposed on the TMCC carrier as in the first embodiment, or the TS signal may be superimposed as in the second embodiment. It may be superimposed on the NULL carrier of. Further, the relay receiver identification information, the source device identification information, and the FPU receiver identification information can be transmitted by different methods from each other. That is, one may be superimposed on the TMCC carrier and transmitted, and the other may be superimposed on the NULL carrier of the TS signal and transmitted. However, in order to prevent the device configuration from becoming complicated, it is preferable to transmit each identification information by the same method.

(Third Example)
FIG. 11 is a diagram showing a display example by the source device 90 according to the third embodiment. FIG. 12 is a diagram showing a configuration example of the source device 90 according to the third embodiment.
The transmission source device 90 includes a control terminal 91, a transmission control unit 92, a transmission high frequency unit 93, an antenna 94, and a rotary stand 95.

The control terminal 91 presents a plurality of FPU receivers that can be used for relaying broadcast materials to the operator, and the transmission control unit uses the identification information of the FPU receiver selected by the operator as the relay receiver identification information. Output to 92. Depending on the installation status of the FPU, there may be only one FPU receiver presented to the operator. In this case, the FPU receiver is selected by the operator. The control terminal 91 is a device corresponding to the operation unit 15, the identification information storage unit 16, the video processing unit 17, and the LCD unit 18 of the source device 10 according to the first embodiment.
The transmission control unit 92 superimposes the relay receiver identification information input from the control terminal 91 on the broadcast material by the method described in the first embodiment and the second embodiment.

The broadcast material on which the relay / receiver identification information is superimposed is sent to the transmission high frequency unit 93, frequency-converted into a microwave signal, power-amplified, and becomes an RF signal. Then, it is transmitted as a radio wave from the antenna 94. At this time, the control terminal 91 calculates the rotation angle of the antenna based on the position information of the FPU receiver selected by the operator and the position information of the source device 90 in order to direct the antenna 94 toward the relay point. Then, the rotation angle information is output to the rotation stand 95. The rotary pedestal 95 makes a turn according to the rotation angle information input from the control terminal 91, and directs the antenna 94 toward the relay point. After that, the broadcast material is transmitted (released) from the antenna 94.

The control terminal 91 may present a plurality of FPU receivers that can be used for relaying the broadcast material in a simple list format, but as shown in FIG. 11, the FPU receivers at each relay point are displayed on the map. It is preferable to map and display it. This makes it possible to prevent the operator from erroneously selecting a relay point other than the planned relay point.

As described above, in the broadcast material relay system according to each embodiment, the source device wirelessly transmits the relay receiver identification information for identifying the receiver used for relaying the broadcast material together with the broadcast material, and receives the FPU. When the relay receiver identification information received together with the broadcast material matches the identification information of the own machine, the machine is configured to wirelessly transmit the broadcast material by the FPU transmitter connected to the FPU receiver.

Therefore, when relaying broadcast material without the intervention of an operator, the relay operation according to the original purpose (determined channel, relationship between determined transceiver, transmission between determined points) is surely performed. be able to. In addition, since relaying that deviates from the original purpose can be prevented, the operational efficiency of the entire FPU line can be improved by using the FPU band held by the broadcasting station according to the operation plan. In addition, even if the source device of the broadcast material that is the companion to the relay operation is replaced, the relay line can be opened simply by changing the setting of the source device, and the availability of the relay line network is improved. .. For example, in the method using the above-mentioned conventional technology, it is necessary to change the setting of the FPU receiver, so it takes one day (one required person) to prepare the personnel, tools, and process for the setting change, and the actual setting change. Assuming that it takes 2 days (3 required personnel) for work and operation check, a process for at least 4 people for 3 days is assumed, but these can be reduced in this configuration. In addition, it is possible to eliminate the risk of injury to workers that may occur when climbing a mountain to the place where the FPU is installed.

The configuration of the system, the device, and the like according to the present invention is not necessarily limited to those shown above, and various configurations may be used.
Further, the present invention can also be provided as a method or method for executing the above-mentioned processing, a program for realizing such a method or method, a storage medium for storing the program, or the like.

The present invention can be used in a broadcast material relay system that relays broadcast material wirelessly transmitted from a source device.

10: Source device, 11: Encoder, 12: Transmission line coding unit, 13: Main data modulation unit, 14: TMCC generator, 15: Operation unit, 16: Identification information storage unit, 17: Video processing unit, 18 : LCD section, 19: OFDM frame component section, 20: Transmission high frequency section, 21: Antenna,
30: FPU receiver, 31: antenna, 32: received high frequency part, 33: separation part, 34: main data demodulation part, 35: TMCC decoding part, 36: transmission line decoding part, 37: decoder, 38: identification information Decoding unit, 39: Device information storage unit, 40: Identification information comparison unit, 41: Transmitter control information generation unit,
50: Source device, 51: Encoder, 52: TS parallel serial conversion unit, 53: NULL packet separation unit, 54: Circulation counter regeneration unit, 55: Identification information storage unit, 56: Stream generation unit, 57: Main data Modulation section, 58: OFDM frame component section, 59: Transmission high frequency section, 60: Antenna,
70: FPU receiver, 71: Antenna, 72: Received high frequency part, 73: Separation part, 74: Main data demodulation part, 75TMCC decoding part, 76: Transmission line decoding part, 77: Decoder, 78: Identification information decoding part , 79: Device information storage unit, 80: Identification information comparison unit, 81: Transmitter control information generation unit,
90: Source device, 91: Control terminal, 92: Transmission control unit, 93: Transmission high frequency unit, 94: Antenna, 95: Rotating stand

Claims (5)

In a broadcast material relay system that relays broadcast material wirelessly transmitted from a source device using a receiver and transmitter installed at a relay point.
The source device wirelessly transmits the relay receiver identification information for identifying the receiver used for relaying the broadcast material and the identification information of the own device together with the broadcast material.
The receiver is characterized in that when the relay receiver identification information received together with the broadcast material matches the identification information of its own device, the identification information of the source device is wirelessly transmitted by the transmitter together with the broadcast material . Broadcast material relay system. In the broadcast material relay system according to claim 1,
The receiver is characterized in that, when the relay receiver identification information received together with the broadcast material matches the identification information of the own machine, the identification information of the own machine is wirelessly transmitted by the transmitter together with the broadcast material . Broadcast material relay system. In a broadcast material relay system that relays broadcast material wirelessly transmitted from a source device using a receiver and transmitter installed at a relay point .
The source device wirelessly transmits relay receiver identification information for identifying the receiver used for relaying the broadcast material together with the broadcast material.
The receiver is a broadcast material relay system characterized in that when the relay receiver identification information received together with the broadcast material matches the identification information of the own machine, the identification information of the own machine is wirelessly transmitted together with the broadcast material. .. In the broadcast material relay system according to any one of claims 1 to 3.
The source device is characterized in that it presents a receiver that can be used for relaying the broadcast material, and transmits the identification information of the receiver selected by the operator as the relay receiver identification information together with the broadcast material. Broadcast material relay system. In a broadcast material relay method in which a broadcast material wirelessly transmitted from a source device is relayed using a receiver and a transmitter connected to the receiver.
The source device wirelessly transmits the relay receiver identification information for identifying the receiver used for relaying the broadcast material and the identification information of the own device together with the broadcast material.
When the relay receiver identification information received by the receiver together with the broadcast material matches the identification information of the own device, the receiver wirelessly transmits the identification information of the source device together with the broadcast material by the transmitter. Broadcast material relay method.

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