JP5722655B2 - Multi-channel broadcasting system - Google Patents

Description

  The present invention relates to a multi-channel broadcasting system.

  A system for transmitting contents such as digital signage (Digital Signage) on a digital broadcast wave has been proposed.

  For example, the system disclosed in Japanese Patent Application Laid-Open No. 2010-21900 includes digital signage and information transmission means for transmitting content and control information to the digital signage. The digital signage includes means for receiving terrestrial digital broadcast waves, and the information transmitting means broadcasts content and control information for digital signage on the terrestrial digital broadcast waves.

  In the system of Patent Document 1, with the above configuration, content and control information can be transmitted to a plurality of digital signage terminals without going through a network, so that communication costs can be reduced.

JP 2010-21900 A

  However, in the system described in Patent Document 1, the control information controls the display of content and cannot control the display of video included in the digital TV broadcast, and the video included in the digital TV broadcast. And content cannot be controlled simultaneously.

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a multi-channel broadcasting system that can control the output of digital television broadcasting to a viewing device together with content.

  In order to solve the above problems, a multi-channel broadcasting system according to the present invention includes a multi-channel transmitter that transmits a signal including content and control information simultaneously with a digital television broadcast signal, and a signal output from the multi-channel transmitter. A multi-channel receiver. The multi-channel receiver includes a tuner that outputs a signal of a designated channel from a digital television broadcast signal included in the received signal, a storage unit that stores content included in the received signal, and is included in the received signal And a control unit that controls the tuner based on the control information and controls the output of the signal output from the tuner and the content stored in the storage unit to the viewing device.

  Preferably, the control information includes a command for outputting a signal of a designated channel among the digital television broadcasting of a plurality of channels, and the control unit causes the tuner to output a signal of the designated channel based on the command, and outputs the command. The signal is output to the viewing device.

  Preferably, the storage unit stores a plurality of received contents, and the control information includes an instruction to output a specified content among the plurality of contents stored in the storage unit, and the control unit is based on the instruction The selected content is selected from the plurality of contents stored in the storage unit, read out, and output to the viewing device.

  Preferably, the storage unit stores a plurality of received contents, and the control information is specified from a signal of a specified channel among the digital television broadcasts of a plurality of channels and a plurality of contents stored in the storage unit. The control unit includes a command for outputting the content at the same time. Based on the command, the control unit causes the tuner to output a signal of the specified channel and selects the specified content from the plurality of contents stored in the storage unit. The signal output from the tuner and the selected content are simultaneously output to the viewing device.

  Preferably, the storage unit stores a plurality of received contents, and the control information is specified from a signal of a specified channel among the digital television broadcasts of a plurality of channels and a plurality of contents stored in the storage unit. The control unit includes a command to switch the content with time and output, and based on the command, the control unit causes the tuner to output a signal of the designated channel, and outputs the output signal to the viewing device, or the storage unit Whether to select and read out the designated content from the plurality of contents stored in is switched over in time.

  Preferably, the storage unit stores a plurality of received contents, and the control information outputs a signal of a designated channel of a digital TV broadcast of a plurality of channels for each time period, or a plurality of control information stored in the storage unit Including a time table for outputting the designated content of the content of the content, or outputting the signal of the designated channel of the digital TV broadcast of a plurality of channels and the designated content of the plurality of content at the same time, The control unit causes the tuner to output the signal of the channel specified based on the time table, and outputs the output signal to the viewing device, or the content specified from the plurality of contents stored in the storage unit Select and read and output to the viewing device, or let the tuner output the signal of the specified channel And selects and reads the specified content from a plurality of contents stored in the storage unit and outputs to simultaneously viewing apparatus and a content with the read signal output from the tuner.

  Preferably, the control unit outputs a signal related to the emergency notification output from the tuner to the viewing device when the command for instructing the emergency notification is included in the digital television broadcast signal.

  Preferably, the multi-channel broadcasting system includes a plurality of multi-channel receivers, and the control information and the content are transmitted with an address specifying a destination multi-channel receiver among the plurality of multi-channel receivers, The control unit stores the received content in the storage unit when the address attached to the received content is the address of the multi-channel receiver including the control unit, and the control unit is attached to the received control information. If the address is the address of the multi-channel receiver including the control unit, the command included in the control information is executed.

Preferably, the content of the control information is different for each multi-channel receiver.
Preferably, the content is an electronic advertisement.

  Preferably, the multi-channel transmitter includes a millimeter-wave transmitter that converts a digital television broadcast signal and a signal including content and control information into a millimeter-wave band signal and transmits the multi-channel receiver. It includes a millimeter wave receiver that receives a millimeter wave band signal output from the transmitter and converts it to a signal of a frequency before being converted into the millimeter wave band.

  Preferably, the multi-channel transmitter outputs a digital television broadcast signal and a signal including content and control information to a coaxial cable, transmits the signal output from the coaxial cable, and the multi-channel receiver is a coaxial cable. A signal including the transmitted content and control information is received.

  According to the present invention, it is possible to control the display of TV broadcast together with content.

It is a figure showing the structure of the multi-channel communication system of 1st Embodiment. It is a figure showing the structure of the command transmitted in 1st Embodiment. (A) is a figure showing the example of an image command. (B) is a figure showing the example of a control command. (A) is a figure showing the example of a control command. (B) is a figure showing the example of the screen displayed by the control command of (a). (A) is a figure showing the example of a control command. (B) is a figure showing the example of the screen displayed by the control command of (a). (A) is a figure showing the example of a control command. (B) is a figure showing the example of the screen displayed by the control command of (a). (A) is a figure showing the example of a control command. (B) is a figure showing the example of the screen displayed by the control command of (a). (A) is a figure showing the example of a control command. (B) is a figure showing time table # 1 contained in the control command of (a). (C) is a figure showing the example of the screen displayed by the control command of (a). It is a figure showing the structure of the multi-channel communication system of the modification of 1st Embodiment. It is a figure showing the structure of the multi-channel communication system of 2nd Embodiment. It is a figure showing the structure of the command transmitted in 2nd Embodiment. (A) is a figure showing the example of an image command. (B) is a figure showing the example of a control command. (C) is a diagram illustrating an example of an image command. (A) is a figure showing the control command to multichannel receiver # 1. (B) is a figure showing the control command to multichannel receiver # 2. (C) is a figure showing the control command to multichannel receiver # 3. (D) is a figure showing the control command to multichannel receiver # 4. Displayed on multi-channel receiver # 1, multi-channel receiver # 2, multi-channel receiver # 3, and multi-channel receiver # 4 by the control commands in FIGS. 13 (a), (b), (c), and (d) It is a figure showing the example of the screen performed. It is a figure showing the structure of the multi-channel communication system of 3rd Embodiment. (A) is a figure showing the example of the screen displayed before receiving an emergency notification. (B) is a figure showing the example of the screen displayed after receiving an emergency notification.

  Embodiments of the present invention will be described below with reference to the drawings. Note that the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated.

[First Embodiment]
FIG. 1 is a diagram illustrating a configuration of a multi-channel communication system according to the first embodiment.

  The multi-channel communication system 33 includes a multi-channel transmitter 34 and a multi-channel receiver 37.

The multi-channel transmitter 34 includes a signage server 5 and a transmission unit 36.
The signage server 5 includes a signage image creation storage unit 7, a control information creation storage unit 9, and a transmission control unit 8.

  The signage image creation storage unit 7 creates and stores signage image (electronic advertisement) data as content. The signage image creation storage unit 7 can create signage image data by acquiring content in the external content server 1 via the Internet 2 and using the content.

The control information creation storage unit 9 creates and stores control information.
The transmission control unit 8 outputs an Ethernet (registered trademark) frame including a control command including control information and / or an image command including signage image data to the transmission unit 36 via the Ethernet (registered trademark) cable 96 at an appropriate timing. To do. For example, the transmission control unit 8 may output a control command immediately in response to an instruction from the user with a mouse.

  The transmission unit 36 includes an Ethernet (registered trademark) frame filtering unit 10, a modulator 11, a mixer 13, and a millimeter wave transmitter 32.

  The Ethernet (registered trademark) frame filtering unit 10 extracts a control command and / or an image command from the Ethernet (registered trademark) frame output from the signage server 5.

  The modulator 11 modulates data including a command (image command) including signage image data and a command (control command) including control information using a method such as QAM (Quadrature Amplitude Modulation) modulation, for example. Converts to a signal of a vacant channel (frequency) of broadcasting.

  The mixer 13 mixes the multi-channel digital TV broadcast signal from the broadcast station 14 and the signal from the modulator 11 and outputs the mixed signal to the millimeter wave transmitter 32.

  The millimeter wave transmitter 32 converts a digital TV broadcast signal of a plurality of channels into a millimeter wave band (for example, 60 GHz) signal and transmits it. When there is an output from the modulator 11, the millimeter wave transmitter 32 converts a digital TV broadcast signal of a plurality of channels and a signal including an image command and a control command into a millimeter wave band (for example, 60 GHz) signal. To send. In the embodiment of the present invention, since signals are transmitted in the millimeter wave band capable of transmitting a large amount of data in this way, a digital TV broadcast signal of a plurality of channels and a signal including an image command and a control command are simultaneously transmitted. Can be sent.

  The multi-channel receiver 37 includes a millimeter wave receiver 35, a duplexer 16, a tuner 17, a demodulator 20, an image data storage unit 21, a control information storage unit 18, a control unit 19, and a video composition. The unit 22 and the monitor 42 are provided.

  The millimeter wave receiver 35 receives a millimeter wave band signal output from the multi-channel transmitter 34, converts it to a signal of a frequency before being converted to the millimeter wave band, and outputs the signal to the branching filter 16.

The duplexer 16 receives the millimeter wave receiver 35 and distributes the converted signal.
The tuner 17 outputs the TV broadcast signal of the designated channel based on the control data stored in the control data storage unit among the TV broadcast signals of a plurality of channels included in the signal output from the duplexer 16. .

  The demodulator 20 demodulates the modulated signal including the image command and the control command included in the signal output from the duplexer 16 and converts the demodulated signal into a digital signal.

  The image data storage unit 21 stores signage image data included in the image command output from the demodulation unit.

  The control information storage unit 18 stores control information included in the control command output from the demodulation unit.

  The control unit 19 controls the tuner 17 based on the control information stored in the control information storage unit 18, and monitors the signage image data stored in the signal output from the tuner 17 and the image data storage unit 21. Control the output to.

  The video composition unit 22 receives the signal output from the tuner 17 and the signage image data output from the image data storage unit 21, and outputs to the monitor 42 either one or both simultaneously.

  The monitor 42 is a viewing device, and displays an output signal of the tuner 17 and / or signage image data output from the video composition unit 22.

(command)
FIG. 2 is a diagram illustrating a configuration of a command transmitted in the first embodiment.

  As shown in FIG. 2, this command includes an identifier representing the distinction between image data or control information and image data or control information.

(Example of image command)
FIG. 3A shows an example of an image command.

  As shown in FIG. 3A, this image command includes an identifier representing image data and signage image data # 7 as image data.

  The control unit 19 stores the signage image data # 7 included in the image command in the image data storage unit 21 in accordance with the identifier representing the image data.

(Example of control command)
FIG. 3B is a diagram illustrating an example of a control command.

  As shown in FIG. 3B, this control command includes an identifier indicating that it is control information, and a “command to output digital TV broadcast channel # 2” as control information.

  The control unit 19 stores, in the control information storage unit 18, a “command for outputting the digital TV broadcast channel # 2”, which is control information included in the control command, in accordance with an identifier representing the control information.

(Control example 1)
FIG. 4A is a diagram illustrating an example of a control command.

  This control command includes an identifier representing control information and a “command to output digital TV broadcast channel # 6” as control information.

  The control unit 19 stores a command included in the control information in the control information storage unit 18 according to the identifier representing the control information. Based on this command, the control unit 19 causes the tuner 17 to output the signal of channel # 6 and causes the monitor 42 to output the output signal of the tuner 17 output via the video composition unit 22.

  FIG. 4B is a diagram illustrating an example of a screen displayed by the control command in FIG.

(Control example 2)
FIG. 5A is a diagram illustrating an example of a control command.

  This control command includes an identifier indicating control information and a “command to output signage image # 4” as control information.

  The control unit 19 stores a command included in the control information in the control information storage unit 18 according to the identifier representing the control information. Based on this command, the control unit 19 selects and reads signage image data # 4 from a plurality of signage image data stored in the image data storage unit 21, and monitors 42 through the video composition unit 22. To output.

  FIG. 5B is a diagram illustrating an example of a screen displayed by the control command in FIG.

(Example 3 of control)
FIG. 6A is a diagram illustrating an example of a control command.

  This control command includes an identifier representing control information and a “command to simultaneously output digital TV broadcast channel # 3 and signage image # 3” as control information.

  The control unit 19 stores a command included in the control information in the control information storage unit 18 according to the identifier representing the control information. Based on this command, the control unit 19 causes the tuner 17 to output a signal of channel # 3 and selects “signage image data # 3” from the plurality of signage image data stored in the image data storage unit 21. The signal output from the tuner 17 by the video composition unit 22 and the signage image data read from the image data storage unit 21 are combined and output to the monitor 42 at the same time. For example, if a sports program channel is used as the digital TV broadcast channel # 3 and a signage image regarding sports equipment or an event is used as the signage image # 3, the audience's attention can be drawn and the advertising effect is increased. be able to.

  FIG. 6B is a diagram illustrating an example of a screen displayed by the control command in FIG.

(Example 4 of control)
FIG. 7A shows an example of a control command.

  This control command includes an identifier indicating control information, and a “command to switch and output digital TV broadcast channel # 3 and signage image # 3 every 10 minutes” as control information.

  Based on the command included in the control information, the control unit 19 causes the tuner 17 to output a signal of channel # 3 and outputs the signal to the monitor 42, and is stored in the image data storage unit 21. The process of selecting and reading “signage image data # 3” from the plurality of signage image data and outputting it to the monitor 42 is switched every 10 minutes.

  FIG. 7B is a diagram illustrating an example of a screen displayed by the control command in FIG.

(Example 5 of control)
FIG. 8A is a diagram illustrating an example of a control command.

  This control command includes an identifier representing control information and “time table # 1” as control information.

  FIG. 8B shows a time table # 1 included in the control command of FIG.

  “Digital TV broadcast channel # 2” is output during the “10:00 to 11:00” time zone, and “digital TV broadcast channel # 2” is output during the “11:00 to 12:00” time zone. 6 ”,“ signage image # 4 ”is output in the time zone“ 12:00 to 13:00 ”, and“ signage image # 4 ”is output in the time zone“ 13: 00-14: 00 ”. 6 ”is output, and“ digital TV broadcast channel # 3 and signage image # 3 ”are simultaneously output during the time period“ 14:00 to 15:00 ”.

  Based on the time table included in the control information, the control unit 19 causes the tuner 17 to output a signal of channel # 2 during the time zone “10: 0 to 11:00” and passes through the video composition unit 22. The monitor 42 outputs the output signal.

  The control unit 19 causes the tuner 17 to output the signal of channel # 6 during the time period “11:00 to 12:00” and causes the monitor 42 to output the signal output via the video composition unit 22.

  The control unit 19 selects and reads signage image data # 4 from the plurality of signage image data stored in the image data storage unit 21 during the time period “12:00 to 13:00” The image is output to the monitor 42 via the video composition unit 22.

  The control unit 19 selects and reads signage image data # 6 from the plurality of signage image data stored in the image data storage unit 21 during the time period “13: 00-14: 00” The image is output to the monitor 42 via the video composition unit 22.

  The control unit 19 causes the tuner 17 to output a signal of channel # 3 during the time period “14:00 to 15:00”, and also from the plurality of signage image data stored in the image data storage unit 21. “Signage image data # 3” is selected and read out, and the signal output from the tuner 17 by the video combining unit 22 and the signage image data read out from the image data storage unit 21 are combined and output to the monitor 42 at the same time. .

  FIG. 8C is a diagram illustrating an example of a screen displayed by the control command in FIG.

(Summary)
As described above, according to the present embodiment, a digital TV broadcast signal and a signage image and control information for controlling the display are transmitted to the receiver. The broadcast output to the monitor can be switched over time or output simultaneously.

[Modification of First Embodiment]
FIG. 9 is a diagram illustrating a configuration of a multi-channel communication system according to a modification of the first embodiment.

  In the multi-channel communication system of this modification, the multi-channel transmitter 34 and the multi-channel receiver 37 are connected by a coaxial cable 40.

  The transmitter 12 transmits digital TV broadcast signals of a plurality of channels through a coaxial cable. When there is an output from the modulator 11, the transmitter 12 outputs a digital TV broadcast signal of a plurality of channels and a signal including an image command and a control command to the coaxial cable 40. The coaxial cable 40 transmits the signal output from the transmitter 12.

  The receiver 45 receives the signal output from the multi-channel transmitter 34 transmitted through the coaxial cable 40 and outputs the signal to the duplexer 16.

  As described above, also in this modified example, since a large amount of data can be transmitted through the coaxial cable, similarly to the first embodiment, the receiver temporally outputs the digital TV broadcast together with the signage image. Or output simultaneously.

[Second Embodiment]
FIG. 10 is a diagram illustrating the configuration of the multi-channel communication system according to the second embodiment.

  Referring to FIG. 10, the multi-channel communication system includes a plurality of multi-channel receivers # 1 to # 4 (37-1 to 37-4). Each multi-channel receiver # 1 to # 4 (37-1 to 37-4) is designated by an address.

(command)
FIG. 11 is a diagram illustrating a configuration of a command transmitted in the second embodiment.

  As shown in FIG. 11, this command includes a destination receiver address, an identifier representing the distinction between image data or control information, and image data or control information.

  The control unit 19 of each multi-channel receiver, when the destination receiver address of the received image command is the address of the multi-channel receiver including the control unit 19, the image data (signage) included in the received image command. Image data) is stored in the image data storage unit 21.

  The control unit 19 of each multi-channel receiver controls the control information included in the received control command when the destination receiver address of the received control command is the address of the multi-channel receiver including the control unit 19 The instruction stored in the information storage unit 18 and included in the control information is executed.

(Example of image command)
FIG. 12A shows an example of an image command.

  As shown in FIG. 12 (a), this image command includes the address of multi-channel receiver # 1 as the destination receiver address, an identifier indicating that it is image data, and signage image data # 1 as image data. including.

  The control unit 19 of the multi-channel # 1 stores the signage image data # 1 included in this image command in the image data storage unit 21 in accordance with the destination receiver address and the identifier representing the image data.

(Example of control command)
FIG. 12B is a diagram illustrating an example of a control command.

  As shown in FIG. 12 (b), this control command includes the address of the receiver # 2 as the destination receiver address, an identifier indicating control information, and “digital TV broadcast channel # 2 as control information”. Command to output ".

  The control unit 19 of the multi-channel # 2 stores the “command for outputting the digital TV broadcast channel # 2” included in this control command in the control information storage unit 18 according to the destination receiver address and the identifier representing the control information. Execute this instruction.

(Example 2 of image command)
FIG. 12C is a diagram illustrating an example of an image command.

  As shown in FIG. 12C, this image command includes a broadcast address as the destination receiver address, and includes an identifier representing image data and signage image data # 1 as the image data.

  The control units 19 of all the multi-channel receivers connected to the multi-channel transmitter 34 store the signage image data # 1 included in this image command in accordance with the identifier representing the destination receiver address and control information. To remember.

(Example of control)
FIG. 13A shows a control command to multi-channel receiver # 1, FIG. 13B shows a control command to multi-channel receiver # 2, and FIG. ) Represents a control command to the multi-channel receiver # 3, and FIG. 13D represents a control command to the multi-channel receiver # 4.

  That is, the command to the multi-channel receiver # 1 is “command to output the digital TV broadcast channel # 4”, and the command to the multi-channel receiver # 2 is “command to output the signage image # 2”. Yes, the instruction to the multi-channel receiver # 3 is “an instruction to output the signage image # 4”, and the instruction to the multi-channel receiver # 4 is “the digital TV broadcast channel # 6 and the signage image # 2”. It is an instruction to output at the same time.

  FIG. 14 shows a multi-channel receiver # 1, a multi-channel receiver # 2, a multi-channel receiver # 3, and a multi-channel receiver according to the control commands in FIGS. 13 (a), (b), (c), and (d). It is a figure showing the example of the screen displayed on # 4.

  As described above, in the second embodiment, the control information and the signage image are transmitted with a destination, so that different screens can be displayed for each multi-channel receiver.

[Third Embodiment]
FIG. 15 is a diagram illustrating a configuration of a multi-channel communication system according to the third embodiment.

  Referring to FIG. 15, this multi-channel communication system is different from the multi-channel communication system of FIG. 1 in a tuner 53 and a control unit 52.

  When the digital television broadcast signal includes a flag (command) for instructing an emergency notification, the tuner 53 sends an emergency instruction to the control unit 52 and replaces the signal of the selected channel with an emergency signal. Outputs a signal related to the notification.

  Upon receiving an emergency instruction, the control unit 52 controls the video composition unit 22 to output a signal related to the emergency notification output from the tuner 53 to the monitor 42.

  FIG. 16A is a diagram illustrating an example of a screen displayed before receiving an emergency notification. FIG. 16B is a diagram illustrating an example of a screen displayed after receiving an emergency notification.

  As shown in FIGS. 16A and 16B, the signage image # 6 screen was displayed before the emergency notification was received, but the emergency output from the tuner 53 upon receiving the emergency notification. Display the emergency broadcast screen related to the display.

  As described above, according to the third embodiment, when the emergency notification command is included in the digital TV broadcast, the emergency that is forcibly output from the tuner even when the signage image is displayed. The broadcast screen can be output to the monitor.

(Further modifications)
The present invention is not limited to the above-described embodiment and its modifications, and further includes the following modifications.

(1) Content In the embodiment of the present invention, a signage image is transmitted as content, but it is not displayed on this. For example, disaster prevention information on disasters such as fires and earthquakes may be transmitted as content. Further, not only image data but also audio data accompanying the image data may be transmitted as content.

(2) Bidirectional In the embodiment of the present invention, the communication is a single direction, but may be bidirectional. In this case, the multi-channel transmitter 34 includes a new receiver, and the multi-channel receiver 37 includes a new transmitter.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Content server 2 Internet 5 Signage server 7 Signage image creation storage part 8 Transmission control part 9 Control information creation storage part 10 Ethernet (trademark) frame filtering part 11 Modulator 12 Transmitter 13 Mix , 14 broadcast station, 16 demultiplexer, 17, 53 tuner, 18 control information storage unit, 19, 52 control unit, 20 demodulator, 21 image data storage unit, 22 video composition unit, 32 millimeter wave transmitter, 33 Multi-channel communication system, 34 multi-channel transmitter, 35 millimeter wave receiver, 36 transmitter, 37 multi-channel receiver, 40 coaxial cable, 42 monitor, 45 receiver, 96 Ethernet (registered trademark) cable.

Claims (7)

A multi-channel transmitter for transmitting a signal including content and control information simultaneously with a digital television broadcast signal;
A multi-channel receiver for receiving a signal output from the multi-channel transmitter;
The multi-channel receiver is
A tuner that outputs a signal of a specified channel from a digital television broadcast signal included in the received signal;
A storage unit for storing content included in the received signal;
Based on control information included in the received signal, the tuner is controlled,
A control unit that controls output of the signal output from the tuner and the content stored in the storage unit to a viewing device;
The storage unit stores a plurality of received contents,
The control information outputs a signal of a designated channel of a digital television broadcast of a plurality of channels for each time zone, or outputs a designated content among a plurality of contents stored in the storage unit, or a plurality of the control information Including a time table that determines to simultaneously output a signal of a designated channel of digital television broadcasting of a channel and a designated content of the plurality of contents,
The control unit causes the tuner to output the signal of the designated channel based on the time table, and outputs the output signal to the viewing device, or a plurality of signals stored in the storage unit Content selected from content and read out and output to the viewing device, or the tuner outputs a signal of the specified channel, and content specified from a plurality of content stored in the storage unit A multi-channel broadcasting system that selects and reads out and outputs a signal output from the tuner and the read content to the viewing device at the same time. A multi-channel transmitter for transmitting a signal including content and control information simultaneously with a digital television broadcast signal;
A multi-channel receiver for receiving a signal output from the multi-channel transmitter;
The multi-channel receiver is
A tuner that outputs a signal of a specified channel from a digital television broadcast signal included in the received signal;
A storage unit for storing content included in the received signal;
A control unit that controls the tuner based on control information included in the received signal, and that controls output of the signal output from the tuner and the content stored in the storage unit to a viewing device. ,
The multi-channel broadcasting system includes:
A plurality of multi-channel receivers;
The control information and the content are transmitted with an address specifying a destination multi-channel receiver among the plurality of multi-channel receivers,
The control unit stores the received content in the storage unit when the address attached to the received content is an address of a multi-channel receiver including the control unit,
The control unit executes a command included in the control information when an address added to the received control information is an address of a multi-channel receiver including the control unit. The multi-channel broadcasting system according to claim 2 , wherein the content of the control information is different for each multi-channel receiver. Wherein, if it contains a command instructing an emergency notification to signal the digital television broadcast, and outputs a signal related to emergency notification output from the tuner to the viewing device, according to claim 1 Or the multichannel broadcasting system of 2. The multi-channel broadcasting system according to claim 1 or 2 , wherein the content is an electronic advertisement. The multi-channel transmitter is
A millimeter wave transmitter that converts the digital television broadcast signal and a signal including the content and the control information into a millimeter wave band signal and transmits the signal;
The multi-channel receiver is
Wherein receiving the signal at the output millimeter-wave band from the multi-channel transmitter, including a millimeter-wave receiver for converting a signal frequency before conversion to the millimeter-wave band, multi-channel according to claim 1 or 2 Broadcast system. The multi-channel transmitter outputs a signal including the digital television broadcast signal and the content and the control information to a coaxial cable, and the coaxial cable transmits the output signal.
The multi-channel broadcasting system according to claim 1, wherein the multi-channel receiver receives a signal including the content and the control information transmitted through the coaxial cable.

Images