JP2010130074A - Broadcasting signal transmission equipment, broadcasting signal transmission method, program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide broadcasting signal transmission equipment making data other than television broadcasting data, receivably data with a television receiver for receiving general digital broadcasting. <P>SOLUTION: The broadcasting signal transmission equipment acquires data from a network or a recording medium, while it receives a digital broadcasting signal. The equipment is equipped with: a conversion means; a detection means; a modulation means; a mixing means; and a transmission means. The conversion means converts the acquired data into a transport stream signal. The detection means detects a broadcasting band other than broadcasting bands where broadcasting is performed in the digital broadcasting signal. The modulation means modulates the transport stream signal into the detected band to generate a modulated signal, based on a modulation scheme of the digital broadcast signal. The mixing means mixes the digital broadcast signal with the modulated signal to generate a mixed signal. The transmission means transmits the mixed signal to the outside. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a broadcast signal transmission apparatus, a broadcast signal transmission method, a program, and a recording medium that modulate and transmit a digital television broadcast signal.

  In the age of televisions that support analog broadcasting, as a method of outputting predetermined video information to the television, a channel that is not broadcast in that area is selected, and a radio frequency signal (hereinafter referred to as an RF signal) of that frequency is selected. ) Is generally used.

  This method is often used when a video input terminal is not attached to a television when outputting an image of a VTR or a video game to the television.

  Televisions that support terrestrial digital broadcasting can usually only image digital signals of an encoding method that can be decoded by the television. For example, a television equipped with a tuner for ordinary terrestrial digital broadcasting is provided with an MPEG-2 (Moving Picture Experts Group phase 2) decoder employed in terrestrial digital broadcasting. However, for example, in order to obtain HDTV (High Definition TeleVision) image quality when visualizing redistributed data of terrestrial digital broadcasting by IP, H.264 is required. H.264 decoder is required. For this reason, H.264 is used for each MPEG-2 television. An STB (Set Top Box) equipped with an H.264 decoder had to be provided for each television.

  Therefore, conventionally, there has been proposed a technology such as an information relay device that enables a video indicated by a digital signal to be viewed on a television without providing a decoder as described above for each television. Such a technique is disclosed in Patent Document 1, for example.

Specifically, in the technique of Patent Document 1, first, H.264 received via the Internet. The TS (Transport Stream) signal encoded by the H.264 system is converted to H.264. An H.264 / MPEG-2 transcoder converts the signal into an MPEG-2 TS signal that can be decoded by a television. Then, the TS signal is broadcast to a channel on which the broadcast of the TS signal is broadcast or an empty channel and is transmitted to a television.
JP2007-259087 (released on October 4, 2007)

  However, with the technique of Patent Document 1, data other than television broadcast cannot be converted into a broadcast signal, modulated into a broadcast-capable band, and transmitted. For this reason, the video image projected on the television is always only the content for television broadcasting. That is, there is a problem that the expandability of the content displayed on the television is lacking.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a broadcast signal transmission apparatus and a broadcast signal transmission method for converting data other than television broadcast data into broadcast data that can be reliably received by the television. It is to provide a program and a recording medium.

(Broadcast signal transmitter)
In order to solve the above problems, the broadcast signal transmission device according to the present invention provides:
A broadcast signal transmission device that receives a digital broadcast signal and acquires data from a network or a recording medium,
Conversion means for converting the acquired data into a transport stream signal;
Detecting means for detecting a band other than a broadcast band in which broadcasting is performed in the digital broadcast signal;
Modulation means for modulating the transport stream signal into the detected band based on a modulation method of the digital broadcast signal, and generating a modulated signal;
Mixing means for mixing the modulated signal with the digital broadcast signal to generate a mixed signal;
And sending means for sending the mixed signal to the outside.

  According to said structure, this broadcast signal transmission apparatus receives data from a network or a recording medium while receiving a digital broadcast signal. The digital broadcast signal here is, for example, a terrestrial digital broadcast signal. On the other hand, data acquired from a network or a recording medium is arbitrary data that a television viewer receiving the signal wants to display on the television, and is different from a general digital broadcast signal. That is, it is data in a format that cannot be received and converted into an image on a normal television. For example, streaming content distributed from a server on the network, music data that can be played back by various players that can be executed on a PC, and the like.

  In addition, the broadcast signal transmission device includes conversion means for converting the acquired data into a transport stream signal. Thereby, it is possible to convert data in a format different from that of general broadcasting into a transport stream signal.

  The broadcast signal transmitting apparatus further includes detection means for detecting a band other than a broadcast band in which the broadcast is performed in the digital broadcast signal (hereinafter referred to as an empty band), and the transport stream signal as the digital broadcast. Modulation means for modulating the detected band based on a signal modulation method to generate a modulated signal. Accordingly, it is possible to generate a modulated signal by modulating the transport stream signal into an empty band based on the modulation system of the digital broadcast signal.

  The broadcast signal transmission device further includes mixing means for mixing the digital broadcast signal with the modulation signal to generate a mixed signal, and transmission means for transmitting the mixed signal to the outside.

  As described above, the broadcast signal transmission apparatus detects an empty band, converts data other than the general broadcast signal into a format that can be modulated based on the modulation method of the general broadcast signal, that is, converts the data into a transport stream signal, and performs the modulation. Modulate based on the method. Subsequently, the modulated signal is mixed with a general broadcast signal and transmitted. As a result, the television receiving the general broadcast can receive data different from the general broadcast arbitrarily acquired by the viewer without distinction from the general broadcast. Therefore, there is an effect that any content other than the television broadcast can be viewed on the television.

(Detection means)
In the broadcast signal transmission device,
The detecting means is
It is preferable to detect a band other than the broadcast band in which the broadcast is performed in the digital broadcast signal existing in the residential area of the viewer of the television receiving the mixed signal.

  According to said structure, this broadcast signal transmission apparatus detects bands other than the broadcast band currently broadcasted in the said digital broadcast signal which exists in the residence area of the viewer of the television who receives the said mixed signal. As a result, it is possible to obtain an empty band existing in the viewer's residence area and to modulate the transport stream signal into the empty band. Therefore, it is possible to effectively use different air bands depending on the viewer's residence area.

(Support for special TV)
In the broadcast signal transmission device,
The sending means is
Sending the mixed signal to a television that can also receive a signal modulated in a band other than the band used by the digital broadcast signal,
The detecting means is
It is preferable to detect a band other than the band used by the digital broadcast signal as a band other than the broadcast band in which the digital broadcast signal is broadcast.

  According to the above configuration, the broadcast signal transmission device transmits the mixed signal to a television capable of receiving a signal modulated in a band other than the band used by the digital broadcast signal. As a result, the mixed signal can be visualized even in a television that can receive a signal modulated in a band other than the band used by a general digital broadcast signal.

  Furthermore, the present broadcast signal transmission device detects a band other than the band used by the digital broadcast signal as a band other than the broadcast band in which the broadcast is performed in the digital broadcast signal. Thereby, it is possible to detect a band other than the band used by a general digital broadcast signal as an empty band.

(Broadcast data creation means)
In the broadcast signal transmission device,
Broadcast data creating means for creating broadcast data for the television receiving the mixed signal to recognize the mixed signal as broadcastable data;
It is preferable to further comprise multiplexing means for multiplexing the transport stream signal together with the broadcast data and outputting the multiplexed data to the modulating means.

  According to the above configuration, the broadcast signal transmitting apparatus includes: broadcast data creating means for creating broadcast data for the television receiving the mixed signal to recognize the mixed signal as broadcastable data; and the transport Multiplexing means for multiplexing the stream signal together with the broadcast data and outputting the multiplexed signal to the modulation means. Thereby, it is possible to cause the television to recognize that the mixed signal can be broadcast and visualize it.

(Multiplexing means)
In the broadcast signal transmission device,
Preferably, the multiplexing means converts data other than the transport stream signal and the broadcast data into a transport stream signal, and multiplexes the data together with the transport stream signal and the broadcast data.

  According to the above configuration, the broadcast signal transmitting apparatus converts data other than the transport stream signal and the broadcast data into a transport stream signal, and multiplexes the data together with the transport stream signal and the broadcast data. Thereby, data other than broadcast data can be included in the mixed signal and transmitted.

(Multiplication of each means)
In the broadcast signal transmission device,
Each of the broadcast data creation means, the multiplexing means, and the modulation means is preferably multiplexed.

  According to the above configuration, in the broadcast signal transmitting apparatus, each of the broadcast data creation unit, the multiplexing unit, and the modulation unit is multiplexed. As a result, even when there are a plurality of data to be modulated other than general digital broadcasting, it is possible to modulate them into a plurality of bands and transmit them at a time.

(Radio wave attenuation means)
In addition, the broadcast signal transmission device further includes:
Radio wave attenuating means is further provided for attenuating the radio wave of the broadcast signal in the newly broadcast band when a band in which the new broadcast is performed in the digital broadcast signal overlaps with the detected broadcast band. Is preferred.

  According to the above configuration, the broadcast signal transmission device can transmit a broadcast signal in the band in which the new broadcast is performed when a band in which the new broadcast is performed overlaps with the detected broadcast band. And a radio wave attenuating means for attenuating the radio wave. Thereby, when the broadcast band of the mixed signal and the broadcast band in which a new broadcast is performed in a general digital broadcast signal overlap, it is possible to attenuate the signal wave of the new broadcast. Therefore, it is possible to avoid interference between the mixed signal and a new broadcast signal.

(Internal clock)
In addition, the broadcast signal transmission device further includes:
An internal clock,
The multiplexing means is
It is preferable to multiplex the section information created based on the time represented by the internal clock and the transport stream signal.

  According to said structure, this broadcast signal transmission apparatus is further provided with the internal clock. Thereby, various managements can be performed using the time information indicated by the internal clock.

  The broadcast signal transmitting apparatus multiplexes the section information created based on the time represented by the internal clock and the transport stream signal. Thus, time information is also included in the mixed signal. Therefore, this broadcast signal transmission device can notify the time to the television receiving the mixed signal.

(Time information included in section information)
In addition, this broadcast signal sending device
Extracting means for extracting section information from the digital broadcast signal;
It is preferable to further include setting means for setting the time information included in the extracted section information in the internal clock.

  According to the above configuration, the broadcast signal transmitting apparatus includes: an extracting unit that extracts section information from the digital broadcast signal; and a setting unit that sets time information included in the extracted section information in the internal clock. It has more. As a result, the broadcast signal transmission apparatus can set the time included in the section information of the general digital broadcast signal in the internal clock.

(Time information specified by the viewer)
In addition, this broadcast signal sending device
Time input means for receiving input of time information;
It is preferable to further include setting means for setting the input time information in the internal clock.

  According to the above configuration, the broadcast signal transmission device further includes time input means for receiving input of time information designated by the viewer, and setting means for setting the input time information in the internal clock. ing. Thereby, this broadcast signal transmission device can set an arbitrary time designated by the viewer in the internal clock.

(Time information acquired from the network)
In addition, this broadcast signal sending device
It is preferable to further include setting means for setting time information acquired from data received via the network to the internal clock.

  According to said structure, this broadcast signal transmission apparatus is further provided with the setting means which sets the time information acquired from the data received via the said network to the said internal clock. As a result, the broadcast signal transmission apparatus can set the time indicated by the network protocol or the like in the internal clock.

(Broadcast schedule)
In addition, this broadcast signal sending device
Schedule input means for receiving an input of a broadcast schedule for data received via the network;
A program guide creation means for creating an electronic program guide based on the input broadcast schedule;
It is preferable to further comprise packet creation means for creating an EIT packet based on the created electronic program guide and outputting it to the multiplexing means.

  According to said structure, this broadcast signal transmission apparatus is provided with the schedule input means which receives the input of the broadcast schedule which the said viewer designates with respect to the data received via the said network. Thereby, it is possible to receive an arbitrary broadcast schedule of the viewer.

  In addition, the broadcast signal transmitting apparatus includes a program guide creation means for creating an electronic program guide based on the input broadcast schedule. Thereby, it is possible to create a program creation table based on an arbitrary broadcast schedule designated by the viewer.

  The broadcast signal transmitting apparatus further includes a packet creating unit that creates an EIT packet based on the created electronic program guide and outputs the packet to the multiplexing unit. Thereby, the information of the electronic program guide can be included in the mixed signal. Accordingly, broadcasting based on the electronic program guide can be performed on a television that receives the mixed signal.

(Electronic program guide acquired from the network)
In addition, this broadcast signal sending device
Program guide acquisition means for acquiring an electronic program guide via the network;
It is preferable to further comprise EIT creation means for creating an EIT packet based on the acquired electronic program guide and outputting the packet to the multiplexing means.

  According to the above configuration, the broadcast signal transmitting apparatus generates a program guide acquisition unit that acquires an electronic program guide via the network, and creates an EIT packet based on the acquired electronic program guide and outputs the EIT packet to the multiplexing unit. And an EIT creating means. Thereby, the information of the electronic program guide acquired from the network can be included in the mixed signal. Accordingly, broadcasting based on the electronic program guide can be performed on a television that receives the mixed signal.

(Logo data)
In addition, this broadcast signal sending device
Logo data acquisition means for acquiring logo data via the network,
It is preferable to further comprise CDT creation means for creating a CDT packet based on the acquired logo data and outputting it to the multiplexing means.

  According to the above configuration, the broadcast signal transmission apparatus includes a logo data acquisition unit that acquires logo data via the network, and a CDT that generates a CDT packet based on the acquired logo data and outputs the CDT packet to the multiplexing unit. Creating means. Thereby, it is possible to include logo data acquired from the network in the mixed signal. Therefore, logo data can be displayed on a television that receives the mixed signal.

(Channel allocation method)
In addition, this broadcast signal sending device
It is preferable to further include an assigning unit that assigns a free channel number for broadcasting the mixed signal to the mixed signal.

  According to said structure, this broadcast signal transmission apparatus is further provided with the allocation means to allocate the empty channel number for broadcasting this mixed signal to the said mixed signal. Accordingly, it is possible to notify the television that receives the mixed signal of the channel on which the mixed signal is broadcast.

(Electronic program guide acquired from recording media)
In addition, this broadcast signal sending device
Program guide creation means for creating an electronic program guide based on the data read from the recording medium;
It is preferable to further comprise packet creation means for creating an EIT packet based on the created electronic program guide and outputting it to the multiplexing means. Thereby, the information of the electronic program guide acquired from the recording medium can be included in the mixed signal. Accordingly, broadcasting based on the electronic program guide can be performed on a television that receives the mixed signal.

(BML conversion means)
In addition, this broadcast signal sending device
A program guide creating means for creating an electronic program guide based on data received via the network;
BML conversion means for converting data received via the network into BML and outputting the data to the conversion means;
It is preferable to further comprise packet creation means for creating an EIT packet based on the created electronic program guide and outputting it to the multiplexing means.

  According to said structure, this broadcast signal transmission apparatus is provided with the program schedule preparation means which produces an electronic program schedule based on the data received via the said network. Thereby, for example, it is possible to create a program guide based on information such as the broadcast time of received data.

  In addition, the broadcast signal transmission apparatus includes BML conversion means for converting data received via the network into BML and outputting the data to the conversion means. Thereby, for example, the content on the WEB can be converted into a format that can be displayed by the BML browser.

  The broadcast signal transmitting apparatus further includes a packet creating unit that creates an EIT packet based on the created electronic program guide and outputs the packet to the multiplexing unit. As a result, the BML-converted content data can be included in the mixed signal. Therefore, on a television that receives the mixed signal, it is possible to display the content on the WEB on the BML browser.

(Home appliance setting)
In addition, this broadcast signal sending device
A collecting means for collecting home appliance sensor data received via the network;
Based on the collected home appliance sensor data, changing means for changing the home appliance settings;
BML conversion means for converting the setting information into BML and outputting it to the conversion means;
Program guide acquisition means for acquiring an electronic program guide via the network;
It is preferable to further include packet creation means for creating an EIT packet based on the acquired electronic program guide and outputting it to the multiplexing means.

  According to said structure, this broadcast signal transmission apparatus is provided with the collection means which collects household appliance sensor data received via the said network. Thereby, for example, data of each home appliance sensor connected to the home LAN can be collected. Moreover, the change means which changes the setting of a household appliance based on the collected household appliance sensor data is provided. Thereby, management of each household appliance based on the collected data is possible. Further, BML conversion means for converting the setting information into BML and outputting the information to the conversion means is provided. Thereby, various setting information can be displayed on the BML browser of the television which receives the said mixed signal.

  The broadcast signal transmitting apparatus further includes a program guide acquisition unit that acquires an electronic program guide via the network, and a packet generator that generates an EIT packet based on the acquired electronic program guide and outputs the EIT packet to the multiplexing unit. Means. Thus, it is possible to acquire an existing electronic program guide from the network and create an EIT packet based on the acquired electronic program guide. Therefore, the home appliance information can be displayed on the existing electronic program guide, or the change information can be displayed.

(Viewer instructions)
In addition, the broadcast signal transmission device further includes:
It is preferable that the instruction of the viewer detected by the BML browser displaying the BML is received via the network, and the process indicated by the instruction is executed.

  According to said structure, this broadcast signal transmission apparatus receives the instruction | indication of the viewer detected by the BML browser which displayed said BML via the said network, and performs the process which the said instruction | indication shows. Thereby, for example, it is possible to change the set values of the various home appliances described above to arbitrary values designated by the viewer.

(Decoding and encoding of video / audio data)
In addition, this broadcast signal sending device
Decoding means for decoding video and audio data received via the network based on a method in which the video and audio data is encoded;
Encoding means for encoding the decoded video / audio data into stream data in a format that can be decoded by a television receiving the mixed signal;
It is preferable that the converting means converts the encoded stream data into a transport stream signal.

  According to the above configuration, the broadcast signal transmitting apparatus includes a decoding unit that decodes video / audio data received via the network based on a system in which the video / audio data is encoded. Accordingly, for example, video data encoded in a format that cannot be decoded by a normal television can be decoded in advance before being included in the mixed signal and transmitted.

  The broadcast signal transmission apparatus further includes an encoding unit that encodes the decoded video / audio data into stream data in a format that can be decoded by a television that receives the mixed signal. Then, the conversion means converts the encoded stream data into a transport stream signal. Thus, the video / audio data included in the mixed signal can be decoded by a normal television. Therefore, the broadcast signal transmitting apparatus can encode and transmit video / audio data that cannot be decoded by a normal television in a format that can be decoded.

(Authentication by key)
In addition, this broadcast signal sending device
A key data input means for receiving the unique key data of the television connected to the network and receiving the mixed signal via the network, and inputting the key data to the multiplexing means;
It is preferable to further comprise an encryption unit that encrypts the transport stream signal multiplexed by the multiplexing unit based on the key data.

  According to the above configuration, the broadcast signal transmitting apparatus receives key data unique to a television connected to the network and receiving the mixed signal via the network, and inputs the key data to the multiplexing means. Input means are provided. Thereby, the key data can be included in the mixed signal.

  The broadcast signal transmission apparatus further includes encryption means for encrypting the transport stream signal multiplexed by the multiplexing means based on the key data. Thereby, only the television holding the key data can decrypt the transport stream signal, that is, authenticate. Therefore, it is possible to limit the televisions that can view the content of the transport stream signal.

(Authentication using BCAS card)
In addition, this broadcast signal sending device
Registration means for registering a BCAS card number to be inserted into a television connected to the network and receiving the mixed signal;
It is preferable that the apparatus further comprises encryption means for encrypting the transport stream signal multiplexed by the multiplexing means based on the registered number.

  According to the above configuration, the broadcast signal transmitting apparatus includes a registration unit that registers the number of the BCAS card to be inserted into the television that is connected to the network and receives the mixed signal, and the transformer multiplexed by the multiplexing unit. And an encryption means for encrypting the port stream signal based on the registered number. This makes it possible to encrypt the transport stream signal using the number of the BCAS card of the television that receives the mixed signal. That is, the transport stream signal can be authenticated only by the television in which the BCAS card with the number is inserted. Therefore, it is possible to limit the televisions that can view the content of the transport stream signal.

(Conversion of contents on home LAN and Internet)
In order to solve the above problems, the broadcast signal transmission device according to the present invention provides:
A broadcast signal transmission device that receives a digital broadcast signal and receives data via a network,
The received data is a transport stream signal received via a home LAN of a television viewer who receives the digital broadcast signal, or distributed from a server on the network,
Detecting means for detecting a band other than a broadcast band in which broadcasting is performed in the digital broadcast signal;
Modulation means for modulating the transport stream signal into the detected band based on a modulation method of the digital broadcast signal, and generating a modulated signal;
Mixing means for mixing the modulated signal with the digital broadcast signal to generate a mixed signal;
And sending means for sending the mixed signal to the outside.

  According to said structure, this broadcast signal transmission apparatus receives data via a network while receiving a digital broadcast signal. The received data is a transport stream signal that is received via a home LAN of a television viewer who receives the digital broadcast signal or distributed from a server on the network. The digital broadcast signal here is as described above.

  According to the above configuration, the present broadcast signal transmission apparatus is the same as the broadcast signal transmission apparatus described above, except that the acquired data is already a transport stream signal and does not need to be converted into a transport stream. There are effects and effects.

(Broadcast signal transmission method)
Moreover, in order to solve the above-mentioned problem, the broadcast signal transmission method according to the present invention includes:
A broadcast signal transmission method executed by a broadcast signal transmission apparatus that receives a digital broadcast signal and acquires data from a network or a recording medium,
A conversion step of converting the acquired data into a transport stream signal;
A detection step of detecting a band other than the broadcast band in which broadcasting is performed in the digital broadcast signal;
A modulation step of modulating the transport stream signal into the detected band based on a modulation scheme of the digital broadcast signal to generate a modulated signal;
Mixing step of mixing the modulation signal with the digital broadcast signal to generate a mixed signal;
A sending step for sending the mixed signal to the outside.

  According to said structure, there exists an effect | action and effect similar to the broadcast signal transmission apparatus mentioned above.

(Program and recording medium)
The broadcast signal transmission device according to the present invention may be realized by a computer. In this case, a program for realizing the broadcast signal transmission apparatus in the computer by operating the computer as each of the above means and a computer-readable recording medium recording the program also fall within the scope of the present invention.

  As described above, the broadcast signal transmission apparatus detects an empty band, converts data other than the general broadcast signal into a format that can be modulated based on the modulation method of the general broadcast signal, that is, a transport stream signal, and performs the modulation. Modulate based on the method. The modulated signal is mixed with the general broadcast signal and transmitted. Therefore, a television receiving a general broadcast can receive data different from the general broadcast arbitrarily acquired by the viewer without distinction from the general broadcast. Therefore, there is an effect that any content other than the television broadcast can be viewed on the television.

[Embodiment 1]
A first embodiment of a broadcast signal transmission apparatus according to the present invention will be described below with reference to FIG. FIG. 1 is a block diagram illustrating a configuration of a broadcast signal transmission apparatus 101 according to the present embodiment.

(Configuration of Broadcast Signal Sending Device 101)
The configuration of the broadcast signal transmission apparatus 101 will be described. As shown in FIG. 1, a broadcast signal transmitting apparatus 101 according to the present invention includes a reception antenna 1, a digital broadcast tuner 2, a packet Demuxer 3, a section information extraction unit 4, a reception status table 5, an empty band detection unit 6, and a detection band setting. Section 7, communication section 8, content TS creation section 9, broadcast data creation section 10, MPEG2TS multiplexing section 11, TS modulation section 12, and RF signal mixing section 13. RF is an abbreviation for Radio Frequency. Detailed processing of each part will be described later.

(Digital broadcasting standards in each country)
The application of the embodiment according to the present invention to be described later is not limited to ISDB-T, which is a standard for digital terrestrial broadcasting in Japan. Digital broadcasting standards vary from country to country. The embodiment according to the present invention is also applicable to a case where a standard such as DVB-T or ATSC is used.

(Modulation method)
The modulation system used in the modulation unit 12 is OFDM (Orthogonal Frequency Division Multiplexing). However, the modulation method is not limited to this. Various modulation schemes can be used based on the broadcasting scheme.

(General data format for digital broadcasting)
Here, it supplements about the general various data format used in digital broadcasting.

  In many digital broadcasts, ISO / IEC 13818-1 and ITU-T Recommendation H.264 are used. MPEG-2 TS is adopted as a multiplexed transmission system of MPEG-2 standardized in 222.0. In TS transmission, various types of data are transmitted using a 188-byte fixed-length packet called a transport packet (Transport Packet or TS Packet). As information indicating what data each transport packet is transmitting, each TS packet includes 13-bit information called a packet identifier (PID).

  A TS can handle a plurality of programs (programs). Information describing what programs exist in the TS, and which ES (Elementary Stream) (video / audio / data) included in the TS belongs to is called PSI (Program Specific Information). The TS packet having a PID different from the voice is inserted into the TS. Hereinafter, an example of PSI will be described.

PAT (Program Association Table)
A program list included in a certain TS is table format data including a PID list of PMT (see below).

PMT (Program Map Table)
Table format data including PIDs such as images and sounds included in a program. If PIDs such as images and sounds can be obtained from the PMT, the program can be reproduced by extracting TS packets with those PIDs.

CAT (Conditional Access Table)
It is table format data including information that supports limited reception. In the MPEG-2 System standard, only PSI is described, but in many digital broadcasting standards adopting MPEG-2 TS, SI (Service Information) including program information and the like is defined by extending PSI. . In many cases, SI is regarded as a part of PSI and is collectively treated as PSI / SI information. Hereinafter, an example of SI defined by ARIB (Association of Radio Industries and Businesses) will be described.

NIT (Network Information Table)
This is table format data that stores information about the network to be transmitted, such as channel number, modulation method, guard interval, and the like.

BIT (Broadcaster Information Table)
This is table format data including broadcasting station SI transmission information such as broadcasting station identification information (BSD), series information (terrestrial D), retransmission period of each SI table, posting period of SI, and logo information transmission method.

SDT (Service Description Table)
This is table format data including the name of the channel. In addition, the type of EIT (Event Information Table) transmitted in each channel (service) and digital copy control information are also included.

Other PSI / SI
As PSI / SI, there are EIT (Event Information Table), TOT (Time Offset Table) and the like.

(Processing of broadcast signal transmitting apparatus 101)
The processing of the broadcast signal transmission apparatus 101 will be described with reference to FIG.

  First, when a channel is selected by the digital broadcast tuner 2, the digital broadcast tuner 2 receives a digital broadcast data signal via the reception antenna 1.

  The digital broadcast tuner 2 converts the received digital broadcast data into a TS signal (transport stream, hereinafter referred to as TS), and outputs the TS signal to the packet Demuxer 3.

  The packet Demuxer 3 separates various multiplexed packet information included in the input TS and outputs it to the section information extraction unit 4.

  The section information extraction unit 4 first extracts section information from the separated TS packet information and confirms the broadcast reception state. The section information here is PSI / SI. Subsequently, the reception status is stored in the reception status table 5.

  Here, an overview of the reception status table 5 will be described with reference to FIG. FIG. 2 is a diagram illustrating an example of the reception status table 5. As shown in FIG. 2, from the left end, as shown on the horizontal axis 50 of the reception status table 5 that stores the reception status, the channel, reception level, broadcast station name, frequency (MHz), network_id, original_network_id, service_id, remote_control_id, Each data is stored in the order of (omitted below). The outline of each data will be described below.

  The reception level indicates the status of radio waves received by the digital broadcast tuner 2.

The broadcast station name is a network name descriptor to be inserted into the first loop of the NIT.
(Refer to ARIB TR-B14 Volume 2 Volume 4 Chapter 30.4.2.1)
The frequency is a terrestrial distribution system descriptor that is a descriptor to be inserted into the second loop of the NIT.
(Refer to ARIB TR-B14 Volume 2 Volume 4 Chapter 30.4.3.2)
network_id is described in the NIT.
(Refer to “Structure” in ARIB TR-B14 Volume 2 Volume 4 Chapter 30.4.1)
The original_network_id is described in the NIT.
(Refer to “Structure” in ARIB TR-B14 Volume 2 Volume 4 Chapter 30.4.1)
The transport_stream_id is described in the NIT.
(Refer to “Structure” in ARIB TR-B14 Volume 2 Volume 4 Chapter 30.4.1)
service_id is a service list descriptor of a descriptor to be inserted into the second loop of the NIT.
(Refer to ARIB TR-B14 Volume 2 Volume 4 Chapter 30.4.3.1)
remote_control_id is a TS information descriptor to be inserted into the second loop of the NIT.
(Refer to ARIB TR-B14 Volume 2 Volume 4 Chapter 30.4.3.4)
(Broadcast band determination)
The empty band detection unit 6 refers to the reception status table 5 to detect a band in which broadcasting is not performed, that is, an empty band.

  When only one empty band is detected, the empty band is determined as a broadcast band of an RF signal (hereinafter referred to as a home broadcast signal) output from the broadcast signal transmitting apparatus 101.

  If no empty band can be detected, the empty band detection unit 6 determines the broadcast band by one of the following methods.

  The first method is a method in which the viewer can present and select five usable bands in ascending order of signal strength. For example, at this time, the number of bands to be presented may be determined in advance by the viewer.

  In the second method, the empty band detection unit 6 automatically determines a band having the smallest signal strength among usable bands as a broadcast band.

  On the other hand, when a plurality of empty bands are detected, the empty band detection unit 6 determines the broadcast band by one of the following methods.

  In the first method, as in the first method in the case where an empty band cannot be detected, the viewer selects from available bands.

  In the second method, as in the second method in the case where the empty band cannot be detected, the empty band detecting unit 6 automatically determines the band having the smallest signal intensity as the broadcast band. In order to avoid mixing of signals, if there is a band where there is no broadcast in the adjacent band, that band is preferentially determined as the broadcast band.

  In addition, a broadcast band for broadcasting a home broadcast is determined by newly providing an empty band input unit (not shown) that allows the viewer to input an empty band without being detected by the empty band detection unit 6. May be. There is no limitation here.

  As another method for detecting an empty band without using the empty band detector 6, the broadcast signal transmitting apparatus 101 may be configured as follows.

  An area information input unit (not shown) for inputting area information manually by a viewer, or an area information input unit (not shown) for inputting area information by a server that automatically detects area information, a data table indicating correspondence between area information and free bandwidth, and Then, an empty band acquisition unit (not shown) that obtains an empty channel in the area from the area information by using the data table is newly provided. Thus, an empty band existing in the viewer's residence area is obtained, and the empty band is determined as a broadcast band for home broadcasting.

  The detection band setting unit 7 sets the empty band detected by the empty band detection unit 6 in the TS modulation unit 12 as a broadcast band of home broadcast, that is, a modulation destination band of home broadcast.

  The communication unit 8 communicates with a server (not shown here) on an external network (for example, the Internet) and receives various data. Then, the received information is output to the content TS creation unit 9.

  The content TS creation unit 9 creates content TS in a format that can be released to home broadcasts based on the received reception information. Specifically, according to the guidelines for the allocation method of network identification, TS identification, and service identification described in chapter 9.1 of “ARIB TR-B14 Volume 3 Volume 7” of ARIB TR-B14 Create a TS. Details of each of the above identifications in the SDTT (Software Download Trigger Table) are disclosed in Section 9.2.7. The identifications already assigned in the digital broadcasting area are listed in Table 9-1 of the document. The content TS creation unit 9 can determine a free identification number by referring to the table data. The content TS creation unit 9 outputs the TS created as described above to the MPEG2TS multiplexing unit 11.

  On the other hand, the broadcast data creation unit 10 creates broadcast data that allows a home broadcast TS to be recognized as broadcast data by a television receiving the TS, and outputs the broadcast data to the MPEG2TS multiplexing unit 11 as PSI / SI.

  The MPEG2TS multiplexing unit 11 converts the input broadcast data into a TS format and multiplexes it with the content TS input from the content TS creation unit 9. The multiplexed TS is output to the TS modulator 12.

  The modulation unit 12 modulates the input TS based on the broadcast band set by the detection band setting unit 7. Then, the modulated TS is output to the RF signal mixing unit 13 as an RF signal (home broadcast).

(Mixing of RF signals)
The RF signal mixing unit 13 mixes the input RF signal with a broadcast RF signal in a general broadcast band other than the broadcast band, and transmits the mixed signal to the outside of the broadcast signal transmission apparatus 101. Thus, since the broadcast signal transmission device 101 mixes a general broadcast radio wave and a broadcast radio wave transmitted from the device, even with a conventional terrestrial digital TV antenna with one input of the receiving antenna, It can be received without distinction from general broadcasting.

  As described above, the broadcast signal transmitting apparatus 101 detects a broadcast band that can be broadcast even when an empty band cannot be detected, and data other than television broadcast data received via an external network is matched to the broadcast band. Then, it is converted into broadcast data that can be received by the TV and modulated. Therefore, data that is different from general broadcast data in the empty band (band that was not used for broadcasting because the radio wave intensity was weak) or a band that was arbitrarily specified without colliding with the band already being broadcast, On the TV side, it can be received and displayed without distinction from general broadcast data.

  In the present embodiment, an RF signal is received and transmitted as an RF signal for home broadcast, but the present invention is not limited to this. Instead of receiving a broadcast signal via radio, the broadcast signal may be received via a wire and transmitted via the wire.

[Embodiment 2]
A second embodiment of the broadcast signal transmitting apparatus according to the present invention will be described below with reference to FIG. FIG. 3 is a block diagram showing a configuration of the broadcast signal transmission apparatus 102 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 3, the broadcast signal transmitting apparatus 102 is further provided with a radio wave attenuation filter 14 between the receiving antenna 1 and the RF signal mixing unit 13.

  In addition, an empty band monitoring unit (not shown) for determining whether the frequencies of the general broadcast signal and the home broadcast signal do not overlap is provided in the empty band detection unit 6. Furthermore, a data multiplexing unit (not shown) capable of multiplexing data other than broadcast data is provided inside the MPEG2TS multiplexing unit 11.

  The radio wave attenuation filter 14 functions in the following situation.

  In the first embodiment, when a broadcast of a general broadcast starts newly in a broadcast band used for a home broadcast, there is a risk that the frequency will collide and the home broadcast signal and the general broadcast signal will interfere with each other. is there. In such a case, the radio wave attenuation filter 14 attenuates the radio wave of the new general broadcast signal.

  Then, the RF signal mixing unit 13 mixes the attenuated general broadcast signal and the home broadcast signal, and outputs the mixed signal to the outside of the broadcast signal transmitting apparatus 102. Thus, even if a general broadcast signal is generated in the home broadcast band, it is possible to prevent the general broadcast signal and the home broadcast signal from interfering with each other.

  At this time, when a new broadcast starts in the general broadcast and the airband monitoring unit detects that the frequency of the general broadcast and the home broadcast has collided, it can also notify the viewer that the frequency has collided It is. Specifically, the broadcast data creation unit 10 generates a screen to notify the viewer and outputs it to the MPEG2TS multiplexing unit 11. The MPEG2TS multiplexing unit 11 converts the input notification data into the TS format, multiplexes the data by the data multiplexing unit described above, and makes the TS modulation unit 12.

  In addition, after notifying the viewer that the frequencies of the general broadcast and the home broadcast have collided, the home broadcast can be moved to another empty band in accordance with the viewer's instruction or automatically. At this time, the broadcast signal transmitting apparatus 102 creates a screen for prompting the viewer's instruction via the home broadcast in the broadcast data creating unit 10, and after the screen is displayed on the television, the viewer's instruction is transmitted by the remote controller. It may be accepted.

  When the broadcast signal transmission apparatus 102 receives an instruction from viewing to move the home broadcast to another empty band, it acquires a TS from the digital broadcast tuner 2 and then detects the empty band in the empty band detection unit 6. Repeat the process up to.

  Instead of asking for instructions from the viewer, the empty band detecting unit 6 may automatically detect the empty band again.

  In either case, the channel on which the home broadcast is broadcast is changed. Therefore, in the television that receives the home broadcast, it is necessary to switch the home broadcast channel to a new channel. At this time, if it is desired to automatically set a new channel for home broadcasting in the TV, the TV remote control signal for changing the channel is automatically changed by generating from the broadcast signal transmitting device 102. Also good.

[Embodiment 3]
A third embodiment of the broadcast signal transmission apparatus according to the present invention will be described below with reference to FIG. FIG. 4 is a block diagram showing the configuration of the broadcast signal transmission apparatus 103 according to this embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 4, in the broadcast signal transmission device 103, each of the broadcast data creation unit 10, the MPEG2TS multiplexing unit 11, and the TS modulation unit 12 is multiplexed.

  As a result, even when there are a plurality of home broadcast data streams to be output, a plurality of bands can be used as the home broadcast.

  In the first embodiment, only one empty band in which broadcasting is not performed is detected. However, in the present embodiment, the empty band detection unit 6 needs to detect the empty band as many as the number of home broadcast bands to be output.

  If the necessary number of vacant bands cannot be detected, as described in the first embodiment, broadcast bands for home broadcasts may be assigned sequentially in the order of the band having the smallest signal intensity.

[Embodiment 4]
A fourth embodiment of the broadcast signal transmission apparatus according to the present invention will be described below with reference to FIG. FIG. 5 is a block diagram showing a configuration of the broadcast signal transmission apparatus 104 according to the present embodiment. Members common to the members according to the third embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 5, the broadcast signal transmission device 104 is further provided with a radio wave attenuation filter 14 between the receiving antenna 1 and the RF signal mixing unit 13.

  In addition, an empty band monitoring unit (not shown) for determining whether the frequencies of the general broadcast signal and the home broadcast signal do not overlap is provided in the empty band detection unit 6. Furthermore, a data multiplexing unit (not shown) capable of multiplexing data other than broadcast data is provided inside the MPEG2TS multiplexing unit 11.

  As a result, in the third embodiment, even if a general broadcast signal is generated in the home broadcast band, the general broadcast signal and the home broadcast signal are prevented from interfering with each other. Is possible. Since the details of each of the above parts are the same as the processes described in the second embodiment, a detailed description thereof is omitted here.

[Embodiment 5]
A fifth embodiment of the broadcast signal transmitting apparatus according to the present invention will be described below with reference to FIG. FIG. 6 is a block diagram illustrating a configuration of the broadcast signal transmission apparatus 105 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 6, unlike the broadcast signal transmission apparatus 101 according to the first embodiment, the broadcast signal transmission apparatus 105 includes a digital broadcast tuner 2, a packet Demuxer 3, a section information extraction unit 4, a reception status table 5, an empty The band detection unit 6 and the detection band setting unit 7 are not provided. Instead, a frequency setting unit 15 is provided.

  The frequency setting unit 15 is provided when a special television capable of receiving radio waves outside the frequency band used in general digital broadcasting is used. Specifically, the frequency setting unit 15 detects a frequency outside the broadcast band and sets it in the TS modulation unit 12. Thereby, the TS modulation | alteration part 12 can modulate TS according to the frequency outside the broadcasting band. Therefore, it is possible to modulate and send out a home broadcast signal in accordance with a frequency outside the broadcast band without particularly detecting an empty band.

  Although the frequency outside the broadcast band may differ depending on the television used, the frequency setting unit 15 can set a frequency outside the broadcast band for each television used.

[Embodiment 6]
A sixth embodiment of the broadcast signal transmission apparatus according to the present invention will be described below with reference to FIG. FIG. 7 is a block diagram showing a configuration of the broadcast signal transmitting apparatus 106 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 7, the broadcast signal transmission device 106 is further provided with a time input unit 16, a time setting unit 17, and a TOT packet creation unit 18.

  The section information extraction unit 4 extracts time information from the section information in the TS packet information. Specifically, it is extracted from TOT (Time Offset Table). Then, the section information extraction unit 4 outputs the extracted time information to the time input unit 16.

  The time input unit 16 outputs time information to the time setting unit 17. The time setting unit 17 sets the input time information in the internal clock of the TOT packet creation unit 18.

  The TOT packet creation unit 18 creates a TOT packet to be inserted into a home broadcast TS based on the time of the internal clock corrected to the correct time, and outputs the TOT packet to the MPEG2TS multiplexing unit 11. Since the processing of each part thereafter is the same as that of the first embodiment, detailed description thereof is omitted here.

  As a result, the time can be notified to the television receiving the home broadcast.

[Embodiment 7]
A seventh embodiment of the broadcast signal transmitting apparatus according to the present invention will be described below with reference to FIG. FIG. 8 is a block diagram showing the configuration of the broadcast signal transmission apparatus 107 according to this embodiment. Members common to the members according to the sixth embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 8, the broadcast signal transmission device 107 is provided with a time input unit 19 instead of the time input unit 16 in the broadcast signal transmission device 106.

In a situation where a general broadcast cannot be received, it is necessary to manually set the internal clock when it is desired to transmit a home broadcast. The situation where the general broadcast cannot be received is, for example, reception on a remote island or reception failure due to an obstacle. Further, in a facility without antenna equipment, it is naturally impossible to receive.
In this case, the time input unit 19 receives time input from the viewer and outputs the time input to the time setting unit 17. At this time, the viewer may input to the time input unit 19 using a remote controller or the like.

  The subsequent processing of each unit and the effect of this embodiment are the same as those of the sixth embodiment, and thus detailed description thereof is omitted.

[Embodiment 8]
An eighth embodiment of the broadcast signal transmitting apparatus according to the present invention will be described below with reference to FIG. FIG. 9 is a block diagram illustrating a configuration of the broadcast signal transmission apparatus 108 according to the present embodiment. Members common to the members according to the sixth embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 9, the broadcast signal transmission device 108 is provided with a time input unit 20 instead of the time input unit 16 in the broadcast signal transmission device 106.

  The time input unit 20 acquires the time from the external network by NTP (Network Time Protocol) or the like in the external network. Then, the acquired time is output to the time setting unit 17.

  The subsequent processing of each unit and the effect of this embodiment are the same as those of the sixth embodiment, and thus detailed description thereof is omitted.

  The external network shown in FIG. 9 is not limited to the Ether net (registered trademark), and may be any network that can communicate with the broadcast signal transmitting apparatus 108. As an example, the NTP used on the Internet has been described above, but the time input unit 20 may input time information held by a device existing on another network. For example, time information held in a home appliance such as a refrigerator connected to another network such as an ECHO net may be acquired using a special protocol for acquiring the time.

[Embodiment 9]
A ninth embodiment of the broadcast signal transmitting apparatus according to the present invention will be described below with reference to FIG. FIG. 10 is a block diagram showing the configuration of the broadcast signal transmission apparatus 109 according to this embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 10, the broadcast signal transmission device 109 is further provided with a content schedule input unit 21, an EPG creation unit 22, and an EIT creation unit 23.

  The content schedule input unit 21 receives input of schedule data representing a schedule of content data included in a home broadcast signal. The schedule data is input via a medium such as an SD card or manually input by a viewer. The content schedule input unit 21 outputs the accepted schedule to the EPG creation unit 22.

  The EPG creation unit 22 creates EPG (registered trademark) (referred to as Electronic Program Guide or electronic program guide) data based on the input schedule and outputs the data to the EIT creation unit 23.

  Based on the EPG data, the EIT creating unit 23 creates an EIT packet by converting into a format that can be interpreted by the television, and outputs the multiplexed EIT packet to the MPEG2TS multiplexing unit 11.

  Since the processing of each part thereafter is the same as that of the first embodiment, detailed description thereof is omitted.

  This makes it possible to send EPG data to a television that receives home broadcasts.

[Embodiment 10]
A tenth embodiment of a broadcast signal transmission apparatus according to the present invention will be described below with reference to FIG. FIG. 11 is a block diagram showing a configuration of the broadcast signal transmission device 110 according to the present embodiment. Members common to the members according to the ninth embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 11, unlike the broadcast signal transmission device 109 described with reference to FIG. 10, the broadcast signal transmission device 110 is not provided with the content schedule input unit 21, and instead of the EPG creation unit 22. In addition, an EPG data acquisition unit 24 is provided.

  The EPG data acquisition unit 24 communicates with a server (not shown) on an external network, acquires EPG data, and outputs it to the EIT creation unit 23. A server here is a server which acquires the information of the broadcast schedule service for individuals.

  Since the processing and effects of the subsequent units are the same as those in the ninth embodiment, detailed description thereof is omitted.

[Embodiment 11]
An eleventh embodiment of the broadcast signal transmitting apparatus according to the present invention will be described below with reference to FIG. FIG. 12 is a block diagram showing the configuration of the broadcast signal transmission apparatus 111 according to this embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 12, the broadcast signal transmission device 111 is further provided with a logo data input unit 25 and a CDT creation unit 26.

  The logo data input unit 25 holds an area for storing the logo data. If the broadcast signal transmission device 111 has not acquired the logo data, the logo data input unit 25 acquires the logo data from an external network and outputs it to the CDT creation unit 26. To do.

  The CDT creation unit 26 creates a CDT (Common Data Table) packet based on the input logo data and outputs it to the MPEG2TS multiplexing unit 11.

  Here, it supplements about the logo transmission by CDT. The method of transmitting logo data downloaded from an external network by CDT is detailed in “5 Download Transmission Guidelines” in ARIB TR-B14 Volume 1 (1/2) Volume 1 of ARIB TR-B14. Is described. The detailed structure of the CDT is disclosed in Chapter 5.4 “CDT transmission” in the same document. The logo data downloaded from the external network can be transmitted as a broadcast signal when the CDT transmission scheme 1 logo transmission descriptor is arranged in the SDT service loop. Specifically, logo data is arranged and transmitted in “data_module_byte” in the CDT. Details of this transmission scheme are disclosed in section 12.2.2.2 “Downloaded content section transmission scheme” of the ARIB standard number ARIB STD-B21 document. Furthermore, the data format of the logo data is disclosed in “Appendix 3 Download Function Appendix A 3.3 Update of Logo Data” in the same document.

  Since the processing of each part thereafter is the same as that of the first embodiment, detailed description thereof is omitted.

  This makes it possible to transmit the logo data to a television that receives home broadcasts.

[Embodiment 12]
A twelfth embodiment of the broadcast signal transmission apparatus according to the present invention will be described below with reference to FIG. FIG. 13 is a block diagram illustrating a configuration of the broadcast signal transmission device 112 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 13, the broadcast signal transmission device 112 is further provided with a channel number creation unit 27.

  First, the channel number creating unit 27 refers to the reception status table 5 and acquires a channel number of an empty band (hereinafter referred to as an empty channel number).

  When only one vacant channel number can be acquired, the channel number creating unit 27 automatically assigns the vacant channel number to the home broadcast.

  When a plurality of vacant channel numbers are detected, the viewer may select which vacant channel number the home broadcast is assigned to. Alternatively, the channel number creating unit 27 can be set in advance with a channel number selection priority such as the smallest, the largest, or the nth largest, and the home channel number selected based on the priority is set to the home. An internal broadcast may be automatically assigned.

  On the other hand, when no vacant channel number is detected, the viewer may designate an arbitrary channel number among the general broadcast channels as a number assigned to the home broadcast. At this time, the channel number to be assigned may be any number of channels 1 to 12 having a direct channel selection key on the remote controller.

  However, the channel number is not limited to these. A channel selection key may be arranged on the remote control so that the viewer can assign an arbitrary channel number. For example, an arbitrary channel number may be displayed in a menu that can be selected by an input switching key, and home broadcasts may be assigned to the channel number.

  As a method for specifying a channel number when no empty channel number is detected, the channel number creation unit 27 can automatically assign a channel number of a general broadcast that is least frequently used by the viewer to a home broadcast. Good. As a method for the channel number creating unit 27 to scan for an empty channel number, chapter 6.2 of ARIB standard number ARIB TR-B14 “ARIB TR-B14 First Volume (1/2) Volume 2” and FIG. You may employ | adopt the method currently disclosed by this.

  The channel number creation unit 27 creates a NIT (Network Information Table) packet based on the assigned free channel number and outputs the packet to the MPEG2TS multiplexing unit 11. At this time, the channel number assigned to the home broadcast is assigned to “remote_control_id” (hereinafter referred to as remote control identification) in the TS information descriptor of the NIT.

  At this time, the value of the remote control identification can take any of 1 to 12, but it is necessary to assign the remote control identification so as not to overlap with the remote control identification of the channel used in a wide area. For this purpose, it is only necessary to acquire and assign the area identification with reference to service_id (service identification) described in ARIB TR-B14 Volume 3 Volume 7 Section 9.1.3. Here, the above-mentioned area identification is used in home broadcasting. On the other hand, for the identification of the local business operator, it is necessary to select a value that does not overlap with the local business operator of the viewer by referring to the table described in ARIB TR-B14 Volume 3 Volume 7 Chapter 9.2.1. is there.

  When the channel number creation unit 27 detects an empty channel by the above method, and the empty channel is one of the channel selection keys assigned to the remote control used by the viewer, One of the original program broadcasts cannot be selected by one-touch tuning, but tuning from the EPG and direct tuning are possible. An example of assigning a one-touch button (a button for assigning a program of one station to one remote control key) when the channel number creating unit 27 scans an empty channel is disclosed in FIG. .

  Since the processing of each part thereafter is the same as that of the first embodiment, detailed description thereof is omitted.

  This makes it possible to transmit a channel number for broadcasting the home broadcast to a television that receives the home broadcast.

[Embodiment 13]
A thirteenth embodiment of the broadcast signal transmission apparatus according to the present invention will be described below with reference to FIG. FIG. 14 is a block diagram illustrating a configuration of the broadcast signal transmission device 113 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 14, the broadcast signal transmission device 113 is further provided with an EIT creation unit 23, a recording medium 28, a content reading unit 29, and a content information creation unit 30. The communication unit 8 is not provided.

  The EIT creation unit 23 is the same as the EIT creation unit 23 described in the tenth embodiment according to the present invention.

  The recording medium 28 is an HDD (Hard Disk Drive), an SSD (Solid State Drive), various memory cards such as an SD card, a disk-type recording medium such as a next-generation DVD, or a magnetic tape. It is sufficient that the viewer can record arbitrary data. There is no particular limitation.

  In the present embodiment, instead of acquiring the content to be broadcasted in the home broadcast from the external network, the content recorded on the recording medium 28 is acquired and converted to the content to be broadcasted in the home broadcast. Specifically, the content reading unit 29 reads the content data recorded on the recording medium 28 and outputs it to the content information creation unit 30.

  The content information creation unit 30 creates content information based on the input content data and outputs the content information to the EIT creation unit 23. Here, the content information includes the title of the home broadcast content, the date and time transmitted from the broadcast signal transmission device 113, the content content, the content copy control information, and the like.

  Since the processing of each part thereafter is the same as that of the tenth embodiment, detailed description thereof is omitted.

[Embodiment 14]
A fourteenth embodiment of a broadcast signal transmitting apparatus according to the present invention will be described below with reference to FIG. FIG. 15 is a block diagram illustrating a configuration of the broadcast signal transmission device 114 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 15, the broadcast signal transmission device 114 is not provided with the content TS creation unit 9.

  In the present embodiment, the communication unit 8 acquires TS format content from an external network and outputs the content to the MPEG2TS multiplexing unit 11.

  Since the processing of each part thereafter is the same as that of the first embodiment, detailed description thereof is omitted.

  The content is content distributed from a server on the Internet, or a DLNA (Digital Living Network Alliance) server such as NAS (Network Attached Storage) connected to a home network or a recorder connected via i-Link. And content that can be played back by players and the like. In this case, all contents acquired via the external network are TS format contents.

  With the above configuration, the viewer can view the content in the TS format distributed in the external network as if it received general broadcast data.

  Also, the broadcast data creation unit 10 creates data in a format that can be interpreted by a BML (Broadcast Markup Language) browser, and outputs the data to the MPEG2TS multiplexing unit 11 so that the broadcast signal transmission device 114 is a BML browser of a digital TV. It is possible to transmit a home broadcast signal that can be displayed. Therefore, home broadcast data and still images can be rendered using a BML browser in a digital TV that receives home broadcasts.

[Embodiment 15]
A fifteenth embodiment of a broadcast signal transmission apparatus according to the present invention will be described below with reference to FIGS. 16 and 17.

  FIG. 16 is a block diagram illustrating a configuration of the broadcast signal transmission device 115 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 16, the broadcast signal transmission device 115 is further provided with an EIT creation unit 23, a content information creation unit 30, and a content conversion unit 31.

  The EIT creation unit 23 is the same as the EIT creation unit 23 described in the tenth embodiment.

  The content conversion unit 31 converts the content data input from the communication unit 8 into BML in a data format that can be interpreted by a BML browser of a television receiving home broadcast, and outputs the BML to the content TS creation unit 9.

  The content information creation unit 30 creates content information to be reflected in EPG or program information based on the content data input from the communication unit 8.

  Specifically, the content information creation unit 30 changes the content of the EIT and creates content information to be reflected in the EPG and program information. EIT is roughly classified into EIT [p / f] and EIT [schedule].

  EIT [schedule] includes content information to be transmitted from now on, and is mainly used by a television receiver to create an EPG. On the other hand, EIT [p / f] includes content information (EITp) that is currently transmitted and content information (EITf) that is transmitted next. That is, it includes more detailed information on the content. The television receiver uses this more detailed information to display program information. When the content of EITp is changed, the change is reflected in the program information displayed on the receiver. On the other hand, when the content of EIT [schedule] is changed, the change is reflected in the EPG on the receiver side. Details of these descriptors are described in Chapter 31.3 of ARIB TR-B14 Volume 2 Volume 4 of ARIB TR-B14.

  As described above, the broadcast signal transmission device 115 converts the content acquired from the external network into BML, thereby displaying the content on the web such as HTML or image data in the BML browser of the television receiving the home broadcast. It becomes possible to do.

  Next, a portal screen assumed in this embodiment will be described with reference to FIG. FIG. 17 is an example of a portal screen image. The broadcast signal sending device 115 can send a home broadcast signal capable of displaying a portal screen as shown in FIG. 17 using a BML browser.

  In FIG. 17, as shown on the portal screen 160, the viewer can execute functions of viewing content, viewing home appliance setting information, operating home appliances, help, and explanation of focus.

  The viewer can use the various functions described above by using a remote controller that can operate and select an image of the function displayed on the BML browser, for example, an infrared remote controller. Specifically, the viewer presses a four-way arrow button on the remote controller to select a function menu to be used. Then, press the enter button located on the remote control or place the focus on the remote control on the enter button displayed on the BML browser and press the select button on the remote control. Send.

  In addition, the viewer can use any setting function corresponding to the four colors of blue, red, yellow, and green displayed at the bottom of the portal screen 160. These four colors correspond to the four color buttons arranged on the remote control, and the viewer can transmit to the TV which setting function to use by pressing one of the color buttons. Can do.

  The television notifies the broadcast signal transmission device 115 of information on any of the functions specified by the viewer. Here, in order to notify the broadcast signal transmission device 115 from the television, an HTTP local server (not shown) is activated in advance in the broadcast signal transmission device 115, and in the television, BML's tramtextTextDataOverIP () and LaunchDocument ( ) It is good also as a structure which communicates with the said local server using a function.

  With the above configuration, it is possible to transmit information on the function designated by the viewer's remote control operation to the broadcast signal transmission device 115. Therefore, in the broadcast signal transmission device 115, it is possible to execute processing of the function specified by the viewer.

  In this embodiment, the viewer selects a function that the viewer wants to use by operating the infrared remote controller, but the method for selecting the function is not limited to this. Any configuration may be used as long as it can transmit information on functions desired by the viewer to the television.

[Embodiment 16]
A sixteenth embodiment of the broadcast signal transmission apparatus according to the present invention will be described below with reference to FIGS.

  First, the configuration of the broadcast signal transmission device 116 according to the present embodiment will be described with reference to FIG. FIG. 18 is a block diagram illustrating a configuration of the broadcast signal transmission device 116 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 18, the broadcast signal transmission device 116 is further provided with an EIT creation unit 23, an EPG data acquisition unit 24, a home appliance server 32, and a home appliance operation unit 33. The EIT creation unit 23 and the EPG data acquisition unit 24 are the same as the members described in the tenth embodiment. Processing of the home appliance server 32 and the home appliance operation unit 33 will be described later.

  Next, with reference to FIG. 19, a connection state between the broadcast signal transmission device 116 and peripheral devices and a network will be described. FIG. 19 is a diagram showing an example of connection between the broadcast signal transmission device 116 and its peripheral devices and network.

  As shown in FIG. 19, the broadcast signal transmission device 116 is connected to the home LAN 34. The television 37 is also connected to the home LAN 34. At this time, it is assumed that the Ethernet (registered trademark) terminal of the television 37 is connected to the home LAN 34. In this embodiment, Ethernet LAN connection is used, but connection by other communication methods may be used. For example, the present embodiment can also be applied to communications such as wireless LAN, BlueTooth (registered trademark), and Zigbee (registered trademark).

  The home LAN 34 is connected to various home appliances in the house and the sensors 38, the NAS 35, and the router 36. The sensor 38 here is, for example, a power generation amount sensor of a solar panel, an indoor temperature sensor, an illumination sensor, a hot water bath sensor, or the like.

  In the above configuration, the broadcast signal transmission device 116 acquires content acquired from the NAS 35 or a content server on the Internet and data of various sensors 38 connected to the home LAN 34 and converts them into a format that can be broadcast on the television 37. Then, a home broadcast signal is transmitted via wireless or wired communication.

  With the above configuration, the following various processes can be performed.

(Change of setting in broadcast signal transmission device 116)
First, the viewer can change various settings in the broadcast signal transmission device 116 through operations on the BML of the television 37. As a configuration for realizing this, first, various setting information in the broadcast signal transmission device 116 is displayed on the BML browser of the television 37 so that the viewer can refer to it. Then, the viewer inputs the setting information and value to be changed to the television 37 using a remote controller or the like that supports the BML browser. The television 37 transmits the input setting information and value to be changed to the broadcast signal transmission device 116. Here, the configuration for transmission is as described in the fifteenth embodiment. This allows the viewer to change the home broadcast band, change the data sent to the home broadcast, change the channel number corresponding to each band, change the logo data, and general and home broadcasts. It is possible to change the program structure that mixes.

  When the viewer changes the program configuration, the broadcast signal transmission device 116 transmits a broadcast signal according to the changed program configuration. Thereby, the discrepancy between the EPG and the program can be prevented.

(Acquisition of home appliance sensor data)
Further, the viewer can monitor the data of the various sensors described above on the screen of the television 37 and change the setting information of the various home appliances as necessary. This can be realized by the following processing. First, the communication unit 8 receives data from various sensors 38 via the home LAN 34. The home appliance server 32 collects data of various sensors 38 via the communication unit 8 and outputs the collected data to the EPG data acquisition unit 24.

  Since the subsequent processing of each unit is the same as that of the tenth embodiment, detailed description thereof is omitted here.

  Thereby, the data of the various sensors 38 can be converted into signals that can be broadcast on the television 37. Therefore, the viewer can check the information indicated by the various sensors on the screen of the television 37, and can change the settings of each home appliance as necessary based on the information.

  Note that any of the following methods can be used as a method for the home appliance server 32 to recognize home appliances existing on the home LAN 34.

  The first is a method in which a viewer directly inputs a home appliance to be monitored into the broadcast signal transmission device 116 using a keyboard, a remote controller, or the like. The second is a method in which a viewer sets a home appliance to be monitored from another PC connected to an external network or using a remote control operation corresponding to the BML browser of the television 37. The third is a method in which the broadcast signal transmission device 116 automatically detects home appliances connected to the home LAN 34. Although the three methods have been described above, the method for recognizing the home appliance is not limited to these. The home appliance server 32 may be configured to recognize home appliances connected to the home LAN 34.

  Moreover, when the server 32 for household appliances collects the data of various sensors 38, the following methods can be used.

  The first is a method of collecting data from various sensors 38 at a time set in advance by the viewer. The viewer may input the time for collecting various data on the BML browser of the television 37, or may input directly to the broadcast signal transmission device 116 using a keyboard, a remote controller, or the like. The second is a method of automatically transmitting data such as measurement values of the home appliance to the home appliance server 32 every time the viewer uses the home appliance. In this method, for example, in the case of a weight scale, weight data is automatically transmitted to the home appliance server 32 at the timing when the viewer measures the weight. The third is a method in which the viewer transmits arbitrary information to the home appliance server 32 from various portable terminals such as a mobile phone.

(Change home appliance settings)
When changing the setting of the home appliance, the viewer inputs information about the home appliance whose setting is to be changed and the setting value to the television 37 using a remote control or the like that supports the BML browser. The television 37 transmits the input home appliance information and the set value to be changed to the broadcast signal transmission device 116. Here, the configuration for transmitting information from the television 37 to the broadcast signal transmitting apparatus 116 is as described in the fifteenth embodiment.

  The home appliance server 32 of the broadcast signal transmission device 116 outputs the home appliance information and the set value to the home appliance operation unit 33. The home appliance operation unit 33 changes the set value of the change target home appliance based on the input home appliance information and the set value.

  Further, as another method for changing the setting of the home appliance, the home appliance operation unit 33 is based on information on an arbitrary date and time specified by the viewer operating the BML screen, the home appliance to be changed, and the set value. You may communicate and control automatically.

  In this way, for example, changing the temperature of the air conditioner, the illuminance of the illumination, or the temperature of the hot water in the bath can be performed by operating the screen of the television 37.

  In addition, it is possible to implement an application using home appliance information, instead of simply checking the home appliance setting and using it for the change. For example, applications such as graphing the amount of power generated by a solar panel or graphing daily changes based on weight scale data can be realized. In this case, what is necessary is just to mount in the server 32 for household appliances the function which produces the graph which can be displayed on a BML browser.

[Embodiment 17]
A seventeenth embodiment of the broadcast signal transmission apparatus according to the present invention will be described below with reference to FIG. FIG. 20 is a block diagram illustrating a configuration of the broadcast signal transmission device 117 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 20, the broadcast signal transmission device 117 is not provided with the communication unit 8 that communicates with the external network, but is provided with a video data input unit 39 and a video data conversion unit 40 instead.

  The video data input unit 39 acquires moving image data from a camera (not shown), a composite display, a WEB camera, and the like of the broadcast signal transmission device 117 via a USB (registered trademark), and the video data conversion unit 40. To enter.

  The video data converter 40 converts the input moving image data into the TS format. Since the processing of each part thereafter is the same as that of the first embodiment, detailed description thereof is omitted.

  As a result, the broadcast signal transmission device 117 displays the moving image captured by the security camera on the TV for use in security, or displays the video of the intercom TV at the time of the visitor on the TV to make it easier to see the face of the customer. It is possible.

  In this embodiment, the case of inputting video data has been described, but the video data input unit 39 may be a video / audio input data unit 39 that can also input audio data.

  Further, when multiplexing the TS in the MPEG2TS multiplexing unit 11, it may be configured to reflect in the EIT that the program information has been changed, that is, that the video data different from the general broadcast is broadcast. As a result, the broadcast signal transmission device 117 can notify the viewer what video is being output.

[Embodiment 18]
An eighteenth embodiment of the broadcast signal transmission apparatus according to the present invention will be described below with reference to FIG. FIG. 21 is a block diagram showing a configuration of the broadcast signal transmission apparatus 118 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 21, the broadcast signal transmission device 118 is provided with a video / audio data decoding unit 41 and a video / audio data encoding unit 42 between the communication unit 8 and the content TS creation unit 9.

  The video / audio data decoding unit 41 decodes video and audio data input from the communication unit 8 via the external network. At this time, the input data is, for example, H.264 which cannot be decoded by a normal TV. This is video data encoded in a format such as H.264. The video / audio data decoding unit 41 outputs the decoded video data to the video / audio data encoding unit 42.

  The video / audio data encoding unit 42 encodes the input video data into the MPEG2TS format and outputs the encoded video data to the content TS creation unit 9. Since the processing of each part thereafter is the same as that of the first embodiment, detailed description thereof is omitted.

  With the above configuration, H.264 cannot be viewed on a normal TV. It is possible to encode video / audio data encoded in a format such as H.264 into video / audio data in the MPEG2TS format that can be decoded by a normal TV. Therefore, the broadcast signal transmission device 118 can output video / audio data that can be viewed on a normal digital TV.

[Embodiment 19]
A nineteenth embodiment of the broadcast signal transmitting apparatus according to the present invention will be described below with reference to FIG. FIG. 22 is a block diagram illustrating a configuration of the broadcast signal transmission device 119 according to the present embodiment. Members common to the members according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 22, the broadcast signal transmission device 119 is further provided with a key exchange server 43 and an encryption unit 44.

  A TV that receives home broadcasts is connected to the external network, and the key exchange server 43 acquires key data dedicated to the TV from the communication unit 8 via the external network. Then, the key data is output to the MPEG2TS multiplexing unit 11.

  The MPEG2TS multiplexing unit 11 converts the input broadcast data into the TS format, and multiplexes it together with the content TS input from the content TS creation unit 9 and the key data input from the key exchange server 43. The multiplexed TS is output to the encryption unit 44.

  The encryption unit 44 encrypts the TS using the key data and outputs it to the TS modulation unit 12. Since the processing of each part thereafter is the same as that of the first embodiment, detailed description thereof is omitted.

  With the above configuration, the broadcast signal transmission device 119 can exchange key data with a television that receives home broadcasts via an external network, and can encrypt broadcast content using the key data. Accordingly, the content can be viewed only by the television that exchanges the key with the key exchange server 43. That is, the viewer can limit the televisions that can view the content, and can view the content without leaking to a third party.

  When the encrypted content is decrypted on the television, it may be decrypted using a decryption engine of MULTI2 installed on the television.

  Further, instead of decrypting and authenticating the content on the television main body, authentication may be performed with a BCAS card. In this case, it is necessary for the communication unit 8 to acquire the section data (CAT, EMM, ECM) necessary for the television to decode the content via the external network and output it to the MPEG2TS multiplexing unit 11. . Since CAT has already been described in the first embodiment, details thereof are omitted here. The EMM and ECM are supplemented below.

EMM is an abbreviation for Entity Control Message, which is program information, key information (scramble key), and descrambling function control (validation / invalidation) information among related information used for descrambling. . It is called common information.
On the other hand, ECM is an abbreviation of Entity Management Message, and is information such as individual contract information and key information (work key) for decrypting encryption. It is called individual information.

  As for the conditional access system using EMM and ECM, the sections 3.3.2 and 3.2.2 of Part 1 “Control system at reception (limited access system)” in Part 1 of the ARIB standard number ARIB STD-B25 document. 4. In particular, details of the reception flow are disclosed in FIG.

  The MPEG2TS multiplexing unit 11 multiplexes TS together with the input section data. Then, the encryption unit 44 designates the PID of the content TS and configures the TS to be encrypted in the MULTI2 format. As a result, the content can be viewed only on the television in which the BCAS card registered so that the TS can be decrypted is inserted.

  In addition, this invention is not limited to embodiment mentioned above. Those skilled in the art can make various modifications to the present invention within the scope of the claims. That is, a new embodiment can be obtained by combining appropriately changed technical means within the scope of the claims.

  INDUSTRIAL APPLICABILITY The present invention can be widely used as a broadcast signal transmission device that converts, modulates and transmits data other than general digital broadcast signals into a format that can be broadcast on a television. For example, the present invention can be realized as a broadcast signal transmission device that is connected to a digital broadcast compatible television and an external network wirelessly or via a wire.

It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 1st embodiment of this invention. It is a figure which shows an example of the reception condition table which concerns on this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 2nd embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 3rd embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 4th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 5th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on the 6th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 7th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 8th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 9th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 10th Embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 11th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 10th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 13th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 14th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 15th embodiment of this invention. It is an example of the image | video of the portal screen which concerns on 15th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 16th embodiment of this invention. It is a figure which shows the example of a connection with the broadcast signal transmission apparatus which concerns on 16th embodiment of this invention, its peripheral device, and a network. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 17th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 18th embodiment of this invention. It is a block diagram which shows the structure of the broadcast signal transmission apparatus which concerns on 19th embodiment of this invention.

Explanation of symbols

1 Receiving Antenna 2 Digital Broadcast Tuner 3 Packet Demuxer
4 Section information extraction unit 5 Reception status table 6 Empty band detection unit (detection means)
7 Detection Band Setting Unit 8 Communication Unit 9 Content TS Creation Unit (Conversion Unit)
10 Broadcast data creation unit (broadcast data creation means)
11 MPEG2TS multiplexer (multiplexing means)
12 TS modulation section (modulation means)
13 RF signal mixing section (mixing means) (sending means)
14 Radio wave attenuation filter (Radio wave attenuation means)
15 Frequency setting part (detection means)
16, 19, 20 Time input section (time input means)
17 Time setting part (setting means)
18 TOT packet creation unit 21 Content schedule input unit (schedule input means)
22 EPG creation part (program guide creation means)
23 EIT creation part (packet creation means)
24 EPG data acquisition unit (program guide acquisition means)
25 Logo data input part (logo data acquisition means)
26 CDT creation part (CDT creation means)
27 Channel number generator (assignment means)
28 Recording media (recording media)
29 Content Reading Unit 30 Content Information Creation Unit 31 Content Conversion Unit (BML Conversion Unit)
32 Home appliance server (collection means)
33 Home appliance operation part (changing means)
34 Home LAN
35 NAS
36 router 37 television 38 sensor 39 video data input unit 40 video data conversion unit (conversion means)
41 Video / audio data decoding unit (decoding means)
42 Video / audio encoding section (encoding means)
43 Key exchange server (key data input means)
44 Encryption section (encryption means)
50 Horizontal axis 160 Portal screen 101-119 Broadcast signal transmission device

Claims (26)

A broadcast signal transmission device that receives a digital broadcast signal and acquires data from a network or a recording medium,
Conversion means for converting the acquired data into a transport stream signal;
Detecting means for detecting a band other than a broadcast band in which broadcasting is performed in the digital broadcast signal;
Modulation means for modulating the transport stream signal into the detected band based on a modulation method of the digital broadcast signal, and generating a modulated signal;
Mixing means for mixing the modulated signal with the digital broadcast signal to generate a mixed signal;
A broadcast signal transmission apparatus comprising: a transmission means for transmitting the mixed signal to the outside. The detecting means is
2. The broadcast signal transmitting apparatus according to claim 1, wherein a band other than a broadcast band in which broadcasting is performed is detected in the digital broadcast signal existing in a residential area of a television viewer who receives the mixed signal. . The sending means is
Sending the mixed signal to a television that can also receive a signal modulated in a band other than the band used by the digital broadcast signal,
The detecting means is
The broadcast signal transmission device according to claim 1, wherein a band other than a band used by the digital broadcast signal is detected as a band other than a broadcast band in which the broadcast is performed in the digital broadcast signal. Broadcast data creating means for creating broadcast data for the television receiving the mixed signal to recognize the mixed signal as broadcastable data;
4. The broadcast signal transmitting apparatus according to claim 1, further comprising multiplexing means for multiplexing the transport stream signal together with the broadcast data and outputting the multiplexed data to the modulating means. .   5. The multiplexing means converts data other than the transport stream signal and the broadcast data into a transport stream signal, and multiplexes the data together with the transport stream signal and the broadcast data. Broadcast signal transmission device.   6. The broadcast signal transmission apparatus according to claim 4, wherein each of the broadcast data creation means, the multiplexing means, and the modulation means is multiplexed.   Radio wave attenuating means is further provided for attenuating the radio wave of the broadcast signal in the newly broadcast band when a band in which the new broadcast is performed in the digital broadcast signal overlaps with the detected broadcast band. The broadcast signal transmission apparatus according to claim 4, wherein the broadcast signal transmission apparatus is a broadcast signal transmission apparatus. An internal clock,
The multiplexing means is
The broadcast signal transmitting apparatus according to any one of claims 4 to 7, wherein section information created based on a time represented by the internal clock and the transport stream signal are multiplexed. Extracting means for extracting section information from the digital broadcast signal;
9. The broadcast signal transmitting apparatus according to claim 8, further comprising setting means for setting time information included in the extracted section information in the internal clock. Time input means for receiving input of time information;
9. The broadcast signal transmitting apparatus according to claim 8, further comprising setting means for setting the input time information in the internal clock.   9. The broadcast signal transmission apparatus according to claim 8, further comprising setting means for setting time information acquired from data received via the network in the internal clock. Schedule input means for receiving an input of a broadcast schedule for data received via the network;
A program guide creation means for creating an electronic program guide based on the input broadcast schedule;
12. The broadcast signal according to claim 4, further comprising packet creation means for creating an EIT packet based on the created electronic program guide and outputting the packet to the multiplexing means. Sending device. Program guide acquisition means for acquiring an electronic program guide via the network;
The broadcast signal according to any one of claims 4 to 11, further comprising EIT creation means for creating an EIT packet based on the acquired electronic program guide and outputting it to the multiplexing means. Sending device. Logo data acquisition means for acquiring logo data via the network,
The broadcast signal transmission according to any one of claims 4 to 11, further comprising CDT creation means for creating a CDT packet based on the acquired logo data and outputting the CDT packet to the multiplexing means. apparatus.   15. The broadcast signal transmitting apparatus according to claim 1, further comprising an assigning unit that assigns an empty channel number for broadcasting the mixed signal to the mixed signal. Program guide creation means for creating an electronic program guide based on the data read from the recording medium;
The broadcast signal according to any one of claims 4 to 9, further comprising packet creation means for creating an EIT packet based on the created electronic program guide and outputting the packet to the multiplexing means. Sending device. A program guide creating means for creating an electronic program guide based on data received via the network;
BML conversion means for converting data received via the network into BML and outputting the data to the conversion means;
The broadcast signal according to any one of claims 4 to 11, further comprising packet creation means for creating an EIT packet based on the created electronic program guide and outputting the packet to the multiplexing means. Sending device. A collecting means for collecting home appliance sensor data received via the network;
Based on the collected home appliance sensor data, changing means for changing the home appliance settings;
BML conversion means for converting the setting information into BML and outputting it to the conversion means;
Program guide acquisition means for acquiring an electronic program guide via the network;
The broadcast signal according to any one of claims 4 to 11, further comprising packet creation means for creating an EIT packet based on the acquired electronic program guide and outputting the packet to the multiplexing means. Sending device.   19. The viewer instruction detected by the BML browser displaying the BML is received via the network, and the process indicated by the instruction is executed. Broadcast signal transmission device. Decoding means for decoding video and audio data received via the network based on a method in which the video and audio data is encoded;
Encoding means for encoding the decoded video / audio data into stream data in a format that can be decoded by a television receiving the mixed signal;
12. The broadcast signal transmission apparatus according to claim 1, wherein the conversion unit converts the encoded stream data into a transport stream signal. A key data input means for receiving the unique key data of the television connected to the network and receiving the mixed signal via the network, and inputting the key data to the multiplexing means;
12. The apparatus according to claim 4, further comprising an encryption unit that encrypts the transport stream signal multiplexed by the multiplexing unit based on the key data. The broadcast signal transmission device described. Registration means for registering a BCAS card number to be inserted into a television connected to the network and receiving the mixed signal;
12. The method according to claim 4, further comprising encryption means for encrypting the transport stream signal multiplexed by the multiplexing means based on the registered number. The broadcast signal transmitting device according to the item. A broadcast signal transmission device that receives a digital broadcast signal and receives data via a network,
The received data is a transport stream signal received via a home LAN of a television viewer who receives the digital broadcast signal, or distributed from a server on the network,
Detecting means for detecting a band other than a broadcast band in which broadcasting is performed in the digital broadcast signal;
Modulation means for modulating the transport stream signal into the detected band based on a modulation method of the digital broadcast signal, and generating a modulated signal;
Mixing means for mixing the modulated signal with the digital broadcast signal to generate a mixed signal;
A broadcast signal transmission apparatus comprising: a transmission means for transmitting the mixed signal to the outside. A broadcast signal transmission method executed by a broadcast signal transmission apparatus that receives a digital broadcast signal and acquires data from a network or a recording medium,
A conversion step of converting the acquired data into a transport stream signal;
A detection step of detecting a band other than the broadcast band in which broadcasting is performed in the digital broadcast signal;
A modulation step of modulating the transport stream signal into the detected band based on a modulation scheme of the digital broadcast signal to generate a modulated signal;
Mixing step of mixing the modulation signal with the digital broadcast signal to generate a mixed signal;
A broadcast signal transmission method comprising: a transmission step of transmitting the mixed signal to the outside.   A program for operating the broadcast signal transmission device according to any one of claims 1 to 23, wherein the program causes a computer to function as each of the above means.   The computer-readable recording medium which has recorded the program of Claim 25.

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