JP2003032640A - Program specific information sending equipment and system thereof - Google Patents
Program specific information sending equipment and system thereofInfo
- Publication number
- JP2003032640A JP2003032640A JP2001219873A JP2001219873A JP2003032640A JP 2003032640 A JP2003032640 A JP 2003032640A JP 2001219873 A JP2001219873 A JP 2001219873A JP 2001219873 A JP2001219873 A JP 2001219873A JP 2003032640 A JP2003032640 A JP 2003032640A
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- program
- station
- pmt
- information
- broadcasting station
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、１つ以上の放送局
を階層的に配置した放送局ネットワークにおいて、上位
放送局が放送する番組特定情報（Program Specific Inf
ormation）を下位放送局に送信し、下位放送局が上記番
組特定情報のデータの一部を差し替えて送出する番組特
定情報送出装置、及び番組特定情報伝送システムに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a program specific information (Program Specific Information) broadcast by a higher-ranking broadcasting station in a broadcasting station network in which one or more broadcasting stations are hierarchically arranged.
or information) to a lower broadcasting station, and the lower broadcasting station replaces part of the data of the program specifying information and sends it, and a program specifying information transmission system.
【０００２】[0002]
【従来の技術】近年デジタル放送を実施する１つ以上の
放送局を階層的に配置し、映像・音声等の番組と番組特
定情報とを上位放送局から下位放送局に提供する放送局
ネットワークの構築が検討されている。2. Description of the Related Art In recent years, one or more broadcasting stations that carry out digital broadcasting have been hierarchically arranged, and a broadcasting station network for providing programs such as video and audio and program specifying information from a higher broadcasting station to a lower broadcasting station. Construction is under consideration.
【０００３】図１は、放送局ネットワークの一例の構成
図を示す。FIG. 1 is a block diagram showing an example of a broadcasting station network.
【０００４】図１の放送局ネットワークでは、上位のＡ
局１０１の配下に中位のＢ局１０２、Ｂ２局１０３が配
置されている。また、中位のＢ局１０２の配下に下位の
局１０４、Ｃ２局１０５及びＣ３局１０６が配置されて
いる。同様に、中位のＢ２局１０３の配下に下位のＣ４
局１０７、Ｃ５局１０８及びＣ６局１０９が配置されて
いる。In the broadcasting station network of FIG.
Under the control of the station 101, middle B station 102 and B2 station 103 are arranged. Further, subordinate stations 104, C2 station 105, and C3 station 106 are arranged under the middle B station 102. Similarly, a lower C4 is subordinate to the middle B2 station 103.
A station 107, a C5 station 108, and a C6 station 109 are arranged.
【０００５】上位のＡ局１０１は、映像・音声等の番組
をＢ局１０２及びＢ２局１０３に配信する。中位のＢ局
１０２は、Ａ局１０１から配信された映像・音声等の番
組を下位のＣ局１０４、Ｃ２局１０５及びＣ３局１０６
に配信する。同様に、中位のＢ２局１０３は、上位のＡ
局１０１から配信された映像・音声等の番組を下位のＣ
４局１０７、Ｃ５局１０８及びＣ６局１０９に配信す
る。The higher station A 101 delivers programs such as video and audio to the stations B 102 and 103. The B station 102 in the middle position receives the programs such as the video and audio distributed from the A station 101 by the lower C station 104, C2 station 105 and C3 station 106.
To deliver to. Similarly, the middle B2 station 103 is
The video and audio programs distributed from the station 101 are subordinate to C
It is distributed to the fourth station 107, the C5 station 108, and the C6 station 109.
【０００６】以下、説明の容易の為に、上位のＡ局１０
１の配下に中位のＢ局１０２が配置された放送局ネット
ワークについて説明する。Below, for ease of explanation, the higher station A 10
A broadcast station network in which the middle B station 102 is placed under the control of 1 will be described.
【０００７】従来、ネットワークを構成し、デジタル放
送を放送する放送局において、上位放送局（ネットワー
ク上位局）が放送する番組を下位放送局（ネットワーク
下位局）が放送する場合、上位放送局が放送する映像・
音声等の番組の他に番組特定情報（Program Specific I
nformation）に関する情報等を下位放送局に伝送しなけ
ればならない。下位放送局は、上位放送局から伝送され
た番組特定情報を利用して、自局の情報を番組特定情報
を生成する。Conventionally, in a broadcasting station that constitutes a network and broadcasts a digital broadcast, when a lower broadcasting station (network lower station) broadcasts a program broadcast by the upper broadcasting station (network upper station), the higher broadcasting station broadcasts. Video
In addition to programs such as audio, program specific information (Program Specific I
information, etc., must be transmitted to lower broadcasting stations. The lower broadcast station uses the program identification information transmitted from the upper broadcast station to generate the program identification information of its own station.
【０００８】ここで、番組特定情報とは多重化されたＭ
ＰＥＧ２−ＴＳ（Transport Stream）から受信機が自動
的に多重分離しデコードする機能を実現するために提供
されている情報であり、番組特定情報には、ＰＡＴ（Pr
ogram Association Table）、ＣＡＴ（Conditional Acc
ess Table）、ＮＩＴ（Network Information Table）、
ＰＭＴ（Program Map Table）の４種類のテーブルがあ
る。[0008] Here, the program specifying information is multiplexed M
This information is provided to realize the function of the receiver to automatically demultiplex and decode from PEG2-TS (Transport Stream). The program specific information includes PAT (Pr
ogram Association Table), CAT (Conditional Acc
ess Table), NIT (Network Information Table),
There are four types of tables, PMT (Program Map Table).
【０００９】前記テーブルで、ＰＡＴ，ＣＡＴ及びＮＩ
Ｔに関しては、テーブルの変更は殆どない。しかし、Ｐ
ＭＴにおいては、映像・音声・字幕放送・データ放送の
要素やデジタルコピー制御記述子、データ符号化方式記
述子等の複雑な情報が番組単位で変化するばかりでな
く、緊急警報記述子等の複雑な情報が番組単位で変化す
る場合がある。これらの情報を下位放送局に伝送し、下
位放送局でＰＭＴを生成する方法を図を用いて説明す
る。In the table, PAT, CAT and NI
Regarding T, there is almost no change in the table. But P
In MT, not only complex information such as elements of video / audio / captioned broadcasting / data broadcasting, digital copy control descriptors, data encoding method descriptors, etc. change on a program-by-program basis, but also complicated information such as emergency alert descriptors. Information may change on a program-by-program basis. A method of transmitting these pieces of information to the lower broadcast station and generating the PMT in the lower broadcast station will be described with reference to the drawings.
【００１０】図２は従来における放送局ネットワークに
ついて説明する一例の構成図である。FIG. 2 is a block diagram of an example for explaining a conventional broadcasting station network.
【００１１】図２において、Ａ局１０１は上位放送局、
Ｂ局１０２を下位放送局とする。Ａ局１０１は送出制御
装置１２１aと、ＰＭＴ生成装置１２２aと、ＰＭＴ送出
装置１２３aと、エンコーダ１２４aと、多重化装置１２
５aとを備えるように構成される。一方Ｂ局１０２はデ
コーダ１２６と、切り替え装置１２７と、エンコーダ１
２４bと、送出制御装置１２１bと、ＰＭＴ生成装置１２
２bと、ＰＭＴ送出装置１２３bと、多重化装置１２５b
とを備えるように構成される。In FIG. 2, station A 101 is an upper broadcasting station,
Station B 102 is a lower broadcast station. The station A 101 includes a transmission control device 121a, a PMT generation device 122a, a PMT transmission device 123a, an encoder 124a, and a multiplexing device 12.
And 5a. On the other hand, the B station 102 has a decoder 126, a switching device 127, and an encoder 1.
24b, the transmission control device 121b, and the PMT generation device 12
2b, PMT sending device 123b, and multiplexing device 125b
And.
【００１２】Ａ局１０１において、送出制御装置１２１
aは多重化装置１２５aから出力される情報を制御する制
御データを生成する。生成した制御データは、自局放送
用のＰＭＴ生成装置１２２aとＢ局（下位放送局）に出
力する。ＰＭＴ生成装置１２２aでは、制御データから
ＰＭＴをセクション形式で生成する。ＰＭＴ送出装置１
２３aは入力されたセクション形式のＰＭＴをＭＰＥＧ
２−ＴＳ化する。エンコーダ１２４ａは、映像信号及び
音声信号を受けて符号化を行い、映像・音声の番組をＭ
ＰＥＧ２−ＴＳ化して自局放送用の多重化装置１２５ａ
とＢ局（下位放送局）に出力する。多重化装置１２５ａ
では、エンコーダ１２４ａからの映像・音声信号のＭＰ
ＥＧ２―ＴＳとセクション形式のＰＭＴのＭＰＥＧ２−
ＴＳとを多重化して放送信号として出力する。In the A station 101, the transmission control device 121
a generates control data that controls the information output from the multiplexer 125a. The generated control data is output to the PMT generation device 122a for own station broadcasting and the B station (lower broadcasting station). The PMT generator 122a generates a PMT in section format from the control data. PMT sending device 1
23a is an MPEG format of the input section format PMT.
2-TS. The encoder 124a receives the video signal and the audio signal, encodes the video signal and the audio signal, and encodes the video / audio program into M
Multiplexing device 125a for PEG2-TS conversion for own station broadcasting
And station B (subordinate broadcasting station). Multiplexer 125a
Then, the MP of the video / audio signal from the encoder 124a
EG2-TS and section-type PMT MPEG2-
It is multiplexed with TS and output as a broadcast signal.
【００１３】Ｂ局１０２では、Ａ局からの映像・音声信
号のＭＰＥＧ２−ＴＳと送出制御データが入力される。
入力された送出制御データを用いて、Ａ局１０１と同様
に送出制御装置１２１ｂ、ＰＭＴ生成装置１２２ｂ、及
びＰＭＴ送出装置１２３ｂによりセクション形式のＰＭ
ＴのＭＰＥＧ２−ＴＳを生成する。また、映像・音声の
ＭＰＥＧ２−ＴＳデータは、デコーダ１２６でデコード
される。切り替え装置１２７では、Ａ局からの映像を放
送するのか、Ｂ局独自の番組を放送するのかを判断し、
切り替えを行い映像・音声を出力する。出力された映像
・音声信号はエンコーダ１２４ｂでＭＰＥＧ２−ＴＳ化
され、多重化装置１２５にて、セクション形式のＰＭＴ
のＭＰＥＧ２−ＴＳと多重化された後、放送される。In the B station 102, the MPEG2-TS of the video / audio signal and the transmission control data from the A station are input.
Using the input transmission control data, the section control unit 121b, the PMT generation device 122b, and the PMT transmission device 123b, as in the case of the A station 101, are used to output PM in section format.
Generate T MPEG2-TS. The MPEG2-TS data of video / audio is decoded by the decoder 126. The switching device 127 determines whether to broadcast the video from the A station or the program unique to the B station,
Switch and output video / audio. The output video / audio signal is converted into MPEG2-TS by the encoder 124b, and is multiplexed by the multiplexer 125 in section format PMT.
It will be broadcast after being multiplexed with MPEG2-TS.
【００１４】なお、前記の説明においてセクションと
は、受信側で認識できるようにビット列に意味をもたせ
たデータ構造である。In the above description, a section is a data structure in which a bit string has a meaning so that the receiving side can recognize it.
【００１５】ここで、（社）電波産業会（ＡＲＩＢ）規
格「ARIB TR-B15」より抜粋したＰＭＴのデータ構造を
図３に示す。FIG. 3 shows the data structure of the PMT extracted from the "ARIB TR-B15" standard of the Association of Radio Industries and Businesses (ARIB).
【００１６】次に、前述したＰＭＴの伝送において、他
の伝送方法を図を用いて説明する。Next, another transmission method in the above PMT transmission will be described with reference to the drawings.
【００１７】図４は、従来における放送局ネットワーク
システムについて説明する第二の構成例の図である。FIG. 4 is a diagram showing a second configuration example for explaining a conventional broadcasting station network system.
【００１８】図４において、Ａ局１０１（上位放送局）
は送出制御装置１２１ａと、ＰＭＴ生成装置１２２ａ
と、ＰＭＴ送出装置１２３ａと、補助信号データ多重化
装置４０１と、エンコーダ１２４ａと、多重化装置１２
５ａとを備えるように構成される。In FIG. 4, station A 101 (upper broadcasting station)
Is a transmission control device 121a and a PMT generation device 122a
, PMT transmitter 123a, auxiliary signal data multiplexer 401, encoder 124a, multiplexer 12
5a.
【００１９】一方Ｂ局１０２（下位放送局）は、切り替
え装置１２７と、エンコーダ１２４ｂと、補助信号デー
タ受信器４０２と、送出制御装置１２１ｂと、ＰＭＴ生
成装置１２２ｂと、ＰＭＴ送出装置１２３ｂと、多重化
装置１２５ｂとを備えるように構成される。On the other hand, the B station 102 (subordinate broadcasting station) includes a switching device 127, an encoder 124b, an auxiliary signal data receiver 402, a transmission control device 121b, a PMT generation device 122b, a PMT transmission device 123b, and a multiplexing device. And an activating device 125b.
【００２０】Ａ局１０１において、送出制御装置１２１
ａは多重化装置１２５ａから出力される情報を制御する
制御データを生成する。生成した制御データは、ＰＭＴ
生成装置１２２ａと補助信号データ多重化装置４０１と
に出力する。ＰＭＴ生成装置１２２ａでは、制御データ
からＰＭＴをセクション形式で生成する。ＰＭＴ送出装
置１２３ａは入力されたセクション形式のＰＭＴをＭＰ
ＥＧ２−ＴＳ化する。補助信号データ多重化装置４０１
は、映像・音声信号を多重化し、その補助信号データ領
域に制御データをビットデータとして重畳して多重化を
行い、Ｂ局及びエンコーダ１２４ａへ出力する。エンコ
ーダ１２４ａは、映像・音声信号を受けて符号化を行
い、映像・音声の番組をＭＰＥＧ２−ＴＳ化して自局放
送用の多重化装置１２５ａに出力する。多重化装置１２
５ａでは、映像・音声信号のＭＰＥＧ２−ＴＳとセクシ
ョン形式のＰＭＴのＭＰＥＧ２−ＴＳを多重化して放送
信号として出力する。In station A 101, transmission control device 121
a generates control data for controlling the information output from the multiplexer 125a. The generated control data is PMT
The data is output to the generator 122a and the auxiliary signal data multiplexer 401. The PMT generator 122a generates a PMT in section format from the control data. The PMT transmission device 123a uses the input section format PMT as an MP.
Convert to EG2-TS. Auxiliary signal data multiplexer 401
The video / audio signal is multiplexed, control data is superimposed on the auxiliary signal data area as bit data to be multiplexed, and the multiplexed signal is output to the B station and the encoder 124a. The encoder 124a receives and encodes the video / audio signal, converts the video / audio program into MPEG2-TS, and outputs it to the multiplexing device 125a for local station broadcasting. Multiplexer 12
In 5a, the MPEG2-TS of the video / audio signal and the MPEG2-TS of the section format PMT are multiplexed and output as a broadcast signal.
【００２１】Ｂ局１０２では、Ａ局からの映像・音声信
号及び制御データの多重化信号を切り替え装置１２７、
及び補助信号データ受信器４０２に入力する。切り替え
装置１２７では、Ａ局からの映像を放送するのか、Ｂ局
独自の番組を放送するのかを判断し、切り替えを行い映
像・音声をエンコーダ１２４ｂに出力する。ここでは、
入力データ内の制御データ（ビットデータ）は出力画面
上には表示されない補助信号データ領域に存在している
ので、入力データをそのまま用いることによる影響はな
い。エンコーダ１２４ｂは、映像・音声信号を受けて符
号化を行い、映像・音声の番組をＭＰＥＧ２−ＴＳ化し
て自局放送用の多重化装置１２５ｂに出力する。一方、
補助信号データ受信器４０２では、補助信号データ領域
から制御データを抽出し、Ａ局１０１と同様に送出制御
装置１２１ｂ、ＰＭＴ生成装置１２２ｂ、及びＰＭＴ送
出装置１２３ｂによりセクション形式のＰＭＴのＭＰＥ
Ｇ２−ＴＳを生成する。多重化装置１２５ｂは、ＰＭＴ
のＭＰＥＧ２−ＴＳと映像・音声信号のＭＰＥＧ２−Ｔ
Ｓを多重化した後、放送信号として出力される。In the B station 102, a switching device 127 for the multiplexed signal of the video / audio signal and the control data from the A station,
And the auxiliary signal data receiver 402. The switching device 127 determines whether to broadcast the video from the A station or the program unique to the B station, performs switching, and outputs the video / audio to the encoder 124b. here,
Since the control data (bit data) in the input data exists in the auxiliary signal data area that is not displayed on the output screen, there is no effect from using the input data as it is. The encoder 124b receives a video / audio signal, encodes the video / audio program, converts the video / audio program into an MPEG2-TS, and outputs the MPEG2-TS to the multiplexer 125b for local station broadcasting. on the other hand,
In the auxiliary signal data receiver 402, control data is extracted from the auxiliary signal data area, and similarly to the A station 101, the transmission control device 121b, the PMT generation device 122b, and the PMT transmission device 123b are used to perform the section-type PMT MPE.
Generate G2-TS. The multiplexer 125b is a PMT.
MPEG2-TS and MPEG2-T for video / audio signals
After S is multiplexed, it is output as a broadcast signal.
【００２２】[0022]
【発明が解決しようとする課題】前述した図２、図４の
ようにネットワークを構成し、デジタル放送を放送する
放送局において、上位放送局が放送する番組を下位放送
局が放送する場合、上位放送局が放送する番組特定情報
に関する情報を下位放送局に伝送しなければならない。
下位放送局は、上位放送局から伝送された放送する番組
特定情報に関する情報を利用して、自局の情報を付加し
て番組特定情報を生成する必要がある。In a broadcasting station that configures a network as shown in FIGS. 2 and 4 and broadcasts digital broadcasting, when a program broadcast by a higher broadcasting station is broadcast by a lower broadcasting station, Information about program specific information broadcast by a broadcasting station must be transmitted to a lower broadcasting station.
The lower broadcast station needs to add the information of its own station to generate the program specific information by using the information about the program specific information to be broadcast transmitted from the upper broadcast station.
【００２３】図２においては、上位放送局と下位放送局
間に、ＰＭＴ生成に必要な制御データの情報を伝送する
回線が別途必要になる。In FIG. 2, a line for transmitting the control data information necessary for PMT generation is separately required between the upper broadcasting station and the lower broadcasting station.
【００２４】特に、ＰＭＴに関する情報は、映像・音声
・字幕放送・データ放送の要素やデジタルコピー制御記
述子、データ符号化方式記述等の複雑な情報が番組単位
で変化するばかりでなく、緊急警報記述子等番組の途中
で急に変化する場合があるため、これらの情報を下位放
送局に伝送し、下位放送局でＰＭＴを生成する方法は、
伝送用の専用線が必要となる。更に下位放送局にてＰＭ
Ｔを生成し直すが、上位放送局と下位放送局における番
組特定情報の違いは、ＰＭＴセクションのprogram_numb
er（図３の先頭から２５bit目から１６bit分）のみであ
り、それだけの変更だけの為に下位放送局が番組特定情
報を再生成するのは効率的ではない。In particular, the PMT-related information is not only complex information such as video / audio / captioned / data broadcasting elements, digital copy control descriptors, data coding method description, etc. that change on a program-by-program basis, but also an emergency alert. Since the descriptors etc. may change suddenly in the middle of the program, the method of transmitting these information to the lower broadcasting station and generating the PMT in the lower broadcasting station is as follows.
A dedicated line for transmission is required. PM at lower broadcasting stations
Although T is regenerated, the difference between the program specifying information in the upper broadcasting station and the lower broadcasting station is the program_numb in the PMT section.
er (16 bits from the 25th bit from the beginning of FIG. 3) only, and it is not efficient for the lower broadcast station to regenerate the program specifying information due to only that change.
【００２５】また、図４にように、映像の補助領域にビ
ットデータとして多重して伝送し、ビット毎に意味を予
め規定しておき、データの意味から番組特定情報を生成
して送出する方法においては、データのビット列からデ
ータの意味を予め規定する必要があり、ＰＭＴの情報が
追加された場合は、その都度データの意味を規定し直し
て、データの意味からＰＭＴを生成する変換機能を改修
する必要がある。Further, as shown in FIG. 4, a method of multiplexing and transmitting as bit data in the auxiliary area of the video, predefining the meaning for each bit, and generating and sending program specifying information from the meaning of the data In, it is necessary to predefine the meaning of the data from the bit string of the data, and when the PMT information is added, the meaning of the data is redefined each time, and a conversion function for generating the PMT from the meaning of the data is provided. It needs to be repaired.
【００２６】なお、図２及び図４の何れの方法も、下位
放送局が上位放送局の番組を放送中もＰＭＴを生成して
送出しなければならない。2 and 4, the PMT must be generated and transmitted even while the lower broadcasting station is broadcasting the program of the upper broadcasting station.
【００２７】本発明は、前述した問題点に鑑みなされた
ものであり、番組特定情報に関する情報を効率的に伝送
し、送出することが可能となる番組特定情報送出装置及
び番組特定情報伝送システムを提供することを目的とす
る。The present invention has been made in view of the above-mentioned problems, and provides a program specific information transmitting apparatus and a program specific information transmission system capable of efficiently transmitting and transmitting information relating to program specific information. The purpose is to provide.
【００２８】[0028]
【課題を解決するための手段】上記課題を解決するため
に、本件発明は、以下の特徴を有する課題を解決するた
めの手段を採用している。In order to solve the above problems, the present invention employs means for solving the problems having the following features.
【００２９】請求項１に記載された発明は、上位放送局
から伝送される前記上位放送局用の番組特定情報を受信
し、受信した番組特定情報から自局用の番組特定情報を
生成して送出する番組特定情報送出装置であって、前記
上位放送局が放送する番組を自局で放送する場合に、前
記上位放送局用の番組特定情報の一部を差し替えて自局
用の番組特定情報を生成する差し替え手段を備えること
を特徴とする。According to the first aspect of the invention, the program specifying information for the higher broadcasting station transmitted from the higher broadcasting station is received, and the program specifying information for the own station is generated from the received program specifying information. A program specific information transmitting device for transmitting, wherein when a program broadcast by the higher broadcasting station is broadcast by the local station, a part of the program specific information for the higher broadcasting station is replaced and the program specific information for the local station is replaced. It is characterized by comprising a replacement means for generating.
【００３０】請求項１記載の発明によれば、上位放送局
が放送する番組を放送している間は、ＰＭＴを生成する
必要がなく、自局の負担を軽減することができる。According to the first aspect of the present invention, it is not necessary to generate the PMT while the program broadcast by the higher broadcasting station is being broadcast, and the burden on the own station can be reduced.
【００３１】請求項２に記載された発明は、前記差し替
え手段は、パケット化された番組特定情報を上位放送局
から受信し、前記番組特定情報の一部を差し替えて自局
用の番組特定情報を生成することを特徴とする。In the invention described in claim 2, the replacing means receives the packetized program specifying information from a higher broadcasting station, replaces a part of the program specifying information and replaces the program specifying information for its own station. Is generated.
【００３２】請求項２記載の発明によれば、上位放送局
が放送する番組を放送している間は、ＰＭＴを生成する
必要がなく、自局の負担を軽減することができる。According to the second aspect of the present invention, it is not necessary to generate the PMT while the program broadcast by the upper broadcasting station is being broadcast, and the burden on the own station can be reduced.
【００３３】請求項３に記載された発明は、前記差し替
え手段は、パケット化されたＰＭＴを上位放送局から受
信し、上記ＰＭＴを自局がセクション形式化し、その情
報の一部を差し替えてＣＲＣを再計算した後、再度パケ
ット化することを特徴とする。According to a third aspect of the present invention, the replacing means receives the packetized PMT from an upper broadcasting station, converts the PMT into a section format by itself, and replaces a part of the information with the CRC. Is re-calculated and then re-packetized.
【００３４】請求項３記載の発明によれば、上位放送局
から伝送された番組特定情報を一部分のみを差し替える
のみなので、効率的に送出することができる。According to the third aspect of the present invention, only part of the program specifying information transmitted from the upper broadcasting station is replaced, so that the program specifying information can be efficiently transmitted.
【００３５】請求項４に記載された発明は、前記差し替
え手段は、映像信号の補助信号データ領域にセクション
形式で多重した番組特定情報を上位放送局から受信し、
前記番組特定情報の一部を差し替えて自局用の番組特定
情報を生成することを特徴とする。According to a fourth aspect of the present invention, the replacing means receives from the upper broadcasting station the program specifying information multiplexed in the section format in the auxiliary signal data area of the video signal,
It is characterized in that a part of the program specifying information is replaced to generate program specifying information for its own station.
【００３６】請求項４記載の発明によれば、映像や音声
と同じ回線に多重して伝送するので、番組特定情報伝送
専用の回線が必要なく、回線費用を低減することができ
る。According to the fourth aspect of the present invention, since the video and audio are multiplexed and transmitted on the same line, a line dedicated to transmitting the program specific information is not required, and the line cost can be reduced.
【００３７】請求項５に記載された発明は、前記番組特
定情報は、ＰＭＴであることを特徴とする。The invention described in claim 5 is characterized in that the program specifying information is PMT.
【００３８】請求項５記載の発明によれば、映像や音声
と同じ回線に多重して伝送するので、番組特定情報伝送
専用の回線が必要なく、回線費用を低減することができ
る。According to the fifth aspect of the present invention, since the video and audio are multiplexed and transmitted on the same line, a line dedicated to the transmission of program specific information is not required, and the line cost can be reduced.
【００３９】請求項６に記載された発明は、１つ以上の
放送局が階層的に配置され、上位放送局から１つ以上の
下位放送局に番組特定情報を伝送する番組特定情報伝送
システムであって、前記上位放送局は、上位放送局用の
番組特定情報を生成する番組特定情報生成手段と、生成
した番組特定情報を下位放送局に伝送する番組特定情報
伝送手段とを備え、前記下位放送局は、前記上位放送局
が放送する番組を自局で放送する場合に、前記上位放送
局用の番組特定情報の一部を差し替えて自局用の番組特
定情報を生成する差し替え手段を備えることを特徴とす
る。The invention described in claim 6 is a program specific information transmission system in which one or more broadcasting stations are hierarchically arranged and program specific information is transmitted from an upper broadcasting station to one or more lower broadcasting stations. The upper broadcasting station includes program specifying information generating means for generating program specifying information for the upper broadcasting station, and program specifying information transmitting means for transmitting the generated program specifying information to the lower broadcasting station. The broadcasting station is provided with replacement means for replacing a part of the program specifying information for the upper broadcasting station and generating the program specifying information for the own station when the program broadcast by the higher broadcasting station is broadcast by itself. It is characterized by
【００４０】請求項６記載の発明によれば、上位放送局
が放送する番組を放送している間は、自局の負担を軽減
することができる。According to the sixth aspect of the present invention, it is possible to reduce the burden on the own station while the program broadcast by the upper broadcasting station is being broadcast.
【００４１】請求項７に記載された発明は、前記番組特
定情報伝送手段は、番組特定情報をセクション形式で映
像信号の補助信号データ領域に重畳して伝送することを
特徴とする。The invention as set forth in claim 7 is characterized in that the program specifying information transmitting means superimposes the program specifying information in a section format on the auxiliary signal data area of the video signal and transmits it.
【００４２】請求項７記載の発明によれば、映像や音声
と同じ回線に多重して伝送するので、番組特定情報伝送
専用の回線が必要なく、回線費用を低減することができ
る。According to the seventh aspect of the invention, since the video and audio are multiplexed and transmitted on the same line, a line dedicated to transmitting the program specific information is not required, and the line cost can be reduced.
【００４３】[0043]
【発明の実施の形態】本発明の実施の形態について、図
面を用いて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.
【００４４】図５は本発明の番組特定情報伝送システム
の一実施例の構成図を示す。FIG. 5 shows a block diagram of an embodiment of the program specific information transmission system of the present invention.
【００４５】図５において、Ａ局１０１（上位放送局）
は、送出制御装置１２１ａと、ＰＭＴ生成装置１２２ａ
と、ＰＭＴ送出装置１２３ａと、エンコーダ１２４ａ
と、多重化装置１２５ａとを備えるように構成される。In FIG. 5, station A 101 (upper broadcasting station)
Is a transmission control device 121a and a PMT generation device 122a.
, PMT sending device 123a, and encoder 124a
And a multiplexer 125a.
【００４６】一方Ｂ局１０２（下位放送局）は、ＴＳ分
離装置５０１と、デコーダ１２６と、切り替え装置１２
７と、エンコーダ１２４ｂと、送出制御装置１２１ｂ
と、ＰＭＴ生成装置１２２ｂと、ＰＭＴ送出装置１２３
ｂと、ＰＭＴ差し替え装置５０２と、多重化装置１２
５ｂとを備えるように構成される。On the other hand, the B station 102 (subordinate broadcasting station) has a TS separating device 501, a decoder 126, and a switching device 12.
7, the encoder 124b, and the transmission control device 121b
, PMT generation device 122b, and PMT transmission device 123
b, the PMT replacing device 502, and the multiplexing device 12
5b.
【００４７】Ａ局１０１において、送出制御装置１２１
ａは多重化装置１２５ａから出力される情報を制御する
制御データを生成する。生成した制御データは、ＰＭＴ
生成装置１２２ａに出力する。ＰＭＴ生成装置１２２ａ
では、制御データからＰＭＴをセクション形式で生成す
る。ＰＭＴ送出装置１２３ａは入力されたセクション形
式のＰＭＴをＭＰＥＧ２−ＴＳ化する。エンコーダ１２
４ａは、映像信号及び音声信号を受けて符号化を行い、
映像・音声の番組をＭＰＥＧ２−ＴＳ化して多重化装置
１２５ａに出力する。多重化装置１２５ａでは、映像・
音声信号のＭＰＥＧ２−ＴＳとセクション形式のＰＭＴ
のＭＰＥＧ２−ＴＳを多重化して出力すると共に、Ｂ局
１０２へも同様のＭＰＥＧ２−ＴＳを出力する。In station A 101, transmission control device 121
a generates control data for controlling the information output from the multiplexer 125a. The generated control data is PMT
Output to the generation device 122a. PMT generation device 122a
Then, the PMT is generated in section format from the control data. The PMT transmission device 123a converts the input section format PMT into MPEG2-TS. Encoder 12
4a receives a video signal and an audio signal, performs encoding,
The video / audio program is converted into MPEG2-TS and output to the multiplexer 125a. With the multiplexer 125a,
Audio signal MPEG2-TS and section type PMT
And outputs the same MPEG2-TS to the B station 102.
【００４８】Ｂ局１０２では、Ａ局からのＭＰＥＧ２−
ＴＳをＴＳ分離装置５０１でセクション形式のＰＭＴの
ＭＰＥＧ２−ＴＳと映像・音声信号のＭＰＥＧ２−ＴＳ
に分離を行う。分離後の映像・音声信号のＭＰＥＧ２−
ＴＳはデコーダ１２６によりデコードされ切り替え装置
１２７ａへ出力される。切り替え装置１２７ａでは、Ａ
局１０１が放送する番組を放送するか、Ｂ局独自の番組
を放送するかによる切り替えを行う。ここで、Ｂ局１０
２で作成した、映像・音声を放送する場合は、送出制御
装置１２１ｂ、ＰＭＴ生成装置１２２ｂ、ＰＭＴ送出装
置１２３ｂを用いてセクション形式のＰＭＴのＭＰＥＧ
２−ＴＳを生成する。Ａ局１０１の放送する番組をＢ局
１０２で放送する場合は、ＴＳ分離装置５０１により分
離されたセクション形式のＰＭＴのＭＰＥＧ２−ＴＳを
ＰＭＴ差し替え装置５０２に入力し、ＰＭＴのprogra
m_number部の値を自局用のprogram_numberに変更して出
力する。切り替え装置１２７ｂでは、放送される番組に
よりセクション形式のＰＭＴのＭＰＥＧ２−ＴＳを切り
替えて多重化装置１２５ｂへ出力する。多重化装置１２
５ｂは入力されたセクション形式のＰＭＴのＭＰＥＧ２
−ＴＳと映像・音声信号のＭＰＥＧ２−ＴＳを多重化し
て出力する。At station B 102, MPEG2-from station A
The TS is separated by the TS separation device 501 from the section-type PMT MPEG2-TS and the video / audio signal MPEG2-TS.
To separate. MPEG2 of video / audio signals after separation
The TS is decoded by the decoder 126 and output to the switching device 127a. In the switching device 127a, A
Switching is performed depending on whether to broadcast a program broadcast by the station 101 or a program unique to the B station. Here, station B 10
In the case of broadcasting the video / audio created in 2, the transmission control device 121b, the PMT generation device 122b, and the PMT transmission device 123b are used to make a section-type PMT MPEG.
2-TS is generated. When broadcasting a program broadcast by the station A 101 at the station B 102, the section-format PMT MPEG2-TS separated by the TS separation apparatus 501 is input to the PMT replacement apparatus 502, and the PMT program is programmed.
Change the value of m_number part to the program_number for your station and output. The switching device 127b switches the section format PMT MPEG2-TS according to the broadcast program and outputs it to the multiplexing device 125b. Multiplexer 12
5b is the input section format PMT MPEG2
-Multiple TS and MPEG2-TS of video / audio signals are output.
【００４９】ここで、ＰＭＴ差し替え装置５０２につ
いて、図を用いて説明する。Here, the PMT replacing device 502 will be described with reference to the drawings.
【００５０】図６は、ＰＭＴ差し替え装置の一構成例の
図である。FIG. 6 is a diagram showing an example of the configuration of the PMT replacement device.
【００５１】図６において、ＰＭＴ差し替え装置５０
２はセクション化部６０１と、差し替え部６０２と、Ｃ
ＲＣ再計算部６０３と、ＴＳ化部６０４とを備えるよう
に構成される。In FIG. 6, the PMT replacing device 50
2 is a sectioning unit 601, a replacement unit 602, and C
It is configured to include an RC recalculation unit 603 and a TS conversion unit 604.
【００５２】セクション化部６０１では、ＭＰＥＧ２−
ＴＳ化されたＰＭＴからセクション形式のＰＭＴに変更
する。差し替え部６０２では、セクションの先頭から２
５ビット目〜４０ビット目までを放送番組番号識別（pr
ogram_number）として、Ｂ局の放送番組番号識別に差し
替えを行う。ＣＲＣ再計算部６０３では、差し替えた後
のセクションのＣＲＣ（cyclic redundancy check）を
再計算する。ＴＳ化部６０４では、セクションをＭＰＥ
Ｇ２―ＴＳ形式に構成し、決められた送出周期で送出す
る。In the sectioning unit 601, the MPEG2-
The PMT converted into a TS is changed to the section type PMT. In the replacement unit 602, 2 from the beginning of the section
The 5th to 40th bits identify the broadcast program number (pr
gram_number) is replaced with the broadcast program number identification of station B. The CRC recalculation unit 603 recalculates the CRC (cyclic redundancy check) of the section after replacement. In the TS conversion unit 604, the section is MPE
It is configured in the G2-TS format and is transmitted at a determined transmission cycle.
【００５３】図５の実施例より、下位放送局は、上位放
送局が放送する番組を放送している間はＰＭＴを生成す
る必要がなく、Ａ局１０１においては図２と同様の設備
でありながら、映像や音声と同じ回線に多重して伝送す
るので、番組特定情報伝送専用の回線が必要なく、回線
費用を低減することができる。According to the embodiment shown in FIG. 5, the lower broadcasting station does not need to generate the PMT while broadcasting the program broadcast by the upper broadcasting station, and the station A has the same equipment as that shown in FIG. However, since it is multiplexed and transmitted on the same line as video and audio, a line dedicated to transmitting program specific information is not required, and the line cost can be reduced.
【００５４】次に、本発明を使用した第２の実施例を図
を用いて説明する。Next, a second embodiment using the present invention will be described with reference to the drawings.
【００５５】図７は、本発明の特定情報伝送システムの
第２の実施例の構成図である。FIG. 7 is a block diagram of the second embodiment of the specific information transmission system of the present invention.
【００５６】図７において、Ａ局１０１は、送出制御装
置１２１ａと、ＰＭＴ生成装置１２２ａと、ＰＭＴ送出
装置１２３ａと、エンコーダ１２４ａと、多重化装置１
２５ａと、補助信号セクション多重装置７０１とを備え
るように構成される。一方Ｂ局１０２は、切り替え装置
１２７と、エンコーダ１２４ｂと、送出制御装置１２１
ｂと、ＰＭＴ生成装置１２２ｂと、ＰＭＴ送出装置１２
３ｂと、補助信号データセクション分離装置７０２と、
ＰＭＴ差し替え装置７０３と、多重化装置１２５ｂと
を備えるように構成される。In FIG. 7, the station A 101 includes a transmission control device 121a, a PMT generation device 122a, a PMT transmission device 123a, an encoder 124a, and a multiplexing device 1.
25a and an auxiliary signal section multiplexer 701. On the other hand, the B station 102 includes the switching device 127, the encoder 124b, and the transmission control device 121.
b, the PMT generation device 122b, and the PMT transmission device 12
3b, an auxiliary signal data section separation device 702,
The PMT replacement device 703 and the multiplexing device 125b are provided.
【００５７】図７の実施例では、Ａ局１０１（上位放送
局）は、ＡＲＩＢ規格 ＳＴＤ−Ｂ６「５２５／６０テ
レビジョン方式のビット直列インターフェースにおける
補助データ」又は、ＡＲＩＢ規格ＢＴＡ―００５Ｂ「１
１２５／６０方式ＨＤＴＶビット直列インターフェース
における補助データの共通規格」の方式で規定される補
助データパケットを用いてＰＭＴのセクションを映像・
音声信号に多重して伝送する。In the embodiment shown in FIG. 7, the A station 101 (upper broadcasting station) uses the ARIB standard STD-B6 "Auxiliary data in the 525/60 television system bit serial interface" or the ARIB standard BTA-005B "1".
The PMT section is imaged using the auxiliary data packet specified by the "Standard of auxiliary data for 125/60 HDTV bit serial interface".
It is multiplexed with the audio signal and transmitted.
【００５８】Ａ局１０１において、送出制御装置１２１
aは多重化装置１２５aから出力される情報を制御する制
御データを生成する。生成した制御データは、ＰＭＴ生
成装置１２２aに出力する。ＰＭＴ生成装置１２２aで
は、制御データからＰＭＴをセクション形式で生成し、
ＰＭＴ送出装置１２３ａ及び補助信号データセクション
多重装置７０１に出力する。ＰＭＴ送出装置１２３aは
入力されたセクション形式のＰＭＴをＭＰＥＧ２−ＴＳ
化する。補助信号データセクション多重装置７０１は、
映像・音声信号の補助信号データ領域にＰＭＴセクショ
ンを多重化させて、そのベースバンド信号をＢ局へ伝送
する。エンコーダ１２４ａは、映像・音声信号とセクシ
ョン形式のＰＭＴの多重化信号をエンコードし、多重化
装置１２５ａへ出力する。多重化装置１２５ａは、エン
コーダ１２４ａから入力される映像・音声のＭＰＥＧ２
−ＴＳとＰＭＴ送出装置１２３ａから送出されるセクシ
ョン形式のＰＭＴのＭＰＥＧ２−ＴＳを多重化して送出
する。In station A 101, transmission control device 121
a generates control data that controls the information output from the multiplexer 125a. The generated control data is output to the PMT generation device 122a. The PMT generator 122a generates PMT from the control data in the section format,
It outputs to the PMT sending device 123a and the auxiliary signal data section multiplexing device 701. The PMT transmission device 123a uses the input section format PMT as the MPEG2-TS.
Turn into. The auxiliary signal data section multiplexer 701 is
The PMT section is multiplexed in the auxiliary signal data area of the video / audio signal, and the baseband signal is transmitted to the B station. The encoder 124a encodes the video / audio signal and the multiplexed signal of the PMT in the section format, and outputs the encoded signal to the multiplexer 125a. The multiplexer 125a is a MPEG2 video / audio input from the encoder 124a.
-TS and PMT MPEG2-TS of a section format sent from the PMT sending device 123a are multiplexed and sent.
【００５９】Ｂ局１０２では、Ａ局からのベースバンド
信号をそのまま切り替え装置１２７ａと補助信号データ
セクション分離装置７０２に入力する。切り替え装置１
２７ａでは、Ａ局１０１が放送する番組を放送するか、
Ｂ局独自の番組を放送するかによる信号の切り替えを行
う。エンコーダ１２４ｂは、入力された映像・音声信号
をエンコードして、ＭＰＥＧ２−ＴＳ化した信号を多重
化装置１２５ｂに出力する。ここで、切り替え装置１２
７ａにおいて、Ｂ局１０２独自の番組（映像・音声）を
放送する場合は、送出制御装置１２１ｂ、ＰＭＴ生成装
置１２２ｂ、ＰＭＴ送出装置１２３ｂを用いてセクショ
ン形式のＰＭＴのＭＰＥＧ２−ＴＳを生成する。一方、
Ａ局１０１の放送する番組をＢ局１０２で放送する場合
は、補助信号データセクション分離装置７０２にてベー
スバンド信号の補助信号データ領域部からセクション形
式のＰＭＴを抽出し、ＰＭＴ差し替え装置７０３へ出
力する。ＰＭＴ差し替え装置７０３では、セクション
形式のＰＭＴ内のprogram_numberをＡ局の番号から自局
の番号に変換して出力する。切り替え装置１２７ｂでは
放送される番組によりＰＭＴのＭＰＥＧ２−ＴＳを切り
替えて多重化装置１２５ｂへ出力する。多重化装置１２
５ｂでは、ＭＰＥＧ２−ＴＳ化された映像・音声信号と
ＰＭＴのＭＰＥＧ２−ＴＳを多重化して送出を行う。In the B station 102, the baseband signal from the A station is input as it is to the switching device 127a and the auxiliary signal data section separating device 702. Switching device 1
At 27a, the program broadcast by station A 101 is broadcast,
The signal is switched depending on whether the program unique to station B is broadcast. The encoder 124b encodes the input video / audio signal and outputs the MPEG2-TS converted signal to the multiplexing device 125b. Here, the switching device 12
In 7a, when broadcasting a program (video / audio) unique to the B station 102, a transmission control device 121b, a PMT generation device 122b, and a PMT transmission device 123b are used to generate a section-format PMT MPEG2-TS. on the other hand,
When the program broadcast by the station A 101 is broadcast by the station B 102, the auxiliary signal data section separation device 702 extracts the PMT in the section format from the auxiliary signal data area portion of the baseband signal and outputs it to the PMT replacement device 703. To do. The PMT replacing device 703 converts the program_number in the PMT in the section format from the station A number to its own station number and outputs it. The switching device 127b switches the MPEG2-TS of the PMT according to the broadcast program and outputs it to the multiplexing device 125b. Multiplexer 12
In 5b, the MPEG2-TS converted video / audio signal and the PMT MPEG2-TS are multiplexed and transmitted.
【００６０】ここで、ＰＭＴ差し替え装置７０３につ
いて、図を用いて説明する。Here, the PMT replacement device 703 will be described with reference to the drawings.
【００６１】図８は、ＰＭＴ差し替え装置の第２の構成
例の図である。FIG. 8 is a diagram of a second configuration example of the PMT replacement device.
【００６２】図８において、ＰＭＴ差し替え装置７０
３は、差し替え部６０２と、ＣＲＣ再計算部６０３と、
ＴＳ化部６０４とを備えるように構成される。In FIG. 8, the PMT replacement device 70
3 is a replacement unit 602, a CRC recalculation unit 603,
And a TS conversion unit 604.
【００６３】図８は、セクション形式のＰＭＴが入力さ
れると、差し替え部６０２は、セクションの先頭から２
５ビット目〜４０ビット目までを放送番組番号識別（pr
ogram_number）として、Ｂ局の放送番組番号識別に差し
替えを行う。ＣＲＣ再計算部６０３では、差し替えた後
のセクションのＣＲＣ（cyclic redundancy check）を
再計算する。ＴＳ化部６０４では、セクションをＭＰＥ
Ｇ２―ＴＳ形式に構成し、決められた送出周期で送出す
る。In FIG. 8, when the PMT in the section format is input, the replacing unit 602 displays 2 from the beginning of the section.
The 5th to 40th bits identify the broadcast program number (pr
gram_number) is replaced with the broadcast program number identification of station B. The CRC recalculation unit 603 recalculates the CRC (cyclic redundancy check) of the section after replacement. In the TS conversion unit 604, the section is MPE
It is configured in the G2-TS format and is transmitted at a determined transmission cycle.
【００６４】図７の実施例より、上位放送局の番組を下
位放送局で放送するネットワークにおいて、下位放送局
は番組特定情報（Program Specific Information）の一
部分のみを差し替えるだけなので、効率的にＰＭＴを生
成し送出することができる。また、映像や音声と同じ回
線に多重して伝送するので、番組特定情報伝送専用の回
線が必要なく、回線費用を低減することができる。ま
た、ＰＭＴの情報が追加された場合、ＰＭＴを生成する
変換を改修する必要がないので柔軟性がある。また、本
発明によれば、下位放送局が、上位放送局が放送する番
組を放送している間は、ＰＭＴを生成する必要がなくな
る。According to the embodiment shown in FIG. 7, in a network in which a program of an upper broadcasting station is broadcast by a lower broadcasting station, the lower broadcasting station only replaces a part of the program specific information (Program Specific Information), so that the PMT can be efficiently used. Can be generated and sent. Also, since the video and audio are multiplexed and transmitted on the same line, a line dedicated to transmitting program specific information is not required, and the line cost can be reduced. In addition, when the PMT information is added, there is no need to modify the conversion for generating the PMT, which is flexible. Further, according to the present invention, it becomes unnecessary for the lower broadcast station to generate the PMT while broadcasting the program broadcast by the higher broadcast station.
【００６５】なお、本発明における第２の実施例におい
て、補助信号データ領域にセクション形式のＰＭＴをセ
ットした後多重化を行ったが、補助信号データ領域に重
畳して多重化する情報においては、ＰＭＴでなくてもよ
い。In the second embodiment of the present invention, the section type PMT is set in the auxiliary signal data area and then multiplexed, but in the information to be superimposed and multiplexed in the auxiliary signal data area, It need not be PMT.
【００６６】ここで、補助信号データ領域にＰＭＴ等の
番組配列情報及びその他のセクションを重畳して多重す
る方法について説明する。Here, a method of superimposing program arrangement information such as PMT and other sections on the auxiliary signal data area and multiplexing the same will be described.
【００６７】図９は補助信号データ領域の構成図であ
る。FIG. 9 is a block diagram of the auxiliary signal data area.
【００６８】補助データパケットは、ＡＲＩＢ規格ＳＴ
Ｄ−Ｂ６「５２５／６０テレビジョン方式のビット直列
インターフェースにおける補助データ」又は、ＡＲＩＢ
規格ＢＴＡ―００５Ｂ「１１２５／６０方式ＨＤＴＶビ
ット直列インターフェースにおける補助データの共通規
格」の方式で規定される第一形式（補助データパケッ
ト）の構造とし、１ワードは１０ビットとする。The auxiliary data packet is an ARIB standard ST.
D-B6 "Auxiliary data in 525/60 television bit serial interface" or ARIB
The structure is in the first format (auxiliary data packet) defined by the standard BTA-005B “Common standard for auxiliary data in 1125/60 system HDTV bit serial interface”, and one word has 10 bits.
【００６９】番組配列情報及びその他のセクションは、
ＵＤＷ（ユーザデータワード）を用いてセクション単位
として伝送する。ＵＤＷは、番組配列情報及びその他の
セクションヘッダ及びセクションデータで構成する。Ｕ
ＤＷの最大値は２５５ワードであるため、ヘッダを含む
セクションデータが２５５を超える場合は、セクション
データを分割して複数のＵＤＷにより伝送する。Program arrangement information and other sections are
It is transmitted in section units using UDW (User Data Word). The UDW is composed of program arrangement information and other section headers and section data. U
Since the maximum value of DW is 255 words, when the section data including the header exceeds 255, the section data is divided and transmitted by a plurality of UDWs.
【００７０】図１０にセクションヘッダワードのビット
割り当ての一例を示す。FIG. 10 shows an example of bit allocation of the section header word.
【００７１】また、図１１に番組配列情報識別子の一例
を示す。FIG. 11 shows an example of the program arrangement information identifier.
【００７２】番組配列情報識別子により、セクションデ
ータの種類を識別することができ、補助信号データ領域
にセクションを挿入することができる。The type of section data can be identified by the program arrangement information identifier, and the section can be inserted in the auxiliary signal data area.
【００７３】なお、受け取り側では、セクションヘッダ
ワードのビット列により番組配列情報を識別し、セクシ
ョンデータを抽出することができる。The receiving side can identify the program arrangement information by the bit string of the section header word and extract the section data.
【００７４】次に、本発明を利用した第３の実施例を図
を用いて説明する。Next, a third embodiment utilizing the present invention will be described with reference to the drawings.
【００７５】図１２は、本発明の番組特定情報伝送シス
テムの第３の実施例の構成図である。FIG. 12 is a block diagram of the third embodiment of the program specific information transmission system of the present invention.
【００７６】図１２において、Ａ局１０１は、送出制御
装置１２１ａと、ＰＭＴ生成装置１２２ａと、ＰＭＴ送
出装置１２３ａと、エンコーダ１２４ａと、多重化装置
１２５ａとを備えるように構成される。一方Ｂ局１０２
は、デコーダ１２６と、切り替え装置１２７と、エンコ
ーダ１２４ｂと、送出制御装置１２１ｂと、ＰＭＴ生成
装置１２２ｂと、ＰＭＴ送出装置１２３ｂと、ＰＭＴ差
し替え装置７０３と、多重化装置１２５ｂとを備える
ように構成される。In FIG. 12, station A 101 is constructed so as to include a transmission control device 121a, a PMT generation device 122a, a PMT transmission device 123a, an encoder 124a, and a multiplexing device 125a. On the other hand, station B 102
Is configured to include a decoder 126, a switching device 127, an encoder 124b, a transmission control device 121b, a PMT generation device 122b, a PMT transmission device 123b, a PMT replacement device 703, and a multiplexing device 125b. It
【００７７】Ａ局１０１において、送出制御装置１２１
aは多重化装置１２５aから出力される情報を制御する制
御データを生成する。生成した制御データは、ＰＭＴ生
成装置１２２aに出力する。ＰＭＴ生成装置１２２aで
は、制御データからＰＭＴをセクション形式で生成した
後、ＰＭＴ送出装置１２３ａ及びＢ局１０２へ出力す
る。ＰＭＴ送出装置１２３aは入力されたセクション形
式のＰＭＴをＭＰＥＧ２−ＴＳ化する。エンコーダ１２
４ａは、映像・音声信号をエンコードし、多重化装置１
２５ａへ出力する。多重化装置１２５ａは、エンコーダ
１２４ａから入力されるＭＰＥＧ２−ＴＳとＰＭＴ送出
装置１２３ａから送出されるセクション形式のＭＰＥＧ
２−ＴＳを多重化して放送すると共にＢ局１０２へ送出
する。In station A 101, transmission control device 121
a generates control data that controls the information output from the multiplexer 125a. The generated control data is output to the PMT generation device 122a. The PMT generation device 122a generates the PMT from the control data in the section format, and then outputs the PMT to the PMT transmission device 123a and the B station 102. The PMT transmission device 123a converts the input section format PMT into MPEG2-TS. Encoder 12
4a encodes a video / audio signal, and multiplex device 1
25a. The multiplexer 125a is an MPEG2-TS input from the encoder 124a and a section format MPEG transmitted from the PMT transmitter 123a.
The 2-TS is multiplexed and broadcast, and also transmitted to the B station 102.
【００７８】Ｂ局１０２では、デコーダ１２６におい
て、受け取った映像・音声の多重化信号をデコードし、
切り替え装置１２７ａへ出力する。切り替え装置１２７
ａでは、Ａ局１０１が放送する番組を放送するか、Ｂ局
独自の番組を放送するかによる切り替えを行う。エンコ
ーダ１２４ｂは、入力された映像・音声信号をエンコー
ドして、ＭＰＥＧ２−ＴＳ化した信号を多重化装置１２
５ｂに出力する。ここで、切り替え装置１２７ａにてＢ
局１０２で作成した番組（映像・音声）を放送する場合
は、送出制御装置１２１ｂ、ＰＭＴ生成装置１２２ｂ、
ＰＭＴ送出装置１２３ｂを用いてセクション形式のＰＭ
ＴのＭＰＥＧ２−ＴＳを生成する。ＰＭＴ差し替え装置
７０３では、ＰＭＴセクション内のprogram _number
をＡ局の番号から自局の番号に変換して出力する。切り
替え装置１２７ｂでは放送される番組によりＰＭＴのＭ
ＰＥＧ２−ＴＳを切り替えて多重化装置１２５ｂへ出力
する。多重化装置１２５ｂでは、映像・音声信号のＭＰ
ＥＧ２−ＴＳとセクション形式のＰＭＴのＭＰＥＧ２−
ＴＳを多重化して送出を行う。In the B station 102, the decoder 126 decodes the received video / audio multiplexed signal,
Output to the switching device 127a. Switching device 127
In a, switching is performed depending on whether to broadcast the program broadcast by the A station 101 or the program unique to the B station. The encoder 124b encodes the input video / audio signal and converts the MPEG2-TS signal into the multiplexing device 12
Output to 5b. Here, B is switched by the switching device 127a.
When broadcasting a program (video / audio) created by the station 102, the transmission control device 121b, the PMT generation device 122b,
PM in section format using the PMT sending device 123b
Generate T MPEG2-TS. In the PMT replacing device 703, the program_number in the PMT section
Is converted from the station A number to the own station number and output. In the switching device 127b, the PMT M
The PEG2-TS is switched and output to the multiplexer 125b. In the multiplexer 125b, the MP of the video / audio signal is
EG2-TS and section format PMT MPEG2-
The TS is multiplexed and transmitted.
【００７９】図１２においては、Ａ局１０１からＢ局１
０２に送出するセクション形式のＰＭＴを別回線を用い
て伝送している。In FIG. 12, station A 101 to station B 1
The section-type PMT to be sent to No. 02 is transmitted using another line.
【００８０】図１２の実施例により、上位放送局の番組
を下位放送局で放送するネットワークにおいて、下位放
送局は番組特定情報（Program Specific Information）
の一部分のみを差し替えるだけなので、効率的にＰＭＴ
を生成し送出することができる。また、ＰＭＴの情報が
追加された場合にも、ＰＭＴを生成する変換を改修する
必要がないので柔軟性がある。また、本発明によれば、
下位放送局が、上位放送局が放送する番組を放送してい
る間は、ＰＭＴを生成する必要がなくなる。According to the embodiment shown in FIG. 12, in a network in which a program of a higher broadcasting station is broadcast by a lower broadcasting station, the lower broadcasting station has program specific information.
Efficient PMT as it only replaces a part of
Can be generated and sent. Further, even when the PMT information is added, there is no need to modify the conversion for generating the PMT, so there is flexibility. Further, according to the present invention,
While the lower broadcasting station is broadcasting the program broadcast by the upper broadcasting station, it is not necessary to generate the PMT.
【００８１】[0081]
【発明の効果】上述の如く本発明によれば、番組特定情
報（Program Specific Information）に関する情報を効
率的に伝送し、送出することが可能となる番組特定情報
送出方法、及び番組情報伝送システムを提供することが
できる。As described above, according to the present invention, there is provided a program specific information transmitting method and a program information transmitting system capable of efficiently transmitting and transmitting information relating to program specific information. Can be provided.
【図１】放送局ネットワークの一例の構成図である。FIG. 1 is a configuration diagram of an example of a broadcasting station network.
【図２】従来における放送局ネットワークについて説明
する一例の構成図である。FIG. 2 is a configuration diagram of an example for explaining a conventional broadcasting station network.
【図３】ＰＭＴのデータ構造である。FIG. 3 is a data structure of PMT.
【図４】従来における放送局ネットワークについて説明
する第２の構成例である。FIG. 4 is a second configuration example illustrating a conventional broadcasting station network.
【図５】本発明の番組特定情報伝送システムの一実施例
の構成図である。FIG. 5 is a configuration diagram of an embodiment of a program specific information transmission system of the present invention.
【図６】ＰＭＴ差し替え装置の一構成例の図である。FIG. 6 is a diagram showing a configuration example of a PMT replacement device.
【図７】本発明の番組特定情報伝送システムの第２の実
施例の構成図である。FIG. 7 is a configuration diagram of a second embodiment of the program specific information transmission system of the present invention.
【図８】ＰＭＴ差し替え装置の第２の構成例の図であ
る。FIG. 8 is a diagram of a second configuration example of the PMT replacement device.
【図９】補助信号データ領域（補助データパケット）の
構成図である。FIG. 9 is a configuration diagram of an auxiliary signal data area (auxiliary data packet).
【図１０】セクションヘッダワードのビット割り当ての
一例である。FIG. 10 is an example of bit allocation of a section header word.
【図１１】番組配列情報識別子の一例である。FIG. 11 is an example of a program sequence information identifier.
【図１２】本発明の番組特定情報伝送システムの第３の
実施例の構成図である。FIG. 12 is a configuration diagram of a third embodiment of the program specific information transmission system of the present invention.
１０１ Ａ局（上位放送局） １０２ Ｂ局（下位放送局） １２１ 送出制御装置 １２２ ＰＭＴ生成装置 １２３ ＰＭＴ送出装置 １２４ エンコーダ １２５ 多重化装置 １２６ デコーダ １２７ 切り替え装置 ４０１ 補助信号データ多重化装置 ４０２ 補助信号データ受信器 ５０１ ＴＳ分割装置 ５０２ ＰＭＴ差し替え装置 ６０１ セクション化部 ６０２ 差し替え部 ６０３ ＣＲＣ再計算部 ６０４ ＴＳ化部 ７０１ 補助信号データセクション多重装置 ７０２ 補助信号データセクション分離装置 ７０３ ＰＭＴ差し替え装置 101 station A (upper broadcasting station) 102 station B (subordinate broadcasting station) 121 Sending control device 122 PMT generator 123 PMT sending device 124 encoder 125 multiplexer 126 decoder 127 switching device 401 Auxiliary signal data multiplexer 402 Auxiliary signal data receiver 501 TS divider 502 PMT replacement device 601 sectioning section 602 replacement unit 603 CRC recalculation unit 604 TS conversion section 701 Auxiliary signal data section multiplexer 702 Auxiliary signal data section separation device 703 PMT replacement device
Claims (7)
局用の番組特定情報を受信し、受信した番組特定情報か
ら自局用の番組特定情報を生成して送出する番組特定情
報送出装置であって、 前記上位放送局が放送する番組を自局で放送する場合
に、前記上位放送局用の番組特定情報の一部を差し替え
て自局用の番組特定情報を生成する差し替え手段を備え
ることを特徴とする番組特定情報送出装置。1. A program specifying information transmitting device for receiving program specifying information for a higher broadcasting station transmitted from a higher broadcasting station, generating program specifying information for its own station from the received program specifying information, and transmitting the program specifying information. When the program broadcast by the higher broadcasting station is broadcast by the local station, a replacement means is provided for replacing a part of the program specifying information for the higher broadcasting station to generate the program specifying information for the own station. An apparatus for transmitting program specific information, characterized by:
番組特定情報を上位放送局から受信し、前記番組特定情
報の一部を差し替えて自局用の番組特定情報を生成する
ことを特徴とする請求項１記載の番組特定情報送出装
置。2. The replacing means receives packetized program specifying information from a higher broadcasting station and replaces a part of the program specifying information to generate program specifying information for its own station. The program specific information transmitting device according to claim 1.
ＰＭＴを上位放送局から受信し、上記ＰＭＴを自局がセ
クション形式化し、その情報の一部を差し替えてＣＲＣ
を再計算した後、再度パケット化することを特徴とする
請求項１又は２記載の番組特定情報送出装置。3. The replacing means receives a packetized PMT from an upper broadcasting station, converts the PMT into a section format by itself, replaces part of the information, and inserts the CRC into the CRC.
3. The program specific information transmitting device according to claim 1, wherein the packet is re-calculated after recalculating.
号データ領域にセクション形式で多重した番組特定情報
を上位放送局から受信し、前記番組特定情報の一部を差
し替えて自局用の番組特定情報を生成することを特徴と
する請求項１記載の番組特定情報送出装置。4. The replacement means receives from a higher broadcasting station program identification information multiplexed in a section format in an auxiliary signal data area of a video signal, replaces part of the program identification information, and identifies a program for its own station. The program specific information transmitting apparatus according to claim 1, wherein the apparatus generates information.
を特徴とする請求項４記載の番組特定情報送出装置。5. The program specifying information transmitting apparatus according to claim 4, wherein the program specifying information is PMT.
上位放送局から１つ以上の下位放送局に番組特定情報を
伝送する番組特定情報伝送システムであって、 前記上位放送局は、上位放送局用の番組特定情報を生成
する番組特定情報生成手段と、 生成した番組特定情報を下位放送局に伝送する番組特定
情報伝送手段とを備え、 前記下位放送局は、前記上位放送局が放送する番組を自
局で放送する場合に、前記上位放送局用の番組特定情報
の一部を差し替えて自局用の番組特定情報を生成する差
し替え手段を備えることを特徴とする番組特定情報伝送
システム。6. One or more broadcasting stations are arranged hierarchically,
A program specific information transmission system for transmitting program specific information from a higher broadcasting station to one or more lower broadcasting stations, wherein the upper broadcasting station is program specific information generating means for generating program specific information for the upper broadcasting station. A program specifying information transmitting means for transmitting the generated program specifying information to a lower broadcasting station, wherein the lower broadcasting station is for the upper broadcasting station when the program broadcast by the upper broadcasting station is broadcast by itself. A program specifying information transmission system comprising a replacing means for replacing a part of the program specifying information and generating the program specifying information for its own station.
情報をセクション形式で映像信号の補助信号データ領域
に重畳して伝送することを特徴とする請求項６記載の番
組特定情報伝送システム。7. The program specific information transmission system according to claim 6, wherein said program specific information transmission means superimposes the program specific information in a section format on the auxiliary signal data area of the video signal and transmits it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001219873A JP2003032640A (en) | 2001-07-19 | 2001-07-19 | Program specific information sending equipment and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001219873A JP2003032640A (en) | 2001-07-19 | 2001-07-19 | Program specific information sending equipment and system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003032640A true JP2003032640A (en) | 2003-01-31 |
Family
ID=19053794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001219873A Pending JP2003032640A (en) | 2001-07-19 | 2001-07-19 | Program specific information sending equipment and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003032640A (en) |
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