JP4519726B2 - Broadcast material signal switching transmission device and switching control device - Google Patents

Broadcast material signal switching transmission device and switching control device Download PDF

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JP4519726B2
JP4519726B2 JP2005203296A JP2005203296A JP4519726B2 JP 4519726 B2 JP4519726 B2 JP 4519726B2 JP 2005203296 A JP2005203296 A JP 2005203296A JP 2005203296 A JP2005203296 A JP 2005203296A JP 4519726 B2 JP4519726 B2 JP 4519726B2
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陽子 吉沢
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Toshiba Corp
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この発明は、放送局内において、複数系統の放送素材信号を選択的に切り替えて送出する放送素材信号切替送出装置及び切替制御装置に関する。   The present invention relates to a broadcast material signal switching transmission device and a switching control device for selectively switching and transmitting a plurality of broadcast material signals in a broadcasting station.

放送局にあっては、編成時刻に合わせてスイッチャーにより番組素材データを送出したり、番組素材データからＣＭ（コマーシャル）素材データに切り替えて送出している。この場合、自動番組送出制御装置からの切替制御信号に基づいて番組素材データの切り替えやＣＭ素材データの切り替えを行なうようにしている（例えば、特許文献１）。
特開２００３−３１８９０８号公報。 In a broadcasting station, program material data is transmitted by a switcher in accordance with the scheduling time, or switched from program material data to CM (commercial) material data for transmission. In this case, switching of program material data and switching of CM material data is performed based on a switching control signal from the automatic program transmission control device (for example, Patent Document 1).
JP2003-318908A.

ところで、上記放送局では、スイッチャーにより番組素材データの切り替えやＣＭ素材データの切り替えを行なう場合に、以下の問題を改善することが要望されている。
近年、開始されている地上デジタル放送では、アナログ放送よりも緻密かつ正確な処理が要求される。この要求に対し、局内の各スタジオ機器の制御を基本的に秒単位で行なっており、このため、制御時間誤差が一定以上に至った場合に、番組素材データ切り替えの繋ぎ目に一瞬不要な画面が見える等の現象が発生することがある。 By the way, in the broadcasting station, it is desired to improve the following problems when switching the program material data and the CM material data by the switcher.
In recent years, terrestrial digital broadcasting that has been started requires more precise and accurate processing than analog broadcasting. In response to this request, each studio device in the station is basically controlled in units of seconds. Therefore, if the control time error exceeds a certain level, a screen that is unnecessary for a moment when the program material data is switched is displayed. A phenomenon such as seeing may occur.

この発明の目的は、放送素材信号の系統を切り替える際に、それぞれの系統間で切替タイミングを合わせることができ、しかも送出信号に乱れを生じさせることない放送素材信号切替送出装置及び切替制御装置を提供することにある。   An object of the present invention is to provide a broadcast material signal switching transmission device and a switching control device that can adjust the switching timing between the respective systems when switching the system of the broadcast material signal and that do not cause disturbance in the transmission signal. It is to provide.

この発明は、上記目的を達成するために、以下のように構成される。
互いにブロック構造となる複数系統の放送素材信号を切替指示信号に応じて選択的に切り替えて送出する放送素材信号切替送出装置において、映像信号の同期信号を発生する同期信号発生手段と、切替指示信号が入力されるとき、切替指示信号から同期信号に同期したタイミングで、放送素材信号の系統切替に必要な切替制御信号を生成する切替制御信号生成手段と、切替制御信号及び同期信号に基づいて、切替元となる系統の放送素材信号のブロックと切替先となる系統の放送素材信号のブロックとを同期させて、切り替える切替手段とを備えるようにしたものである。 In order to achieve the above object, the present invention is configured as follows.
In a broadcast material signal switching transmission device for selectively switching and transmitting a plurality of broadcast material signals having a block structure according to a switching instruction signal, a synchronization signal generating means for generating a synchronizing signal of a video signal, and a switching instruction signal Is input at the timing synchronized with the synchronization signal from the switching instruction signal, based on the switching control signal and the synchronization signal, the switching control signal generating means for generating a switching control signal necessary for system switching of the broadcast material signal, Switching means is provided for switching the block of the broadcast material signal of the system serving as the switching source and the block of the broadcast material signal of the system serving as the switching destination to synchronize.

この構成によれば、切替指示信号が入力されたときに、この切替指示信号から映像信号の同期信号に同期したタイミングで、放送素材信号の系統切替に必要な切替制御信号を生成し、この切替制御信号及び同期信号に基づいて、切替元の系統の放送素材信号と切替先の系統の放送素材信号とをブロック単位で同期させた上で、切り替えるようにしている。   According to this configuration, when a switching instruction signal is input, a switching control signal necessary for system switching of the broadcast material signal is generated at a timing synchronized with the synchronizing signal of the video signal from the switching instruction signal. Based on the control signal and the synchronization signal, the broadcast material signal of the switching source system and the broadcast material signal of the system of the switching destination are synchronized on a block basis and then switched.

従って、映像信号の同期信号を利用して系統間の放送素材信号をブロック単位で同期させることができるようになり、これによってブロック単位で切替タイミングの制御を行えるようになる。   Therefore, it becomes possible to synchronize the broadcast material signal between the systems in units of blocks by using the synchronization signal of the video signal, and thereby it is possible to control the switching timing in units of blocks.

以上詳述したようにこの発明によれば、放送素材信号の系統を切り替える際に、それぞれの系統間で切替タイミングを合わせることができ、しかも送出信号に乱れを生じさせることない放送素材信号切替送出装置及び切替制御装置を提供することができる。   As described above in detail, according to the present invention, when switching the broadcasting material signal system, the switching timing can be matched between the respective systems, and the broadcasting material signal switching transmission without causing disturbance in the transmission signal. A device and a switching control device can be provided.

以下、この発明の実施形態について図面を参照して詳細に説明する。
図１は、この発明の一実施形態とする放送番組送出システムの概略構成を示すブロック図である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of a broadcast program transmission system according to an embodiment of the present invention.

図１のシステムにおいて、バス１０には番組サーバ（ＶＴＲ：Video Tape Recorder）１１、ＣＭサーバ１２、スイッチャー１３及び自動番組送出制御装置（ＡＰＣ）１４が接続される。   In the system of FIG. 1, a program server (VTR: Video Tape Recorder) 11, a CM server 12, a switcher 13, and an automatic program transmission control device (APC) 14 are connected to the bus 10.

番組サーバ１１は放送すべき放送素材信号としての番組データを記録し、自動番組送出制御装置１４からの再生指令信号に基づき、記録した番組データを再生してスイッチャー１３に出力する。また、自動番組送出制御装置１４からの再生停止指令信号に基づき、番組データを再生停止する。ＣＭサーバ１２は放送すべきＣＭ（コマーシャル）データを記録し、自動番組送出制御装置１４からの再生指令信号に基づき、記録したＣＭデータを再生してスイッチャー１３に出力する。これら番組サーバ１１の出力及びＣＭサーバ１２の出力は、スイッチャー１３によって選択的に導出され、以後放送信号として送出される。自動番組送出制御装置１４は、データサーバ（図示せず）から提供される放送スケジュールデータに従って、番組サーバ１１及びＣＭサーバ１２に再生指令信号または再生停止指令信号を送出した上で、スイッチャー１３の切替制御を行なう。また、自動番組送出制御装置１４は、番組サーバ１１の出力及びＣＭサーバ１２の出力以外にも、他の番組データの送出制御及び切替制御も行なっている。   The program server 11 records program data as a broadcast material signal to be broadcast, reproduces the recorded program data based on a reproduction command signal from the automatic program transmission control device 14, and outputs it to the switcher 13. Further, the program data reproduction is stopped based on the reproduction stop command signal from the automatic program transmission control device 14. The CM server 12 records CM (commercial) data to be broadcast, reproduces the recorded CM data based on the reproduction command signal from the automatic program transmission control device 14, and outputs the CM data to the switcher 13. The output of the program server 11 and the output of the CM server 12 are selectively derived by the switcher 13 and thereafter transmitted as a broadcast signal. The automatic program transmission control device 14 transmits a reproduction command signal or a reproduction stop command signal to the program server 11 and the CM server 12 according to broadcast schedule data provided from a data server (not shown), and then switches the switcher 13. Take control. In addition to the output of the program server 11 and the output of the CM server 12, the automatic program transmission control device 14 performs transmission control and switching control of other program data.

ところで、この実施形態において、番組サーバ１１、ＣＭサーバ１２、スイッチャー１３及び自動番組送出制御装置１４は、同期信号発生器１５から発生する映像の同期信号となるＢＢ（Black Burst）同期信号に基づいて動作する。   By the way, in this embodiment, the program server 11, the CM server 12, the switcher 13 and the automatic program transmission control device 14 are based on a BB (Black Burst) synchronization signal which is a video synchronization signal generated from the synchronization signal generator 15. Operate.

同期信号発生器１５は、ＢＢ同期信号を生成して、番組サーバ１１、ＣＭサーバ１２、スイッチャー１３及び自動番組送出制御装置１４に供給する。   The synchronization signal generator 15 generates a BB synchronization signal and supplies it to the program server 11, the CM server 12, the switcher 13 and the automatic program transmission control device 14.

これに対し、自動番組送出制御装置１４は、図２に示すように、同期インタフェース（Ｉ／Ｆ）部１４１と、制御部１４２と、バスインタフェース（Ｉ／Ｆ）部１４３とを備えている。   On the other hand, as shown in FIG. 2, the automatic program transmission control device 14 includes a synchronous interface (I / F) unit 141, a control unit 142, and a bus interface (I / F) unit 143.

同期インタフェース（Ｉ／Ｆ）部１４１は、同期信号発生器１５との間のインタフェース処理を行って、ＢＢ同期信号を受信するものである。バスインタフェース部１４３は、バス１０との間のインタフェース処理を行うものである。   The synchronization interface (I / F) unit 141 performs interface processing with the synchronization signal generator 15 and receives a BB synchronization signal. The bus interface unit 143 performs interface processing with the bus 10.

制御部１４２は、番組サーバ１１、ＣＭサーバ１２及びスイッチャー１３に対する通常の制御機能に加えて、フィールド同期制御部１４２１を備えている。   The control unit 142 includes a field synchronization control unit 1421 in addition to normal control functions for the program server 11, the CM server 12, and the switcher 13.

フィールド同期制御部１４２１は、放送スケジュールデータに従って、番組データの切替指示からＢＢ同期信号のタイミングで、番組サーバ１１及びＣＭサーバ１２に再生指令信号または再生停止指令信号を送出した上で、スイッチャー１３の切替制御を行なう。   The field synchronization control unit 1421 sends a reproduction command signal or a reproduction stop command signal to the program server 11 and the CM server 12 at the timing of the BB synchronization signal from the program data switching instruction according to the broadcast schedule data. Perform switching control.

次に、上記構成における動作について説明する。
すなわち、自動番組送出制御装置１４は、放送スケジュールデータによる切替指示またはユーザの手動操作による切替指示信号が与えられると、切替指示信号受信後のＢＢ同期信号のタイミングで切替指示が到達したと認識し、番組サーバ１１及びＣＭサーバ１２に再生指令信号または再生停止指令信号を送出した後、スイッチャー１３に対しバス１０を介して切替制御信号を送出する。 Next, the operation in the above configuration will be described.
That is, the automatic program transmission control device 14 recognizes that the switching instruction has arrived at the timing of the BB synchronization signal after receiving the switching instruction signal when the switching instruction by the broadcast schedule data or the switching instruction signal by the user's manual operation is given. Then, after a playback command signal or a playback stop command signal is sent to the program server 11 and the CM server 12, a switching control signal is sent to the switcher 13 via the bus 10.

スイッチャー１３は、切替制御信号が到来すると、この切替制御信号受信後のＢＢ同期信号のタイミングで、切替元の番組データの映像フィールドと切替先の番組データの映像フィールドとを合わせた上で切り替えを行う。これにより、切替前の番組データと切替後の番組データが映像フィールド単位で切り替えられることになる。   When the switching control signal arrives, the switcher 13 switches the switching after combining the video field of the switching source program data and the switching destination program data at the timing of the BB synchronization signal after receiving the switching control signal. Do. As a result, the program data before switching and the program data after switching are switched on a video field basis.

以上のように上記実施形態では、自動番組送出制御装置１４に切替指示信号が入力されたときに、自動番組送出制御装置１４にて映像信号のＢＢ同期信号に同期したタイミングで、番組サーバ１１及びＣＭサーバ１２に再生指令信号または再生停止指令信号を送出し、しかる後にスイッチャー１３に対し切替制御信号を送出し、スイッチャー１３にてこの切替制御信号受信後のＢＢ同期信号のタイミングで、切替元の番組データの映像フィールドと切替先の番組データの映像フィールドとを合わせた上で切り替えるようにしている。   As described above, in the above-described embodiment, when the switching instruction signal is input to the automatic program transmission control device 14, the automatic program transmission control device 14 synchronizes with the BB synchronization signal of the video signal, and the program server 11 and A reproduction command signal or a reproduction stop command signal is sent to the CM server 12, and then a switching control signal is sent to the switcher 13. At the timing of the BB synchronization signal after the switching control signal is received by the switcher 13, the switching source signal is sent. Switching is performed after the video field of the program data and the video field of the program data to be switched are combined.

従って、映像信号のＢＢ同期信号を利用して切替元の番組データと切替先の番組データとを映像フィールド単位で同期させることができるようになり、これによって映像フィールド単位でスイッチャー１３における切替タイミングの制御を行えるようになる。   Accordingly, it becomes possible to synchronize the switching source program data and the switching destination program data in units of video fields using the BB synchronization signal of the video signal, and thereby the switching timing of the switcher 13 in units of video fields. It becomes possible to control.

また、上記実施形態では、番組サーバ１１、ＣＭサーバ１２、スイッチャー１３及び自動番組送出制御装置１４を全て映像フィールドに同期化することができ、これによりシステム全体の高精度な制御が可能となる。   In the above embodiment, the program server 11, the CM server 12, the switcher 13, and the automatic program transmission control device 14 can all be synchronized with the video field, thereby enabling highly accurate control of the entire system.

なお、上記実施形態では、映像信号の同期信号としてＢＢ同期信号を使用していたが、ＢＢ同期信号以外の信号を使用するようにしてもよい。   In the above embodiment, the BB synchronization signal is used as the synchronization signal of the video signal. However, a signal other than the BB synchronization signal may be used.

また、上記実施形態は、２系統の切り替えを行なう場合について説明したが、さらに多数の系統を有する場合でも同様に実施可能である。   Moreover, although the said embodiment demonstrated the case where switching of 2 systems was performed, even when it has many more systems, it can implement similarly.

さらに、上記実施形態では、映像フィールド単位で制御を行なう例について説明したが、映像フレーム単位であってもよい。   Furthermore, in the above-described embodiment, an example in which control is performed in units of video fields has been described, but it may be performed in units of video frames.

その他、この発明は上記実施形態に限定されるものではなく、種々変形して実施可能である。   In addition, the present invention is not limited to the above embodiment, and can be implemented with various modifications.

この発明の一実施形態とする放送番組送出システムの概略構成を示すブロック図。1 is a block diagram showing a schematic configuration of a broadcast program transmission system as an embodiment of the present invention. 図２に示した自動番組送出制御装置の機能構成を示すブロック図。The block diagram which shows the function structure of the automatic program transmission control apparatus shown in FIG.

符号の説明Explanation of symbols

１０…バス、１１…番組サーバ、１２…ＣＭサーバ、１３…スイッチャー、１４…自動番組送出制御装置（ＡＰＣ）、１５…同期信号発生器。   DESCRIPTION OF SYMBOLS 10 ... Bus, 11 ... Program server, 12 ... CM server, 13 ... Switcher, 14 ... Automatic program transmission control apparatus (APC), 15 ... Synchronization signal generator.

Claims (4)

互いにブロック構造となる複数系統の放送素材信号を切替指示信号に応じて選択的に切り替えて送出する放送素材信号切替送出装置において、
映像信号の同期信号を発生する同期信号発生手段と、
少なくとも１系統の放送素材信号を記録し、入力される再生指令信号に基づいて、記録した放送素材信号を再生して出力するサーバと、
前記切替指示信号が入力されるとき、前記切替指示信号から前記同期信号に同期したタイミングで、前記サーバに前記再生指令信号を送出し、前記放送素材信号の系統切替に必要な切替制御信号を生成する切替制御信号生成手段と、
前記切替制御信号及び前記同期信号に基づいて、切替元となる系統の放送素材信号のブロックと切替先となる系統の放送素材信号のブロックとを同期させて、切り替える切替手段とを具備したことを特徴とする放送素材信号切替送出装置。 In a broadcast material signal switching transmission device for selectively switching and transmitting a plurality of broadcast material signals having a block structure according to a switching instruction signal,
Synchronization signal generating means for generating a synchronization signal of the video signal;
A server for recording at least one broadcast material signal and reproducing and outputting the recorded broadcast material signal based on the input reproduction command signal;
When the switching instruction signal is input, the reproduction instruction signal is transmitted to the server at a timing synchronized with the synchronization signal from the switching instruction signal, and a switching control signal necessary for system switching of the broadcast material signal is generated. Switching control signal generating means for
Based on the switching control signal and the synchronization signal, it comprises switching means for synchronizing and switching the block of the broadcasting material signal of the system serving as the switching source and the block of the broadcasting material signal of the system serving as the switching destination. A broadcast material signal switching transmission device characterized. 前記複数系統の放送素材信号がそれぞれ映像フィールド構造であるとき、
前記切替手段は、前記切替制御信号及び前記同期信号に基づいて、切替元となる系統の放送素材信号の映像フィールドと切替先となる系統の放送素材信号の映像フィールドとを同期させて、切り替えることを特徴とする請求項１記載の放送素材信号切替送出装置。 When each of the plurality of broadcast material signals has a video field structure,
Based on the switching control signal and the synchronization signal, the switching means synchronizes and switches the video field of the broadcasting material signal of the system serving as the switching source and the video field of the broadcasting material signal of the system serving as the switching destination. The broadcast material signal switching transmission device according to claim 1. サーバから再生出力され複数系統でブロック構造の放送素材信号を切替指示信号に応じて選択的に切り替える切替手段を制御する切替制御装置において、
映像信号の同期信号を受信する同期信号受信手段と、
切替指示信号が入力されるとき、前記同期信号に同期したタイミングで、前記サーバに再生指令信号を送出し、切替元となる系統の放送素材信号のブロックと切替先となる系統の放送素材信号のブロックとを同期させて、前記切替手段を切り替える制御手段とを具備したことを特徴とする切替制御装置。 In a switching control device for controlling switching means for selectively switching a broadcast material signal of a block structure in a plurality of systems according to a switching instruction signal, which is reproduced and output from a server ,
Synchronization signal receiving means for receiving a synchronization signal of a video signal;
When a switching instruction signal is input , a playback command signal is sent to the server at a timing synchronized with the synchronization signal, and the broadcasting material signal block of the switching source system and the broadcasting material signal of the switching system A switching control device comprising control means for switching the switching means in synchronization with a block. 前記複数系統の放送素材信号がそれぞれ映像フィールド構造であるとき、
前記制御手段は、前記同期信号に同期したタイミングで、切替元となる系統のデジタル放送信号の映像フィールドと切替先となる系統のデジタル放送信号の映像フィールドとを同期させて、切り替えることを特徴とする請求項３記載の切替制御装置。 When each of the plurality of broadcast material signals has a video field structure,
The control means is configured to synchronize and switch the video field of the digital broadcast signal of the system to be switched with the video field of the digital broadcast signal of the system to be switched at a timing synchronized with the synchronization signal. The switching control device according to claim 3.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1023299A (en) * 1996-07-04 1998-01-23 Nec Eng Ltd Television program production device
JPH1079876A (en) * 1996-09-05 1998-03-24 Nec Eng Ltd Automatic program sending-out system
JP2002290384A (en) * 2001-03-22 2002-10-04 Toshiba Corp Active/standby changeover device for digital broadcast program transmission system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1023299A (en) * 1996-07-04 1998-01-23 Nec Eng Ltd Television program production device
JPH1079876A (en) * 1996-09-05 1998-03-24 Nec Eng Ltd Automatic program sending-out system
JP2002290384A (en) * 2001-03-22 2002-10-04 Toshiba Corp Active/standby changeover device for digital broadcast program transmission system

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