JPH04326265A - Special effect device - Google Patents
Special effect deviceInfo
- Publication number
- JPH04326265A JPH04326265A JP3095661A JP9566191A JPH04326265A JP H04326265 A JPH04326265 A JP H04326265A JP 3095661 A JP3095661 A JP 3095661A JP 9566191 A JP9566191 A JP 9566191A JP H04326265 A JPH04326265 A JP H04326265A
- Authority
- JP
- Japan
- Prior art keywords
- aspect ratio
- signal
- supplied
- signals
- video
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 238000003786 synthesis reaction Methods 0.000 claims description 14
- 230000001131 transforming effect Effects 0.000 abstract 2
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Studio Circuits (AREA)
- Television Systems (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、いわゆるＥＤＴＶの映
像信号の処理を行う特殊効果装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a special effects device for processing so-called EDTV video signals.
【０００２】0002
【従来の技術】例えば現行のテレビジョン標準方式と両
立性を有して、画面のアスペクト比を１６：９にワイド
化したＥＤＴＶが検討されている。このようなＥＤＴＶ
においては、同期信号が現行のテレビジョン標準方式と
同一であることから、画面の切替えや合成等を行うため
の特殊効果装置には現行のものをそのまま使用すること
ができる。2. Description of the Related Art For example, an EDTV that is compatible with current television standards and has a wide screen aspect ratio of 16:9 is being considered. EDTV like this
Since the synchronizing signal is the same as the current television standard system, the current special effects device for switching and compositing screens can be used as is.
【０００３】すなわち図３は現行の特殊効果装置を示し
ており、３１１ 〜３１ｎ は映像信号の入力端子であ
る。
これらの入力端子３１１ 〜３１ｎ からの映像信号が
マトリクス形のスイッチ回路３２に供給され、選択され
た信号がバスＡ３３１ 及びバスＢ３３２ に取り出さ
れる。これらのバスＡ３３１ 及びバスＢ３３２ に取
り出された信号が合成回路３４に供給され、ワイプ、フ
ェード等の合成が行われる。この合成された信号が出力
端子３５に取り出される。That is, FIG. 3 shows a current special effects device, and 311 to 31n are input terminals for video signals. Video signals from these input terminals 311 to 31n are supplied to a matrix type switch circuit 32, and selected signals are taken out to buses A331 and B332. The signals taken out to these buses A331 and B332 are supplied to the combining circuit 34, where they are subjected to combining such as wipe and fade. This combined signal is taken out to the output terminal 35.
【０００４】ところがこの装置において、入力端子３１
１ 〜３１ｎ に供給される映像信号が全て同じアスペ
クト比であれば問題ない。しかし例えばアスペクト比が
１６：９のＥＤＴＶと、４：３の現行のテレビジョン信
号が同時に供給された場合には、例えば図４のＡに示す
ようなアスペクト比１６：９の映像信号と、同図のＢに
示すようなアスペクト比４：３の映像信号を合成すると
、同図のＣに示すようにアスペクト比４：３の映像信号
が横長に引き伸ばされてしまい、良好な合成を行うこと
ができないものであった。However, in this device, the input terminal 31
There is no problem if the video signals supplied to 1 to 31n all have the same aspect ratio. However, if, for example, an EDTV with an aspect ratio of 16:9 and a current television signal with an aspect ratio of 4:3 are supplied at the same time, the video signal with an aspect ratio of 16:9 as shown in A in FIG. When combining video signals with an aspect ratio of 4:3 as shown in B in the figure, the video signals with an aspect ratio of 4:3 are stretched horizontally as shown in C in the figure, making it difficult to perform a good combination. It was impossible.
【０００５】なおこのようにアスペクト比の異なる映像
信号が供給される可能性としては、移行期において新旧
の機器が混在している場合や、古いプログラムソースを
利用したい場合などが考えられ、比較的多く発生するこ
とが考えられるものである。[0005] The possibility that video signals with different aspect ratios may be supplied in this way is considered to be when old and new equipment is mixed during the transition period, or when it is desired to use an old program source, and it is relatively rare. This is likely to occur frequently.
【０００６】これに対して、供給される映像信号を変換
装置等を用いて、予め１つのアスペクト比に統一してお
くことも考えられるが、放送局のように巨大なビデオネ
ットワークが構成されている場合には、一々事前に管理
を行うことは困難である。[0006] On the other hand, it is conceivable to unify the supplied video signals to one aspect ratio in advance using a converter or the like, but this would be useful if a huge video network such as a broadcasting station is configured. If there are many, it is difficult to manage them in advance.
【０００７】[0007]
【発明が解決しようとする課題】解決しようとする問題
点は、従来の装置ではアスペクト比の異なる映像信号が
供給された場合に、映像信号に歪みが発生し良好な合成
を行うことができないというものである。[Problem to be Solved by the Invention] The problem to be solved is that when video signals with different aspect ratios are supplied to conventional devices, distortion occurs in the video signals and it is not possible to perform good synthesis. It is something.
【０００８】[0008]
【課題を解決するための手段】本発明は、第１のアスペ
クト比（４：３）の第１の信号と、第２のアスペクト比
（１６：９）の第２の信号とが供給（入力端子１１ 〜
１ｎ ）され、少なくとも上記の一方のアスペクト比の
信号を判別する手段（回路６１ 、６２ ）が設けられ
ると共に、上記第１の信号の第１のアスペクト比を上記
第２のアスペクト比に変換する手段（回路５１ 、５２
）が設けられ、上記第１のアスペクト比の第１の信号
が供給されたときには、上記変換手段を経由した信号が
合成回路６に入力されるようにした特殊効果装置である
。[Means for Solving the Problems] The present invention provides a first signal having a first aspect ratio (4:3) and a second signal having a second aspect ratio (16:9). Terminal 11 ~
1n), and is provided with means (circuits 61, 62) for determining a signal having at least one of the aspect ratios, and means for converting the first aspect ratio of the first signal into the second aspect ratio. (Circuit 51, 52
), and when the first signal having the first aspect ratio is supplied, the signal that has passed through the conversion means is input to the synthesis circuit 6.
【０００９】[0009]
【作用】これによれば、第１のアスペクト比の信号が供
給されたときには第２のアスペクト比に変換されて合成
回路に供給されるので、合成回路には常に第２のアスペ
クト比の信号が供給され、歪みのない良好な合成を行う
ことができる。[Operation] According to this, when a signal of the first aspect ratio is supplied, it is converted to the second aspect ratio and supplied to the synthesis circuit, so that the signal of the second aspect ratio is always supplied to the synthesis circuit. It is possible to perform good synthesis without distortion.
【００１０】0010
【実施例】図１において、１１ 〜１ｎ は映像信号の
入力端子である。これらの入力端子１１ 〜１ｎ から
の映像信号がマトリクス形のスイッチ回路２に供給され
、選択された信号がバスＡ３１ 及びバスＢ３２ に取
り出される。
これらのバスＡ３１ 及びバスＢ３２ に取り出された
信号が切換スイッチ４１、４２ の一方の固定接点に供
給される。Embodiment In FIG. 1, 11 to 1n are input terminals for video signals. Video signals from these input terminals 11 to 1n are supplied to a matrix type switch circuit 2, and selected signals are taken out to buses A31 and B32. The signals taken out to these buses A31 and B32 are supplied to one fixed contact of the changeover switches 41 and 42.
【００１１】またこれらのバスＡ３１ 及びバスＢ３２
に取り出された信号が映像信号のアスペクト比を変換
する変換回路５１ 、５２ に供給され、例えばアスペ
クト比４：３の信号がアスペクト比１６：９に変換され
る。これらの変換回路５１ 、５２ で変換された信号
が切換スイッチ４１ 、４２ の他方の固定接点に供給
される。[0011] Also, these buses A31 and B32
The signals extracted are supplied to conversion circuits 51 and 52 that convert the aspect ratio of the video signal, and for example, a signal with an aspect ratio of 4:3 is converted into an aspect ratio of 16:9. The signals converted by these conversion circuits 51 , 52 are supplied to the other fixed contacts of the changeover switches 41 , 42 .
【００１２】さらにバスＡ３１ 及びバスＢ３２ に取
り出された信号が映像信号のアスペクト比の判別回路６
１ 、６２ に供給され、例えばこの映像信号のアスペ
クト比が１６：９でなかったときに、切換スイッチ４１
、４２ が他方の固定接点側に切り換えられる。この
切換スイッチ４１ 、４２ からの信号が合成回路７に
供給され、ワイプ、フェード等の合成が行われる。この
合成された信号が出力端子８に取り出される。Further, the signals taken out to the bus A31 and the bus B32 are sent to a video signal aspect ratio determining circuit 6.
For example, when the aspect ratio of this video signal is not 16:9, the changeover switch 41
, 42 are switched to the other fixed contact side. Signals from the changeover switches 41 and 42 are supplied to the synthesis circuit 7, and synthesis such as wipe and fade is performed. This combined signal is taken out to the output terminal 8.
【００１３】従ってこの装置において、例えば入力端子
１１ にアスペクト比１６：９のＥＤＴＶが供給され、
入力端子１２ にアスペクト比４：３の現行のテレビジ
ョン信号が供給され、例えばスイッチ回路２で入力端子
１１ がバスＡ３１ に選択され、入力端子１２ がバ
スＢ３２ に選択されると、この内の４：３の現行のテ
レビジョン信号が供給される入力端子１２ の選択され
たバスＢ３２ に接続された判別回路６２ でこの映像
信号のアスペクト比が１６：９でないことが判別され、
このバスＢ３２ に接続された切換スイッチ４２ が図
とは逆に切り換えられる。これによって切換スイッチ４
２ からは、入力端子１２ に供給されるアスペクト比
４：３の現行のテレビジョン信号が変換回路５２ でア
スペクト比１６：９に変換された信号が取り出され、こ
の変換されたアスペクト比１６：９の信号と、入力端子
１１ に供給されるアスペクト比１６：９のＥＤＴＶの
信号が合成回路７に供給される。Therefore, in this device, for example, an EDTV with an aspect ratio of 16:9 is supplied to the input terminal 11,
If a current television signal with an aspect ratio of 4:3 is supplied to the input terminal 12 and, for example, the switch circuit 2 selects the input terminal 11 as the bus A31 and the input terminal 12 as the bus B32, then 4 of these The determination circuit 62 connected to the selected bus B32 of the input terminal 12 to which the current television signal of 3:3 is supplied determines that the aspect ratio of this video signal is not 16:9,
A changeover switch 42 connected to this bus B32 is switched in the opposite direction to that shown in the figure. As a result, the changeover switch 4
2, a current television signal with an aspect ratio of 4:3 supplied to the input terminal 12 is converted into a signal with an aspect ratio of 16:9 by a conversion circuit 52, and a signal with an aspect ratio of 16:9 is taken out. The signal and the EDTV signal with an aspect ratio of 16:9 supplied to the input terminal 11 are supplied to the combining circuit 7.
【００１４】すなわちこの装置において、例えば図２の
Ａに示すようなアスペクト比１６：９の映像信号と、同
図のＢ１ に示すようなアスペクト比４：３の映像信号
が供給されると、この内のアスペクト比４：３の映像信
号が同図のＢ２ に示すようなアスペクト比１６：９の
映像信号に変換される。そしてこれらの映像信号が合成
されることによって、同図のＣに示すように良好な合成
を行うことができる。That is, when this device is supplied with a video signal with an aspect ratio of 16:9 as shown in A in FIG. 2, and a video signal with an aspect ratio of 4:3 as shown in B1 in the same figure, the A video signal with an aspect ratio of 4:3 is converted into a video signal with an aspect ratio of 16:9 as shown in B2 of the figure. By combining these video signals, a good combination can be achieved as shown in C in the figure.
【００１５】こうして上述の装置によれば、第１のアス
ペクト比（４：３）の信号が供給されたときには第２の
アスペクト比（１６：９）に変換（回路５１、５２ ）
されて合成回路７に供給されるので、合成回路７には常
に第２のアスペクト比（１６：９）の信号が供給され、
歪みのない良好な合成を行うことができるものである。Thus, according to the above-mentioned device, when a signal of the first aspect ratio (4:3) is supplied, it is converted to the second aspect ratio (16:9) (circuits 51, 52).
Since the second aspect ratio (16:9) signal is always supplied to the combining circuit 7,
This allows good synthesis without distortion.
【００１６】なお上述の装置において、映像信号のアス
ペクト比の判別は、例えばアスペクト比１６：９の映像
信号の中にＩＤ信号を設けて、判別回路６１、６２ に
てこのＩＤ信号の有無を判別するようにすればよい。In the above-mentioned apparatus, the aspect ratio of the video signal is determined by providing an ID signal in the video signal with an aspect ratio of 16:9, for example, and determining the presence or absence of this ID signal by the determination circuits 61 and 62. Just do it.
【００１７】また上述の装置は、合成によってアスペク
ト比４：３の映像信号を取り出す場合に、アスペクト比
１６：９の映像信号をアスペクト比４：３に変換するよ
うにしてもよい。[0017] Furthermore, in the above-mentioned apparatus, when a video signal with an aspect ratio of 4:3 is extracted by synthesis, the video signal with an aspect ratio of 16:9 may be converted to a video signal with an aspect ratio of 4:3.
【００１８】[0018]
【発明の効果】この発明によれば、第１のアスペクト比
の信号が供給されたときには第２のアスペクト比に変換
されて合成回路に供給されるので、合成回路には常に第
２のアスペクト比の信号が供給され、歪みのない良好な
合成を行うことができるようになった。According to the present invention, when a signal with the first aspect ratio is supplied, it is converted to the second aspect ratio and supplied to the synthesis circuit, so that the synthesis circuit always has the second aspect ratio. signal is supplied, making it possible to perform good synthesis without distortion.
【図１】本発明による特殊効果装置の一例の構成図であ
る。FIG. 1 is a configuration diagram of an example of a special effects device according to the present invention.
【図２】その説明のための図である。FIG. 2 is a diagram for explaining the same.
【図３】従来の装置の構成図である。FIG. 3 is a configuration diagram of a conventional device.
【図４】その説明のための図である。FIG. 4 is a diagram for explaining the same.
【符号の説明】
１１ 〜１ｎ 映像信号の入力端子２ マトリク
ス形のスイッチ回路
３１ バスＡ
３２ バスＢ
４１ 、４２ 切換スイッチ
５１ 、５２ 映像信号のアスペクト比の変換回路
６１ 、６２ 映像信号のアスペクト比の判別回路
７ 合成回路
８ 出力端子[Description of symbols] 11 to 1n Video signal input terminals 2 Matrix type switch circuit 31 Bus A 32 Bus B 41, 42 Changeover switches 51, 52 Video signal aspect ratio conversion circuits 61, 62 Video signal aspect ratio conversion circuits Discrimination circuit 7 Synthesis circuit 8 Output terminal
Claims (1)
第２のアスペクト比の第２の信号とが供給され、少なく
とも上記の一方のアスペクト比の信号を判別する手段が
設けられると共に、上記第１の信号の第１のアスペクト
比を上記第２のアスペクト比に変換する手段が設けられ
、上記第１のアスペクト比の第１の信号が供給されたと
きには、上記変換手段を経由した信号が合成回路に入力
されるようにした特殊効果装置。Claim 1: A first signal having a first aspect ratio;
a second signal having a second aspect ratio; means for determining at least one of the signals having one aspect ratio; and a first aspect ratio of the first signal; A special effect device is provided with means for converting into a ratio, and when the first signal having the first aspect ratio is supplied, the signal that has passed through the converting means is input to a synthesis circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3095661A JP3006137B2 (en) | 1991-04-25 | 1991-04-25 | Special effects device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3095661A JP3006137B2 (en) | 1991-04-25 | 1991-04-25 | Special effects device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04326265A true JPH04326265A (en) | 1992-11-16 |
| JP3006137B2 JP3006137B2 (en) | 2000-02-07 |
Family
ID=14143680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3095661A Expired - Fee Related JP3006137B2 (en) | 1991-04-25 | 1991-04-25 | Special effects device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3006137B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444492A (en) * | 1992-03-06 | 1995-08-22 | Sony Corporation | Processing circuit for video signals of two different aspect ratios |
| US7034886B2 (en) * | 2000-01-28 | 2006-04-25 | Ross Video Limited | Video production switcher with integrated aspect ratio converter |
-
1991
- 1991-04-25 JP JP3095661A patent/JP3006137B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444492A (en) * | 1992-03-06 | 1995-08-22 | Sony Corporation | Processing circuit for video signals of two different aspect ratios |
| US7034886B2 (en) * | 2000-01-28 | 2006-04-25 | Ross Video Limited | Video production switcher with integrated aspect ratio converter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3006137B2 (en) | 2000-02-07 |
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