JPS58159071A - Switcher controlling circuit - Google Patents
Switcher controlling circuitInfo
- Publication number
- JPS58159071A JPS58159071A JP4216282A JP4216282A JPS58159071A JP S58159071 A JPS58159071 A JP S58159071A JP 4216282 A JP4216282 A JP 4216282A JP 4216282 A JP4216282 A JP 4216282A JP S58159071 A JPS58159071 A JP S58159071A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- switcher
- control
- input
- signals
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、テレビスタジオ伝送系に関し、特にスイッチ
ャ−制御回路に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to television studio transmission systems, and more particularly to switcher control circuits.
従来の信号切換装置を第１図に示す。第１図において、
入力端子１０１，１０２〜、ｍから入力信号がスイッチ
ャ１に供給される。ここで、制御回路３からの制御信号
で制御される出力信号は入力端子２０１からの入力信号
と共にスイッチャ２に供給される。ここで制御回ｊ１８
４からの制御信号で制御された出力信号は出力端子５に
供給される。A conventional signal switching device is shown in FIG. In Figure 1,
Input signals are supplied to the switcher 1 from input terminals 101, 102 to m. Here, an output signal controlled by a control signal from the control circuit 3 is supplied to the switcher 2 together with an input signal from the input terminal 201. Here control times j18
The output signal controlled by the control signal from 4 is supplied to output terminal 5.
この時、入力信号１０１，１０２〜２ｍに対して入力信
号２０１をある条件で独立に制御し、出力信号として出
力端子５に供給する為には、制御回路４による制御によ
り行なわれる。At this time, the control circuit 4 controls the input signal 201 independently of the input signals 101, 102 to 2m under certain conditions and supplies it to the output terminal 5 as an output signal.
ここで入力信号２０１がＯＦＦの場合は、制御回路３に
よる制御信号によって入力信号１０１゜１０２、〜ｍが
選択され、入力信号２０１がＯＮになっ、た時でも、そ
れ以前の制御信号を制御回路３で保持している為、再び
入力信号２０１がＯＦＦになった時でも、それ以前にＯ
Ｎとなっていた、入力信号が出力信号として供給される
。この様にある特定の入力信号な残りの複数の入力信号
と独立に制御する為にはスイッチャを縦続接続しなけれ
ばならず、この結果として、入力信号１０１゜１０２、
〜ｍは、スイッチャを２段軽由する為特性の劣化が現わ
れ、また、仮設のスイッチャの入力において入力信号２
０１の位相調整が必要となる。Here, when the input signal 201 is OFF, the input signals 101, 102, ~m are selected by the control signal from the control circuit 3, and even when the input signal 201 is turned ON, the previous control signal is transferred to the control circuit. Since it is held at 3, even when the input signal 201 turns OFF again, it will turn OFF before that.
The input signal, which was N, is supplied as an output signal. In this way, in order to control a particular input signal independently from the remaining input signals, switchers must be connected in cascade, and as a result, the input signals 101, 102,
~ m shows deterioration in characteristics due to the switcher being lightened by two stages, and the input signal 2 at the input of the temporary switcher.
01 phase adjustment is required.
本発明の目的は、複数の入力信号と特定の少数の入力信
号を独立にスイッチャにより制御する時出力信号の特性
の劣化が軽減されかつ、位相調整も必要としないスイッ
チャ制御回路を提供することである。An object of the present invention is to provide a switcher control circuit that reduces deterioration of output signal characteristics when a plurality of input signals and a specific small number of input signals are controlled independently by a switcher, and that does not require phase adjustment. be.
本発明によれは、ある特定の少数の入力信号と残りの複
数の入力信号とを独立にそれぞれ制御する２つの制御回
路と、２つの制御回路からの制御信号を切替える制御信
号切替器を有するスイッチャ制御回路が得られる。これ
により、出力信号の特性劣化を軽減し、入力信号の位相
調整も不用となる。According to the present invention, a switcher includes two control circuits that independently control a certain small number of input signals and a plurality of remaining input signals, and a control signal switcher that switches control signals from the two control circuits. A control circuit is obtained. This reduces characteristic deterioration of the output signal and eliminates the need for phase adjustment of the input signal.
次に本発明の一実施例を示した図面を参照して説明する
。第２図は、本発明の一実施例を示す図であり、第１図
に示した従来例に比べて、２つの制御回路よりの制御信
号を切換える為の制御信号切換器を具備し、これよりの
制御信号によりスイ、チャを制御している。さらに詳し
く述べると。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a diagram showing an embodiment of the present invention, which is equipped with a control signal switching device for switching control signals from two control circuits, compared to the conventional example shown in FIG. The switch and cha are controlled by control signals from the controller. Let me explain in more detail.
複数個の入力信号は入力端子３０１，３０２．〜ｎ）（
供給され、さらに、特定の入力信号は入力端子４０１に
供給される。制御回路７は、入力信号３０１．３０２．
〜．ｎを選択する為の制御回路であり、ここで設定され
た制御信号によりスイッチャ６で選択可能となる。制御
回路８は、入力信号４０１を選択する為の制御回路であ
り、ここで設定された制御信号によりスイッチャ６で選
択される。この２つの制御信号は、制御信号切換器９に
供給される。この切換器において、２つの制御信号のう
ちどちらが選択されるか否かは、入力信号３０１，３０
２．〜ｎと、入力信号４０１のうちどちらを出力信号と
し【選択するか否がで決定される。この制御信号切換器
９の出力制御信号により、スイッチャ６は制御され出力
信号として出力端子１０に供給される。A plurality of input signals are input to input terminals 301, 302 . 〜n)(
In addition, a particular input signal is provided to input terminal 401. The control circuit 7 receives input signals 301, 302 .
~． This is a control circuit for selecting n, and the switcher 6 can select it according to the control signal set here. The control circuit 8 is a control circuit for selecting the input signal 401, and is selected by the switcher 6 according to the control signal set here. These two control signals are supplied to a control signal switch 9. In this switch, which of the two control signals is selected is determined by the input signals 301 and 30.
2. -n and which of the input signals 401 is to be selected as the output signal is determined. The switcher 6 is controlled by the output control signal of the control signal switch 9 and is supplied to the output terminal 10 as an output signal.
ここで、制御回路７に入力信号３０１，３０２゜・・・
ｎの選択情報を設定しておき、制御信号切換器により、
選択し、スイッチャ−６の制御信号とする事により、入
力信号４０１の制御とは独立となる為第１図の従来例と
比べて全く同じ動作が可能となる。これにより、３０１
，３０２．〜．ｎの入力信号は、スイッチャを２段経由
する事なく出力信号となる為、特性の劣化を軽減するこ
とができる。また、以上では、特定の少数の入力信号を
１つとして説明してきたが、これが複数ある場合でも、
同様の回路構成になり、スイッチャの縦続接続を回避出
来ることは明白である。Here, the control circuit 7 receives input signals 301, 302°...
Set the selection information for n, and use the control signal switcher to
By selecting the signal and using it as a control signal for the switcher 6, it becomes independent from the control of the input signal 401, so that the same operation as the conventional example shown in FIG. 1 is possible. This results in 301
, 302. ~． Since the input signal of n becomes an output signal without passing through two stages of the switcher, deterioration of characteristics can be reduced. Also, in the above, we have explained a specific small number of input signals as one, but even if there are multiple input signals,
It is clear that a similar circuit configuration can be obtained and cascade connection of switchers can be avoided.
本発明は、以上説明したように、複数の入力信号と、特
定の少数の入力信号を切換える時の制御信号を、制御信
号切換器を具備する事により、スイッチャを縦列接続す
ることなく、特性の劣化の軽減された出力信号を得る。As explained above, the present invention provides control signals for switching between a plurality of input signals and a small number of specific input signals by providing a control signal switcher, thereby changing the characteristics of the control signal without cascading switchers. To obtain an output signal with reduced degradation.
第１図は、従来のスイッチャ装置の回路図、第２図は、
本発明の実施例を示した図。
図において、１，２．６・・・・・・スイッチャ、３゜
４．７，８・・・・・・制御回路、９・・・・・・制御
信号切換器、１０１．１０２．〜ｍ、２０１，３０１，
３０２〜ｒ１．４０１・・・・・・入力端子、５，１ｏ
・・団・出力端子。FIG. 1 is a circuit diagram of a conventional switcher device, and FIG. 2 is a circuit diagram of a conventional switcher device.
FIG. 1 is a diagram showing an example of the present invention. In the figure, 1, 2.6... switcher, 3° 4.7, 8... control circuit, 9... control signal switcher, 101.102. ~m, 201,301,
302~r1.401...Input terminal, 5,1o
... Group output terminal.
Claims (1)
複数のうち特定の数の入力信号を制御する第一の制御回
路と、残りの入力信号を制御する第二の制御回路と、前
記第−及び第二の制御回路からの制御信号を替える切替
器とを具備し、前記切替器で選択された制御信号でスイ
ッチャ−を制御することを％徴とするスイッチャ−制御
回路。When controlling a switcher with multiple human inputs and one output, a first control circuit that controls a specific number of input signals among the plurality of input signals, a second control circuit that controls the remaining input signals, and a second control circuit that controls the remaining input signals; and a switch for switching the control signal from the second control circuit, the switcher control circuit having the feature of controlling the switcher with the control signal selected by the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4216282A JPS58159071A (en) | 1982-03-17 | 1982-03-17 | Switcher controlling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4216282A JPS58159071A (en) | 1982-03-17 | 1982-03-17 | Switcher controlling circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58159071A true JPS58159071A (en) | 1983-09-21 |
Family
ID=12628255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4216282A Pending JPS58159071A (en) | 1982-03-17 | 1982-03-17 | Switcher controlling circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58159071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63257387A (en) * | 1987-03-27 | 1988-10-25 | ザ・グラス・バレー・グループ・インコーポレイテッド | Image special effect apparatus |
-
1982
- 1982-03-17 JP JP4216282A patent/JPS58159071A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63257387A (en) * | 1987-03-27 | 1988-10-25 | ザ・グラス・バレー・グループ・インコーポレイテッド | Image special effect apparatus |
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