JPS58139750U - Operation confirmation device for communal viewing equipment equipped with uninterruptible power source supply equipment - Google Patents
Operation confirmation device for communal viewing equipment equipped with uninterruptible power source supply equipmentInfo
- Publication number
- JPS58139750U JPS58139750U JP1982037276U JP3727682U JPS58139750U JP S58139750 U JPS58139750 U JP S58139750U JP 1982037276 U JP1982037276 U JP 1982037276U JP 3727682 U JP3727682 U JP 3727682U JP S58139750 U JPS58139750 U JP S58139750U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- output
- circuit
- power source
- source supply
- 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
Landscapes
- Details Of Television Systems (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は一般に用いられている共同聴視装置のブロック
図、第２図は第１図の共同聴視装置に使用する無停電々
源供給装置のブロック図、第３図はこの考案による確認
装置のブロック図、第４図、 は同装置の各部の出力波
形図である。
３．４・・・同軸ケーブル、５・・・無停電々源供給装
置、２８・・・抽出回路、３８．８６−指示装置、４６
・・・微分回路、５８・・・整流平滑回路。Figure 1 is a block diagram of a commonly used communal viewing device, Figure 2 is a block diagram of an uninterruptible power source supply device used in the communal viewing device shown in Figure 1, and Figure 3 is a confirmation of this invention. The block diagram of the device, FIG. 4, is a diagram of output waveforms of each part of the device. 3.4... Coaxial cable, 5... Uninterruptible power source supply device, 28... Extracting circuit, 38.86-Instruction device, 46
...Differentiating circuit, 58... Rectifying and smoothing circuit.
Claims (1)
変圧した交流電圧を発生し、上記商用交流電圧が供給さ
れていないとき直流電圧を矩形波電圧に変化したものを
発生する無停電供給装置を有し、信号伝送同軸ケーブル
に重畳した上記交流電圧または矩形波電圧によって駆動
される増幅器・を上記信号伝送同軸ケーブルに介在させ
た共同聴視装置において、上記信号伝送同軸ケーブルか
ら上記交流電圧または矩形波電圧を抽出する回路と、こ
の抽出回路の出力が交流電圧のとき出力がほぼＯであり
上記抽出回路の出力が矩形波電圧のとき出力として正負
の交番パルス電圧を発生するよう時定数を選択した微分
回路と、この微分回路の出力を整流する回路と、この回
路の出力に応動して作動する指示装置とからなる無停電
々源供給装置を具備する共同聴視装置の動作確認装置。An uninterruptible supply device that generates an AC voltage obtained by transforming the commercial AC voltage when the commercial AC voltage is supplied, and generates a DC voltage changed to a rectangular wave voltage when the commercial AC voltage is not supplied. In a communal viewing device in which the signal transmission coaxial cable is interposed with an amplifier driven by the alternating current voltage or rectangular wave voltage superimposed on the signal transmission coaxial cable, A circuit for extracting a wave voltage, and a time constant selected so that when the output of this extraction circuit is an alternating voltage, the output is approximately O, and when the output of the extraction circuit is a rectangular wave voltage, a positive and negative alternating pulse voltage is generated as an output. 1. An operation confirmation device for a communal viewing device, which is equipped with an uninterruptible intermittent power source supply device comprising a differentiating circuit, a circuit for rectifying the output of the differentiating circuit, and an indicating device that operates in response to the output of the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982037276U JPS58139750U (en) | 1982-03-17 | 1982-03-17 | Operation confirmation device for communal viewing equipment equipped with uninterruptible power source supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982037276U JPS58139750U (en) | 1982-03-17 | 1982-03-17 | Operation confirmation device for communal viewing equipment equipped with uninterruptible power source supply equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58139750U true JPS58139750U (en) | 1983-09-20 |
| JPS6238358Y2 JPS6238358Y2 (en) | 1987-09-30 |
Family
ID=30048669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982037276U Granted JPS58139750U (en) | 1982-03-17 | 1982-03-17 | Operation confirmation device for communal viewing equipment equipped with uninterruptible power source supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58139750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61198987A (en) * | 1985-02-28 | 1986-09-03 | Nec Corp | Uniterruptive power supply of catv transmission line system |
-
1982
- 1982-03-17 JP JP1982037276U patent/JPS58139750U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61198987A (en) * | 1985-02-28 | 1986-09-03 | Nec Corp | Uniterruptive power supply of catv transmission line system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6238358Y2 (en) | 1987-09-30 |
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