JPS58123236A - Receiver for emergency warning signal - Google Patents
Receiver for emergency warning signalInfo
- Publication number
- JPS58123236A JPS58123236A JP504682A JP504682A JPS58123236A JP S58123236 A JPS58123236 A JP S58123236A JP 504682 A JP504682 A JP 504682A JP 504682 A JP504682 A JP 504682A JP S58123236 A JPS58123236 A JP S58123236A
- Authority
- JP
- Japan
- Prior art keywords
- emergency warning
- warning signal
- signal
- emergency
- broadcast
- 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
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/59—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for emergency or urgency
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Circuits Of Receivers In General (AREA)
- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、緊急警報信号受信機、特に該受信機の音量調
節器が絞られた状態にあっても、放送信号中に重畳され
た緊急警報信号を検出しだときには、必ず一定の音量で
該緊急警報をスピーカから放射することができる緊急警
報信号受信機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an emergency warning signal receiver, especially when an emergency warning signal superimposed on a broadcast signal is detected even when the receiver's volume control is turned down. , relates to an emergency warning signal receiver that can always emit the emergency warning from a speaker at a constant volume.
近年、地震等の緊急事態の発生に備えるため通常の放送
信号を用いた緊急警報放送方式が考えられている。この
緊急警報放送方式は、緊急警報を放送するに先立って、
あるいは該緊急警報の放送中に音声帯域内あるいは音声
帯域外の交流信号等による緊急警報信号を放送信号中に
重畳して送信し、受信機が前記緊急警報信号を検出でき
るようにしたものである。In recent years, in order to prepare for the occurrence of emergency situations such as earthquakes, an emergency warning broadcasting system using normal broadcasting signals has been considered. In this emergency warning broadcasting method, before broadcasting an emergency warning,
Alternatively, during the broadcast of the emergency warning, an emergency warning signal such as an AC signal within the audio band or outside the audio band is superimposed on the broadcast signal and transmitted, so that the receiver can detect the emergency warning signal. .
従来、このような目的のためには、通常の放送聴取用の
ラジオ受信機に緊急警報信号検出部を付加した受信機が
用いられていた。この受信機は、４受信機内の放送受信
部と緊急警報信号検出部に゛常°時電源が供給されてお
り、前述した緊急警報信号が前記緊急警報信号検出部に
より検出されると、放送信号を聴取していない場合にも
、受信機内の音声増幅部に電源が印加され、緊急警報が
聴取できるように構成されているしかしながら、このよ
うな、従来技術による緊急警報信号受信機は、受信機内
の放送受信部と音声増幅部との間に接続されている音量
調節器が絞られた状態にあると、緊急警報信号が放送受
信部で受信され緊急警報信号検出部で検出されても、音
声増幅部に信号が入力されないため、緊急警報を聴取で
きないという欠点があった０
本発明の目的は、前述した従来技術の欠点を除去し、音
量調節器が絞られた状態にあっても必ず一定・の音量で
緊急警報を聴取することができる緊急警報信号受信機を
提供するにある。Conventionally, for this purpose, a receiver has been used in which an emergency warning signal detection section is added to a radio receiver for normal broadcast listening. In this receiver, power is always supplied to the broadcast receiving section and the emergency warning signal detecting section in the four receivers, and when the above-mentioned emergency warning signal is detected by the emergency warning signal detecting section, the broadcast signal is Even when the receiver is not listening to the emergency alert signal, power is applied to the audio amplifying section in the receiver so that the emergency alert can be heard. If the volume controller connected between the broadcast receiver and the audio amplification unit is turned down, even if the emergency warning signal is received by the broadcast receiver and detected by the emergency warning signal detector, the audio will not be heard. Since no signal is input to the amplification section, there is a drawback that emergency warnings cannot be heard.The purpose of the present invention is to eliminate the drawbacks of the prior art described above, and to ensure that the volume remains constant even when the volume control is turned down. - To provide an emergency alert signal receiver that can listen to emergency alerts at a volume of .
この目的を達成するため、本発明は、放送受信部と音声
増幅部との間に接続されている音量調節器の地気側端子
と地気間に抵抗を挿入し、紋抵抗の両端に接続したスイ
ッチを緊急警報信号の有無に応じて、オフまたはオンに
制御するようにした点を特徴とす□る′：。In order to achieve this object, the present invention inserts a resistor between the earth side terminal of the volume controller connected between the broadcast receiving section and the audio amplifying section and the earth side terminal, and connects it to both ends of the resistor. The feature is that the switch is turned off or on depending on the presence or absence of an emergency warning signal.
以下、本発明による緊急警報信号受信機の一実施例を図
面について説明する。Hereinafter, one embodiment of the emergency warning signal receiver according to the present invention will be described with reference to the drawings.
一実施例のブロック図であり、図において、１はアンテ
ナ、２は放送受信部、３は音声増幅部４は緊急警報信号
検出部、５はスピーカ、６は音量調節器、７は抵抗、８
及び９はスイッチ、１０及び１１は電源切換スイッチ、
１２は補助電源、１３は主電源端子である。It is a block diagram of one embodiment, and in the figure, 1 is an antenna, 2 is a broadcast receiving section, 3 is an audio amplification section, 4 is an emergency warning signal detection section, 5 is a speaker, 6 is a volume controller, 7 is a resistor, 8
and 9 are switches, 10 and 11 are power selector switches,
12 is an auxiliary power supply, and 13 is a main power supply terminal.
第１図に示す本発明の一実施例による緊急警報受信機は
、放送受信部２の出方が緊急警報信号検出部４及び音量
調節器６の一端に接続され、該音量調節器６の中点が音
声増幅部３に接続され、さらに該音量調節器６の他端す
なわち接地側端子が抵抗７とスイッチ８の並列回路を経
て地気に接続されて構成されている。In the emergency warning receiver according to the embodiment of the present invention shown in FIG. The other end of the volume controller 6, that is, the ground terminal, is connected to the earth via a parallel circuit of a resistor 7 and a switch 8.
この緊急警報受信機において、通常の放送を受信中、連
動する電源切換スイッチ１ｏ及び１１は図示の位置すな
やち囚の位置にあり、主電源端子１３からの図糸しない
主電源が放送受信部２ ；緊急警報信号検出部４及び音
声増幅部３に電力を供給している。放送信号が緊急警報
でない場合、緊急警報信号横部のリレーＡ及びＢは動作
せず、これらのリレーＡ及びＢに制御される接点９及び
８は、夫々、オフ及びオンとされている。放送聴取者は
、この状態で、音量調節器６を図示ａまたはｂの方向に
適宜調節してスピーカ５より好みの音量で放送を聴取す
ることができる。このとき、音量調節器６を図示ａの方
向に絞ると前述したように該音量調節器６の地気１１１
端子が接点８を介して接地されているので、放送受信部
２からの信号は音声増幅器３に入力されなくなる。In this emergency warning receiver, while receiving a normal broadcast, the interlocking power selector switches 1o and 11 are in the position shown in the figure, that is, the closed position, and the main power supply from the main power terminal 13 is not connected to the broadcast. Part 2; supplies power to the emergency warning signal detection part 4 and the audio amplification part 3. When the broadcast signal is not an emergency warning, relays A and B on the sides of the emergency warning signal do not operate, and contacts 9 and 8 controlled by these relays A and B are turned off and on, respectively. In this state, the broadcast listener can listen to the broadcast at the desired volume through the speaker 5 by appropriately adjusting the volume adjuster 6 in the direction of a or b in the figure. At this time, when the volume controller 6 is turned down in the direction a shown in the figure, as described above, the volume controller 6 is
Since the terminal is grounded via the contact 8, the signal from the broadcast receiving section 2 is no longer input to the audio amplifier 3.
音量調節器６が前述したように絞られた状態にある場合
、または、電源切換スイッチ１０．１１が「切」の位置
にあって放送受信部２及び緊急警報信号検出部のみが乾
電池等の補助電源１２から電力の供給を受けている状態
にある場合に、緊急警報放送が行なわれると、緊急警報
信号検出部４は、放送受信部２の出力信号中に含まれる
緊急警報放送信号中に重畳された緊急警報信号を識別検
出して、リレーＡ及びＢを駆動する。When the volume controller 6 is in the narrowed state as described above, or when the power selector switch 10.11 is in the "off" position, only the broadcast receiving section 2 and the emergency warning signal detecting section are powered by batteries, etc. When an emergency warning broadcast is performed while receiving power from the power source 12, the emergency warning signal detection section 4 detects a signal superimposed on the emergency warning broadcast signal included in the output signal of the broadcast receiving section 2. The relay A and B are activated by identifying and detecting the emergency alarm signal that has been received.
リレーＡにより制御されるスイッチ９は、これによジオ
ンとされ、音声増幅部３に主電源からの電力が供給され
ていない場合に補助電源１２から電力を供給する、また
、リレーＢにより制御されるスイッチ８はオフとされ、
音量調節器６の地気側端子は抵抗７を介して接地される
ようになる。このため、放送受信部２の出力である緊急
警報は、音量調節器６が絞られた状態であっても、音量
調節器６の全抵抗値Ｒ＋と抵抗７の抵抗値Ｒ２とにより
分圧されて音声増幅器乙に入力され、一定の音量でスピ
ーカ５より放射される。従って、聴取者は、緊急警報信
号受信機がどのような状態になっていても、緊急警報が
発せられたときには、それを聴取することができる０
以上説明したように、本発明によれば、音量調節器が絞
られた状態にあっても、必ず緊急警報を聴取できる緊急
警報信号受信機を提供することができる。The switch 9 controlled by the relay A is thereby turned on and supplies power from the auxiliary power source 12 when the audio amplifying section 3 is not supplied with power from the main power source, and is also controlled by the relay B. switch 8 is turned off,
The earth side terminal of the volume controller 6 is grounded via a resistor 7. Therefore, even if the volume controller 6 is turned down, the emergency warning output from the broadcast receiver 2 is divided by the total resistance value R+ of the volume controller 6 and the resistance value R2 of the resistor 7. The signal is input to the audio amplifier B, and is emitted from the speaker 5 at a constant volume. Therefore, the listener can hear the emergency alert when it is issued, no matter what state the emergency alert signal receiver is in. As explained above, according to the present invention, To provide an emergency warning signal receiver that can always hear an emergency warning even when a volume controller is turned down.
図面は本発明による緊急警報信号受信機の一実施例を示
すブロック図である。
１・・・アンテナ ２・・・放送受信部３・・・
音声増幅部 ４・・・緊急警報信号検出部５・・・ス
ピーカ ６・・・′音量調節器７・・・抵抗 、
８，９・・・スイッチ１０、１１・・・電源
切換スイッチThe drawing is a block diagram showing an embodiment of an emergency warning signal receiver according to the present invention. 1... Antenna 2... Broadcast receiving section 3...
Audio amplification section 4...Emergency warning signal detection section 5...Speaker 6...'Volume adjuster 7...Resistor,
8, 9...Switches 10, 11...Power selection switch
Claims (1)
増幅部と、該放送受信部に接続され放送信号中に重畳さ
れた緊急警報信号を検出する緊急警報信号検出部とから
成る緊急警報信号受信機において、前記放送受信部の出
力に一端が接続され、中点が前記音声増幅部に接続され
さらに他端が抵抗を介して地気に接続された音量調節器
と、前記抵抗の両端に接続され、前記緊急警報信号検出
部内のリレーにより開閉されるスイッチとを設けること
により、前記音量調節器が絞られた状態にあっても、緊
急警報信号を必ず聞くことができるようにしたことを特
徴とする緊急警報信号受信機。An emergency alert consisting of a broadcast receiving section, an audio amplifying section that amplifies the signal from the broadcast receiving section, and an emergency warning signal detection section that is connected to the broadcast receiving section and detects an emergency warning signal superimposed on the broadcast signal. The signal receiver includes a volume controller having one end connected to the output of the broadcast receiving section, a midpoint connected to the audio amplification section, and another end connected to the earth via a resistor, and both ends of the resistor. By providing a switch connected to the emergency alarm signal detecting section and opened and closed by a relay in the emergency alarm signal detection section, the emergency alarm signal can always be heard even when the volume controller is in a turned down state. An emergency alert signal receiver featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP504682A JPS58123236A (en) | 1982-01-18 | 1982-01-18 | Receiver for emergency warning signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP504682A JPS58123236A (en) | 1982-01-18 | 1982-01-18 | Receiver for emergency warning signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58123236A true JPS58123236A (en) | 1983-07-22 |
Family
ID=11600470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP504682A Pending JPS58123236A (en) | 1982-01-18 | 1982-01-18 | Receiver for emergency warning signal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58123236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6065399A (en) * | 1983-09-20 | 1985-04-15 | 三洋電機株式会社 | Warning tone generator |
| US4686707A (en) * | 1984-05-29 | 1987-08-11 | Pioneer Electronic Corporation | Program identifier signal receiver |
-
1982
- 1982-01-18 JP JP504682A patent/JPS58123236A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6065399A (en) * | 1983-09-20 | 1985-04-15 | 三洋電機株式会社 | Warning tone generator |
| US4686707A (en) * | 1984-05-29 | 1987-08-11 | Pioneer Electronic Corporation | Program identifier signal receiver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1253400A (en) | Remote control system for operation over same audio channel providing voice signals between remote station and base station | |
| US3999132A (en) | Stereo inhibit circuit | |
| JPS58123236A (en) | Receiver for emergency warning signal | |
| JPS6123879Y2 (en) | ||
| JPS6320194Y2 (en) | ||
| JPS593632Y2 (en) | receiving device | |
| JPS62132440A (en) | Emergency alarm broadcast receiver for vehicle | |
| JPS58186237A (en) | Speaker sound volume controlling system of radio system | |
| JPS62125716A (en) | On-vehicle emergency alarm broadcast receiver | |
| JPH07193517A (en) | Individual receiver | |
| JPS6286925A (en) | Emergency alarm broadcast receiving set | |
| JPS58131825A (en) | Signal reproducer | |
| JPS58172029A (en) | Receiver for emergency warning broadcast | |
| JPS5832362Y2 (en) | FM broadcast playback device | |
| US3153197A (en) | Automatic control and alerting system | |
| JPS6114207Y2 (en) | ||
| JPH0731635Y2 (en) | Incoming call notification mechanism | |
| JPS62132441A (en) | Emergency alarm broadcast transmission and reception equipment for vehicle | |
| JPS56110317A (en) | Sound volume controller | |
| JPS633238Y2 (en) | ||
| JPH04270517A (en) | On-vehicle receiver | |
| JPS55102739A (en) | Car alarm system | |
| JPS6134700B2 (en) | ||
| JPH02134029A (en) | Sound volume adjusting device | |
| JPH01162024A (en) | Selective calling method for moving radio system |