JPS5893997U - sound generator - Google Patents
sound generatorInfo
- Publication number
- JPS5893997U JPS5893997U JP18789581U JP18789581U JPS5893997U JP S5893997 U JPS5893997 U JP S5893997U JP 18789581 U JP18789581 U JP 18789581U JP 18789581 U JP18789581 U JP 18789581U JP S5893997 U JPS5893997 U JP S5893997U
- Authority
- JP
- Japan
- Prior art keywords
- output
- section
- circuit
- input section
- generating device
- 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
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図は従来のものの一例を示すブロック図、第２図は
第１図のものの各部のタイミングチャート、第３図はこ
の考案の一実施例を示すブロック図、第４図は第３図の
ものの各部の出力波形区、第５図は第３図のものの各部
のタイミングチャートである。
１：サイレンスイッチ、２：サイレン発振器、３．２１
：サイレン音の発生部、４．’ｉｌ：パワアンブ、５：
後方スピーカ、６，１３：出力部、７：マイクロホン、
８ニブレストークスイツチ、９：マイクアンプ、１０：
マ、イク音声の入力部、１２：前方スピーカ、１４：ス
イッチ、２２：電圧制御回路、２３：ＶＣＯ（電圧制御
発振器）、２４：振幅変調回路、２５：比較回路、２６
：制御回路、２７．２８：ＡＮＤ回路、２９：スイッチ
切換器。
−」−一士一□−−−
１酌７月−
１１１１ｔＡ。
、＋ ！１
＝ ” １３ −Fig. 1 is a block diagram showing an example of the conventional one, Fig. 2 is a timing chart of each part of the one in Fig. 1, Fig. 3 is a block diagram showing an embodiment of this invention, and Fig. 4 is the same as in Fig. 3. Output waveform sections of each part of the device, FIG. 5 is a timing chart of each part of the device of FIG. 1: Siren switch, 2: Siren oscillator, 3.21
: Generation part of siren sound, 4. 'il: power anbu, 5:
Rear speaker, 6, 13: Output section, 7: Microphone,
8 nibble talk switch, 9: microphone amplifier, 10:
12: front speaker, 14: switch, 22: voltage control circuit, 23: VCO (voltage controlled oscillator), 24: amplitude modulation circuit, 25: comparison circuit, 26
: Control circuit, 27.28: AND circuit, 29: Switch changer. -''-Ichishiichi□--- 1 cup July- 1111tA. ,+! 1 = ” 13 −
Claims (1)
記発生部および入力部にそれぞれ接続された２系統の出
力部と、前記両出力部を入力側で相互接続するスイッチ
とを具えた音響発生装置において、前記発生部の制御電
圧があらかじめ決められたレベル以上にあるとき出力を
発生する比較回路と、前記発生部の動作中および前記比
較回路の出力発生中に同時に前記入力部が動作している
とき前記スイッチを開放させておく制御回路を設けたこ
とを特徴とする音響発生装置。 ２ 前記制御回路は、前記発生部および前記入力部の出
力側に接続されたＡＮＤ回路と、前記比較回路および前
記入力部の出力側に接続されたＡＮＤ回路とを具え、前
記両ＡＮＤ回路の少なくとも一方が出力を発生している
とき前記スイッチを開放させておくようになっている実
用新案登録請求の範囲第１項記載の音響発生装置。[Claims for Utility Model Registration] 1. A siren sound generation section, a microphone audio input section, two output sections connected to the generation section and the input section, respectively, and a connection between the two output sections on the input side. A sound generating device comprising: a comparison circuit that generates an output when a control voltage of the generating section is above a predetermined level; and a comparison circuit that generates an output when the control voltage of the generating section is above a predetermined level; A sound generating device further comprising a control circuit that opens the switch when the input section is simultaneously operating. 2. The control circuit includes an AND circuit connected to the output side of the generation section and the input section, and an AND circuit connected to the output side of the comparison circuit and the input section, and at least The sound generating device according to claim 1, wherein the switch is kept open when one of the switches is generating an output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18789581U JPS5893997U (en) | 1981-12-18 | 1981-12-18 | sound generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18789581U JPS5893997U (en) | 1981-12-18 | 1981-12-18 | sound generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5893997U true JPS5893997U (en) | 1983-06-25 |
| JPS636800Y2 JPS636800Y2 (en) | 1988-02-26 |
Family
ID=30102813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18789581U Granted JPS5893997U (en) | 1981-12-18 | 1981-12-18 | sound generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5893997U (en) |
-
1981
- 1981-12-18 JP JP18789581U patent/JPS5893997U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS636800Y2 (en) | 1988-02-26 |
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