JPS6250836B2 - - Google Patents
Info
- Publication number
- JPS6250836B2 JPS6250836B2 JP4266280A JP4266280A JPS6250836B2 JP S6250836 B2 JPS6250836 B2 JP S6250836B2 JP 4266280 A JP4266280 A JP 4266280A JP 4266280 A JP4266280 A JP 4266280A JP S6250836 B2 JPS6250836 B2 JP S6250836B2
- Authority
- JP
- Japan
- Prior art keywords
- siren
- sound
- siren sound
- output
- control
- 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.)
- Expired
Links
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 230000002238 attenuated effect Effects 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4266280A JPS56138796A (en) | 1980-03-31 | 1980-03-31 | Siren sound control device for electronic siren |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4266280A JPS56138796A (en) | 1980-03-31 | 1980-03-31 | Siren sound control device for electronic siren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56138796A JPS56138796A (en) | 1981-10-29 |
| JPS6250836B2 true JPS6250836B2 (enExample) | 1987-10-27 |
Family
ID=12642216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4266280A Granted JPS56138796A (en) | 1980-03-31 | 1980-03-31 | Siren sound control device for electronic siren |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56138796A (enExample) |
-
1980
- 1980-03-31 JP JP4266280A patent/JPS56138796A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56138796A (en) | 1981-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4237448A (en) | Pager with escalating audio alert signal level | |
| CA1119024A (en) | Chime tone audio system utilizing a piezoelectric transducer | |
| CA2105070A1 (en) | Method and apparatus for adjusting vehicle horns | |
| JPS54152846A (en) | Pulse duration modulating signal amplifier circuit | |
| EP1296450A3 (en) | Amplifier with limiter | |
| US4166358A (en) | Solid state alarm for clock-radio | |
| JPS6250836B2 (enExample) | ||
| US4389638A (en) | I.C. Alarm signal generator | |
| JPH08213849A (ja) | 音声ミュート回路 | |
| JPH06338746A (ja) | オーディオ機器のagc回路 | |
| US3517261A (en) | Flasher circuit | |
| US3324408A (en) | Electronic siren including a shock excited resonant circuit | |
| JPH042495Y2 (enExample) | ||
| US3550117A (en) | Timing apparatus | |
| JPS58187916A (ja) | 超音波測距装置 | |
| JPS6329293Y2 (enExample) | ||
| JP2863362B2 (ja) | 時差式音域調整装置 | |
| GB2084368A (en) | Sound-operated Switching Circuit | |
| JPS5918722Y2 (ja) | 音量等の調整回路 | |
| JPH0477318B2 (enExample) | ||
| JPH0417562B2 (enExample) | ||
| JPS63217809A (ja) | 自動利得制御回路 | |
| JPH06314942A (ja) | 音声信号自動振幅制御装置 | |
| JPH06216684A (ja) | 電子ボリューム装置 | |
| KR900000558Y1 (ko) | 음량 제어 회로 |