JPS5550746A - Noise reduction unit for automobile audio equipment - Google Patents
Noise reduction unit for automobile audio equipmentInfo
- Publication number
- JPS5550746A JPS5550746A JP12398478A JP12398478A JPS5550746A JP S5550746 A JPS5550746 A JP S5550746A JP 12398478 A JP12398478 A JP 12398478A JP 12398478 A JP12398478 A JP 12398478A JP S5550746 A JPS5550746 A JP S5550746A
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- noise
- audio
- electric field
- 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
- 238000001514 detection method Methods 0.000 abstract 4
- 230000005684 electric field Effects 0.000 abstract 3
- 230000005236 sound signal Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present
- H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
Landscapes
- Noise Elimination (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12398478A JPS5550746A (en) | 1978-10-07 | 1978-10-07 | Noise reduction unit for automobile audio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12398478A JPS5550746A (en) | 1978-10-07 | 1978-10-07 | Noise reduction unit for automobile audio equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5550746A true JPS5550746A (en) | 1980-04-12 |
| JPS6134302B2 JPS6134302B2 (enrdf_load_stackoverflow) | 1986-08-07 |
Family
ID=14874156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12398478A Granted JPS5550746A (en) | 1978-10-07 | 1978-10-07 | Noise reduction unit for automobile audio equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5550746A (enrdf_load_stackoverflow) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5769339U (enrdf_load_stackoverflow) * | 1980-10-14 | 1982-04-26 | ||
| JPS57148935U (enrdf_load_stackoverflow) * | 1981-03-12 | 1982-09-18 | ||
| US4469164A (en) * | 1981-05-15 | 1984-09-04 | Toyota Jidosha Kogyo Kabushiki Kaisha | Method of and apparatus for inspecting the quality of a casting produced by a die-casting machine |
| US4480335A (en) * | 1981-05-28 | 1984-10-30 | Sanyo Electric Company Ltd. | Noise removing apparatus in an FM receiver |
| JPS6054262A (ja) * | 1983-05-09 | 1985-03-28 | Ube Ind Ltd | 射出成形装置のシリンダ速度監視制御方法 |
| JPS61174827A (ja) * | 1983-09-26 | 1986-08-06 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Uhf−fm放送受信時の受信妨害検出器 |
| JPS62151259A (ja) * | 1985-12-25 | 1987-07-06 | Ube Ind Ltd | 射出成形装置における成形品の良否判別方法 |
| JPH0318464A (ja) * | 1989-06-13 | 1991-01-28 | Kobe Steel Ltd | 局部加圧併用式ダイカスト装置 |
| EP1213832A1 (en) * | 2000-12-05 | 2002-06-12 | Semiconductor Ideas to The Market (ItoM) BV | AM receiver with audio filtering means |
| JP2013009066A (ja) * | 2011-06-23 | 2013-01-10 | Toyota Motor Corp | 車載ラジオノイズ低減システム |
-
1978
- 1978-10-07 JP JP12398478A patent/JPS5550746A/ja active Granted
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5769339U (enrdf_load_stackoverflow) * | 1980-10-14 | 1982-04-26 | ||
| JPS57148935U (enrdf_load_stackoverflow) * | 1981-03-12 | 1982-09-18 | ||
| US4469164A (en) * | 1981-05-15 | 1984-09-04 | Toyota Jidosha Kogyo Kabushiki Kaisha | Method of and apparatus for inspecting the quality of a casting produced by a die-casting machine |
| US4480335A (en) * | 1981-05-28 | 1984-10-30 | Sanyo Electric Company Ltd. | Noise removing apparatus in an FM receiver |
| JPS6054262A (ja) * | 1983-05-09 | 1985-03-28 | Ube Ind Ltd | 射出成形装置のシリンダ速度監視制御方法 |
| JPS61174827A (ja) * | 1983-09-26 | 1986-08-06 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Uhf−fm放送受信時の受信妨害検出器 |
| JPS62151259A (ja) * | 1985-12-25 | 1987-07-06 | Ube Ind Ltd | 射出成形装置における成形品の良否判別方法 |
| JPH0318464A (ja) * | 1989-06-13 | 1991-01-28 | Kobe Steel Ltd | 局部加圧併用式ダイカスト装置 |
| EP1213832A1 (en) * | 2000-12-05 | 2002-06-12 | Semiconductor Ideas to The Market (ItoM) BV | AM receiver with audio filtering means |
| WO2002047260A3 (en) * | 2000-12-05 | 2004-01-08 | Semiconductor Ideas Market Bv | Am receiver with audio filtering means |
| US6993305B2 (en) | 2000-12-05 | 2006-01-31 | Kasperkovitz Wolfdietrich Geor | AM receiver with audio filtering means |
| JP2013009066A (ja) * | 2011-06-23 | 2013-01-10 | Toyota Motor Corp | 車載ラジオノイズ低減システム |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6134302B2 (enrdf_load_stackoverflow) | 1986-08-07 |
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