JPS57141112A - Noise eliminating device - Google Patents
Noise eliminating deviceInfo
- Publication number
- JPS57141112A JPS57141112A JP56025396A JP2539681A JPS57141112A JP S57141112 A JPS57141112 A JP S57141112A JP 56025396 A JP56025396 A JP 56025396A JP 2539681 A JP2539681 A JP 2539681A JP S57141112 A JPS57141112 A JP S57141112A
- Authority
- JP
- Japan
- Prior art keywords
- sound
- noise
- detecting circuit
- variable delay
- delay 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.)
- Pending
Links
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
- H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Noise Elimination (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56025396A JPS57141112A (en) | 1981-02-25 | 1981-02-25 | Noise eliminating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56025396A JPS57141112A (en) | 1981-02-25 | 1981-02-25 | Noise eliminating device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57141112A true JPS57141112A (en) | 1982-09-01 |
Family
ID=12164726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56025396A Pending JPS57141112A (en) | 1981-02-25 | 1981-02-25 | Noise eliminating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57141112A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012191357A (ja) * | 2011-03-09 | 2012-10-04 | Asahi Kasei Electronics Co Ltd | 位相ずれ補正回路、位相可変増幅回路、位相ずれ補正方法及び位相調整方法 |
-
1981
- 1981-02-25 JP JP56025396A patent/JPS57141112A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012191357A (ja) * | 2011-03-09 | 2012-10-04 | Asahi Kasei Electronics Co Ltd | 位相ずれ補正回路、位相可変増幅回路、位相ずれ補正方法及び位相調整方法 |
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