JPH0474886B2 - - Google Patents
Info
- Publication number
- JPH0474886B2 JPH0474886B2 JP57187316A JP18731682A JPH0474886B2 JP H0474886 B2 JPH0474886 B2 JP H0474886B2 JP 57187316 A JP57187316 A JP 57187316A JP 18731682 A JP18731682 A JP 18731682A JP H0474886 B2 JPH0474886 B2 JP H0474886B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- noise reduction
- signal
- output
- gain 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57187316A JPS5977712A (ja) | 1982-10-25 | 1982-10-25 | ノイズ低減処理回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57187316A JPS5977712A (ja) | 1982-10-25 | 1982-10-25 | ノイズ低減処理回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5977712A JPS5977712A (ja) | 1984-05-04 |
JPH0474886B2 true JPH0474886B2 (en, 2012) | 1992-11-27 |
Family
ID=16203865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57187316A Granted JPS5977712A (ja) | 1982-10-25 | 1982-10-25 | ノイズ低減処理回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5977712A (en, 2012) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0379549U (en, 2012) * | 1989-12-05 | 1991-08-14 | ||
KR100252646B1 (ko) * | 1997-01-29 | 2000-04-15 | 윤종용 | 직류옵셋제거및전등화특성을갖는혼합기증폭회로 |
-
1982
- 1982-10-25 JP JP57187316A patent/JPS5977712A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5977712A (ja) | 1984-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3678416A (en) | Dynamic noise filter having means for varying cutoff point | |
US4249042A (en) | Multiband cross-coupled compressor with overshoot protection circuit | |
US4538297A (en) | Aurally sensitized flat frequency response noise reduction compansion system | |
CA1153315A (en) | Signal compression and expansion system | |
US4322641A (en) | Noise reduction system | |
US5172358A (en) | Loudness control circuit for an audio device | |
KR900008595B1 (ko) | 적응 신호웨이팅 시스템 | |
KR910006441B1 (ko) | 디지탈 및 아날로그 변환시스템 | |
US4363006A (en) | Noise reduction system having series connected variable frequency filters | |
US4460871A (en) | Multiband cross-coupled compressor with overshoot protection circuit | |
CA1158171A (en) | Circuit for noise reduction particularly useful with signal recording/reproducing apparatus | |
US3529244A (en) | Method and apparatus for frequency sensitive amplitude limiting | |
KR880000597B1 (ko) | 잡음 저감 회로 | |
US3972010A (en) | Compressors, expanders and noise reduction systems | |
US4317142A (en) | Electronic gain and noise control for recording of analog information | |
US4271439A (en) | Electronic gain and noise control for recording of analog information | |
JPH0474886B2 (en, 2012) | ||
KR880000105B1 (ko) | 신호의 동적 범위 변경 시스템 | |
US4306201A (en) | Signal processing circuit | |
JPS63119328A (ja) | 信号の録音及び送信システムにおける媒体過負荷効果を低減させるノイズ低減装置 | |
JPS6322374B2 (en, 2012) | ||
JPH0522416B2 (en, 2012) | ||
JPS6232850B2 (en, 2012) | ||
JP2611233B2 (ja) | 振幅圧縮伸長回路 | |
JP2516943B2 (ja) | 磁気記録再生装置 |