KR940025157A - 음성신호 자동진폭 제어장치 - Google Patents
음성신호 자동진폭 제어장치 Download PDFInfo
- Publication number
- KR940025157A KR940025157A KR1019940009563A KR19940009563A KR940025157A KR 940025157 A KR940025157 A KR 940025157A KR 1019940009563 A KR1019940009563 A KR 1019940009563A KR 19940009563 A KR19940009563 A KR 19940009563A KR 940025157 A KR940025157 A KR 940025157A
- Authority
- KR
- South Korea
- Prior art keywords
- level
- audio signal
- analog
- variable attenuator
- digital converter
- 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
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
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3078—Circuits generating control signals for digitally modulated signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/001—Digital control of analog signals
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Analogue/Digital Conversion (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
Description
Claims (2)
- 음성신호를 디지탈값으로 변환하는 아날로그/디지탈 변환기, 상기 아날로그/디지탈 변환기의 전단에 설치된 전자 컨트롤 가변감쇠기, 이 전자 컨트롤 가변감쇠기의 출력전압을 일정 주기마다 읽어 들이는 독입수단, 이 읽어 들인 출력전압 레벨을 기준레벨과 비교하여 검출편차를 출력하는 비교수단, 및 검출편차가 검출되었을때 검출편차에 따른 어텍 시간과 리커버리 시간을 설정하여 상기 전자 컨트롤 가변감쇠기의 감쇠율을 변경하는 감쇠율 설정수단을 구비한 것을 특징으로 하는 음성신호 자동진폭 제어장치.
- 제 1항에 있어서, 상기 독입수단의 전단에 아날로그/디지탈 변환기를 설치하고, 이 아날로그/디지탈 변환기의 입력레벨이 최대 허용치를 초과할때 허용치 이하의 레벨로 감쇠하기 위한 감쇠기를 상기 아날로그/디지탈 변환기의 전단에 설치한 것을 특징으로 하는 음성신호 자동진폭 제어장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP103917/1993 | 1993-04-30 | ||
JP5103917A JPH06314942A (ja) | 1993-04-30 | 1993-04-30 | 音声信号自動振幅制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940025157A true KR940025157A (ko) | 1994-11-19 |
KR960011409B1 KR960011409B1 (ko) | 1996-08-22 |
Family
ID=14366785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940009563A Expired - Fee Related KR960011409B1 (ko) | 1993-04-30 | 1994-04-30 | 음성신호 자동진폭 제어장치 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPH06314942A (ko) |
KR (1) | KR960011409B1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4578169B2 (ja) * | 2004-07-23 | 2010-11-10 | 三洋電機株式会社 | 自動レベル調整回路 |
JP2008099163A (ja) * | 2006-10-16 | 2008-04-24 | Audio Technica Corp | ノイズキャンセルヘッドフォンおよびヘッドフォンにおけるノイズキャンセル方法 |
JP5342945B2 (ja) | 2009-07-02 | 2013-11-13 | ラピスセミコンダクタ株式会社 | 音声信号の振幅調整装置及び音声信号の振幅調整方法 |
US8185387B1 (en) * | 2011-11-14 | 2012-05-22 | Google Inc. | Automatic gain control |
-
1993
- 1993-04-30 JP JP5103917A patent/JPH06314942A/ja active Pending
-
1994
- 1994-04-30 KR KR1019940009563A patent/KR960011409B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06314942A (ja) | 1994-11-08 |
KR960011409B1 (ko) | 1996-08-22 |
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