KR870004569A - 자동 이득 제어 장치 - Google Patents

자동 이득 제어 장치 Download PDF

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Publication number
KR870004569A
KR870004569A KR1019860007864A KR860007864A KR870004569A KR 870004569 A KR870004569 A KR 870004569A KR 1019860007864 A KR1019860007864 A KR 1019860007864A KR 860007864 A KR860007864 A KR 860007864A KR 870004569 A KR870004569 A KR 870004569A
Authority
KR
South Korea
Prior art keywords
gain control
automatic gain
control device
control value
generating
Prior art date
Application number
KR1019860007864A
Other languages
English (en)
Other versions
KR900009193B1 (ko
Inventor
파커 웨스트 린
Original Assignee
토마스 씨. 어윈
인터내셔널 비지네스 머신즈 코포레이션
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 토마스 씨. 어윈, 인터내셔널 비지네스 머신즈 코포레이션 filed Critical 토마스 씨. 어윈
Publication of KR870004569A publication Critical patent/KR870004569A/ko
Application granted granted Critical
Publication of KR900009193B1 publication Critical patent/KR900009193B1/ko

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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
    • 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
    • H03G3/3089—Control of digital or coded signals

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

내용 없음

Description

자동 이득 제어 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 대한 시스템의 기능 블록 도면.
제2도는 본 발명의 양호한 실시예 작동을 묘사하는 플로우챠트.
제3도는 본 발명에 대한 대체 실시예를 묘사하는 플로우챠트.
* 도면의 주요 부분에 대한 부호의 설명
11:신호 처리기 12:명령 메모리
13:데이타 메모리 15:데이타 레지스터
16:A/D 변환기 17:수신기
19:호스트 처리기 21,22,23:라인

Claims (1)

  1. 선정된 자동 이득 제어값을 설정하기 위한 수단과, 입력 신호 샘플을 받아들이고 상기 샘플을 상기 선정된 자동 이득 제어 값으로 배율하여, 적산항을 발생하기 위한 수단과, 신호 처리기내에 오버플로우 조건을 일으키는 상기 적산항 값 다음에 일어나는 상기 자동 이득 제어값을 감소시키기 위한 수단을 포함하는 것을 특징으로 하는 신호 처리기내의 자동 이득 제어 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860007864A 1985-10-11 1986-09-17 자동 이득 제어 장치 KR900009193B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US786,911 1977-04-12
US786911 1985-10-11
US06/786,911 US4747065A (en) 1985-10-11 1985-10-11 Automatic gain control in a digital signal processor

Publications (2)

Publication Number Publication Date
KR870004569A true KR870004569A (ko) 1987-05-11
KR900009193B1 KR900009193B1 (ko) 1990-12-24

Family

ID=25139924

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860007864A KR900009193B1 (ko) 1985-10-11 1986-09-17 자동 이득 제어 장치

Country Status (11)

Country Link
US (1) US4747065A (ko)
EP (1) EP0218870B1 (ko)
JP (1) JPH073950B2 (ko)
KR (1) KR900009193B1 (ko)
CN (1) CN1008586B (ko)
AR (1) AR244901A1 (ko)
BR (1) BR8604622A (ko)
CA (1) CA1276994C (ko)
DE (1) DE3687684T2 (ko)
HK (1) HK90893A (ko)
PH (1) PH25270A (ko)

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US4849711A (en) * 1987-09-04 1989-07-18 Digital Equipment Corporation Automatic gain control system
US5016205A (en) * 1989-04-27 1991-05-14 Motorola, Inc. Digital signal processor based AGC
NL8902613A (nl) * 1989-10-23 1991-05-16 Philips Nv Inrichting voor het uitlezen van op een informatiedrager opgetekende digitale informatie alsmede een piekdetector en een informatiedrager voor een dergelijke inrichting.
US5179528A (en) * 1989-11-22 1993-01-12 Texas Instruments Incorporated Signal processing system and method implementing a non-linear transfer function approximated by a piecewise linear transformation
US5029162A (en) * 1990-03-06 1991-07-02 Confertech International Automatic gain control using root-mean-square circuitry in a digital domain conference bridge for a telephone network
US5083304A (en) * 1990-09-28 1992-01-21 Motorola, Inc. Automatic gain control apparatus and method
US5142695A (en) * 1991-03-21 1992-08-25 Novatel Communications, Ltd. Cellular radio-telephone receiver employing improved technique for generating an indication of received signal strength
JP3076086B2 (ja) * 1991-06-28 2000-08-14 シャープ株式会社 音声合成装置用ポストフィルタ
US5267322A (en) * 1991-12-13 1993-11-30 Digital Sound Corporation Digital automatic gain control with lookahead, adaptive noise floor sensing, and decay boost initialization
US5479119A (en) * 1994-11-23 1995-12-26 Analog Devices, Inc. High speed active overvoltage detection and protection for overvoltage sensitive circuits
GB9513419D0 (en) * 1995-06-30 1995-09-06 Philips Electronics Uk Ltd Audio signal reproduction apparatus
US5694436A (en) * 1995-07-21 1997-12-02 Chaw Khong Co., Ltd. Gain control system for handling periodic noises
US5689551A (en) * 1995-10-17 1997-11-18 Thomson Consumer Electronics, Inc. Caller ID system with prescaler
US6026131A (en) * 1995-12-27 2000-02-15 Laurent; Souef Automatic gain control systems
US5956494A (en) * 1996-03-21 1999-09-21 Motorola Inc. Method, apparatus, and computer instruction for enabling gain control in a digital signal processor
DE19632902A1 (de) * 1996-08-16 1998-02-19 Bosch Gmbh Robert Verfahren zur automatischen Anpassung eines Empfängers an verschiedene Signalstärken und Empfänger zur Durchführung des Verfahrens
US5841820A (en) * 1996-10-07 1998-11-24 Zenith Electronics Corporation Data comparison AGC system for VSB receiver
FR2754663A1 (fr) * 1996-10-10 1998-04-17 Philips Electronics Nv Appareil telephonique muni de moyens de controle automatique de gain
GB2355607B (en) 1999-10-20 2002-01-16 Motorola Israel Ltd Digital speech processing system
US7130705B2 (en) * 2001-01-08 2006-10-31 International Business Machines Corporation System and method for microphone gain adjust based on speaker orientation
US7386074B1 (en) 2003-10-06 2008-06-10 Redpine Signals, Inc. Digital automatic gain control method and apparatus
JP4241443B2 (ja) * 2004-03-10 2009-03-18 ソニー株式会社 音声信号処理装置、音声信号処理方法
JP4783319B2 (ja) * 2007-03-27 2011-09-28 日本電信電話株式会社 ダイナミックレンジスケール回路
CN102118135B (zh) * 2009-12-31 2015-12-02 骅讯电子企业股份有限公司 信号自动增益调整方法与应用该方法的装置

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US3562504A (en) * 1967-11-08 1971-02-09 Texas Instruments Inc Digital automatic gain control
US3969683A (en) * 1975-04-21 1976-07-13 Bell Telephone Laboratories, Incorporated Automatic level control circuit
JPS51140463A (en) * 1975-05-30 1976-12-03 Hitachi Ltd Automatic volume control system
US3996519A (en) * 1975-07-02 1976-12-07 The United States Of America As Represented By The Secretary Of The Navy Digital signal processor
US4161628A (en) * 1978-01-31 1979-07-17 Harris Corporation Technique for tracking amplitude fades for multi-amplitude signalling
US4213097A (en) * 1978-10-19 1980-07-15 Racal-Milgo, Inc. Hybrid automatic gain control circuit
US4191995A (en) * 1979-01-02 1980-03-04 Bell Telephone Laboratories, Incorporated Digital automatic gain control circuit
JPS55110303A (en) * 1979-02-15 1980-08-25 Mitsubishi Electric Corp Analog input adjustment system of ddc
US4282581A (en) * 1979-10-15 1981-08-04 Sperry Corporation Automatic overflow/imminent overflow detector
JPS5658306A (en) * 1979-10-18 1981-05-21 Nec Corp Automatic gain control circuit
US4464723A (en) * 1981-12-31 1984-08-07 Rca Corporation Digital gain control system
JPS58168314A (ja) * 1982-03-30 1983-10-04 Nec Corp 自動利得制御増巾回路
US4477698A (en) * 1982-09-07 1984-10-16 Melita Electronics Labs, Inc. Apparatus for detecting pick-up at a remote telephone set
US4554511A (en) * 1982-09-29 1985-11-19 Tetra Tech, Inc. Offset voltage correction network for instantaneous floating point amplifier
JPS5972222A (ja) * 1982-10-18 1984-04-24 Nec Corp Ａ／ｄ変換装置
US4499586A (en) * 1983-02-28 1985-02-12 Hazeltine Corporation Microprocessor controlled AGC
JPS60102049A (ja) * 1983-11-08 1985-06-06 Nippon Telegr & Teleph Corp <Ntt> 信号再生方式
US4623934A (en) * 1983-11-16 1986-11-18 Rockwell International Corporation AGC update apparatus and method of using same
US4553104A (en) * 1984-03-01 1985-11-12 Honeywell Inc. Method of compensating an amplifier system having a variable gain amplifier to achieve a constant overall system signal gain and an apparatus utilizing the same
US4551688A (en) * 1984-05-23 1985-11-05 Rockwell International Corporation Delay compensated automatic gain control
NL8403200A (nl) * 1984-10-22 1986-05-16 Philips Nv Lawaaiafhankelijke- en spraakonafhankelijke volumeregeling.

Also Published As

Publication number Publication date
CA1276994C (en) 1990-11-27
EP0218870B1 (en) 1993-02-03
CN86106498A (zh) 1987-06-10
JPH073950B2 (ja) 1995-01-18
CN1008586B (zh) 1990-06-27
JPS6288432A (ja) 1987-04-22
US4747065A (en) 1988-05-24
EP0218870A2 (en) 1987-04-22
AR244901A1 (es) 1993-11-30
DE3687684D1 (de) 1993-03-18
KR900009193B1 (ko) 1990-12-24
EP0218870A3 (en) 1989-05-03
BR8604622A (pt) 1987-05-26
DE3687684T2 (de) 1993-08-19
HK90893A (en) 1993-09-10
PH25270A (en) 1991-03-27

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