WO2012077931A3 - 고조파를 이용한 디지털 오디오 증폭 장치 및 그 방법 - Google Patents

고조파를 이용한 디지털 오디오 증폭 장치 및 그 방법 Download PDF

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Publication number
WO2012077931A3
WO2012077931A3 PCT/KR2011/009216 KR2011009216W WO2012077931A3 WO 2012077931 A3 WO2012077931 A3 WO 2012077931A3 KR 2011009216 W KR2011009216 W KR 2011009216W WO 2012077931 A3 WO2012077931 A3 WO 2012077931A3
Authority
WO
WIPO (PCT)
Prior art keywords
harmonics
digital audio
audio signal
amplification device
audio amplification
Prior art date
Application number
PCT/KR2011/009216
Other languages
English (en)
French (fr)
Other versions
WO2012077931A2 (ko
Inventor
오종훈
전경훈
조성혜
이우석
Original Assignee
(주)펄서스 테크놀러지
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 (주)펄서스 테크놀러지 filed Critical (주)펄서스 테크놀러지
Priority to US13/992,152 priority Critical patent/US20140023208A1/en
Publication of WO2012077931A2 publication Critical patent/WO2012077931A2/ko
Publication of WO2012077931A3 publication Critical patent/WO2012077931A3/ko

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3264—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits in audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

본 발명은 고조파를 이용한 디지털 오디오 증폭 장치 및 그 방법에 관한 것으로서, 상세하게는 오디오 신호가 미리 설정된 임계치를 초과하는 경우 오디오 신호의 크기 및 특성에 따라 임계치를 초과한 오디오 신호를 보상하기 위해 오디오 신호의 고조파의 특성(예컨대, 고조파의 크기 또는 주파수 성분 등)을 차등화시켜 발생시킴으로써, 디지털 오디오 증폭시 오디오의 크기 및 음감을 용이하게 향상시킬 수 있다.
PCT/KR2011/009216 2010-12-07 2011-11-30 고조파를 이용한 디지털 오디오 증폭 장치 및 그 방법 WO2012077931A2 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/992,152 US20140023208A1 (en) 2010-12-07 2011-11-30 Digital audio amplification device using harmonics and method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0124539 2010-12-07
KR1020100124539A KR101123343B1 (ko) 2010-12-07 2010-12-07 고조파를 이용한 디지털 오디오 증폭 장치 및 그 방법

Publications (2)

Publication Number Publication Date
WO2012077931A2 WO2012077931A2 (ko) 2012-06-14
WO2012077931A3 true WO2012077931A3 (ko) 2012-08-02

Family

ID=46141843

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/009216 WO2012077931A2 (ko) 2010-12-07 2011-11-30 고조파를 이용한 디지털 오디오 증폭 장치 및 그 방법

Country Status (3)

Country Link
US (1) US20140023208A1 (ko)
KR (1) KR101123343B1 (ko)
WO (1) WO2012077931A2 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101483600B1 (ko) * 2013-04-09 2015-01-16 (주)하이텍영상 고정주파수 방식의 디지털 앰프 출력 제한 제어장치
GB201406574D0 (en) * 2014-04-11 2014-05-28 Microsoft Corp Audio Signal Processing
KR102441950B1 (ko) * 2017-08-11 2022-09-08 삼성전자 주식회사 오디오 신호의 크기에 기반하여 오디오 신호를 증폭하는 방법 및 이를 구현한 전자 장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH077787A (ja) * 1993-06-15 1995-01-10 Matsushita Electric Ind Co Ltd 電子制御スピーカシステム
KR20040035749A (ko) * 2001-08-31 2004-04-29 코닌클리케 필립스 일렉트로닉스 엔.브이. 사운드 신호의 대역폭 확장 방법
KR20070113434A (ko) * 2006-05-23 2007-11-29 삼성전자주식회사 입력이득 자동 제어회로 및 그 방법
KR20100024727A (ko) * 2008-08-26 2010-03-08 엘지전자 주식회사 휴대 단말기의 음원 재생 장치 및 음원 재생 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7190292B2 (en) * 1999-11-29 2007-03-13 Bizjak Karl M Input level adjust system and method
JP4016206B2 (ja) * 2003-11-28 2007-12-05 ソニー株式会社 音声信号処理装置及び音声信号処理方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH077787A (ja) * 1993-06-15 1995-01-10 Matsushita Electric Ind Co Ltd 電子制御スピーカシステム
KR20040035749A (ko) * 2001-08-31 2004-04-29 코닌클리케 필립스 일렉트로닉스 엔.브이. 사운드 신호의 대역폭 확장 방법
KR20070113434A (ko) * 2006-05-23 2007-11-29 삼성전자주식회사 입력이득 자동 제어회로 및 그 방법
KR20100024727A (ko) * 2008-08-26 2010-03-08 엘지전자 주식회사 휴대 단말기의 음원 재생 장치 및 음원 재생 방법

Also Published As

Publication number Publication date
KR101123343B1 (ko) 2012-03-23
US20140023208A1 (en) 2014-01-23
WO2012077931A2 (ko) 2012-06-14

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