CN1894855B - 用于限幅检测和信号修改的系统和方法 - Google Patents

用于限幅检测和信号修改的系统和方法 Download PDF

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Publication number
CN1894855B
CN1894855B CN200480009689.9A CN200480009689A CN1894855B CN 1894855 B CN1894855 B CN 1894855B CN 200480009689 A CN200480009689 A CN 200480009689A CN 1894855 B CN1894855 B CN 1894855B
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CN
China
Prior art keywords
audio signal
signal
digital pulse
pulse coding
amplitude limit
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 - Fee Related
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CN200480009689.9A
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English (en)
Chinese (zh)
Other versions
CN1894855A (zh
Inventor
杰克·B·安德森
拉瑞·E·汉德
威尔森·E·泰勒
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D2Audio LLC
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D2Audio LLC
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Publication date
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Publication of CN1894855A publication Critical patent/CN1894855A/zh
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Publication of CN1894855B publication Critical patent/CN1894855B/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • 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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/523—Circuit arrangements for protecting such amplifiers for amplifiers using field-effect devices
    • 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
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
    • 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
    • H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/002—Control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
    • H04L7/005—Correction by an elastic buffer

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
CN200480009689.9A 2003-03-21 2004-03-19 用于限幅检测和信号修改的系统和方法 Expired - Fee Related CN1894855B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US45641403P 2003-03-21 2003-03-21
US60/456,414 2003-03-21
US46977003P 2003-05-12 2003-05-12
US60/469,770 2003-05-12
PCT/US2004/008534 WO2004086616A2 (en) 2003-03-21 2004-03-19 Clip detection in pwm amplifier

Publications (2)

Publication Number Publication Date
CN1894855A CN1894855A (zh) 2007-01-10
CN1894855B true CN1894855B (zh) 2011-06-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200480009689.9A Expired - Fee Related CN1894855B (zh) 2003-03-21 2004-03-19 用于限幅检测和信号修改的系统和方法

Country Status (5)

Country Link
EP (1) EP1606884A2 (ja)
JP (1) JP4617298B2 (ja)
CN (1) CN1894855B (ja)
HK (1) HK1094626A1 (ja)
WO (1) WO2004086616A2 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4618017B2 (ja) * 2004-07-02 2011-01-26 ヤマハ株式会社 パルス幅変調増幅器のクリップ抑止回路
US7286010B2 (en) * 2006-01-26 2007-10-23 D2Audio Corporation Systems and methods for over-current protection
JP5266830B2 (ja) * 2008-03-26 2013-08-21 ヤマハ株式会社 自励式ｄ級増幅器
CN103955784B (zh) * 2014-04-01 2016-09-14 南京航空航天大学 基于数据采集协处理器的制造车间个人电子看板系统
US10256780B2 (en) 2015-04-09 2019-04-09 Icepower A/S Duty cycle clipper
CN107221335B (zh) * 2017-05-27 2020-07-14 大连理工大学 一种监控音频信号的数字化装置和方法
CN109766889B (zh) * 2018-11-19 2021-04-09 浙江众合科技股份有限公司 基于曲线拟合的轨道图像识别后处理方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1128549A2 (en) * 2000-02-17 2001-08-29 Visteon Global Technologies, Inc. Detection of a DC offset in an automotive audio system
CN1312971A (zh) * 1999-06-14 2001-09-12 爱特梅尔股份有限公司 数字式自动增益控制

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3047420B2 (ja) * 1990-03-15 2000-05-29 ソニー株式会社 データ圧縮符号化装置
JP3121987B2 (ja) * 1994-05-11 2001-01-09 シャープ株式会社 スピーカー駆動装置
JP3214981B2 (ja) * 1994-06-30 2001-10-02 旭化成マイクロシステム株式会社 Ａｇｃ機能付きデルタシグマ型ａ／ｄ変換器
JP2000022544A (ja) * 1998-07-01 2000-01-21 Mitsubishi Electric Corp Ｄ／ａ変換装置
US6157331A (en) * 1998-10-01 2000-12-05 Tritech Microelectronics, Ltd. Sigma delta modulator with automatic saturation detection and recovery
WO2001026222A1 (en) * 1999-10-01 2001-04-12 Smith Carroll W Dynamic closed-loop audio amplifier system
US8085943B2 (en) * 1999-11-29 2011-12-27 Bizjak Karl M Noise extractor system and method
JP4251769B2 (ja) * 2000-11-15 2009-04-08 ヤマハ株式会社 ディジタルオーディオアンプ
JP3815607B2 (ja) * 2001-11-16 2006-08-30 横河電機株式会社 アナログデジタル変換器を用いた温度伝送器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1312971A (zh) * 1999-06-14 2001-09-12 爱特梅尔股份有限公司 数字式自动增益控制
EP1128549A2 (en) * 2000-02-17 2001-08-29 Visteon Global Technologies, Inc. Detection of a DC offset in an automotive audio system

Also Published As

Publication number Publication date
JP2006523414A (ja) 2006-10-12
WO2004086616A2 (en) 2004-10-07
HK1094626A1 (en) 2007-04-04
EP1606884A2 (en) 2005-12-21
WO2004086616A3 (en) 2004-11-25
JP4617298B2 (ja) 2011-01-19
CN1894855A (zh) 2007-01-10

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