CN104081664B - 用于具有低ic功耗和高动态范围的电路的方法和装置 - Google Patents

用于具有低ic功耗和高动态范围的电路的方法和装置 Download PDF

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Publication number
CN104081664B
CN104081664B CN201380006724.0A CN201380006724A CN104081664B CN 104081664 B CN104081664 B CN 104081664B CN 201380006724 A CN201380006724 A CN 201380006724A CN 104081664 B CN104081664 B CN 104081664B
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China
Prior art keywords
volume
amplifier
digital
gain
audio signal
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CN201380006724.0A
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Chinese (zh)
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CN104081664A (zh
Inventor
A·W·佩雷拉
P·A·方丹
M·韦赛尔
C·特瑞翰
S·赛维
B·N·查拉帕
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Texas Instruments Inc
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Texas Instruments Inc
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    • 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
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • 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

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Control Of Amplification And Gain Control (AREA)
CN201380006724.0A 2012-01-25 2013-01-25 用于具有低ic功耗和高动态范围的电路的方法和装置 Active CN104081664B (zh)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201261590607P 2012-01-25 2012-01-25
US61/590,607 2012-01-25
US201261598500P 2012-02-14 2012-02-14
US61/598,500 2012-02-14
US13/443,525 US9065413B2 (en) 2012-01-25 2012-04-10 Method and apparatus for circuit with low IC power dissipation and high dynamic range
US13/443,525 2012-04-10
PCT/US2013/023160 WO2013112846A1 (en) 2012-01-25 2013-01-25 Method and apparatus for circuit with low ic power dissipation and high dynamic range

Publications (2)

Publication Number Publication Date
CN104081664A CN104081664A (zh) 2014-10-01
CN104081664B true CN104081664B (zh) 2017-03-01

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CN201380006724.0A Active CN104081664B (zh) 2012-01-25 2013-01-25 用于具有低ic功耗和高动态范围的电路的方法和装置

Country Status (4)

Country Link
US (1) US9065413B2 (enExample)
JP (1) JP6141880B2 (enExample)
CN (1) CN104081664B (enExample)
WO (1) WO2013112846A1 (enExample)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9831843B1 (en) 2013-09-05 2017-11-28 Cirrus Logic, Inc. Opportunistic playback state changes for audio devices
US9391576B1 (en) * 2013-09-05 2016-07-12 Cirrus Logic, Inc. Enhancement of dynamic range of audio signal path
US9774342B1 (en) 2014-03-05 2017-09-26 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system
US9525940B1 (en) 2014-03-05 2016-12-20 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system
US9306588B2 (en) 2014-04-14 2016-04-05 Cirrus Logic, Inc. Switchable secondary playback path
US10785568B2 (en) 2014-06-26 2020-09-22 Cirrus Logic, Inc. Reducing audio artifacts in a system for enhancing dynamic range of audio signal path
US9337795B2 (en) 2014-09-09 2016-05-10 Cirrus Logic, Inc. Systems and methods for gain calibration of an audio signal path
US9596537B2 (en) 2014-09-11 2017-03-14 Cirrus Logic, Inc. Systems and methods for reduction of audio artifacts in an audio system with dynamic range enhancement
US9503027B2 (en) 2014-10-27 2016-11-22 Cirrus Logic, Inc. Systems and methods for dynamic range enhancement using an open-loop modulator in parallel with a closed-loop modulator
US9973859B2 (en) * 2015-02-17 2018-05-15 Frank Joseph Pompei Amplifiers for parametric loudspeakers
US9584911B2 (en) 2015-03-27 2017-02-28 Cirrus Logic, Inc. Multichip dynamic range enhancement (DRE) audio processing methods and apparatuses
US9959856B2 (en) 2015-06-15 2018-05-01 Cirrus Logic, Inc. Systems and methods for reducing artifacts and improving performance of a multi-path analog-to-digital converter
US9955254B2 (en) 2015-11-25 2018-04-24 Cirrus Logic, Inc. Systems and methods for preventing distortion due to supply-based modulation index changes in an audio playback system
US9543975B1 (en) 2015-12-29 2017-01-10 Cirrus Logic, Inc. Multi-path analog front end and analog-to-digital converter for a signal processing system with low-pass filter between paths
US9880802B2 (en) 2016-01-21 2018-01-30 Cirrus Logic, Inc. Systems and methods for reducing audio artifacts from switching between paths of a multi-path signal processing system
US9998826B2 (en) 2016-06-28 2018-06-12 Cirrus Logic, Inc. Optimization of performance and power in audio system
US10545561B2 (en) 2016-08-10 2020-01-28 Cirrus Logic, Inc. Multi-path digitation based on input signal fidelity and output requirements
US10263630B2 (en) 2016-08-11 2019-04-16 Cirrus Logic, Inc. Multi-path analog front end with adaptive path
US9813814B1 (en) 2016-08-23 2017-11-07 Cirrus Logic, Inc. Enhancing dynamic range based on spectral content of signal
US9762255B1 (en) 2016-09-19 2017-09-12 Cirrus Logic, Inc. Reconfiguring paths in a multiple path analog-to-digital converter
US9780800B1 (en) 2016-09-19 2017-10-03 Cirrus Logic, Inc. Matching paths in a multiple path analog-to-digital converter
US9929703B1 (en) 2016-09-27 2018-03-27 Cirrus Logic, Inc. Amplifier with configurable final output stage
US9967665B2 (en) 2016-10-05 2018-05-08 Cirrus Logic, Inc. Adaptation of dynamic range enhancement based on noise floor of signal
US10321230B2 (en) 2017-04-07 2019-06-11 Cirrus Logic, Inc. Switching in an audio system with multiple playback paths
US10008992B1 (en) 2017-04-14 2018-06-26 Cirrus Logic, Inc. Switching in amplifier with configurable final output stage
US9917557B1 (en) 2017-04-17 2018-03-13 Cirrus Logic, Inc. Calibration for amplifier with configurable final output stage
KR102356625B1 (ko) 2017-06-19 2022-01-28 삼성전자주식회사 아날로그 출력의 특성을 향상시키기 위해 이득 제어 및 이득 압축을 수행하는 전자 회로 및 그것을 포함하는 전자 장치
JP2020141379A (ja) * 2019-03-01 2020-09-03 富士通株式会社 歪み補償装置及び歪み補償方法
CN110212871B (zh) * 2019-06-12 2022-03-22 上海艾为电子技术股份有限公司 一种音频功率放大器及其增益控制电路和控制方法
TWI783644B (zh) * 2021-08-23 2022-11-11 瑞昱半導體股份有限公司 音訊處理裝置和音訊處理方法
CN114387988B (zh) * 2022-01-19 2025-01-10 昆腾微电子股份有限公司 一种音频降噪方法及装置
US12334950B2 (en) * 2022-12-28 2025-06-17 Texas Instruments Incorporated Dynamic range boost for amplifiers

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030215034A1 (en) * 1999-02-24 2003-11-20 Takatoshi Katsura Wireless terminal device
CN1909366A (zh) * 2001-02-16 2007-02-07 高通股份有限公司 直接变频接收机结构
US20080004041A1 (en) * 2006-06-30 2008-01-03 Samsung Electronics Co., Ltd. Method and system for confirming location of lost wireless terminal
WO2008118353A1 (en) * 2007-03-23 2008-10-02 Beckman Coulter, Inc. Multi-gain adaptive linear processing and gated digital system for use in flow cytometry
WO2008146189A2 (en) * 2007-05-30 2008-12-04 Nxp B.V. Audio signal amplification
US20090257599A1 (en) * 2008-04-10 2009-10-15 Bang & Olufsen Icepower A/S Thermal protection of electro dynamic transducers used in loudspeaker systems
CN101902207A (zh) * 2009-05-29 2010-12-01 瑞萨电子株式会社 偏置电路、高功率放大器和便携信息终端
US20110007586A1 (en) * 2009-07-13 2011-01-13 Nec Electronics Corporation Memory interface control circuit
CN102195566A (zh) * 2011-02-01 2011-09-21 上海矽诺微电子有限公司 音频放大器的静态噪声消除电路
US20110255642A1 (en) * 2010-04-19 2011-10-20 Oki Semiconductor Co., Ltd. Receiving apparatus, and computer readable memory medium that stores a program

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3890767B2 (ja) 1998-09-22 2007-03-07 ヤマハ株式会社 補聴器等の耳装着用外来音処理装置
JP2003092537A (ja) * 2001-09-17 2003-03-28 Toa Corp ワイヤレスマイクロホンシステム
GB2446843B (en) 2006-06-30 2011-09-07 Wolfson Microelectronics Plc Amplifier circuit and methods of operation thereof
US8311243B2 (en) 2006-08-21 2012-11-13 Cirrus Logic, Inc. Energy-efficient consumer device audio power output stage
GB2447426B (en) 2006-12-22 2011-07-13 Wolfson Microelectronics Plc Charge pump circuit and methods of operation thereof
US8126158B2 (en) * 2007-05-10 2012-02-28 Texas Instruments Incorporated Reducing sound pressure of noise
JP2009021834A (ja) * 2007-07-12 2009-01-29 Victor Co Of Japan Ltd 音量調整装置
WO2009149584A1 (en) 2008-06-12 2009-12-17 Zoran Corporation Method and apparatus for controlling audio input amplitude
US7808324B1 (en) 2009-03-17 2010-10-05 Cirrus Logic, Inc. Operating environment and process position selected charge-pump operating mode in an audio power amplifier integrated circuit
TWI418139B (zh) 2009-10-09 2013-12-01 Richtek Technology Corp 高效率ｇ類放大器及其控制方法
CN102075146B (zh) * 2009-10-20 2013-07-10 成都芯源系统有限公司 G类音频放大系统及方法
US8582786B2 (en) * 2011-06-15 2013-11-12 Alpine Electronics, Inc. Automatic gain control of amplifier by dynamic suppressing and output control at multiple stages

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030215034A1 (en) * 1999-02-24 2003-11-20 Takatoshi Katsura Wireless terminal device
CN1909366A (zh) * 2001-02-16 2007-02-07 高通股份有限公司 直接变频接收机结构
US20080004041A1 (en) * 2006-06-30 2008-01-03 Samsung Electronics Co., Ltd. Method and system for confirming location of lost wireless terminal
WO2008118353A1 (en) * 2007-03-23 2008-10-02 Beckman Coulter, Inc. Multi-gain adaptive linear processing and gated digital system for use in flow cytometry
WO2008146189A2 (en) * 2007-05-30 2008-12-04 Nxp B.V. Audio signal amplification
US20090257599A1 (en) * 2008-04-10 2009-10-15 Bang & Olufsen Icepower A/S Thermal protection of electro dynamic transducers used in loudspeaker systems
CN101902207A (zh) * 2009-05-29 2010-12-01 瑞萨电子株式会社 偏置电路、高功率放大器和便携信息终端
US20110007586A1 (en) * 2009-07-13 2011-01-13 Nec Electronics Corporation Memory interface control circuit
US20110255642A1 (en) * 2010-04-19 2011-10-20 Oki Semiconductor Co., Ltd. Receiving apparatus, and computer readable memory medium that stores a program
CN102195566A (zh) * 2011-02-01 2011-09-21 上海矽诺微电子有限公司 音频放大器的静态噪声消除电路

Also Published As

Publication number Publication date
CN104081664A (zh) 2014-10-01
JP6141880B2 (ja) 2017-06-07
US9065413B2 (en) 2015-06-23
JP2015510722A (ja) 2015-04-09
WO2013112846A1 (en) 2013-08-01
US20130188808A1 (en) 2013-07-25

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