CN1879446B - 包括整体多电平量化器和单比特转换装置的麦克风 - Google Patents
包括整体多电平量化器和单比特转换装置的麦克风 Download PDFInfo
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- CN1879446B CN1879446B CN2004800332228A CN200480033222A CN1879446B CN 1879446 B CN1879446 B CN 1879446B CN 2004800332228 A CN2004800332228 A CN 2004800332228A CN 200480033222 A CN200480033222 A CN 200480033222A CN 1879446 B CN1879446 B CN 1879446B
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Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/04—Structural association of microphone with electric circuitry therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3004—Digital delta-sigma modulation
- H03M7/3015—Structural details of digital delta-sigma modulators
- H03M7/3031—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path
- H03M7/3033—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs
- H03M7/3035—Structural details of digital delta-sigma modulators characterised by the order of the loop filter, e.g. having a first order loop filter in the feedforward path the modulator having a higher order loop filter in the feedforward path, e.g. with distributed feedforward inputs with provisions for rendering the modulator inherently stable, e.g. by restricting the swing within the loop, by removing part of the zeroes using local feedback loops, by positioning zeroes outside the unit circle causing the modulator to operate in a chaotic regime
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (18)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52503903P | 2003-11-24 | 2003-11-24 | |
US60/525,039 | 2003-11-24 | ||
PCT/DK2004/000680 WO2005009072A2 (en) | 2003-11-24 | 2004-10-08 | Microphone comprising integral multi-level quantizer and single-bit conversion means |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1879446A CN1879446A (zh) | 2006-12-13 |
CN1879446B true CN1879446B (zh) | 2011-02-16 |
Family
ID=34079506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2004800332228A Expired - Fee Related CN1879446B (zh) | 2003-11-24 | 2004-10-08 | 包括整体多电平量化器和单比特转换装置的麦克风 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7630504B2 (zh) |
EP (1) | EP1690437B1 (zh) |
CN (1) | CN1879446B (zh) |
AT (1) | ATE495625T1 (zh) |
DE (1) | DE602004031044D1 (zh) |
WO (1) | WO2005009072A2 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107221335A (zh) * | 2017-05-27 | 2017-09-29 | 大连理工大学 | 一种监控音频信号的数字化装置和方法 |
Families Citing this family (53)
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WO2005009072A2 (en) * | 2003-11-24 | 2005-01-27 | Sonion A/S | Microphone comprising integral multi-level quantizer and single-bit conversion means |
US9774961B2 (en) | 2005-06-05 | 2017-09-26 | Starkey Laboratories, Inc. | Hearing assistance device ear-to-ear communication using an intermediate device |
US8041066B2 (en) | 2007-01-03 | 2011-10-18 | Starkey Laboratories, Inc. | Wireless system for hearing communication devices providing wireless stereo reception modes |
US8170237B2 (en) * | 2005-07-19 | 2012-05-01 | Audioasics A/S | Programmable microphone |
DE202006002942U1 (de) * | 2006-02-22 | 2007-07-05 | Brauner, Dirk | Adapter für Mikrofone |
GB2446966B (en) | 2006-04-12 | 2010-07-07 | Wolfson Microelectronics Plc | Digital circuit arrangements for ambient noise-reduction |
WO2007144808A2 (en) * | 2006-06-15 | 2007-12-21 | Nxp B.V. | A method of providing a clock frequency for a processor |
US8208642B2 (en) | 2006-07-10 | 2012-06-26 | Starkey Laboratories, Inc. | Method and apparatus for a binaural hearing assistance system using monaural audio signals |
US8542850B2 (en) * | 2007-09-12 | 2013-09-24 | Epcos Pte Ltd | Miniature microphone assembly with hydrophobic surface coating |
DE102007058951B4 (de) * | 2007-12-07 | 2020-03-26 | Snaptrack, Inc. | MEMS Package |
US7889108B2 (en) * | 2008-05-09 | 2011-02-15 | Asahi Kasei Microdevices Corporation | Hybrid delta-sigma ADC |
US8411603B2 (en) * | 2008-06-19 | 2013-04-02 | Broadcom Corporation | Method and system for dual digital microphone processing in an audio CODEC |
CN102239705B (zh) * | 2008-12-05 | 2015-02-25 | 应美盛股份有限公司 | 风噪声检测方法和系统 |
KR101201198B1 (ko) * | 2008-12-16 | 2012-11-15 | 한국전자통신연구원 | 신호를 증폭하는 장치 및 방법, 이를 이용한 무선 송신 장치 |
US8345888B2 (en) * | 2009-04-28 | 2013-01-01 | Bose Corporation | Digital high frequency phase compensation |
US8085946B2 (en) * | 2009-04-28 | 2011-12-27 | Bose Corporation | ANR analysis side-chain data support |
CN101924525B (zh) * | 2009-06-11 | 2016-06-22 | 应美盛股份有限公司 | 高性能音频放大电路 |
US9083288B2 (en) * | 2009-06-11 | 2015-07-14 | Invensense, Inc. | High level capable audio amplification circuit |
US8737653B2 (en) | 2009-12-30 | 2014-05-27 | Starkey Laboratories, Inc. | Noise reduction system for hearing assistance devices |
DE102010006132B4 (de) | 2010-01-29 | 2013-05-08 | Epcos Ag | Miniaturisiertes elektrisches Bauelement mit einem Stapel aus einem MEMS und einem ASIC |
US20130129117A1 (en) * | 2011-11-21 | 2013-05-23 | Henrik Thomsen | Audio amplification circuit |
CN103138687B (zh) * | 2011-11-22 | 2017-04-12 | 应美盛股份有限公司 | 能处理高电平的音频放大电路中的失真抑制 |
EP2608569B1 (en) * | 2011-12-22 | 2014-07-23 | ST-Ericsson SA | Digital microphone device with extended dynamic range |
US9467774B2 (en) | 2012-02-10 | 2016-10-11 | Infineon Technologies Ag | System and method for a PCM interface for a capacitive signal source |
US9673767B2 (en) * | 2012-08-10 | 2017-06-06 | Tdk Corporation | MEMS microphone and method of operating the MEMS microphone |
US9374646B2 (en) * | 2012-08-31 | 2016-06-21 | Starkey Laboratories, Inc. | Binaural enhancement of tone language for hearing assistance devices |
EP3166331A1 (en) | 2013-04-09 | 2017-05-10 | Cirrus Logic, Inc. | Systems and methods for compressing a digital signal in a digital microphone system |
KR20160010606A (ko) * | 2013-05-23 | 2016-01-27 | 노우레스 일렉트로닉스, 엘엘시 | Vad 탐지 마이크로폰 및 그 마이크로폰을 동작시키는 방법 |
US9711166B2 (en) | 2013-05-23 | 2017-07-18 | Knowles Electronics, Llc | Decimation synchronization in a microphone |
US20180317019A1 (en) | 2013-05-23 | 2018-11-01 | Knowles Electronics, Llc | Acoustic activity detecting microphone |
US10028054B2 (en) * | 2013-10-21 | 2018-07-17 | Knowles Electronics, Llc | Apparatus and method for frequency detection |
US10020008B2 (en) | 2013-05-23 | 2018-07-10 | Knowles Electronics, Llc | Microphone and corresponding digital interface |
CN104348484B (zh) * | 2013-07-31 | 2018-08-21 | 钰太芯微电子科技(上海)有限公司 | 一种用于数字麦克风的连续时间多比特模数转换器 |
US9502028B2 (en) | 2013-10-18 | 2016-11-22 | Knowles Electronics, Llc | Acoustic activity detection apparatus and method |
US9147397B2 (en) | 2013-10-29 | 2015-09-29 | Knowles Electronics, Llc | VAD detection apparatus and method of operating the same |
US10003379B2 (en) | 2014-05-06 | 2018-06-19 | Starkey Laboratories, Inc. | Wireless communication with probing bandwidth |
US10812900B2 (en) | 2014-06-02 | 2020-10-20 | Invensense, Inc. | Smart sensor for always-on operation |
US9626981B2 (en) | 2014-06-25 | 2017-04-18 | Cirrus Logic, Inc. | Systems and methods for compressing a digital signal |
US10045140B2 (en) | 2015-01-07 | 2018-08-07 | Knowles Electronics, Llc | Utilizing digital microphones for low power keyword detection and noise suppression |
WO2016118480A1 (en) | 2015-01-21 | 2016-07-28 | Knowles Electronics, Llc | Low power voice trigger for acoustic apparatus and method |
US10121472B2 (en) | 2015-02-13 | 2018-11-06 | Knowles Electronics, Llc | Audio buffer catch-up apparatus and method with two microphones |
CN104796145A (zh) * | 2015-04-23 | 2015-07-22 | 西安电子科技大学 | 一种高精度低失真数模转换器 |
US9478234B1 (en) | 2015-07-13 | 2016-10-25 | Knowles Electronics, Llc | Microphone apparatus and method with catch-up buffer |
US9894437B2 (en) * | 2016-02-09 | 2018-02-13 | Knowles Electronics, Llc | Microphone assembly with pulse density modulated signal |
US10281485B2 (en) * | 2016-07-29 | 2019-05-07 | Invensense, Inc. | Multi-path signal processing for microelectromechanical systems (MEMS) sensors |
JP6787158B2 (ja) * | 2017-01-31 | 2020-11-18 | 株式会社富士通ゼネラル | モータ制御装置 |
US11108988B2 (en) * | 2017-07-03 | 2021-08-31 | Sony Semiconductor Solutions Corporation | Transmitter and transmission method and receiver and reception method |
US10348326B2 (en) * | 2017-10-23 | 2019-07-09 | Infineon Technologies Ag | Digital silicon microphone with interpolation |
US11616501B2 (en) * | 2017-10-28 | 2023-03-28 | Solos Technology Limited | Programmable fractional time delay in digitally oversampled microphone systems, circuits, and methods |
US11637546B2 (en) | 2018-12-14 | 2023-04-25 | Synaptics Incorporated | Pulse density modulation systems and methods |
CN115088034A (zh) * | 2020-02-20 | 2022-09-20 | 思睿逻辑国际半导体有限公司 | 具有数字麦克风的音频系统 |
US11683624B1 (en) * | 2020-05-12 | 2023-06-20 | Qualcomm Technologies, Inc. | Transducer with analog and digital modulators |
US11139820B1 (en) * | 2020-07-17 | 2021-10-05 | Infineon Technologies Ag | Efficient digital gain implementation in digital microphones |
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US5051799A (en) * | 1989-02-17 | 1991-09-24 | Paul Jon D | Digital output transducer |
EP0766494B1 (en) * | 1995-09-29 | 2002-08-14 | STMicroelectronics S.r.l. | Digital microphonic device |
DE19606261C2 (de) * | 1996-02-06 | 1998-04-09 | Stage Tec Entwicklungsgesellsc | Mikrofon mit zugeortnetem Verstärker |
US5769848A (en) * | 1996-05-14 | 1998-06-23 | Wattanasirichaigoon; Somkiat | Endoscopic instrument |
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US6449370B1 (en) * | 1998-02-16 | 2002-09-10 | Matsushita Electric Industrial Co., Ltd. | Digital electro-acoustic transducer |
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US6326912B1 (en) * | 1999-09-24 | 2001-12-04 | Akm Semiconductor, Inc. | Analog-to-digital conversion using a multi-bit analog delta-sigma modulator combined with a one-bit digital delta-sigma modulator |
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EP1493303B1 (en) | 2002-04-10 | 2007-08-22 | Sonion A/S | Microphone assembly with auxiliary analog input |
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WO2005009072A2 (en) * | 2003-11-24 | 2005-01-27 | Sonion A/S | Microphone comprising integral multi-level quantizer and single-bit conversion means |
-
2004
- 2004-10-08 WO PCT/DK2004/000680 patent/WO2005009072A2/en not_active Application Discontinuation
- 2004-10-08 DE DE602004031044T patent/DE602004031044D1/de active Active
- 2004-10-08 AT AT04762899T patent/ATE495625T1/de not_active IP Right Cessation
- 2004-10-08 EP EP04762899A patent/EP1690437B1/en active Active
- 2004-10-08 CN CN2004800332228A patent/CN1879446B/zh not_active Expired - Fee Related
- 2004-10-08 US US10/580,505 patent/US7630504B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107221335A (zh) * | 2017-05-27 | 2017-09-29 | 大连理工大学 | 一种监控音频信号的数字化装置和方法 |
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 |
Also Published As
Publication number | Publication date |
---|---|
ATE495625T1 (de) | 2011-01-15 |
EP1690437A2 (en) | 2006-08-16 |
WO2005009072A3 (en) | 2005-03-24 |
US7630504B2 (en) | 2009-12-08 |
CN1879446A (zh) | 2006-12-13 |
US20070127761A1 (en) | 2007-06-07 |
WO2005009072A2 (en) | 2005-01-27 |
DE602004031044D1 (de) | 2011-02-24 |
EP1690437B1 (en) | 2011-01-12 |
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