CN101361355A - 音频事件检测器及其方法 - Google Patents

音频事件检测器及其方法 Download PDF

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Publication number
CN101361355A
CN101361355A CNA2005800074339A CN200580007433A CN101361355A CN 101361355 A CN101361355 A CN 101361355A CN A2005800074339 A CNA2005800074339 A CN A2005800074339A CN 200580007433 A CN200580007433 A CN 200580007433A CN 101361355 A CN101361355 A CN 101361355A
Authority
CN
China
Prior art keywords
audio
signal
frequency
audio frequency
input signal
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.)
Pending
Application number
CNA2005800074339A
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English (en)
Chinese (zh)
Inventor
卢西奥·F·C·佩索阿
阿赫桑·U·阿齐兹
苏文武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NXP USA Inc
Original Assignee
Freescale Semiconductor Inc
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 Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Publication of CN101361355A publication Critical patent/CN101361355A/zh
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/02—Calling substations, e.g. by ringing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/066—Telephone sets adapted for data transmision

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)
  • Facsimiles In General (AREA)
  • Facsimile Transmission Control (AREA)
CNA2005800074339A 2004-03-08 2005-01-21 音频事件检测器及其方法 Pending CN101361355A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/795,700 US7844048B2 (en) 2004-03-08 2004-03-08 Selective tone event detector and method therefor
US10/795,700 2004-03-08

Publications (1)

Publication Number Publication Date
CN101361355A true CN101361355A (zh) 2009-02-04

Family

ID=34912508

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2005800074339A Pending CN101361355A (zh) 2004-03-08 2005-01-21 音频事件检测器及其方法

Country Status (6)

Country Link
US (1) US7844048B2 (enExample)
EP (1) EP1726153A2 (enExample)
JP (1) JP2007535840A (enExample)
KR (1) KR20060132926A (enExample)
CN (1) CN101361355A (enExample)
WO (1) WO2005094397A2 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103139121A (zh) * 2011-12-02 2013-06-05 三星电子株式会社 用于检测包络的方法和设备
CN104105047A (zh) * 2013-04-10 2014-10-15 名硕电脑(苏州)有限公司 音频检测装置及方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7388954B2 (en) * 2002-06-24 2008-06-17 Freescale Semiconductor, Inc. Method and apparatus for tone indication
EP1667304B2 (en) * 2004-12-02 2021-09-08 ABB Power Grids Switzerland AG Transmission of protection commands to a remote tripping device
CN100525476C (zh) * 2005-06-29 2009-08-05 华为技术有限公司 媒体网关控制协议呼叫中的内容传输方法
US8483384B2 (en) * 2006-03-06 2013-07-09 Freescale Semiconductor, Inc. Enhanced tone detector including adaptive multi-bandpass filter for tone detection and enhancement
US8170198B2 (en) * 2008-04-22 2012-05-01 Icom Incorporated Tone signal detector, tone signal detection method, and computer readable recording medium
ATE541410T1 (de) * 2008-06-30 2012-01-15 Freescale Semiconductor Inc Mehrfrequenztondetektor
TWI429225B (zh) * 2009-11-16 2014-03-01 Mstar Semiconductor Inc 目標訊號判斷方法及其裝置
JP5605158B2 (ja) * 2010-10-19 2014-10-15 アイコム株式会社 Ｃｔｃｓｓ用のトーン信号回路およびそれを用いる無線受信機
US8891743B2 (en) * 2011-10-04 2014-11-18 Cisco Technology, Inc. Gain control enhancement for modulated communications
US9569439B2 (en) 2011-10-31 2017-02-14 Elwha Llc Context-sensitive query enrichment
US9047856B2 (en) * 2012-07-26 2015-06-02 Nuance Communications, Inc. Method and apparatus for tone detection
CN103888985A (zh) * 2012-12-21 2014-06-25 华为技术有限公司 信息传输方法、媒体网关和基站控制器
US20170019136A1 (en) * 2015-07-16 2017-01-19 LGS Innovations LLC Feed-forward self-interference cancellation

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07212802A (ja) 1994-01-26 1995-08-11 Japan Radio Co Ltd Ｄｔｍｆ信号検出装置及び方法
CA2149163C (en) * 1994-06-28 1999-01-26 Jeffrey Wayne Daugherty Detection of tones while minimizing incorrect identification of other sounds as tones
US6393124B1 (en) * 1997-04-15 2002-05-21 Virata Corporation CPE alert signal tone detector
US6055310A (en) * 1997-12-17 2000-04-25 Nortel Networks Corporation Phase reversal tone detector using DSP
US6587559B1 (en) * 1998-09-23 2003-07-01 Legerity Inc. Cross-frame dual tone multifrequency detector
AU2443399A (en) 1998-10-30 2000-06-05 Northern Telecom Limited Method and apparatus for detecting signalling tones
US7423983B1 (en) * 1999-09-20 2008-09-09 Broadcom Corporation Voice and data exchange over a packet based network
GB2357216B (en) * 1999-12-11 2004-05-12 Mitel Corp Method and apparatus for detecting dual tone alerting signal in telephone systems
US6650627B1 (en) * 1999-12-16 2003-11-18 Avaya Technology Corp. Tone detection in communication networks
GB2360420B (en) * 2000-03-17 2004-02-18 Mitel Corp Multi-frequency tone detector
US7003093B2 (en) * 2000-09-08 2006-02-21 Intel Corporation Tone detection for integrated telecommunications processing
US6748059B2 (en) * 2001-10-23 2004-06-08 Avaya Technology Corp. Apparatus and method for unified tone detection
US7054435B2 (en) * 2002-04-05 2006-05-30 Avaya Technology Corp. Apparatus and method for determining a minimal time bound for performing tone detection
US7016488B2 (en) * 2002-06-24 2006-03-21 Freescale Semiconductor, Inc. Method and apparatus for non-linear processing of an audio signal
US7388954B2 (en) * 2002-06-24 2008-06-17 Freescale Semiconductor, Inc. Method and apparatus for tone indication
EP1395065B1 (en) 2002-08-28 2007-01-24 Freescale Semiconductor, Inc. Tone detector and method therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103139121A (zh) * 2011-12-02 2013-06-05 三星电子株式会社 用于检测包络的方法和设备
CN103139121B (zh) * 2011-12-02 2017-10-24 三星电子株式会社 用于检测包络的方法和设备
CN104105047A (zh) * 2013-04-10 2014-10-15 名硕电脑(苏州)有限公司 音频检测装置及方法

Also Published As

Publication number Publication date
WO2005094397A3 (en) 2008-09-04
US20050195967A1 (en) 2005-09-08
US7844048B2 (en) 2010-11-30
JP2007535840A (ja) 2007-12-06
WO2005094397A2 (en) 2005-10-13
KR20060132926A (ko) 2006-12-22
EP1726153A2 (en) 2006-11-29

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Open date: 20090204