FR2806567B1 - Detecteur de tonalites multifrequences - Google Patents

Detecteur de tonalites multifrequences

Info

Publication number
FR2806567B1
FR2806567B1 FR0103595A FR0103595A FR2806567B1 FR 2806567 B1 FR2806567 B1 FR 2806567B1 FR 0103595 A FR0103595 A FR 0103595A FR 0103595 A FR0103595 A FR 0103595A FR 2806567 B1 FR2806567 B1 FR 2806567B1
Authority
FR
France
Prior art keywords
frequency tone
tone detector
detector
frequency
tone
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
Application number
FR0103595A
Other languages
English (en)
Other versions
FR2806567A1 (fr
Inventor
Dieter Schulz
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.)
Microsemi Semiconductor ULC
Original Assignee
Mitel Corp
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 Mitel Corp filed Critical Mitel Corp
Publication of FR2806567A1 publication Critical patent/FR2806567A1/fr
Application granted granted Critical
Publication of FR2806567B1 publication Critical patent/FR2806567B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04Q1/46—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies comprising means for distinguishing between a signalling current of predetermined frequency and a complex current containing that frequency, e.g. speech current

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR0103595A 2000-03-17 2001-03-16 Detecteur de tonalites multifrequences Expired - Fee Related FR2806567B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0006576A GB2360420B (en) 2000-03-17 2000-03-17 Multi-frequency tone detector

Publications (2)

Publication Number Publication Date
FR2806567A1 FR2806567A1 (fr) 2001-09-21
FR2806567B1 true FR2806567B1 (fr) 2004-07-09

Family

ID=9887910

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0103595A Expired - Fee Related FR2806567B1 (fr) 2000-03-17 2001-03-16 Detecteur de tonalites multifrequences

Country Status (5)

Country Link
US (2) US7010117B2 (fr)
CN (1) CN1185849C (fr)
CA (1) CA2342467C (fr)
FR (1) FR2806567B1 (fr)
GB (1) GB2360420B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2360420B (en) 2000-03-17 2004-02-18 Mitel Corp Multi-frequency tone detector
TWI281982B (en) * 2002-08-28 2007-06-01 Freescale Semiconductor Inc Tone detector and method therefor
US7844048B2 (en) * 2004-03-08 2010-11-30 Freescale Semiconductor, Inc. Selective tone event detector and method therefor
EP2490494B1 (fr) * 2004-10-20 2016-05-11 Qualcomm Incorporated Fonctionnement sur bande a frequences multiples dans des reseaux sans fil
GB0504552D0 (en) * 2005-03-04 2005-04-13 Ttp Communications Ltd Signal detection techniques
US9208797B2 (en) * 2008-04-18 2015-12-08 General Motors Llc Tone detection for signals sent through a vocoder
ATE541410T1 (de) * 2008-06-30 2012-01-15 Freescale Semiconductor Inc Mehrfrequenztondetektor
CN101383982B (zh) * 2008-10-21 2011-11-23 松翰科技股份有限公司 适用于自动控制装置的音调检测方法及音调检测装置
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
US10771167B2 (en) 2017-11-02 2020-09-08 Covidien Lp System and methods for mitigating interferences between electrosurgical systems
CN109818685B (zh) * 2019-04-19 2019-07-19 翱捷科技(上海)有限公司 一种dtmf信号检测装置及方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US36260A (en) * 1862-08-19 Improvement in joints for ribs of umbrellas and parasols
US4231103A (en) * 1979-02-12 1980-10-28 The United States Of America As Represented By The Secretary Of The Navy Fast Fourier transform spectral analysis system employing adaptive window
CA1289281C (fr) * 1988-05-05 1991-09-17 Jerry Stroobach Detecteur de tonalites dtmf numeriques
EP0440028A3 (en) 1990-01-29 1992-07-22 Dialogic Corporation Multifrequency tone signal detector
US5325427A (en) 1992-03-23 1994-06-28 At&T Bell Laboratories Apparatus and robust method for detecting tones
JP2851974B2 (ja) * 1992-08-07 1999-01-27 シャープ株式会社 Ｄｔｍｆ信号判定回路
US5353346A (en) * 1992-12-22 1994-10-04 Mpr Teltech, Limited Multi-frequency signal detector and classifier
US5408529A (en) * 1993-06-02 1995-04-18 Motorola, Inc. Dual tone detector operable in the presence of speech or background noise and method therefor
US5588053A (en) 1995-11-29 1996-12-24 Advanced Micro Devices DTMF detector system and method which performs static and dynamic thresholding
US5644634A (en) * 1995-11-29 1997-07-01 Advanced Micro Devices System and method for dual tone multifrequency detection using variable frame widths
US6370244B1 (en) * 1998-04-03 2002-04-09 Board Of Regents Of The University Of Texas System Efficient digital ITU-compliant zero-buffering DTMF detection using the non-uniform discrete fourier transform
GB2360420B (en) 2000-03-17 2004-02-18 Mitel Corp Multi-frequency tone detector

Also Published As

Publication number Publication date
GB0006576D0 (en) 2000-05-10
CA2342467A1 (fr) 2001-09-17
CN1185849C (zh) 2005-01-19
US7010117B2 (en) 2006-03-07
US20010036260A1 (en) 2001-11-01
CA2342467C (fr) 2004-05-25
GB2360420B (en) 2004-02-18
FR2806567A1 (fr) 2001-09-21
CN1322081A (zh) 2001-11-14
US20060098806A1 (en) 2006-05-11
GB2360420A (en) 2001-09-19

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Legal Events

Date Code Title Description
CD Change of name or company name
TP Transmission of property
ST Notification of lapse

Effective date: 20091130