BRPI0309262A2 - método, aparelho de transmissão de tom, e, sistema de transmissão. - Google Patents

método, aparelho de transmissão de tom, e, sistema de transmissão.

Info

Publication number
BRPI0309262A2
BRPI0309262A2 BRPI0309262A BR0309262A BRPI0309262A2 BR PI0309262 A2 BRPI0309262 A2 BR PI0309262A2 BR PI0309262 A BRPI0309262 A BR PI0309262A BR 0309262 A BR0309262 A BR 0309262A BR PI0309262 A2 BRPI0309262 A2 BR PI0309262A2
Authority
BR
Brazil
Prior art keywords
tone
transmission
transmission system
transmission apparatus
tone transmission
Prior art date
Application number
BRPI0309262A
Other languages
English (en)
Inventor
Eli Shoval
Leon Bialik
Mark Raifel
Original Assignee
Audiocodes Ltd
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 Audiocodes Ltd filed Critical Audiocodes Ltd
Publication of BRPI0309262A2 publication Critical patent/BRPI0309262A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/1295—Details of dual tone multiple frequency signalling
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
BRPI0309262A 2002-04-15 2003-04-14 método, aparelho de transmissão de tom, e, sistema de transmissão. BRPI0309262A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/122,077 US20030194082A1 (en) 2002-04-15 2002-04-15 Method and apparatus for transmitting signaling tones over a packet switched network
PCT/IL2003/000310 WO2003088628A2 (en) 2002-04-15 2003-04-14 Method and apparatus for transmitting signaling tones over a packet switched network

Publications (1)

Publication Number Publication Date
BRPI0309262A2 true BRPI0309262A2 (pt) 2016-11-16

Family

ID=28790481

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0309262A BRPI0309262A2 (pt) 2002-04-15 2003-04-14 método, aparelho de transmissão de tom, e, sistema de transmissão.

Country Status (8)

Country Link
US (2) US20030194082A1 (pt)
EP (1) EP1500252A4 (pt)
JP (1) JP2005522950A (pt)
CN (1) CN1663223A (pt)
AU (1) AU2003222414A1 (pt)
BR (1) BRPI0309262A2 (pt)
EA (1) EA006986B1 (pt)
WO (1) WO2003088628A2 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8392176B2 (en) * 2006-04-10 2013-03-05 Qualcomm Incorporated Processing of excitation in audio coding and decoding
US8428957B2 (en) 2007-08-24 2013-04-23 Qualcomm Incorporated Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands
US20090198500A1 (en) * 2007-08-24 2009-08-06 Qualcomm Incorporated Temporal masking in audio coding based on spectral dynamics in frequency sub-bands
GB2461890B (en) * 2008-07-16 2011-03-02 Tunstall Group Ltd Tone signalling
JP5239735B2 (ja) * 2008-10-22 2013-07-17 ソニー株式会社 データ通信装置、および通信データ制御方法
CN102044251B (zh) * 2009-10-13 2012-07-25 创杰科技股份有限公司 无线电语音数据传输系统的语音质量改善方法
GB201319687D0 (en) * 2013-11-07 2013-12-25 Microsoft Corp Call handling
US10312933B1 (en) * 2014-01-15 2019-06-04 Sprint Spectrum L.P. Chord modulation communication system
CN105184681B (zh) * 2015-09-29 2022-02-11 国网甘肃省电力公司 基于最近距离分群的大型光伏发电集群弃光电量评估法
GB201704489D0 (en) * 2017-03-21 2017-05-03 Semafone Ltd Telephone signal processing

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4398153A (en) * 1981-05-06 1983-08-09 The United States Of America As Represented By The Secretary Of The Army Harmonic generator
CA2171485C (en) * 1995-03-23 1999-10-12 Shrirang Jangi Dtmf tone passer in a voice communication system
US5889851A (en) * 1996-02-26 1999-03-30 Lucent Technologies Inc. DTMF signal detection/removal using adaptive filters
US6226303B1 (en) * 1997-03-06 2001-05-01 Natural Microsystems Corporation DTMF tone detection and suppression with application to computer telephony over packet switched networks
US6650662B1 (en) * 1997-12-12 2003-11-18 International Business Machines Corporation Method and system for transmitting a DTMF signal with compressed voice in a packet switching network
US6385192B1 (en) * 1998-03-24 2002-05-07 Siemens Information And Communication Networks, Inc. Method and apparatus for DTMF signaling on compressed voice networks
US6298055B1 (en) * 1998-10-26 2001-10-02 Cisco Technology, Inc. Early detection of in-band signals in a packet voice transmitter with reduced transmission delay
EP1121786A4 (en) 1999-08-12 2007-05-30 Telogy Networks Inc FAST DTMF IDENTIFICATION
US7039044B1 (en) * 1999-10-14 2006-05-02 Mindspeed Technologies, Inc. Method and apparatus for early detection of DTMF signals in voice transmissions over an IP network
EP1133155A1 (en) * 2000-03-08 2001-09-12 Brother Kogyo Kabushiki Kaisha Versatile communication device with a facsimile function and a telephone function
JP4122678B2 (ja) 2000-03-08 2008-07-23 ブラザー工業株式会社 電話装置
JP3614082B2 (ja) * 2000-04-12 2005-01-26 日本電気株式会社 通信網接続装置
US7035293B2 (en) * 2001-04-18 2006-04-25 Broadcom Corporation Tone relay

Also Published As

Publication number Publication date
WO2003088628A2 (en) 2003-10-23
CN1663223A (zh) 2005-08-31
US20030194082A1 (en) 2003-10-16
US20100020962A1 (en) 2010-01-28
WO2003088628A3 (en) 2003-12-31
EP1500252A2 (en) 2005-01-26
EA200401372A1 (ru) 2005-06-30
EP1500252A4 (en) 2005-07-13
US7949125B2 (en) 2011-05-24
AU2003222414A1 (en) 2003-10-27
JP2005522950A (ja) 2005-07-28
EA006986B1 (ru) 2006-06-30

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 9A, 10A, 11A, 12A E 13A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]