AU2001275382A1 - Ringback detection circuit - Google Patents

Ringback detection circuit

Info

Publication number
AU2001275382A1
AU2001275382A1 AU2001275382A AU7538201A AU2001275382A1 AU 2001275382 A1 AU2001275382 A1 AU 2001275382A1 AU 2001275382 A AU2001275382 A AU 2001275382A AU 7538201 A AU7538201 A AU 7538201A AU 2001275382 A1 AU2001275382 A1 AU 2001275382A1
Authority
AU
Australia
Prior art keywords
detection circuit
ringback detection
ringback
circuit
detection
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.)
Abandoned
Application number
AU2001275382A
Inventor
Manuel Rosendo Arana-Manzano
Eric Douglas Romesburg
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.)
Ericsson Inc
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Publication of AU2001275382A1 publication Critical patent/AU2001275382A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
AU2001275382A 2000-06-30 2001-06-07 Ringback detection circuit Abandoned AU2001275382A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/608,051 US7085370B1 (en) 2000-06-30 2000-06-30 Ringback detection circuit
US09608051 2000-06-30
PCT/US2001/018521 WO2002003376A2 (en) 2000-06-30 2001-06-07 Ringback detection circuit

Publications (1)

Publication Number Publication Date
AU2001275382A1 true AU2001275382A1 (en) 2002-01-14

Family

ID=24434816

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001275382A Abandoned AU2001275382A1 (en) 2000-06-30 2001-06-07 Ringback detection circuit

Country Status (3)

Country Link
US (1) US7085370B1 (en)
AU (1) AU2001275382A1 (en)
WO (1) WO2002003376A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040001518A1 (en) * 2002-06-28 2004-01-01 Siemens Information System and method for emulating ringback transparently
US8705727B2 (en) * 2005-07-26 2014-04-22 Livewire Mobile, Inc. Methods and apparatus for enhancing ringback tone quality during telephone communications
US8295475B2 (en) * 2006-01-13 2012-10-23 Microsoft Corporation Selective glitch detection, clock drift compensation, and anti-clipping in audio echo cancellation
US7773743B2 (en) 2006-04-28 2010-08-10 Microsoft Corporation Integration of a microphone array with acoustic echo cancellation and residual echo suppression
US7831035B2 (en) * 2006-04-28 2010-11-09 Microsoft Corporation Integration of a microphone array with acoustic echo cancellation and center clipping
CN101159891B (en) 2007-08-17 2010-09-08 华为技术有限公司 Voice activation detection control method and controll equipment thereof
US20110129079A1 (en) * 2007-10-25 2011-06-02 Grant Simonds Ringback tone monitoring apparatus and method
US8380253B2 (en) 2008-02-15 2013-02-19 Microsoft Corporation Voice switching for voice communication on computers
US8369251B2 (en) * 2008-06-20 2013-02-05 Microsoft Corporation Timestamp quality assessment for assuring acoustic echo canceller operability
EP2405587B1 (en) * 2010-07-05 2013-03-27 Alcatel Lucent Echo canceller
CN107111961A (en) 2014-12-31 2017-08-29 诺瓦交谈有限责任公司 The method and system treated for online and long-range disfluency

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894200A (en) * 1973-10-10 1975-07-08 Communications Satellite Corp Adaptive echo canceller with digital center clipping
US4696031A (en) * 1985-12-31 1987-09-22 Wang Laboratories, Inc. Signal detection and discrimination using waveform peak factor
US5539812A (en) * 1992-07-29 1996-07-23 Kitchin; Dwight W. Method and apparatus for detecting an attempted three-way conference call on a remote telephone
US5483579A (en) 1993-02-25 1996-01-09 Digital Acoustics, Inc. Voice recognition dialing system
US5450484A (en) * 1993-03-01 1995-09-12 Dialogic Corporation Voice detection
US5390244A (en) * 1993-09-10 1995-02-14 Polycom, Inc. Method and apparatus for periodic signal detection
FI110826B (en) * 1995-06-08 2003-03-31 Nokia Corp Eliminating an acoustic echo in a digital mobile communication system
US5689556A (en) 1995-09-15 1997-11-18 Hughes Electronics Method of detecting narrow-band signals in an echo canceller
US5809463A (en) * 1995-09-15 1998-09-15 Hughes Electronics Method of detecting double talk in an echo canceller
US5649012A (en) * 1995-09-15 1997-07-15 Hughes Electronics Method for synthesizing an echo path in an echo canceller
US5588053A (en) * 1995-11-29 1996-12-24 Advanced Micro Devices DTMF detector system and method which performs static and dynamic thresholding

Also Published As

Publication number Publication date
WO2002003376A3 (en) 2002-05-23
WO2002003376A2 (en) 2002-01-10
US7085370B1 (en) 2006-08-01

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