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KR970703071A - Method and apparatus for reducing residual far-end echo in voice communications network - Google Patents

Method and apparatus for reducing residual far-end echo in voice communications network

Info

Publication number
KR970703071A
KR970703071A KR1019960706305A KR19960706305A KR970703071A KR 970703071 A KR970703071 A KR 970703071A KR 1019960706305 A KR1019960706305 A KR 1019960706305A KR 19960706305 A KR19960706305 A KR 19960706305A KR 970703071 A KR970703071 A KR 970703071A
Authority
KR
South Korea
Prior art keywords
communications network
voice communications
reducing residual
end echo
residual far
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
KR1019960706305A
Other languages
Korean (ko)
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
Priority claimed from US08/398,272 external-priority patent/US5587998A/en
Application filed filed Critical
Publication of KR970703071A publication Critical patent/KR970703071A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
KR1019960706305A 1995-03-03 1996-11-04 Method and apparatus for reducing residual far-end echo in voice communications network Abandoned KR970703071A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/398,272 US5587998A (en) 1995-03-03 1995-03-03 Method and apparatus for reducing residual far-end echo in voice communication networks
PCT/US1996/000391 WO1996027951A1 (en) 1995-03-03 1996-01-11 Method and apparatus for reducing residual far-end echo in voice communication networks

Publications (1)

Publication Number Publication Date
KR970703071A true KR970703071A (en) 1997-06-10

Family

ID=23574727

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960706305A Abandoned KR970703071A (en) 1995-03-03 1996-11-04 Method and apparatus for reducing residual far-end echo in voice communications network

Country Status (4)

Country Link
KR (1) KR970703071A (en)
IL (1) IL117329A (en)
PE (1) PE46097A1 (en)
TW (1) TW281833B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI703561B (en) * 2018-09-25 2020-09-01 塞席爾商元鼎音訊股份有限公司 Sound cancellation method and electronic device performing the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61161034A (en) * 1985-01-09 1986-07-21 Matsushita Electric Ind Co Ltd Echo cancelling device
JPS62116025A (en) * 1985-11-15 1987-05-27 Nippon Telegr & Teleph Corp <Ntt> Echo canceler
US4736414A (en) * 1983-10-12 1988-04-05 Cselt Centro Studi E Laboratori Telecomunicazioni Spa Method of and device for the digital cancellation of the echo generated in connections with time-varying characteristics
US4947425A (en) * 1989-10-27 1990-08-07 At&T Bell Laboratories Echo measurement arrangement
JPH03127518A (en) * 1989-10-13 1991-05-30 Matsushita Electric Ind Co Ltd Echo canceller
JPH06197050A (en) * 1992-11-10 1994-07-15 Nec Corp Multi-channel echo eliminating device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736414A (en) * 1983-10-12 1988-04-05 Cselt Centro Studi E Laboratori Telecomunicazioni Spa Method of and device for the digital cancellation of the echo generated in connections with time-varying characteristics
JPS61161034A (en) * 1985-01-09 1986-07-21 Matsushita Electric Ind Co Ltd Echo cancelling device
JPS62116025A (en) * 1985-11-15 1987-05-27 Nippon Telegr & Teleph Corp <Ntt> Echo canceler
JPH03127518A (en) * 1989-10-13 1991-05-30 Matsushita Electric Ind Co Ltd Echo canceller
US4947425A (en) * 1989-10-27 1990-08-07 At&T Bell Laboratories Echo measurement arrangement
JPH06197050A (en) * 1992-11-10 1994-07-15 Nec Corp Multi-channel echo eliminating device

Also Published As

Publication number Publication date
PE46097A1 (en) 1997-12-03
MX9605354A (en) 1998-05-31
IL117329A0 (en) 1996-07-23
TW281833B (en) 1996-07-21
IL117329A (en) 1999-08-17

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Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 19961104

Patent event code: PA01051R01D

Comment text: International Patent Application

N231 Notification of change of applicant
PN2301 Change of applicant

Patent event date: 19970205

Comment text: Notification of Change of Applicant

Patent event code: PN23011R01D

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 20001026

Comment text: Request for Examination of Application

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 20021118

NORF Unpaid initial registration fee
PC1904 Unpaid initial registration fee