ID20795A - Penghilang gema - Google Patents

Penghilang gema

Info

Publication number
ID20795A
ID20795A IDP981197A ID981197A ID20795A ID 20795 A ID20795 A ID 20795A ID P981197 A IDP981197 A ID P981197A ID 981197 A ID981197 A ID 981197A ID 20795 A ID20795 A ID 20795A
Authority
ID
Indonesia
Prior art keywords
removers
earthquake
earthquake removers
Prior art date
Application number
IDP981197A
Other languages
English (en)
Inventor
Toshiya Suganuma
Takeshi Kawanobe
Original Assignee
Matsushita Electric Ind Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=17260301&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ID20795(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of ID20795A publication Critical patent/ID20795A/id

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)
IDP981197A 1997-09-04 1998-09-04 Penghilang gema ID20795A (id)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25410597A JP3710606B2 (ja) 1997-09-04 1997-09-04 エコーキャンセラ

Publications (1)

Publication Number Publication Date
ID20795A true ID20795A (id) 1999-03-04

Family

ID=17260301

Family Applications (1)

Application Number Title Priority Date Filing Date
IDP981197A ID20795A (id) 1997-09-04 1998-09-04 Penghilang gema

Country Status (7)

Country Link
US (1) US6618479B1 (id)
EP (1) EP0901238B1 (id)
JP (1) JP3710606B2 (id)
CN (1) CN1213907A (id)
CA (1) CA2246757C (id)
DE (1) DE69830959T2 (id)
ID (1) ID20795A (id)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6351531B1 (en) * 2000-01-21 2002-02-26 Motorola, Inc. Method and system for controlling echo cancellation using zero echo path, ringing, and off-hook detection

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226973B2 (id) * 1973-01-19 1977-07-18
US4144417A (en) 1975-03-07 1979-03-13 Kokusai Denshin Denwa Kabushiki Kaisha Echo cancelling system
JPS56153850A (en) 1980-04-28 1981-11-28 Kokusai Denshin Denwa Co Ltd <Kdd> Echo control system
JPS6053336A (ja) * 1983-09-02 1985-03-27 Nec Corp 反響消去装置
JPH01218131A (ja) * 1988-02-25 1989-08-31 Nec Corp エコーキャンセラ制御システム
JP2520770B2 (ja) * 1990-07-06 1996-07-31 富士通株式会社 ハイブリッド回路
JPH0483429A (ja) * 1990-07-25 1992-03-17 Fujitsu Ltd 残留エコー抑圧方式
JP2814777B2 (ja) 1991-06-28 1998-10-27 松下電器産業株式会社 エコーキャンセラ制御方法
JP3147457B2 (ja) 1992-02-04 2001-03-19 松下電器産業株式会社 エコーキャンセラ制御法
WO1995031052A1 (fr) 1994-05-06 1995-11-16 Ntt Mobile Communications Network Inc. Compensateur d'echos et procede d'estimation de la trajectoire de l'echo
JP3395388B2 (ja) * 1994-08-16 2003-04-14 ソニー株式会社 信号適応処理装置及びエコー抑圧装置
US5606550A (en) * 1995-05-22 1997-02-25 Hughes Electronics Echo canceller and method for a voice network using low rate coding and digital speech interpolation transmission
JP3244416B2 (ja) 1995-11-18 2002-01-07 松下電器産業株式会社 エコーキャンセラ
JP3654470B2 (ja) * 1996-09-13 2005-06-02 日本電信電話株式会社 サブバンド多チャネル音声通信会議用反響消去方法
US5920834A (en) * 1997-01-31 1999-07-06 Qualcomm Incorporated Echo canceller with talk state determination to control speech processor functional elements in a digital telephone system

Also Published As

Publication number Publication date
DE69830959D1 (de) 2005-09-01
JPH1188922A (ja) 1999-03-30
CN1213907A (zh) 1999-04-14
EP0901238A3 (en) 1999-10-20
JP3710606B2 (ja) 2005-10-26
EP0901238B1 (en) 2005-07-27
EP0901238A2 (en) 1999-03-10
CA2246757C (en) 2001-08-07
US6618479B1 (en) 2003-09-09
DE69830959T2 (de) 2006-04-20
CA2246757A1 (en) 1999-03-04

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