DE69512963D1 - Zur Restechounterdrückung mit hoher Geschwindigkeit fähiges adaptives Filter - Google Patents

Zur Restechounterdrückung mit hoher Geschwindigkeit fähiges adaptives Filter

Info

Publication number: DE69512963D1
Authority: DE; Germany
Prior art keywords: adaptive filter; filter capable; residual echo; echo suppression; speed residual
Prior art date: 1994-06-15
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 - Lifetime

Application number

DE69512963T

Other languages

English (en)

Other versions

DE69512963T2 (de

Inventor

Shigeji Ikeda

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.)

NEC Corp

Original Assignee

NEC 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.)

1994-06-15

Filing date

1995-06-14

Publication date

1999-12-02

1995-06-14 Application filed by NEC Corp filed Critical NEC Corp

1999-12-02 Publication of DE69512963D1 publication Critical patent/DE69512963D1/de

2000-04-13 Application granted granted Critical

2000-04-13 Publication of DE69512963T2 publication Critical patent/DE69512963T2/de

2015-06-15 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters

DE69512963T 1994-06-15 1995-06-14 Zur Restechounterdrückung mit hoher Geschwindigkeit fähiges adaptives Filter Expired - Lifetime DE69512963T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP6156518A JP2581458B2 (ja)	1994-06-15	1994-06-15	アダプティブフィルタの適応化方法及び装置

Publications (2)

Publication Number	Publication Date
DE69512963D1 true DE69512963D1 (de)	1999-12-02
DE69512963T2 DE69512963T2 (de)	2000-04-13

Family

ID=15629542

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69512963T Expired - Lifetime DE69512963T2 (de)	1994-06-15	1995-06-14	Zur Restechounterdrückung mit hoher Geschwindigkeit fähiges adaptives Filter

Country Status (6)

Country	Link
US (1)	US5636151A (de)
EP (1)	EP0688099B1 (de)
JP (1)	JP2581458B2 (de)
AU (1)	AU696803B2 (de)
CA (1)	CA2151779C (de)
DE (1)	DE69512963T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2850814B2 (ja) *	1995-12-15	1999-01-27	日本電気株式会社	適応フィルタによる未知システム同定の方法及び装置
JP2924762B2 (ja) *	1996-02-28	1999-07-26	日本電気株式会社	アダプティブフィルタ及びその適応化方法
JPH1028080A (ja) *	1996-07-12	1998-01-27	Nec Corp	低消費電力型通信用適応等化フィルタ
US6018755A (en)	1996-11-14	2000-01-25	Altocom, Inc.	Efficient implementation of an FIR filter on a general purpose processor
JP3185709B2 (ja) *	1997-05-19	2001-07-11	日本電気株式会社	アダプティブフィルタおよびその適応化方法
KR100249040B1 (ko) *	1997-06-28	2000-03-15	김영환	비대칭 주파수 응답 특성을 갖는 fir 필터
US6240180B1 (en) *	1997-11-14	2001-05-29	Tellabs Operations, Inc.	Echo canceller employing dual-H architecture having split adaptive gain settings
US6304598B1 (en) *	1998-08-28	2001-10-16	Broadcom Corporation	Apparatus for, and method of, reducing power dissipation in a communications system
JP3414336B2 (ja) *	1999-11-04	2003-06-09	日本電気株式会社	Ｆｉｒフィルタ、ランプアップ・ランプダウン回路
JP2001320308A (ja) *	2000-03-03	2001-11-16	Matsushita Electric Ind Co Ltd	適応等化装置および適応等化方法
DE10042930B4 (de)	2000-08-31	2005-07-14	Infineon Technologies Ag	Digitales Filter
US7353245B2 (en) *	2002-09-04	2008-04-01	Agere Systems Inc.	Adaptive filter coefficient determination
CN102780511B (zh) *	2012-07-30	2014-10-08	华为技术有限公司	回声抵消器、数据传输***和回声抵消的方法
US10177810B2 (en) *	2016-09-02	2019-01-08	Marvell World Trade Ltd.	Systems and methods for echo or interference cancellation power-saving management in a communication system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4805215A (en) *	1986-10-01	1989-02-14	Racal Data Communications Inc.	Adaptive echo canceller with sparse dynamically positioned taps
JP2540974B2 (ja) *	1990-03-15	1996-10-09	日本電気株式会社	アダプティブ・フィルタ適応化方法及び装置
US5245561A (en) *	1990-12-27	1993-09-14	Nec Corporation	Adaptive filter capable of quickly identifying an unknown system
CA2117035C (en) *	1993-03-05	1997-02-18	Akihiko Sugiyama	Method and apparatus for rapid identification of an unknown system based on an echo signal having a plurality of dispersive portions
JP2888121B2 (ja) *	1993-12-28	1999-05-10	日本電気株式会社	適応フィルタによる未知システム同定の方法及び装置
JPH0738563A (ja) *	1993-06-29	1995-02-07	Nec Corp	情報表示ボード用データ集配信システム

1994
- 1994-06-15 JP JP6156518A patent/JP2581458B2/ja not_active Expired - Fee Related
1995
- 1995-06-14 EP EP95109238A patent/EP0688099B1/de not_active Expired - Lifetime
- 1995-06-14 AU AU21693/95A patent/AU696803B2/en not_active Ceased
- 1995-06-14 CA CA002151779A patent/CA2151779C/en not_active Expired - Fee Related
- 1995-06-14 DE DE69512963T patent/DE69512963T2/de not_active Expired - Lifetime
- 1995-06-15 US US08/490,859 patent/US5636151A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
CA2151779A1 (en)	1995-12-16
JPH088691A (ja)	1996-01-12
US5636151A (en)	1997-06-03
AU696803B2 (en)	1998-09-17
EP0688099B1 (de)	1999-10-27
EP0688099A1 (de)	1995-12-20
AU2169395A (en)	1995-12-21
JP2581458B2 (ja)	1997-02-12
CA2151779C (en)	1998-12-29
DE69512963T2 (de)	2000-04-13

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Legal Events

Date	Code	Title	Description
2000-11-16	8364	No opposition during term of opposition