CN100521567C - 抑制通信装置中回音的桥式电路 - Google Patents
抑制通信装置中回音的桥式电路 Download PDFInfo
- Publication number
- CN100521567C CN100521567C CNB2003101006350A CN200310100635A CN100521567C CN 100521567 C CN100521567 C CN 100521567C CN B2003101006350 A CNB2003101006350 A CN B2003101006350A CN 200310100635 A CN200310100635 A CN 200310100635A CN 100521567 C CN100521567 C CN 100521567C
- Authority
- CN
- China
- Prior art keywords
- bridge circuit
- bridge
- circuit
- impedance
- transmission line
- 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.)
- Expired - Lifetime
Links
- 230000002401 inhibitory effect Effects 0.000 title 1
- 230000005540 biological transmission Effects 0.000 claims abstract description 57
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000005764 inhibitory process Effects 0.000 claims 1
- 238000004088 simulation Methods 0.000 abstract description 5
- 230000001629 suppression Effects 0.000 abstract 1
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- DNTFEAHNXKUSKQ-RFZPGFLSSA-N (1r,2r)-2-aminocyclopentane-1-sulfonic acid Chemical compound N[C@@H]1CCC[C@H]1S(O)(=O)=O DNTFEAHNXKUSKQ-RFZPGFLSSA-N 0.000 description 1
- 101150012579 ADSL gene Proteins 0.000 description 1
- 102100020775 Adenylosuccinate lyase Human genes 0.000 description 1
- 108700040193 Adenylosuccinate lyases Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
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
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0002—Modulated-carrier systems analog front ends; means for connecting modulators, demodulators or transceivers to a transmission line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10247208A DE10247208A1 (de) | 2002-10-10 | 2002-10-10 | Brückenschaltung zur Echounterdrückung in Kommunikationseinrichtungen |
DE10247208.4 | 2002-10-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1514550A CN1514550A (zh) | 2004-07-21 |
CN100521567C true CN100521567C (zh) | 2009-07-29 |
Family
ID=32038436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2003101006350A Expired - Lifetime CN100521567C (zh) | 2002-10-10 | 2003-10-10 | 抑制通信装置中回音的桥式电路 |
Country Status (4)
Country | Link |
---|---|
US (2) | US7324467B2 (zh) |
KR (1) | KR100631383B1 (zh) |
CN (1) | CN100521567C (zh) |
DE (1) | DE10247208A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10247208A1 (de) * | 2002-10-10 | 2004-04-22 | Infineon Technologies Ag | Brückenschaltung zur Echounterdrückung in Kommunikationseinrichtungen |
US8452316B2 (en) * | 2004-06-18 | 2013-05-28 | Qualcomm Incorporated | Power control for a wireless communication system utilizing orthogonal multiplexing |
US8199681B2 (en) * | 2008-12-12 | 2012-06-12 | General Electric Company | Software radio frequency canceller |
US9130747B2 (en) * | 2008-12-16 | 2015-09-08 | General Electric Company | Software radio frequency canceller |
US8787571B2 (en) | 2011-10-19 | 2014-07-22 | General Electric Company | Wired communications systems with improved capacity and security |
Family Cites Families (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1281562B (de) | 1966-04-01 | 1968-10-31 | Hartmann & Braun Ag | Brueckenschaltung zur Bestimmung des Widerstandsunterschiedes zweier Kabeladern |
US4087654A (en) * | 1975-11-28 | 1978-05-02 | Bell Telephone Laboratories, Incorporated | Echo canceller for two-wire full duplex data transmission |
US4074086A (en) * | 1976-09-07 | 1978-02-14 | Bell Telephone Laboratories, Incorporated | Joint adaptive echo canceller and equalizer for two-wire full-duplex data transmission |
GB2054997B (en) * | 1979-05-23 | 1984-01-18 | Suwa Seikosha Kk | Temperature detecting circuit |
US4272648A (en) * | 1979-11-28 | 1981-06-09 | International Telephone And Telegraph Corporation | Gain control apparatus for digital telephone line circuits |
US4267599A (en) * | 1979-11-28 | 1981-05-12 | Gregory R. Ginn | Antenna tuning system |
US4476557A (en) * | 1982-08-13 | 1984-10-09 | At&T Bell Laboratories | Duplex signaling circuit |
US4611342A (en) * | 1983-03-01 | 1986-09-09 | Racal Data Communications Inc. | Digital voice compression having a digitally controlled AGC circuit and means for including the true gain in the compressed data |
US4652703A (en) * | 1983-03-01 | 1987-03-24 | Racal Data Communications Inc. | Digital voice transmission having improved echo suppression |
EP0135759B1 (de) * | 1983-09-22 | 1988-07-20 | BBC Brown Boveri AG | Schaltungsanordnung zur Umsetzung einer in einem vorgegebenen Arbeitsfrequenzbereich liegenden Eingangsspannung in eine proportionale Ausgangsspannung |
US4574200A (en) * | 1984-01-18 | 1986-03-04 | William H. Racca | Thermistor temperature control circuit |
GB8404563D0 (en) * | 1984-02-21 | 1984-03-28 | Plessey Co Plc | Adaptive cancellation bridge circuit |
EP0163298B1 (en) * | 1984-05-30 | 1992-09-30 | Hitachi, Ltd. | Pcm coder/decoder with two-wire/four-wire conversion |
FI71857C (fi) * | 1985-06-13 | 1987-02-09 | Nokia Oy Ab | Foerfarande foer instaellning av utjaemningsimpedansen hos en gaffeltransformator. |
JPH0720070B2 (ja) * | 1985-08-14 | 1995-03-06 | 株式会社日立製作所 | デイジタル平衡回路を有するpcm符号復号器 |
JPH01241954A (ja) * | 1988-03-23 | 1989-09-26 | Nec Corp | 平衡回路網 |
JPH0622352B2 (ja) * | 1988-10-12 | 1994-03-23 | 勝敏 嶺 | ノイズ除去方法 |
JPH0745809Y2 (ja) * | 1989-04-19 | 1995-10-18 | 三菱重工業株式会社 | 硬貨判別装置 |
US4987316A (en) * | 1989-10-03 | 1991-01-22 | Automotive Systems Laboratory, Inc. | Passenger restraint firing circuit |
JP2520770B2 (ja) * | 1990-07-06 | 1996-07-31 | 富士通株式会社 | ハイブリッド回路 |
JPH04311197A (ja) * | 1991-04-09 | 1992-11-02 | Canon Inc | 電話交換装置 |
JPH05175883A (ja) * | 1991-12-26 | 1993-07-13 | Matsushita Electric Ind Co Ltd | ドアホンアダプタ装置 |
JP2746084B2 (ja) * | 1993-10-27 | 1998-04-28 | 日本電気株式会社 | 会議装置 |
US5893034A (en) * | 1994-12-09 | 1999-04-06 | Uniden Corporation | Cordless parent/slave telephone set with improved sidetone handling |
US5856970A (en) * | 1996-08-05 | 1999-01-05 | Motorola, Inc. | Multi-channel echo cancellation method and apparatus |
US6111861A (en) * | 1996-12-30 | 2000-08-29 | Siemens Information And Communication Networks, Inc. | Method and system for managing high speed data communication |
US5943392A (en) * | 1997-01-24 | 1999-08-24 | Southwestern Bell Telephone Company | Device for measuring echo return loss in a two-two wire line system |
US6400822B1 (en) * | 1997-10-27 | 2002-06-04 | Texas Instruments Incorporated | Linear, optical coupled line impedance circuit |
SE511055C2 (sv) * | 1997-11-03 | 1999-07-26 | Telia Ab | Förbättringar i samband med undertryckning av korthållseko |
US6072382A (en) * | 1998-01-06 | 2000-06-06 | Nonvolatile Electronics, Incorporated | Spin dependent tunneling sensor |
DE19808250A1 (de) * | 1998-02-27 | 1999-09-02 | Pierburg Ag | Temperaturregler |
EP1103007B1 (de) * | 1998-08-03 | 2003-09-17 | Pepperl + Fuchs Gmbh | Kapazitiver näherungsschalter zur auswertung kleiner kapazitätsänderungen und verfahren hierzu |
US6542604B1 (en) * | 1998-08-31 | 2003-04-01 | Infineon Technologies Ag | Scaled impedance replica for echo attenuation in digital transmission systems |
US6373908B2 (en) * | 1998-11-11 | 2002-04-16 | Broadcom Corporation | Adaptive electronic transmission signal cancellation apparatus for full duplex communication |
JP2000330655A (ja) * | 1999-05-14 | 2000-11-30 | Mitsubishi Electric Corp | 定電圧回路 |
US6965657B1 (en) * | 1999-12-01 | 2005-11-15 | Velocity Communication, Inc. | Method and apparatus for interference cancellation in shared communication mediums |
EP1107464A1 (en) * | 1999-12-06 | 2001-06-13 | Alcatel | Method and device for echo cancelling |
US6720799B2 (en) * | 2001-01-11 | 2004-04-13 | Broadcom Corporation | Replica network for linearizing switched capacitor circuits |
US20020101982A1 (en) * | 2001-01-30 | 2002-08-01 | Hammam Elabd | Line echo canceller scalable to multiple voice channels/ports |
US6741124B2 (en) * | 2002-02-20 | 2004-05-25 | Robert J. Lucas | Differential gain adjusting amplifier system with selectable electroluminescent differential photocell attenuation |
DE10247208A1 (de) * | 2002-10-10 | 2004-04-22 | Infineon Technologies Ag | Brückenschaltung zur Echounterdrückung in Kommunikationseinrichtungen |
KR102154836B1 (ko) * | 2020-04-22 | 2020-09-10 | 주식회사 가가 | 안전 고리와 연동하는 작업 안전 장치 |
-
2002
- 2002-10-10 DE DE10247208A patent/DE10247208A1/de not_active Ceased
-
2003
- 2003-10-07 US US10/680,709 patent/US7324467B2/en active Active
- 2003-10-09 KR KR1020030070124A patent/KR100631383B1/ko active IP Right Grant
- 2003-10-10 CN CNB2003101006350A patent/CN100521567C/zh not_active Expired - Lifetime
-
2008
- 2008-01-25 US US12/020,513 patent/US7778210B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1514550A (zh) | 2004-07-21 |
US20040114543A1 (en) | 2004-06-17 |
US7778210B2 (en) | 2010-08-17 |
US7324467B2 (en) | 2008-01-29 |
US20080117840A1 (en) | 2008-05-22 |
KR100631383B1 (ko) | 2006-10-09 |
KR20040032781A (ko) | 2004-04-17 |
DE10247208A1 (de) | 2004-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: INFINEON TECHNOLOGIES AG Free format text: FORMER OWNER: INFENNIAN TECHNOLOGIES AG Effective date: 20110414 |
|
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee |
Owner name: INFINEON TECHNOLOGIES WIRELESS SOLUTIONS AB Free format text: FORMER NAME: INFINEON TECHNOLOGIES AG Owner name: LANTIQ DEUTSCHLAND GMBH Free format text: FORMER NAME: INFINEON TECHNOLOGIES WIRELESS SOLUTIONS AB |
|
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: MUNICH, GERMANY TO: NEUBIBERG, GERMANY |
|
CP01 | Change in the name or title of a patent holder |
Address after: German Neubiberg Patentee after: Lantiq Deutschland GmbH Address before: German Neubiberg Patentee before: Infineon Technologies Wireless Solutions Ltd. Address after: German Neubiberg Patentee after: Infineon Technologies Wireless Solutions Ltd. Address before: German Neubiberg Patentee before: Infineon Technologies AG |
|
TR01 | Transfer of patent right |
Effective date of registration: 20110414 Address after: German Neubiberg Patentee after: Infineon Technologies AG Address before: Munich, Federal Republic of Germany Patentee before: INFINEON TECHNOLOGIES AG |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180509 Address after: German Neubiberg Patentee after: LANTIQ BETEILIGUNGS GmbH & Co.KG Address before: German Neubiberg Patentee before: Lantiq Deutschland GmbH |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200805 Address after: California, USA Patentee after: INTEL Corp. Address before: German Neubiberg Patentee before: LANTIQ BETEILIGUNGS GmbH & Co.KG |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20090729 |