NO843159L - Datatransmisjonnsystem - Google Patents
DatatransmisjonnsystemInfo
- Publication number
- NO843159L NO843159L NO843159A NO843159A NO843159L NO 843159 L NO843159 L NO 843159L NO 843159 A NO843159 A NO 843159A NO 843159 A NO843159 A NO 843159A NO 843159 L NO843159 L NO 843159L
- Authority
- NO
- Norway
- Prior art keywords
- data
- transmission
- output
- input
- signal
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title claims description 42
- 230000003044 adaptive effect Effects 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 3
- 230000002596 correlated effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 238000012935 Averaging Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
-
- 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
- H04B3/235—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 combined with adaptive equaliser
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Bidirectional Digital Transmission (AREA)
- Dc Digital Transmission (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08321483A GB2144950A (en) | 1983-08-10 | 1983-08-10 | Data transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
NO843159L true NO843159L (no) | 1985-02-11 |
Family
ID=10547082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO843159A NO843159L (no) | 1983-08-10 | 1984-08-07 | Datatransmisjonnsystem |
Country Status (7)
Country | Link |
---|---|
US (1) | US4615025A (fr) |
EP (1) | EP0133728A3 (fr) |
JP (1) | JPS6053335A (fr) |
AU (1) | AU570380B2 (fr) |
CA (1) | CA1226949A (fr) |
GB (1) | GB2144950A (fr) |
NO (1) | NO843159L (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE447777B (sv) * | 1985-04-22 | 1986-12-08 | Ellemtel Utvecklings Ab | Forfarande for instellning av ett digitalt utjemnarfilter vid samtidig adaptiv ekoeliminering och adaptiv eliminering av storningar som uppstar genom intersymbolinterferens, samt anordning for genomforande av forfarande |
US4920567A (en) * | 1986-07-03 | 1990-04-24 | Motorola, Inc. | Secure telephone terminal |
DE3782995D1 (de) * | 1986-09-22 | 1993-01-21 | Siemens Ag | Verfahren und schaltungsanordnung zum synchronisieren eines taktgenerators. |
IL84167A (en) * | 1986-10-24 | 1991-04-15 | Southern Res Inst | Oral delivery of bioactive agents to and through the peyer's patch by use of microencapsulation |
NL8701750A (nl) * | 1987-07-24 | 1989-02-16 | At & T & Philips Telecomm | Zend-ontvanginrichting voor vol-duplex datatransmissie met een echocompensator en testvoorzieningen. |
US4995030A (en) * | 1988-02-01 | 1991-02-19 | Memotec Datacom, Inc. | Far end echo cancellation method and apparatus |
US5014306A (en) * | 1988-11-14 | 1991-05-07 | Transtream, Inc. | Voice and data telephone communication system and method |
US4969144A (en) * | 1989-01-03 | 1990-11-06 | Universal Data Systems, Inc. | Adaptive passband echo canceller |
FR2666947A1 (fr) * | 1990-09-18 | 1992-03-20 | Trt Telecom Radio Electr | Dispositif d'egalisation de spectre. |
JP2654599B2 (ja) * | 1991-02-27 | 1997-09-17 | 日本電気株式会社 | ダブルトーク検出回路 |
US5181198A (en) * | 1991-03-12 | 1993-01-19 | Bell Communications Research, Inc. | Coordinated transmission for two-pair digital subscriber lines |
US5490169A (en) * | 1993-06-16 | 1996-02-06 | Universal Data Systems, Inc. | Decision feedback equalizer method and apparatus |
DE4335843C2 (de) * | 1993-10-20 | 1997-02-13 | Siemens Ag | Verfahren zur Elimination digitaler quasiperiodischer Störsignale |
GB2324214A (en) * | 1997-04-08 | 1998-10-14 | Power X Limited | Synchronising arrangements |
US7027499B2 (en) | 2001-06-20 | 2006-04-11 | Agere Systems Inc. | Detection and correction circuit for blind equalization convergence errors |
GB2456400B (en) * | 2008-01-21 | 2012-12-26 | Skype | Reducing echo in a signal to be transmitted in a communication system |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3544716A (en) * | 1968-06-28 | 1970-12-01 | Bell Telephone Labor Inc | Adaptive equalization of a digital communication system |
US3935535A (en) * | 1974-09-09 | 1976-01-27 | Hycom Incorporated | Fast equalization acquisition for automatic adaptive digital modem |
US4057696A (en) * | 1976-08-09 | 1977-11-08 | Bell Telephone Laboratories, Incorporated | Recursive-like adaptive echo canceller |
US4072830A (en) * | 1976-10-04 | 1978-02-07 | Bell Telephone Laboratories, Incorporated | Variable phase shifter for adaptive echo cancellers |
NL7903759A (nl) * | 1979-05-14 | 1980-11-18 | Philips Nv | Echocompensator met hoogdoorlaatfilter. |
IT1144154B (it) * | 1981-03-09 | 1986-10-29 | Cselt Centro Studi Lab Telecom | Sistema di trasmissione simultanea bidirezionale su linea a due conduttori per telefono numerico |
DE3116863C2 (de) * | 1981-04-28 | 1985-08-08 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur Digitalsignal-Echokompensation |
US4375692A (en) * | 1981-04-30 | 1983-03-01 | The United States Of America As Represented By The Secretary Of The Navy | Least squares lattice decision feedback equalizer |
DE3121545C2 (de) * | 1981-05-29 | 1986-12-04 | Siemens AG, 1000 Berlin und 8000 München | Übersprech- u./o. Echo-Kompensationsschaltung |
US4425483A (en) * | 1981-10-13 | 1984-01-10 | Northern Telecom Limited | Echo cancellation using transversal filters |
US4528676A (en) * | 1982-06-14 | 1985-07-09 | Northern Telecom Limited | Echo cancellation circuit using stored, derived error map |
GB2123258A (en) * | 1982-06-25 | 1984-01-25 | Philips Electronic Associated | Digital duplex communication system |
GB2123259A (en) * | 1982-06-25 | 1984-01-25 | Philips Electronic Associated | Digital duplex communication system |
FR2534754A1 (fr) * | 1982-10-15 | 1984-04-20 | Trt Telecom Radio Electr | Recepteur pour modem de transmission de donnees, comportant un annuleur d'echo et un egaliseur |
US4545060A (en) * | 1983-09-19 | 1985-10-01 | Northern Telecom Limited | Decision feedback adaptive equalizer acting on zero states following a non-zero state |
-
1983
- 1983-08-10 GB GB08321483A patent/GB2144950A/en not_active Withdrawn
-
1984
- 1984-08-02 EP EP84201134A patent/EP0133728A3/fr not_active Withdrawn
- 1984-08-07 US US06/638,592 patent/US4615025A/en not_active Expired - Fee Related
- 1984-08-07 AU AU31688/84A patent/AU570380B2/en not_active Ceased
- 1984-08-07 JP JP59164335A patent/JPS6053335A/ja active Pending
- 1984-08-07 NO NO843159A patent/NO843159L/no unknown
- 1984-08-09 CA CA000460637A patent/CA1226949A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU570380B2 (en) | 1988-03-10 |
EP0133728A2 (fr) | 1985-03-06 |
CA1226949A (fr) | 1987-09-15 |
US4615025A (en) | 1986-09-30 |
JPS6053335A (ja) | 1985-03-27 |
GB8321483D0 (en) | 1983-09-14 |
AU3168884A (en) | 1985-02-14 |
GB2144950A (en) | 1985-03-13 |
EP0133728A3 (fr) | 1986-08-27 |
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