NL170688C - Inrichting voor simultane tweerichtingsdatatransmissie over tweedraadsverbindingen. - Google Patents

Inrichting voor simultane tweerichtingsdatatransmissie over tweedraadsverbindingen.

Info

Publication number
NL170688C
NL170688C NLAANVRAGE7607037,A NL7607037A NL170688C NL 170688 C NL170688 C NL 170688C NL 7607037 A NL7607037 A NL 7607037A NL 170688 C NL170688 C NL 170688C
Authority
NL
Netherlands
Prior art keywords
simultaneous
data transmission
way data
wire connections
connections
Prior art date
Application number
NLAANVRAGE7607037,A
Other languages
English (en)
Dutch (nl)
Other versions
NL7607037A (nl
NL170688B (nl
Inventor
Hendricus Christianus Va Elzen
Petrus Josephus Van Ing Gerwen
Wilfred Andre Maria I Snijders
Original Assignee
Philips Nv
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
Application filed by Philips Nv filed Critical Philips Nv
Priority to NLAANVRAGE7607037,A priority Critical patent/NL170688C/xx
Priority to DE2727242A priority patent/DE2727242C3/de
Priority to US05/807,008 priority patent/US4117277A/en
Priority to CA281,115A priority patent/CA1093698A/en
Priority to SE7707284A priority patent/SE420790B/xx
Priority to AU26382/77A priority patent/AU510666B2/en
Priority to SE7707284D priority patent/SE7707284L/xx
Priority to IT25066/77A priority patent/IT1080952B/it
Priority to GB26590/77A priority patent/GB1540036A/en
Priority to JP7645677A priority patent/JPS533003A/ja
Priority to FR7719801A priority patent/FR2357119A1/fr
Publication of NL7607037A publication Critical patent/NL7607037A/xx
Publication of NL170688B publication Critical patent/NL170688B/xx
Application granted granted Critical
Publication of NL170688C publication Critical patent/NL170688C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1423—Two-way operation using the same type of signal, i.e. duplex for simultaneous baseband signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Bidirectional Digital Transmission (AREA)
NLAANVRAGE7607037,A 1976-06-28 1976-06-28 Inrichting voor simultane tweerichtingsdatatransmissie over tweedraadsverbindingen. NL170688C (nl)

Priority Applications (11)

Application Number Priority Date Filing Date Title
NLAANVRAGE7607037,A NL170688C (nl) 1976-06-28 1976-06-28 Inrichting voor simultane tweerichtingsdatatransmissie over tweedraadsverbindingen.
DE2727242A DE2727242C3 (de) 1976-06-28 1977-06-16 Schaltungsanordnung für simultane Zweiwgdatenübertragung über Zweidrahtverbindungen
US05/807,008 US4117277A (en) 1976-06-28 1977-06-16 Arrangement for simultaneous two-way data transmission over two-wire circuits
CA281,115A CA1093698A (en) 1976-06-28 1977-06-22 Arrangement for simultaneous two-way data transmission over two-wire circuits
AU26382/77A AU510666B2 (en) 1976-06-28 1977-06-23 Duplex data transmission method
SE7707284D SE7707284L (sv) 1976-06-28 1977-06-23 Anordning for samtidig dubbelriktad dataoverforing via tvatradiga kretsar
SE7707284A SE420790B (sv) 1976-06-28 1977-06-23 Anordning for samtidig dubbelriktad dataoverforing via tvatradiga kretsar
IT25066/77A IT1080952B (it) 1976-06-28 1977-06-24 Sistema per la trasmissione simultanea bidirezionale di dati tramite circuiti bifilari
GB26590/77A GB1540036A (en) 1976-06-28 1977-06-24 Data transmission
JP7645677A JPS533003A (en) 1976-06-28 1977-06-27 Bidirectional simultaneous transmission circuit
FR7719801A FR2357119A1 (fr) 1976-06-28 1977-06-28 Dispositif pour la transmission bidirectionnelle simultanee de donnees par des liaisons a deux fils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7607037,A NL170688C (nl) 1976-06-28 1976-06-28 Inrichting voor simultane tweerichtingsdatatransmissie over tweedraadsverbindingen.

Publications (3)

Publication Number Publication Date
NL7607037A NL7607037A (nl) 1977-12-30
NL170688B NL170688B (nl) 1982-07-01
NL170688C true NL170688C (nl) 1982-12-01

Family

ID=19826457

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7607037,A NL170688C (nl) 1976-06-28 1976-06-28 Inrichting voor simultane tweerichtingsdatatransmissie over tweedraadsverbindingen.

Country Status (10)

Country Link
US (1) US4117277A (ja)
JP (1) JPS533003A (ja)
AU (1) AU510666B2 (ja)
CA (1) CA1093698A (ja)
DE (1) DE2727242C3 (ja)
FR (1) FR2357119A1 (ja)
GB (1) GB1540036A (ja)
IT (1) IT1080952B (ja)
NL (1) NL170688C (ja)
SE (2) SE420790B (ja)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE426763B (sv) * 1977-01-17 1983-02-07 Trt Telecom Radio Electr Digital ekoeliminator for ett modem for dataoverforing genom modulation av en bervag
FR2448258A1 (fr) * 1979-02-05 1980-08-29 Trt Telecom Radio Electr Systeme de test d'un dispositif muni d'un annuleur d'echo
US4268727A (en) * 1979-03-14 1981-05-19 International Telephone And Telegraph Corporation Adaptive digital echo cancellation circuit
NL7902053A (nl) * 1979-03-15 1980-09-17 Philips Nv Echocompensator voor homochrone data overdrachtssyste- men.
FR2460075B1 (fr) * 1979-06-22 1988-12-09 Cit Alcatel Annuleur d'echo adaptatif pour transmission de donnees en duplex
FR2475322A1 (fr) * 1980-02-01 1981-08-07 Trt Telecom Radio Electr Annuleur d'echo a circuits de calcul simplifies
US4326287A (en) * 1980-06-30 1982-04-20 International Business Machines Corp. Two wire bi-directional digital telephone link
FR2485842B1 (fr) * 1980-06-30 1988-02-26 Cit Alcatel Dispositif de separation des voies emission et reception d'une transmission de donnees en duplex integral
JPS6046899B2 (ja) * 1980-09-26 1985-10-18 日本電気株式会社 反響消去装置
US4411006A (en) * 1981-09-09 1983-10-18 Communication Satellite Corporation Digital bit rate synchronizer for digital echo cancellers and similar signal processing devices
SE426765B (sv) * 1981-11-02 1983-02-07 Ellemtel Utvecklings Ab Balansfilter av fir-typ ingaende i sendar-mottagarenheten i ett telekommunikationssystem
SE426764B (sv) * 1981-11-02 1983-02-07 Ellemtel Utvecklings Ab Forfarande att astadkomma adaptiv ekoeliminering vid overforing av digital information i duplex jemte anordning for utforande av forfarandet
GB2111354B (en) * 1981-11-19 1985-06-19 Standard Telephones Cables Ltd Echo canceller
DE3231055A1 (de) * 1982-08-20 1984-02-23 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur basisbanduebertragung mit echokompensation
US4628156A (en) * 1982-12-27 1986-12-09 International Business Machines Corporation Canceller trained echo suppressor
EP0156315B1 (de) * 1984-03-30 1991-06-05 Siemens Aktiengesellschaft Schaltungsanordnung zum Prüfen der Funktionsfähigkeit einer Datenübertragunseinrichtung
US4638473A (en) * 1984-12-28 1987-01-20 Gte Laboratories Incorporated Two wire bidirectional digital transmission system
AU584488B2 (en) * 1985-12-24 1989-05-25 Telstra Corporation Limited Method of initial synchronisation for full duplex digital transmission
NL8600087A (nl) * 1986-01-17 1987-08-17 Philips Nv Inrichting voor vol-duplex datatransmissie over tweedraadsverbindingen.
DE3643834C2 (de) * 1986-12-20 1994-10-06 Rheydt Kabelwerk Ag Verfahren zur bidirektionalen Übertragung von digitalen Signalen
US4953160A (en) * 1988-02-24 1990-08-28 Integrated Network Corporation Digital data over voice communication
US4924492A (en) * 1988-03-22 1990-05-08 American Telephone And Telegraph Company Method and apparatus for wideband transmission of digital signals between, for example, a telephone central office and customer premises
JP2518394B2 (ja) * 1989-05-24 1996-07-24 日本電気株式会社 エコ―キャンセラ方式全二重送受信回路
US5119402A (en) * 1990-06-26 1992-06-02 Digital Equipment Corporation Method and apparatus for transmission of local area network signals over unshielded twisted pairs
JP2853455B2 (ja) * 1992-05-15 1999-02-03 ケイディディ株式会社 エコーキャンセラ
US5396503A (en) * 1993-02-19 1995-03-07 Hewlett-Packard Company Method and system for communicating data
FR2729024A1 (fr) * 1994-12-30 1996-07-05 Matra Communication Annuleur d'echo acoustique avec filtrage en sous-bandes
US5887032A (en) * 1996-09-03 1999-03-23 Amati Communications Corp. Method and apparatus for crosstalk cancellation
US5905716A (en) * 1996-12-09 1999-05-18 Ericsson, Inc. Asynchronous full duplex communications over a single channel
AU4492100A (en) * 1999-04-22 2000-11-10 Broadcom Corporation Gigabit ethernet with timing offsets between the twisted pairs
DE102004025576B4 (de) * 2004-05-25 2006-03-30 Infineon Technologies Ag Sende-und Empfangsanordnung mit einer Regelung zur Störsignalunterdrückung
JP2007235502A (ja) * 2006-03-01 2007-09-13 Sony Corp オーディオ通信システム

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707683A (en) * 1971-11-15 1972-12-26 Gte Automatic Electric Lab Inc Timing recovery circuit for use in modified duobinary transmission system
US3821494A (en) * 1972-07-14 1974-06-28 Ibm Digital echo suppressor with direct table look up control by delta coded signals
US3894200A (en) * 1973-10-10 1975-07-08 Communications Satellite Corp Adaptive echo canceller with digital center clipping
FR2272544B1 (ja) * 1974-05-24 1977-03-11 Cit Alcatel
US4024358A (en) * 1975-10-31 1977-05-17 Communications Satellite Corporation (Comsat) Adaptive echo canceller using differential pulse code modulation encoding
US4087654A (en) * 1975-11-28 1978-05-02 Bell Telephone Laboratories, Incorporated Echo canceller for two-wire full duplex data transmission

Also Published As

Publication number Publication date
DE2727242B2 (de) 1980-11-13
JPS533003A (en) 1978-01-12
SE7707284L (sv) 1977-12-29
FR2357119B1 (ja) 1981-08-14
JPS5733738B2 (ja) 1982-07-19
DE2727242A1 (de) 1978-01-05
AU2638277A (en) 1979-01-04
AU510666B2 (en) 1980-07-10
NL7607037A (nl) 1977-12-30
DE2727242C3 (de) 1981-09-03
CA1093698A (en) 1981-01-13
US4117277A (en) 1978-09-26
FR2357119A1 (fr) 1978-01-27
NL170688B (nl) 1982-07-01
IT1080952B (it) 1985-05-16
GB1540036A (en) 1979-02-07
SE420790B (sv) 1981-10-26

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee