FR2296315A1 - Procede et dispositif automatiques de correction des fluctuations de phase et d'amplitude d'un signal transmis - Google Patents

Procede et dispositif automatiques de correction des fluctuations de phase et d'amplitude d'un signal transmis

Info

Publication number
FR2296315A1
FR2296315A1 FR7539840A FR7539840A FR2296315A1 FR 2296315 A1 FR2296315 A1 FR 2296315A1 FR 7539840 A FR7539840 A FR 7539840A FR 7539840 A FR7539840 A FR 7539840A FR 2296315 A1 FR2296315 A1 FR 2296315A1
Authority
FR
France
Prior art keywords
correcting
phase
transmitted signal
automatic method
amplitude fluctuations
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.)
Granted
Application number
FR7539840A
Other languages
English (en)
Other versions
FR2296315B1 (fr
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of FR2296315A1 publication Critical patent/FR2296315A1/fr
Application granted granted Critical
Publication of FR2296315B1 publication Critical patent/FR2296315B1/fr
Granted legal-status Critical Current

Links

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
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers

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)
  • Filters That Use Time-Delay Elements (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Complex Calculations (AREA)
FR7539840A 1974-12-27 1975-12-26 Procede et dispositif automatiques de correction des fluctuations de phase et d'amplitude d'un signal transmis Granted FR2296315A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50001303A JPS5182548A (en) 1974-12-27 1974-12-27 Jidotokaki

Publications (2)

Publication Number Publication Date
FR2296315A1 true FR2296315A1 (fr) 1976-07-23
FR2296315B1 FR2296315B1 (fr) 1980-05-30

Family

ID=11497700

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7539840A Granted FR2296315A1 (fr) 1974-12-27 1975-12-26 Procede et dispositif automatiques de correction des fluctuations de phase et d'amplitude d'un signal transmis

Country Status (7)

Country Link
US (1) US4097807A (fr)
JP (1) JPS5182548A (fr)
CA (1) CA1041182A (fr)
DE (2) DE2560399A1 (fr)
FR (1) FR2296315A1 (fr)
GB (1) GB1532440A (fr)
SE (1) SE408359B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471093A1 (fr) * 1979-11-28 1981-06-12 Int Standard Electric Corp Circuit et procede de commande de gain pour signal numerique du type utilise dans les systemes telephoniques a commutation numerique et joncteur de ligne equipe d'un tel circuit

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5839422B2 (ja) * 1978-07-27 1983-08-30 ケイディディ株式会社 標本化関数形等化器
US4181888A (en) * 1978-08-04 1980-01-01 Bell Telephone Laboratories, Incorporated Feedback nonlinear equalization of modulated data signals
USRE31351E (en) * 1978-08-04 1983-08-16 Bell Telephone Laboratories, Incorporated Feedback nonlinear equalization of modulated data signals
JPS5596716A (en) * 1979-01-16 1980-07-23 Fujitsu Ltd Adaptive type automatic equalizing unit
NL7902093A (nl) * 1979-03-16 1980-09-18 Koninkl Philips Electronics Nv Zelfinstellend filter met een vertragingsschakeling.
NL186990C (nl) * 1979-03-16 1991-04-16 Philips Nv Zelfinstellend filter met een vertragingsschakeling.
US4263670A (en) * 1979-05-11 1981-04-21 Universal Data Systems, Inc. Microprocessor data modem
AU532416B2 (en) * 1979-09-19 1983-09-29 Plessey Overseas Ltd. Transversal equalisers
DE3000856A1 (de) * 1980-01-11 1981-07-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Adaptive entzerrereinrichtung
US4417317A (en) * 1980-02-04 1983-11-22 Westinghouse Electric Corp. Adaptive analog processor
IT1154430B (it) * 1982-01-15 1987-01-21 Cselt Centro Studi Lab Telecom Equalizzatore per tramissione di segnali numerici
FR2574234B1 (fr) * 1984-12-04 1987-01-02 Lignes Telegraph Telephon Egaliseur numerique de la reponse en frequence d'un canal de transmission de signaux electriques a plusieurs etats d'amplitude et de phase
FR2641922B1 (fr) * 1988-12-30 1991-03-22 Alcatel Transmission Dispositif d'egalisation auto-adaptative pour installation de demodulation differentiellement coherente
EP0621712B1 (fr) 1989-06-13 2001-03-07 Fujitsu Limited Annulateur de distortion pour récepteur de ligne
JP2545614B2 (ja) * 1989-09-20 1996-10-23 富士通株式会社 自動等化器のタップ係数保護方式
JPH05299976A (ja) * 1992-04-23 1993-11-12 Fujitsu Ltd 自動等化器
US5495501A (en) * 1992-09-02 1996-02-27 Fujitsu Limited Communication system including a digital roll-off filter
JP3205110B2 (ja) * 1993-02-18 2001-09-04 富士通株式会社 周波数オフセット対応式変復調装置
JP3462937B2 (ja) * 1994-09-27 2003-11-05 富士通株式会社 自動振幅等化器
JP3366803B2 (ja) * 1996-05-28 2003-01-14 パイオニア株式会社 適応等化器
US8514012B2 (en) * 2011-05-17 2013-08-20 Nxp B.V. Pulse shaper circuit with reduced electromagnetic emission

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736414A (en) * 1971-06-30 1973-05-29 Ibm Transversal filter equalizer for partial response channels
US4028626A (en) * 1973-01-18 1977-06-07 Hycom Incorporated Digital data receiver with automatic timing recovery and control
FR2216715B1 (fr) * 1973-01-31 1976-06-11 Ibm France
JPS605086B2 (ja) * 1973-03-20 1985-02-08 日本電気株式会社 相関符号化デ−タ伝送における適応型自動等化器
US3875515A (en) * 1973-06-19 1975-04-01 Rixon Automatic equalizer with decision directed feedback

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471093A1 (fr) * 1979-11-28 1981-06-12 Int Standard Electric Corp Circuit et procede de commande de gain pour signal numerique du type utilise dans les systemes telephoniques a commutation numerique et joncteur de ligne equipe d'un tel circuit

Also Published As

Publication number Publication date
DE2558415C2 (de) 1986-06-12
SE7514456L (sv) 1976-06-28
US4097807A (en) 1978-06-27
JPS5182548A (en) 1976-07-20
CA1041182A (fr) 1978-10-24
DE2560399A1 (fr) 1982-07-15
GB1532440A (en) 1978-11-15
FR2296315B1 (fr) 1980-05-30
JPS5533203B2 (fr) 1980-08-29
SE408359B (sv) 1979-06-05
DE2558415A1 (de) 1976-07-08

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