JPS56138352A - Carrier wave detector - Google Patents

Carrier wave detector

Info

Publication number
JPS56138352A
JPS56138352A JP15606780A JP15606780A JPS56138352A JP S56138352 A JPS56138352 A JP S56138352A JP 15606780 A JP15606780 A JP 15606780A JP 15606780 A JP15606780 A JP 15606780A JP S56138352 A JPS56138352 A JP S56138352A
Authority
JP
Japan
Prior art keywords
carrier wave
wave detector
detector
carrier
wave
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
JP15606780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6324582B2 (online.php
Inventor
Berunaaru Ibu Gidoo Rowaku
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Publication of JPS56138352A publication Critical patent/JPS56138352A/ja
Publication of JPS6324582B2 publication Critical patent/JPS6324582B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
JP15606780A 1979-11-07 1980-11-07 Carrier wave detector Granted JPS56138352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7927479A FR2469837A1 (fr) 1979-11-07 1979-11-07 Dispositif de detection de porteuse dans un modem muni d'un annuleur d'echo

Publications (2)

Publication Number Publication Date
JPS56138352A true JPS56138352A (en) 1981-10-28
JPS6324582B2 JPS6324582B2 (online.php) 1988-05-21

Family

ID=9231397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15606780A Granted JPS56138352A (en) 1979-11-07 1980-11-07 Carrier wave detector

Country Status (6)

Country Link
US (1) US4355406A (online.php)
EP (1) EP0028857B1 (online.php)
JP (1) JPS56138352A (online.php)
CA (1) CA1149022A (online.php)
DE (1) DE3062462D1 (online.php)
FR (1) FR2469837A1 (online.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961341A (ja) * 1982-09-30 1984-04-07 Fujitsu Ltd キヤリア検出方式

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517906A1 (fr) * 1981-12-03 1983-06-10 Centre Nat Rech Scient Annulateur d'echo a commande automatique de gain pour systemes de transmission
US4443884A (en) * 1982-03-18 1984-04-17 Protocol Computers, Inc. Data line interface
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
US4593399A (en) * 1983-05-09 1986-06-03 Racal Data Communications Inc. Method and apparatus for maximizing efficiency in satellite communications
GB2146509B (en) * 1983-09-10 1986-08-13 Stc Plc Data transmission system
US4554508A (en) * 1983-12-07 1985-11-19 American Microsystems, Incorporated Carrier detection circuit
SE441052B (sv) * 1984-02-01 1985-09-02 Ellemtel Utvecklings Ab Forfarande for att testa funktionen hos en anordning for adaptiv ekoeliminering
US4546490A (en) * 1984-03-22 1985-10-08 Northern Telecom Limited Single frequency detection circuit
DE3583052D1 (de) * 1984-03-30 1991-07-11 Siemens Ag Schaltungsanordnung zum pruefen der funktionsfaehigkeit einer datenuebertragunseinrichtung.
US4766601A (en) * 1985-12-23 1988-08-23 Tektronix, Inc. Constant carrier watchdog
US4742510A (en) * 1986-04-04 1988-05-03 Massachusetts Institute Of Technology Near and far echo canceller for data communications
US4995030A (en) * 1988-02-01 1991-02-19 Memotec Datacom, Inc. Far end echo cancellation method and apparatus
CN111934656A (zh) * 2020-08-20 2020-11-13 索伦特(天津)自动化技术有限公司 气体超声流量计自动增益调整的滞回比较电路及实现方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE626509A (online.php) * 1961-12-29
US3275759A (en) * 1963-04-15 1966-09-27 Bell Telephone Labor Inc Break-in arrangement with compensation for variations in the trans-hybrid loss for echo suppressors
US3560669A (en) * 1969-02-25 1971-02-02 Wescom Echo suppressor
US3783194A (en) * 1972-11-20 1974-01-01 Milgo Electronic Corp Data modem having a fast turn-around time over direct distance dialed networks
US4009356A (en) * 1974-01-31 1977-02-22 Milgo Electronic Corporation Data modems having data drop-out and data echo protection
DE2442822C3 (de) * 1974-09-06 1979-04-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zur Messung von auf Datenubertragungsstrecken auftretenden Pegelunterbrechungen und Pegelabsenkungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961341A (ja) * 1982-09-30 1984-04-07 Fujitsu Ltd キヤリア検出方式

Also Published As

Publication number Publication date
FR2469837A1 (fr) 1981-05-22
US4355406A (en) 1982-10-19
FR2469837B1 (online.php) 1982-08-13
CA1149022A (en) 1983-06-28
EP0028857B1 (fr) 1983-03-23
JPS6324582B2 (online.php) 1988-05-21
EP0028857A1 (fr) 1981-05-20
DE3062462D1 (en) 1983-04-28

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