FR2535136B1 - Dispositif de controle de qualite de signaux - Google Patents
Dispositif de controle de qualite de signauxInfo
- Publication number
- FR2535136B1 FR2535136B1 FR838316700A FR8316700A FR2535136B1 FR 2535136 B1 FR2535136 B1 FR 2535136B1 FR 838316700 A FR838316700 A FR 838316700A FR 8316700 A FR8316700 A FR 8316700A FR 2535136 B1 FR2535136 B1 FR 2535136B1
- Authority
- FR
- France
- Prior art keywords
- control device
- signal quality
- quality control
- signal
- quality
- 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
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
- H04L1/24—Testing correct operation
- H04L1/241—Testing correct operation using pseudo-errors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Dc Digital Transmission (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57185259A JPS5974756A (ja) | 1982-10-21 | 1982-10-21 | 信号品質監視装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2535136A1 FR2535136A1 (fr) | 1984-04-27 |
FR2535136B1 true FR2535136B1 (fr) | 1992-11-27 |
Family
ID=16167686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR838316700A Expired - Lifetime FR2535136B1 (fr) | 1982-10-21 | 1983-10-20 | Dispositif de controle de qualite de signaux |
Country Status (4)
Country | Link |
---|---|
US (1) | US4580263A (fr) |
JP (1) | JPS5974756A (fr) |
FR (1) | FR2535136B1 (fr) |
GB (1) | GB2132458B (fr) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS615658A (ja) * | 1984-06-01 | 1986-01-11 | Fujitsu Ltd | 信号監視回路 |
FR2633138B1 (fr) * | 1988-06-21 | 1990-11-09 | Telediffusion Fse | Procede et dispositif d'evaluation de la marge de securite d'un signal video numerique |
DE4019536A1 (de) * | 1990-06-19 | 1992-01-02 | Siemens Ag | Schaltung zur digitalen datenuebertragung |
US5220581A (en) * | 1991-03-28 | 1993-06-15 | International Business Machines Corporation | Digital data link performance monitor |
US5418789A (en) * | 1992-10-14 | 1995-05-23 | International Business Machines Corporation | Fast communication link bit error rate estimator |
JPH06251096A (ja) * | 1993-02-24 | 1994-09-09 | Nec Ic Microcomput Syst Ltd | タイミング検証回路 |
DE4326277A1 (de) * | 1993-08-05 | 1995-02-09 | Sel Alcatel Ag | Verfahren und Schaltungsanordnung zur Detektion der Bitfehlerrate in einem digitalen optischen Empfänger |
US5490148A (en) * | 1993-12-15 | 1996-02-06 | Motorola, Inc. | Bit error rate estimator |
JP3221401B2 (ja) * | 1998-06-15 | 2001-10-22 | 日本電気株式会社 | 光信号監視方法及び装置 |
US6222877B1 (en) * | 1999-07-14 | 2001-04-24 | Luxn, Inc. | Method for performance monitoring of data transparent communication links |
US7173551B2 (en) * | 2000-12-21 | 2007-02-06 | Quellan, Inc. | Increasing data throughput in optical fiber transmission systems |
US7149256B2 (en) * | 2001-03-29 | 2006-12-12 | Quellan, Inc. | Multilevel pulse position modulation for efficient fiber optic communication |
US7307569B2 (en) * | 2001-03-29 | 2007-12-11 | Quellan, Inc. | Increasing data throughput in optical fiber transmission systems |
IL158211A0 (en) * | 2001-04-04 | 2004-05-12 | Quellan Inc | Method and system for decoding multilevel signals |
US20030030873A1 (en) * | 2001-05-09 | 2003-02-13 | Quellan, Inc. | High-speed adjustable multilevel light modulation |
JP3856101B2 (ja) | 2001-09-03 | 2006-12-13 | 日本電気株式会社 | 受信波形整形機能を有する光受信装置 |
AU2003211094A1 (en) * | 2002-02-15 | 2003-09-09 | Quellan, Inc. | Multi-level signal clock recovery technique |
WO2003092237A1 (fr) * | 2002-04-23 | 2003-11-06 | Quellan, Inc. | Systeme de modulation ask/dpsk combine |
JP2004013681A (ja) * | 2002-06-10 | 2004-01-15 | Bosu & K Consulting Kk | 名刺情報管理システム |
US7035361B2 (en) * | 2002-07-15 | 2006-04-25 | Quellan, Inc. | Adaptive noise filtering and equalization for optimal high speed multilevel signal decoding |
WO2004045078A2 (fr) * | 2002-11-12 | 2004-05-27 | Quellan, Inc. | Conversion analogique-numerique extremement rapide presentant une robustesse optimisee par rapport aux incertitudes de synchronisation |
WO2004088857A2 (fr) * | 2003-03-26 | 2004-10-14 | Quellan, Inc. | Procede et systeme d'egalisation de signaux de communication |
US7804760B2 (en) * | 2003-08-07 | 2010-09-28 | Quellan, Inc. | Method and system for signal emulation |
GB2421674B (en) * | 2003-08-07 | 2006-11-15 | Quellan Inc | Method and system for crosstalk cancellation |
JP4510832B2 (ja) * | 2003-11-17 | 2010-07-28 | ケラン インコーポレイテッド | アンテナ干渉消去のための方法およびシステム |
US7616700B2 (en) * | 2003-12-22 | 2009-11-10 | Quellan, Inc. | Method and system for slicing a communication signal |
US7210856B2 (en) * | 2004-03-02 | 2007-05-01 | Welldynamics, Inc. | Distributed temperature sensing in deep water subsea tree completions |
US7725079B2 (en) * | 2004-12-14 | 2010-05-25 | Quellan, Inc. | Method and system for automatic control in an interference cancellation device |
US7522883B2 (en) * | 2004-12-14 | 2009-04-21 | Quellan, Inc. | Method and system for reducing signal interference |
DE112007001045B4 (de) * | 2006-04-26 | 2019-05-16 | Intersil Americas LLC | Verfahren und System zur Reduzierung von Strahlungs-Emissionen aus einem Kommunikationskanal |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1404512A (fr) * | 1964-05-08 | 1965-07-02 | Cit Alcatel | Récepteurs de télégraphie |
US3404232A (en) * | 1964-12-01 | 1968-10-01 | Bell Telephone Labor Inc | Stabilized pulse regenerator |
IT1041378B (it) * | 1975-06-10 | 1980-01-10 | Cselt Centro Studi Lab Telecom | Dispositivo per il rilevamento della qualita di trasmissione nei ricevitori di segnali numerici |
FR2377729A1 (fr) * | 1977-01-14 | 1978-08-11 | Thomson Csf | Dispositif de decodage de signaux numeriques, et systeme comportant un tel dispositif |
JPS53120310A (en) * | 1977-03-30 | 1978-10-20 | Hitachi Ltd | Reception system for start-stop signal |
JPS54152802A (en) * | 1978-05-23 | 1979-12-01 | Fujitsu Ltd | Error rate supervisory system |
JPS55145461A (en) * | 1979-04-27 | 1980-11-13 | Nec Corp | Digital signal/noise ratio monitoring device |
US4327356A (en) * | 1979-06-19 | 1982-04-27 | Gilliland John D | Arrangement for monitoring the performance of a digital transmission system |
DE3012400C2 (de) * | 1980-03-29 | 1986-03-06 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Verfahren zur Überwachung der Bitfehlerrate |
US4375099A (en) * | 1980-04-08 | 1983-02-22 | Harris Corporation | Link performance indicator with alternate data sampling and error indication generation |
DE3036612A1 (de) * | 1980-09-29 | 1982-05-13 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur erkennung von digitalinformation bei einer digitalen informationsuebertragung, insbesondere informationsuebertragung in mobilfunk-kommunikationssystemen |
US4376309A (en) * | 1981-05-29 | 1983-03-08 | Bell Telephone Laboratories, Incorporated | Method and apparatus for signal-eye tracking in digital transmission systems |
-
1982
- 1982-10-21 JP JP57185259A patent/JPS5974756A/ja active Granted
-
1983
- 1983-10-20 FR FR838316700A patent/FR2535136B1/fr not_active Expired - Lifetime
- 1983-10-21 US US06/544,192 patent/US4580263A/en not_active Expired - Lifetime
- 1983-10-21 GB GB08328225A patent/GB2132458B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2132458B (en) | 1986-03-12 |
US4580263A (en) | 1986-04-01 |
JPS5974756A (ja) | 1984-04-27 |
GB2132458A (en) | 1984-07-04 |
FR2535136A1 (fr) | 1984-04-27 |
GB8328225D0 (en) | 1983-11-23 |
JPH0133064B2 (fr) | 1989-07-11 |
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