FR2451668A1 - Filtre a autoreglage comportant un circuit a retard - Google Patents

Filtre a autoreglage comportant un circuit a retard

Info

Publication number
FR2451668A1
FR2451668A1 FR8005546A FR8005546A FR2451668A1 FR 2451668 A1 FR2451668 A1 FR 2451668A1 FR 8005546 A FR8005546 A FR 8005546A FR 8005546 A FR8005546 A FR 8005546A FR 2451668 A1 FR2451668 A1 FR 2451668A1
Authority
FR
France
Prior art keywords
signal
circuit
self
adjusting filter
threshold
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
FR8005546A
Other languages
English (en)
Other versions
FR2451668B1 (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2451668A1 publication Critical patent/FR2451668A1/fr
Application granted granted Critical
Publication of FR2451668B1 publication Critical patent/FR2451668B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Networks Using Active Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

DANS UN FILTRE A AUTOREGLAGE COMPORTANT UN CIRCUIT A RETARD QUI, DANS DES PRISES DE CE CIRCUIT A RETARD, PRESENTE DES CIRCUITS DE REGLAGE D'AMPLITUDE QUI SONT REGLES A L'AIDE D'UN SIGNAL D'ERREUR INDIQUANT LA DIFFERENCE ENTRE UN SIGNAL DE SORTIE DU FILTRE ET UN SIGNAL DE SORTIE DU FILTRE AMENE DANS UNE FORME D'ONDE SOUHAITEE PAR UN CIRCUIT DE SEUIL, ON UTILISE UN CIRCUIT DE VERROUILLAGE QUI UTILISE LE SIGNAL D'ERREUR INTEGRE EN TANT QUE SIGNAL DE REGLAGE POUR ADAPTER LE NIVEAU DU SIGNAL DE SORTIE A UN NIVEAU DE SEUIL DU CIRCUIT DE SEUIL GRACE A QUOI DES COURANTS CONTINUS INDESIRABLES N'ONT AUCUNE INFLUENCE SUR LES CIRCUITS DE REGLAGE D'AMPLITUDE. APPLICATION: TRANSMISSION DE SIGNAUX.
FR8005546A 1979-03-16 1980-03-12 Filtre a autoreglage comportant un circuit a retard Granted FR2451668A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7902094,A NL186990C (nl) 1979-03-16 1979-03-16 Zelfinstellend filter met een vertragingsschakeling.

Publications (2)

Publication Number Publication Date
FR2451668A1 true FR2451668A1 (fr) 1980-10-10
FR2451668B1 FR2451668B1 (fr) 1982-08-20

Family

ID=19832820

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8005546A Granted FR2451668A1 (fr) 1979-03-16 1980-03-12 Filtre a autoreglage comportant un circuit a retard

Country Status (15)

Country Link
US (1) US4322811A (fr)
JP (1) JPS55127722A (fr)
AU (1) AU529578B2 (fr)
BE (1) BE882247A (fr)
BR (1) BR8001486A (fr)
CA (1) CA1149032A (fr)
DE (1) DE3009263C2 (fr)
ES (1) ES489541A1 (fr)
FR (1) FR2451668A1 (fr)
GB (1) GB2045038B (fr)
HK (1) HK47684A (fr)
IT (1) IT1129428B (fr)
NL (1) NL186990C (fr)
SE (2) SE442472B (fr)
SG (1) SG71983G (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495404A1 (fr) * 1980-12-02 1982-06-04 Philips Nv Filtre a reglage automatique

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122983U (fr) * 1981-01-25 1982-07-31
JPS5833313A (ja) * 1981-08-21 1983-02-26 Nec Corp トランスバ−サル定利得可変等化器
DE3212056A1 (de) * 1982-04-01 1984-02-09 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren und schaltungsanordnung zur durchfuehrung des verfahrens zur adaptiven echoloeschung in endgeraeten fuer duplex-datenuebertragung ueber zweidrahtleitungen
NL8502767A (nl) * 1985-10-10 1987-05-04 Philips Nv Zelfinstellend filter.
US4797635A (en) * 1987-05-11 1989-01-10 The Boeing Company Tracking loop having nonlinear amplitude filter
US4890250A (en) * 1988-11-18 1989-12-26 Steven Levin Hybrid estimating filter
US5517527A (en) * 1992-12-11 1996-05-14 Industrial Technology Research Institute Adaptive equalizer for ISDN U-interface transceiver
ES2079294B1 (es) * 1993-10-08 1997-06-01 Alcatel Standard Electrica Receptor a rafagas con demodulacion diferencial.
TW331679B (en) * 1995-12-22 1998-05-11 Thomson Multimedia Sa Analog-to-digital converter.
US5907261A (en) * 1997-09-05 1999-05-25 Ericsson Inc. Method and apparatus for controlling signal amplitude level
DE19820909A1 (de) * 1998-05-09 1999-11-25 Thomson Brandt Gmbh Datenaufbereitungseinrichtung
US6826279B1 (en) * 2000-05-25 2004-11-30 3Com Corporation Base band echo cancellation using laguerre echo estimation
US8514012B2 (en) * 2011-05-17 2013-08-20 Nxp B.V. Pulse shaper circuit with reduced electromagnetic emission

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071827A (en) * 1975-12-09 1978-01-31 Nippon Electric Co., Ltd. Transversal type automatic phase and amplitude equalizer
US4097807A (en) * 1974-12-27 1978-06-27 Fujitsu Limited Automatic equalizing method and system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715670A (en) * 1971-12-20 1973-02-06 Bell Telephone Labor Inc Adaptive dc restoration in single-sideband data systems
US3814952A (en) * 1972-12-15 1974-06-04 Bell Telephone Labor Inc Dual mode video clamping circuit
US4013980A (en) * 1973-01-05 1977-03-22 Siemens Aktiengesellschaft Equalizer for partial response signals
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
US3895305A (en) * 1973-08-20 1975-07-15 Coulter Electronics Clamp circuits
US4044381A (en) * 1974-06-03 1977-08-23 Hitachi, Ltd. Automatic waveform equalizing system for television receiver
FR2354003A1 (fr) * 1976-06-04 1977-12-30 Anvar Perfectionnements aux systemes de transmission de donnees
GB1536215A (en) * 1976-07-05 1978-12-20 Decca Ltd Clamping circuits for television signals
JPS54108521A (en) * 1978-02-13 1979-08-25 Nippon Hoso Kyokai <Nhk> Eliminator for television ghost signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097807A (en) * 1974-12-27 1978-06-27 Fujitsu Limited Automatic equalizing method and system
US4071827A (en) * 1975-12-09 1978-01-31 Nippon Electric Co., Ltd. Transversal type automatic phase and amplitude equalizer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495404A1 (fr) * 1980-12-02 1982-06-04 Philips Nv Filtre a reglage automatique

Also Published As

Publication number Publication date
CA1149032A (fr) 1983-06-28
BE882247A (fr) 1980-09-15
GB2045038B (en) 1983-09-28
GB2045038A (en) 1980-10-22
JPH0128535B2 (fr) 1989-06-02
SG71983G (en) 1984-08-03
SE442472B (sv) 1985-12-23
AU5644080A (en) 1980-09-18
NL186990C (nl) 1991-04-16
DE3009263A1 (de) 1980-09-18
SE8001955L (sv) 1980-09-17
HK47684A (en) 1984-06-15
IT8067392A0 (it) 1980-03-13
ES489541A1 (es) 1980-09-16
AU529578B2 (en) 1983-06-09
DE3009263C2 (de) 1984-06-20
JPS55127722A (en) 1980-10-02
US4322811A (en) 1982-03-30
IT1129428B (it) 1986-06-04
NL7902094A (nl) 1980-09-18
NL186990B (nl) 1990-11-16
FR2451668B1 (fr) 1982-08-20
BR8001486A (pt) 1980-11-11

Similar Documents

Publication Publication Date Title
FR2451668A1 (fr) Filtre a autoreglage comportant un circuit a retard
FR2451667A1 (fr) Filtre a autoreglage comportant un circuit a retard
KR890016365A (ko) 와류량계
JPS5568445A (en) Antiskid brake device
GB596078A (en) Improvements in or relating to arrangements for demodulating time modulated electricpulses
US3955191A (en) Analog-to-digital converter
GB1532658A (en) Charge-coupled amplifier
GB1536215A (en) Clamping circuits for television signals
ATE87786T1 (de) Klemmschaltung fuer einen analog-zu-digitalwandler.
FR2356329A1 (fr) Circuit de suppression de signal d&#39;echo
JPS57174927A (en) Skew adjusting circuit
GB1291801A (en) Circuits for producing a contour enhancement signal for television image transmitters
GB1505829A (en) Pulse modulated amplifiers
EP0193989A3 (en) Overvoltage protection circuit for a broadband line system
JPS5233573A (en) Tuning device
ATE110843T1 (de) Einstrahl- bzw. mehrstrahlflügelradwasserzähler mit vorrichtung zur kompensierung von alterungsfehlern.
GB1069133A (en) Compound seasoning
JPS554152A (en) Detection system for signal change point
SU465619A1 (ru) Способ компенсации вли ни ограничени
HINO The Oda Gûke in Bichû Province
SU1486943A1 (ru) Устройство для определения полярности периодических импульсных видеосигналов 2
SU402905A1 (ru) Устройство для компенсации временных искажений
FI843303A0 (fi) Koppling foer analog/digital-omvandling av en faergtelevisionssignal.
SU364950A1 (ru) Дифференцирующее устройство
SU36498A1 (ru) Усилитель

Legal Events

Date Code Title Description
ST Notification of lapse