FR2359546A1 - Egaliseur automatique dans le domaine frequentiel - Google Patents

Egaliseur automatique dans le domaine frequentiel

Info

Publication number
FR2359546A1
FR2359546A1 FR7722030A FR7722030A FR2359546A1 FR 2359546 A1 FR2359546 A1 FR 2359546A1 FR 7722030 A FR7722030 A FR 7722030A FR 7722030 A FR7722030 A FR 7722030A FR 2359546 A1 FR2359546 A1 FR 2359546A1
Authority
FR
France
Prior art keywords
fourier transform
discrete fourier
automatic equalizer
frequential
field
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
FR7722030A
Other languages
English (en)
French (fr)
Other versions
FR2359546B1 (de
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.)
Xerox Corp
Original Assignee
Xerox Corp
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
Priority claimed from US05/706,702 external-priority patent/US4106103A/en
Priority claimed from US05/706,703 external-priority patent/US4100604A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of FR2359546A1 publication Critical patent/FR2359546A1/fr
Application granted granted Critical
Publication of FR2359546B1 publication Critical patent/FR2359546B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used
    • H04B3/141—Control of transmission; Equalising characterised by the equalising network used using multiequalisers, e.g. bump, cosine, Bode

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
FR7722030A 1976-07-19 1977-07-19 Egaliseur automatique dans le domaine frequentiel Granted FR2359546A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/706,702 US4106103A (en) 1976-07-19 1976-07-19 Derivation of discrete Fourier transform components of a time dependent signal
US05/706,703 US4100604A (en) 1976-07-19 1976-07-19 Frequency domain automatic equalizer utilizing the discrete Fourier transform

Publications (2)

Publication Number Publication Date
FR2359546A1 true FR2359546A1 (fr) 1978-02-17
FR2359546B1 FR2359546B1 (de) 1984-04-27

Family

ID=27107739

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7722030A Granted FR2359546A1 (fr) 1976-07-19 1977-07-19 Egaliseur automatique dans le domaine frequentiel

Country Status (7)

Country Link
JP (1) JPS5325335A (de)
CA (1) CA1087693A (de)
DE (1) DE2729336A1 (de)
FR (1) FR2359546A1 (de)
GB (1) GB1585836A (de)
IT (1) IT1086161B (de)
NL (1) NL7704518A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888914A (ja) * 1981-11-20 1983-05-27 Hiroshi Miyagawa 自動等化器
JPS5888915A (ja) * 1981-11-20 1983-05-27 Hiroshi Miyagawa 周波数サンプリング形自動等化器
US4813001A (en) * 1987-05-29 1989-03-14 Schlumberger Systems, Inc. AC calibration method and device by determining transfer characteristics

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582879A (en) * 1969-04-25 1971-06-01 Computer Mode Corp Communication channel equalization system and equalizer
US3851162A (en) * 1973-04-18 1974-11-26 Nasa Continuous fourier transform method and apparatus
US4027257A (en) * 1976-06-01 1977-05-31 Xerox Corporation Frequency domain automatic equalizer having logic circuitry

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292110A (en) * 1964-09-16 1966-12-13 Bell Telephone Labor Inc Transversal equalizer for digital transmission systems wherein polarity of time-spaced portions of output signal controls corresponding multiplier setting
US3375473A (en) * 1965-07-15 1968-03-26 Bell Telephone Labor Inc Automatic equalizer for analog channels having means for comparing two test pulses, one pulse traversing the transmission channel and equalizer
US3614673A (en) * 1970-05-28 1971-10-19 Bunker Ramo Technique for utilizing a single pulse to set the gains of a transversal filter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582879A (en) * 1969-04-25 1971-06-01 Computer Mode Corp Communication channel equalization system and equalizer
US3851162A (en) * 1973-04-18 1974-11-26 Nasa Continuous fourier transform method and apparatus
US4027257A (en) * 1976-06-01 1977-05-31 Xerox Corporation Frequency domain automatic equalizer having logic circuitry
FR2353902A1 (fr) * 1976-06-01 1977-12-30 Xerox Corp Egaliseur automatique dans le domaine frequentiel comprenant un circuit logique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/69 *
EXBK/71 *

Also Published As

Publication number Publication date
IT1086161B (it) 1985-05-28
JPS5325335A (en) 1978-03-09
CA1087693A (en) 1980-10-14
DE2729336A1 (de) 1978-01-26
NL7704518A (nl) 1978-01-23
DE2729336C2 (de) 1988-08-11
GB1585836A (en) 1981-03-11
FR2359546B1 (de) 1984-04-27

Similar Documents

Publication Publication Date Title
FR2358061A1 (fr) Procede et dispositif d'egalisation utilisant la transformee de fourier
DK1577A (da) Differentielt adaptiv modtager og fremgangsmade ved modtagelse af signaler
GB1201795A (en) Photographic copying apparatus
JPS5710598A (en) Transmitting circuit of microphone output
KR940702676A (ko) 여러종속채널들의 디지탈신호의 전송 및/또는 저장에 있어서 데이타를 감축시키는 방법
FR2416598A1 (fr) Circuit de reception/d'entrainement en duplex
FR2458179A1 (fr) Dispositif de decodage binaire et systemes de transmission comportant un tel dispositif
FR2398423A1 (fr) Circuit d'annulation d'ondes fantomes
FR2359546A1 (fr) Egaliseur automatique dans le domaine frequentiel
KR840004633A (ko) 디지탈 전기통신 네트웍의 트랜지트 익스체인지를 동위상화시키는 방법
FR2397107A1 (de)
FR2413737A1 (fr) Dispositif de reverberation artificielle de vibrations a audiofrequences
FR1521690A (fr) Appareil téléphonique utilisant des réseaux différentiels résistants pour l'équilibrage des bruits d'ambiance
FR1192595A (fr) Dispositif de réglage du gain ou de l'affaiblissement d'une onde électrique, utilisant une modulation de phase, et particulièrement applicable aux systèmes de compression-extension
Pattillo Jr et al. Which students do not repay college loans?
JPS526011A (en) Data transmission equipment
SU109765A1 (ru) Способ повышени помехозащищенности радиолиний с импульсной модул цией
van der Heijden et al. Binaural detection with spectrally nonoverlapping signals and maskers: evidence for masking by aural distortion products
SU582592A1 (ru) Приемник тональных сигналов
SU63533A1 (ru) Способ фазовой селекции
SU132681A1 (ru) Способ нелинейной широкополосной частотной модул ции
Edmonds Jr Cross Correlation between Continuum Brightness and Radial Velocity Fluctuations in the Solar Photosphere.
Lane Extraction of long-period surface waves
Auer The Oberlin College Forensic Union...
JPS5793713A (en) Nonlinear equalizer

Legal Events

Date Code Title Description
ST Notification of lapse