DE3465678D1 - Carrier frequency equalizing apparatus controlled by base-band signals - Google Patents

Carrier frequency equalizing apparatus controlled by base-band signals

Info

Publication number
DE3465678D1
DE3465678D1 DE8484200648T DE3465678T DE3465678D1 DE 3465678 D1 DE3465678 D1 DE 3465678D1 DE 8484200648 T DE8484200648 T DE 8484200648T DE 3465678 T DE3465678 T DE 3465678T DE 3465678 D1 DE3465678 D1 DE 3465678D1
Authority
DE
Germany
Prior art keywords
base
carrier frequency
band signals
apparatus controlled
equalizing apparatus
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
Application number
DE8484200648T
Other languages
English (en)
Inventor
Georges Societe Civil Bonnerot
Laurent Societe Civi Bourgeade
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
Application granted granted Critical
Publication of DE3465678D1 publication Critical patent/DE3465678D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers
DE8484200648T 1983-05-11 1984-05-08 Carrier frequency equalizing apparatus controlled by base-band signals Expired DE3465678D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8307909A FR2546010B1 (fr) 1983-05-11 1983-05-11 Dispositif d'egalisation en frequence porteuse commande a partir de la bande de base

Publications (1)

Publication Number Publication Date
DE3465678D1 true DE3465678D1 (en) 1987-10-01

Family

ID=9288810

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484200648T Expired DE3465678D1 (en) 1983-05-11 1984-05-08 Carrier frequency equalizing apparatus controlled by base-band signals

Country Status (9)

Country Link
US (1) US5088110A (de)
EP (1) EP0125723B1 (de)
JP (1) JPH0656969B2 (de)
AU (1) AU560134B2 (de)
CA (1) CA1218712A (de)
DE (1) DE3465678D1 (de)
FI (1) FI76460C (de)
FR (1) FR2546010B1 (de)
NO (1) NO841837L (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03203416A (ja) * 1989-12-29 1991-09-05 Sharp Corp 自動等化器及び直交振幅変調波復調器
US5245556A (en) * 1992-09-15 1993-09-14 Universal Data Systems, Inc. Adaptive equalizer method and apparatus
US7583728B2 (en) * 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7639759B2 (en) * 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
US7423987B2 (en) * 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
US7209524B2 (en) 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7245671B1 (en) * 2001-04-27 2007-07-17 The Directv Group, Inc. Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
US7471735B2 (en) 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7151807B2 (en) * 2001-04-27 2006-12-19 The Directv Group, Inc. Fast acquisition of timing and carrier frequency from received signal
US7184489B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US7483505B2 (en) * 2001-04-27 2009-01-27 The Directv Group, Inc. Unblind equalizer architecture for digital communication systems
US7822154B2 (en) * 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
US7184473B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7173981B1 (en) 2001-04-27 2007-02-06 The Directv Group, Inc. Dual layer signal processing in a layered modulation digital signal system
US7502430B2 (en) * 2001-04-27 2009-03-10 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US8005035B2 (en) * 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
US7058369B1 (en) 2001-11-21 2006-06-06 Pmc-Sierra Inc. Constant gain digital predistortion controller for linearization of non-linear amplifiers
TWI324463B (en) * 2002-07-01 2010-05-01 Hughes Electronics Corp Improving hierarchical 8psk performance
EP1529347B1 (de) * 2002-07-03 2016-08-24 The Directv Group, Inc. Verfahren und vorrichtung zur modulation in schichten
ATE461553T1 (de) * 2002-10-25 2010-04-15 Directv Group Inc Schätzen des arbeitspunkts eines nichtlinearenausbreitungswellenrührenverstärker
AU2003301717A1 (en) * 2002-10-25 2004-05-25 The Directv Group, Inc. Lower complexity layered modulation signal processor
US7474710B2 (en) * 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
US7529312B2 (en) * 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
CA2503133C (en) * 2002-10-25 2009-08-18 The Directv Group, Inc. Method and apparatus for tailoring carrier power requirements according to availability in layered modulation systems
US7463676B2 (en) * 2002-10-25 2008-12-09 The Directv Group, Inc. On-line phase noise measurement for layered modulation
US7502429B2 (en) * 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518777B1 (de) * 1971-03-25 1976-03-19
US3818347A (en) * 1972-10-10 1974-06-18 Intertel Inc Receiver for amplitude modulated quadrature carrier signals
US3878468A (en) * 1974-01-30 1975-04-15 Bell Telephone Labor Inc Joint equalization and carrier recovery adaptation in data transmission systems
US3992616A (en) * 1975-06-24 1976-11-16 Honeywell Inc. Receiver equalizer apparatus
GB2036509B (en) * 1978-10-27 1983-01-26 Kokusai Denshin Denwa Co Ltd Automatic phase and amplitude equalisation of fm signals
US4315318A (en) * 1978-12-26 1982-02-09 Fuji Photo Film Co., Ltd. Method and apparatus for processing a radiation image
GB2061656B (en) * 1979-09-14 1983-10-19 Victor Company Of Japan Digital filter
US4320526A (en) * 1980-03-03 1982-03-16 Bell Telephone Laboratories, Incorporated Adaptive phase-jitter tracker
US4361892A (en) * 1980-11-03 1982-11-30 Bell Telephone Laboratories, Incorporated Adaptive equalizer
JPS57109089A (en) * 1980-12-26 1982-07-07 Nec Corp Initial value resetting circuit for operational amplifier
JPS57145445A (en) * 1981-03-05 1982-09-08 Toshiba Corp Automatic equalizer
US4376308A (en) * 1981-04-01 1983-03-08 Bell Telephone Laboratories, Incorporated Control of coefficient drift for fractionally spaced equalizers

Also Published As

Publication number Publication date
NO841837L (no) 1984-11-12
FI841842A0 (fi) 1984-05-08
AU560134B2 (en) 1987-04-02
CA1218712A (en) 1987-03-03
JPS59211336A (ja) 1984-11-30
EP0125723A1 (de) 1984-11-21
AU2787984A (en) 1984-11-15
FR2546010B1 (fr) 1985-07-12
US5088110A (en) 1992-02-11
FI76460C (fi) 1988-10-10
EP0125723B1 (de) 1987-08-26
FI841842A (fi) 1984-11-12
JPH0656969B2 (ja) 1994-07-27
FI76460B (fi) 1988-06-30
FR2546010A1 (fr) 1984-11-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee