FR2539261B1 - Emetteur pour faisceaux hertziens numeriques a multi-etats - Google Patents

Emetteur pour faisceaux hertziens numeriques a multi-etats

Info

Publication number
FR2539261B1
FR2539261B1 FR8300204A FR8300204A FR2539261B1 FR 2539261 B1 FR2539261 B1 FR 2539261B1 FR 8300204 A FR8300204 A FR 8300204A FR 8300204 A FR8300204 A FR 8300204A FR 2539261 B1 FR2539261 B1 FR 2539261B1
Authority
FR
France
Prior art keywords
transmitter
state digital
beams
hertzian beams
digital hertzian
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
FR8300204A
Other languages
English (en)
Other versions
FR2539261A1 (fr
Inventor
Jean Lods
Christian Trinh Van
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.)
Societe Anonyme de Telecommunications SAT
Original Assignee
Societe Anonyme de Telecommunications SAT
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 Societe Anonyme de Telecommunications SAT filed Critical Societe Anonyme de Telecommunications SAT
Priority to FR8300204A priority Critical patent/FR2539261B1/fr
Priority to JP59000550A priority patent/JPS59135958A/ja
Priority to DE8484400040T priority patent/DE3466844D1/de
Priority to EP84400040A priority patent/EP0114761B1/fr
Priority to US06/569,482 priority patent/US4571549A/en
Publication of FR2539261A1 publication Critical patent/FR2539261A1/fr
Application granted granted Critical
Publication of FR2539261B1 publication Critical patent/FR2539261B1/fr
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
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR8300204A 1983-01-07 1983-01-07 Emetteur pour faisceaux hertziens numeriques a multi-etats Expired FR2539261B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR8300204A FR2539261B1 (fr) 1983-01-07 1983-01-07 Emetteur pour faisceaux hertziens numeriques a multi-etats
JP59000550A JPS59135958A (ja) 1983-01-07 1984-01-07 １６ｑａｍ変調器
DE8484400040T DE3466844D1 (en) 1983-01-07 1984-01-09 16-quadrature amplitude modulation modulator for radio links
EP84400040A EP0114761B1 (fr) 1983-01-07 1984-01-09 Modulateur MAQ-16 pour faisceaux hertziens
US06/569,482 US4571549A (en) 1983-01-07 1984-01-09 16-QAM Modulator with PLL amplification devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8300204A FR2539261B1 (fr) 1983-01-07 1983-01-07 Emetteur pour faisceaux hertziens numeriques a multi-etats

Publications (2)

Publication Number Publication Date
FR2539261A1 FR2539261A1 (fr) 1984-07-13
FR2539261B1 true FR2539261B1 (fr) 1989-07-13

Family

ID=9284768

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8300204A Expired FR2539261B1 (fr) 1983-01-07 1983-01-07 Emetteur pour faisceaux hertziens numeriques a multi-etats

Country Status (5)

Country Link
US (1) US4571549A (fr)
EP (1) EP0114761B1 (fr)
JP (1) JPS59135958A (fr)
DE (1) DE3466844D1 (fr)
FR (1) FR2539261B1 (fr)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644537A (en) * 1984-12-24 1987-02-17 American Telephone And Telegraph Company Inband coding of secondary data
US4651320A (en) * 1984-12-24 1987-03-17 American Telephone And Telegraph Company Inband coding of secondary data
EP0209306B1 (fr) * 1985-07-09 1992-06-10 Nec Corporation Circuit de régénération d'horloge verrouillé en phase pour systèmes de transmission numériques
FR2610462A1 (fr) * 1986-12-30 1988-08-05 Thomson Csf Dispositif et procede de modulation amplitude-phase utilisant une pluralite d'emetteurs
JP2595961B2 (ja) * 1987-04-03 1997-04-02 日本電気株式会社 デイジタル変復調システム
US5050188A (en) * 1987-06-12 1991-09-17 Josef Dirr Method and apparatus for transmitting coded information
US4804931A (en) * 1987-12-11 1989-02-14 Acrodyne Industries, Inc. Digital amplitude modulator - transmitter
US5093636A (en) * 1990-09-25 1992-03-03 Hewlett-Packard Company Phase based vector modulator
US5237292A (en) * 1992-07-01 1993-08-17 Space Systems/Loral Quadrature amplitude modulation system with compensation for transmission system characteristics
US5260674A (en) * 1992-08-04 1993-11-09 Acrodyne Industries, Inc. Amplitude modulator
US5469127A (en) * 1992-08-04 1995-11-21 Acrodyne Industries, Inc. Amplification apparatus and method including modulator component
US5450044A (en) * 1993-04-14 1995-09-12 Acrodyne Industries, Inc. Quadrature amplitude modulator including a digital amplitude modulator as a component thereof
WO1994000973A2 (fr) * 1992-11-06 1994-01-20 Josef Dirr Procede de codage et de transmission d'informations
US5329259A (en) * 1993-02-11 1994-07-12 Motorola, Inc. Efficient amplitude/phase modulation amplifier
US5588022A (en) * 1994-03-07 1996-12-24 Xetron Corp. Method and apparatus for AM compatible digital broadcasting
US5463355A (en) * 1994-07-15 1995-10-31 Loral Aerospace Corp. Wideband vector modulator which combines outputs of a plurality of QPSK modulators
US6889356B1 (en) * 1994-11-23 2005-05-03 Cingular Wireless Ii, Llc Cyclic trellis coded modulation
US5675590A (en) 1994-11-23 1997-10-07 At&T Wireless Services, Inc. Cyclic trellis coded modulation
US5659578A (en) * 1994-11-23 1997-08-19 At&T Wireless Services, Inc. High rate Reed-Solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio
JPH11500882A (ja) * 1995-06-08 1999-01-19 フィリップス エレクトロニクス エヌ ベー 位相変調器及び周波数逓倍器を備えた送信器を用いる伝送システム
US5825829A (en) * 1995-06-30 1998-10-20 Scientific-Atlanta, Inc. Modulator for a broadband communications system
EP0768782A1 (fr) 1995-10-16 1997-04-16 Loral Aerospace Corporation Modulateur vectoriel micro-ondes à large bande
US5612651A (en) * 1996-01-02 1997-03-18 Loral Aerospace Corp. Modulating array QAM transmitter
WO2000014867A1 (fr) * 1998-09-03 2000-03-16 Siemens Aktiengesellschaft Dispositif pour produire un signal module en amplitude
US6088399A (en) * 1998-11-24 2000-07-11 Motorola, Inc. Multi-mode transmitter and receiver
US6560296B1 (en) * 1999-05-04 2003-05-06 Lucent Technologies Inc. Method and apparatus for modulating digital data
US6674811B1 (en) * 2000-06-14 2004-01-06 Northrop Grumman Corporation Efficient pre-distorted 12/4 QAM modulator
GB2416254B (en) 2002-05-31 2006-06-28 Renesas Tech Corp Semiconductor integrated circuit for communication, radio-communications apparatus, and transmission starting method
GB2389251B (en) 2002-05-31 2005-09-07 Hitachi Ltd A communication semiconductor integrated circuit, a wireless communication apparatus, and a loop gain calibration method
GB2389253B (en) * 2002-05-31 2005-09-21 Hitachi Ltd Transmitter and semiconductor integrated circuit for communication
GB2389255B (en) 2002-05-31 2005-08-31 Hitachi Ltd Apparatus for radio telecommunication system and method of building up output power
US6816008B2 (en) * 2002-12-31 2004-11-09 Alion Science And Technology Corporation Quasi-linear multi-state digital modulation through non-linear amplifier arrays
US7680213B2 (en) * 2004-04-14 2010-03-16 Nokia Corporation Generating higher order modulation using QPSK modulations
US7078981B2 (en) * 2004-07-27 2006-07-18 Lucent Technologies Inc. 16 QAM modulator and method of 16 QAM modulation
US8070224B2 (en) * 2005-04-20 2011-12-06 Audiovox Corporation Vehicle entertainment system incorporated within the armrest/console of a vehicle
JP4497116B2 (ja) * 2006-03-17 2010-07-07 富士電機ホールディングス株式会社 信号発生回路
CN101933305B (zh) * 2008-01-31 2013-08-07 三菱电机株式会社 发送装置以及调制方法
IT1395091B1 (it) * 2009-04-10 2012-09-05 Siae Microelettronica Spa Metodo e relativo dispositivo di elaborazione di segnali digitali per la modulazione di ampiezza in quadratura
CN102291364B (zh) * 2010-06-17 2014-03-26 重庆无线绿洲通信技术有限公司 准完美周期16qam序列的生成方法及装置
RU2528390C1 (ru) * 2013-07-30 2014-09-20 Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования "ВОЕННАЯ АКАДЕМИЯ СВЯЗИ имени Маршала Советского Союза С.М. Буденного" Министерства обороны Российской Федерации Способ формирования сигналов квадратурной амплитудной манипуляции
RU2541502C1 (ru) * 2013-09-12 2015-02-20 Открытое акционерное общество "Научно-исследовательский институт телевидения" Способ формирования сигналов квадратурной амплитудной манипуляции
RU2562257C1 (ru) * 2014-02-24 2015-09-10 Закрытое акционерное общество ЗАО "ПРОЕКТНО-КОНСТРУКТОРСКОЕ БЮРО "РИО" Способ формирования сигналов квадратурной амплитудной манипуляции

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619782A (en) * 1966-01-28 1971-11-09 Hughes Aircraft Co Coherent catv transmission system
US3573644A (en) * 1969-03-20 1971-04-06 Hewlett Packard Co Dc stabilized wide band amplifier
US4039961A (en) * 1974-09-12 1977-08-02 Nippon Telegraph And Telephone Public Corporation Demodulator for combined digital amplitude and phase keyed modulation signals
JPS528763A (en) * 1975-07-09 1977-01-22 Nippon Telegr & Teleph Corp <Ntt> Amplitude phase modulator
DE2913669C2 (de) * 1979-04-05 1981-12-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zum Erzeugen von Modem-Sendesignalen mit Quadratur-Amplituden-Modulation QAM
NL8001903A (nl) * 1980-04-01 1981-11-02 Philips Nv Inrichting voor het versterken van een gemoduleerd draaggolfsignaal.
FR2482339A1 (fr) * 1980-05-07 1981-11-13 Veyres Camille Systeme de transmission radioelectrique blu utilisant deux frequences pilotes pour l'asservissement d'oscillateurs locaux

Also Published As

Publication number Publication date
EP0114761B1 (fr) 1987-10-14
US4571549A (en) 1986-02-18
JPH0423862B2 (fr) 1992-04-23
DE3466844D1 (en) 1987-11-19
JPS59135958A (ja) 1984-08-04
FR2539261A1 (fr) 1984-07-13
EP0114761A1 (fr) 1984-08-01

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Legal Events

Date Code Title Description
ST Notification of lapse