FI914559L - Anordning foer automatisk frekvensreglering vid koherenta demodulatorer foer m-qam moduleringssystem. - Google Patents

Anordning foer automatisk frekvensreglering vid koherenta demodulatorer foer m-qam moduleringssystem. Download PDF

Info

Publication number: FI914559L
Authority: FI; Finland
Prior art keywords: foer; moduleringssystem; koherenta; frekvensreglering; demodulatorer
Prior art date: 1990-09-28

Application number

FI914559A

Other languages

English (en)

Other versions

FI914559A7 (fi

FI914559A0 (fi

Inventor

Roberto Colombo

Donna Giambattista Di

Original Assignee

Sits Soc It Telecom Siemens

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.)

1990-09-28

Filing date

1991-09-27

Publication date

1992-03-29

1991-09-27 Application filed by Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens

1991-09-27 Publication of FI914559A0 publication Critical patent/FI914559A0/fi

1992-03-29 Publication of FI914559A7 publication Critical patent/FI914559A7/fi

1992-03-29 Publication of FI914559L publication Critical patent/FI914559L/fi

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
- H04L27/38—Demodulator circuits; Receiver circuits
- H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
- H04L27/3827—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using only the demodulated baseband signals

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Radio Relay Systems (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

FI914559A 1990-09-28 1991-09-27 Anordning foer automatisk frekvensreglering vid koherenta demodulatorer foer m-qam moduleringssystem. FI914559L (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT02160790A IT1243086B (it)	1990-09-28	1990-09-28	Dispositivo per il controllo automatico di frequenza in demodulatori coerenti, per sistemi di modulazione m-qam

Publications (3)

Publication Number	Publication Date
FI914559A0 FI914559A0 (fi)	1991-09-27
FI914559A7 FI914559A7 (fi)	1992-03-29
FI914559L true FI914559L (fi)	1992-03-29

Family

ID=11184258

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI914559A FI914559L (fi)	1990-09-28	1991-09-27	Anordning foer automatisk frekvensreglering vid koherenta demodulatorer foer m-qam moduleringssystem.

Country Status (7)

Country	Link
EP (1)	EP0478080B1 (fi)
AU (1)	AU647522B2 (fi)
DE (1)	DE69132481T2 (fi)
FI (1)	FI914559L (fi)
IT (1)	IT1243086B (fi)
NO (1)	NO178319C (fi)
ZA (1)	ZA917756B (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2729033B1 (fr) *	1995-01-02	1997-04-04	Alcatel Telspace	Dispositif de recuperation de porteuse pour recepteur de signaux de type maq et recepteur l'employant
US5867503A (en) *	1996-01-30	1999-02-02	Mitsubishi Denki Kabushiki Kaisha	Digital sound broadcasting receiver and automatic phase controlling method therefor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS58221548A (ja) *	1982-06-18	1983-12-23	Fujitsu Ltd	位相同期回路
JPH0810879B2 (ja) *	1986-02-20	1996-01-31	富士通株式会社	復調装置

1990
- 1990-09-28 IT IT02160790A patent/IT1243086B/it active IP Right Grant
1991
- 1991-09-20 DE DE69132481T patent/DE69132481T2/de not_active Expired - Lifetime
- 1991-09-20 EP EP91202439A patent/EP0478080B1/en not_active Expired - Lifetime
- 1991-09-23 AU AU84660/91A patent/AU647522B2/en not_active Ceased
- 1991-09-27 ZA ZA917756A patent/ZA917756B/xx unknown
- 1991-09-27 FI FI914559A patent/FI914559L/fi not_active Application Discontinuation
- 1991-09-27 NO NO913806A patent/NO178319C/no unknown

Also Published As

Publication number	Publication date
NO913806D0 (no)	1991-09-27
NO913806L (no)	1992-03-30
AU647522B2 (en)	1994-03-24
AU8466091A (en)	1992-04-02
FI914559A7 (fi)	1992-03-29
DE69132481D1 (de)	2001-01-04
ZA917756B (en)	1992-05-27
EP0478080B1 (en)	2000-11-29
EP0478080A3 (en)	1993-02-24
NO178319C (no)	1996-02-28
IT1243086B (it)	1994-05-23
NO178319B (no)	1995-11-20
IT9021607A0 (it)	1990-09-28
EP0478080A2 (en)	1992-04-01
FI914559A0 (fi)	1991-09-27
IT9021607A1 (it)	1992-03-28
DE69132481T2 (de)	2001-07-05

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Legal Events

Date	Code	Title	Description
1999-03-31	FD	Application lapsed