IT971380B - Circuito riproduttore di portante in un demodulatore di un sistema di comunicazioni elettriche - Google Patents

Circuito riproduttore di portante in un demodulatore di un sistema di comunicazioni elettriche

Info

Publication number
IT971380B
IT971380B IT32295/72A IT3229572A IT971380B IT 971380 B IT971380 B IT 971380B IT 32295/72 A IT32295/72 A IT 32295/72A IT 3229572 A IT3229572 A IT 3229572A IT 971380 B IT971380 B IT 971380B
Authority
IT
Italy
Prior art keywords
demodulator
communication system
electrical communication
reproducer circuit
carrier reproducer
Prior art date
Application number
IT32295/72A
Other languages
English (en)
Italian (it)
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of IT971380B publication Critical patent/IT971380B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
IT32295/72A 1971-12-01 1972-11-30 Circuito riproduttore di portante in un demodulatore di un sistema di comunicazioni elettriche IT971380B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46096995A JPS4861063A (en, 2012) 1971-12-01 1971-12-01

Publications (1)

Publication Number Publication Date
IT971380B true IT971380B (it) 1974-04-30

Family

ID=14179760

Family Applications (1)

Application Number Title Priority Date Filing Date
IT32295/72A IT971380B (it) 1971-12-01 1972-11-30 Circuito riproduttore di portante in un demodulatore di un sistema di comunicazioni elettriche

Country Status (7)

Country Link
US (1) US3835404A (en, 2012)
JP (1) JPS4861063A (en, 2012)
CA (1) CA1003055A (en, 2012)
FR (1) FR2164175A5 (en, 2012)
GB (1) GB1404489A (en, 2012)
IT (1) IT971380B (en, 2012)
SU (1) SU574177A3 (en, 2012)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142408A (en) * 1976-05-21 1977-11-28 Nec Corp Clock extracting device in double two phase modulation system
CA1115789A (en) * 1977-05-12 1982-01-05 Richard P. Scott Phase shift keyed systems
FR2394218A1 (fr) * 1977-06-10 1979-01-05 Ibm France Recepteur de donnees transmises par modulation binaire par saut de phase entrelacee
GB1553654A (en) * 1978-02-17 1979-09-26 Marconi Co Ltd Marconi co ltd
JPS54121613A (en) * 1978-03-14 1979-09-20 Nec Corp Demodulator for fm modulation secondary signal
JPS6031368B2 (ja) * 1978-08-23 1985-07-22 富士通株式会社 帯域炉波器
JPS55132164A (en) * 1979-03-30 1980-10-14 Nec Corp Carrier regenerating circuit for psk demodulator
NL8603110A (nl) * 1986-12-08 1988-07-01 Philips Nv Schakeling voor het terugwinnen van een draaggolf.
US5182760A (en) * 1990-12-26 1993-01-26 Atlantic Richfield Company Demodulation system for phase shift keyed modulated data transmission
JP2808954B2 (ja) * 1991-11-13 1998-10-08 国際電信電話株式会社 無変調信号検出及び周波数引き込み装置
EP0589390A1 (de) * 1992-09-25 1994-03-30 Siemens Aktiengesellschaft Empfänger für phasenumgetastete Trägersignale
US5717722A (en) * 1994-11-08 1998-02-10 Anritsu Corporation Precision symbol demodulation system for multi-carrier modulation signal
FR2727813B1 (fr) * 1994-12-02 1997-01-10 Alcatel Telspace Dispositif de detection de presence ou d'absence d'une porteuse modulee en numerique, recepteur et procede correspondants
US6002274A (en) * 1995-09-29 1999-12-14 Dallas Semiconductor Oversampled state machine for jitter tolerant pulse detection
US6707863B1 (en) 1999-05-04 2004-03-16 Northrop Grumman Corporation Baseband signal carrier recovery of a suppressed carrier modulation signal
JP4607391B2 (ja) * 2001-08-29 2011-01-05 株式会社日立国際電気 搬送波抽出回路
DE10251176A1 (de) * 2002-10-31 2004-05-13 Siemens Ag Anordnung und Verfahren für eine Trägerrückgewinnung
JP4110081B2 (ja) * 2002-12-06 2008-07-02 ザインエレクトロニクス株式会社 位相選択型周波数変調装置及び位相選択型周波数シンセサイザ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937273A (en) * 1957-10-31 1960-05-17 Gen Dynamics Corp Detectors
NL280340A (en, 2012) * 1961-06-29 1900-01-01
GB1051757A (en, 2012) * 1963-05-09
US3349329A (en) * 1963-07-30 1967-10-24 Robertshaw Controls Co Means and method of reducing jitter distortion of binary data recovered from a communication wave
US3538446A (en) * 1967-12-21 1970-11-03 Varian Associates 0-180 phase shifter employing tandem multiplication and division stages
US3564433A (en) * 1969-08-26 1971-02-16 Stewart E Miller Multiphase differential-phase-modulated pcm repeater

Also Published As

Publication number Publication date
SU574177A3 (ru) 1977-09-25
US3835404A (en) 1974-09-10
DE2258274A1 (de) 1973-06-14
JPS4861063A (en, 2012) 1973-08-27
FR2164175A5 (en, 2012) 1973-07-27
CA1003055A (en) 1977-01-04
GB1404489A (en) 1975-08-28
DE2258274B2 (de) 1975-07-17

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