IT1128969B - Ricevitore numerico per segnali trasmessi con modulazione di fase differenziale a quattro stati - Google Patents

Ricevitore numerico per segnali trasmessi con modulazione di fase differenziale a quattro stati

Info

Publication number
IT1128969B
IT1128969B IT68262/80A IT6826280A IT1128969B IT 1128969 B IT1128969 B IT 1128969B IT 68262/80 A IT68262/80 A IT 68262/80A IT 6826280 A IT6826280 A IT 6826280A IT 1128969 B IT1128969 B IT 1128969B
Authority
IT
Italy
Prior art keywords
numeric
receiver
signals transmitted
phase modulation
differential phase
Prior art date
Application number
IT68262/80A
Other languages
English (en)
Other versions
IT8068262A0 (it
Inventor
Paolo Di Tria
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT68262/80A priority Critical patent/IT1128969B/it
Publication of IT8068262A0 publication Critical patent/IT8068262A0/it
Priority to EP81106055A priority patent/EP0045923B1/en
Priority to DE8181106055T priority patent/DE3167310D1/de
Priority to US06/290,501 priority patent/US4380081A/en
Application granted granted Critical
Publication of IT1128969B publication Critical patent/IT1128969B/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
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2272—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals using phase locked loops

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
IT68262/80A 1980-08-07 1980-08-07 Ricevitore numerico per segnali trasmessi con modulazione di fase differenziale a quattro stati IT1128969B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT68262/80A IT1128969B (it) 1980-08-07 1980-08-07 Ricevitore numerico per segnali trasmessi con modulazione di fase differenziale a quattro stati
EP81106055A EP0045923B1 (en) 1980-08-07 1981-08-02 Digital receiver for four-phase differential modulated signals
DE8181106055T DE3167310D1 (en) 1980-08-07 1981-08-02 Digital receiver for four-phase differential modulated signals
US06/290,501 US4380081A (en) 1980-08-07 1981-08-06 Digital receiver for four-phase-modulated carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68262/80A IT1128969B (it) 1980-08-07 1980-08-07 Ricevitore numerico per segnali trasmessi con modulazione di fase differenziale a quattro stati

Publications (2)

Publication Number Publication Date
IT8068262A0 IT8068262A0 (it) 1980-08-07
IT1128969B true IT1128969B (it) 1986-06-04

Family

ID=11308744

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68262/80A IT1128969B (it) 1980-08-07 1980-08-07 Ricevitore numerico per segnali trasmessi con modulazione di fase differenziale a quattro stati

Country Status (4)

Country Link
US (1) US4380081A (it)
EP (1) EP0045923B1 (it)
DE (1) DE3167310D1 (it)
IT (1) IT1128969B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584695A (en) * 1983-11-09 1986-04-22 National Semiconductor Corporation Digital PLL decoder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1580108A (it) * 1966-03-02 1969-09-05
FR2045175A5 (it) * 1969-06-13 1971-02-26 Materiel Telephonique
US3938052A (en) * 1974-05-09 1976-02-10 Teletype Corporation Digital demodulator for phase-modulated waveforms
NL7902340A (nl) * 1979-03-26 1980-09-30 Philips Nv Werkwijze voor het synchroniseren van de quadphase- ontvanger en kloksynchronisatie-inrichting voor het uitvoeren van de werkwijze.

Also Published As

Publication number Publication date
EP0045923B1 (en) 1984-11-21
IT8068262A0 (it) 1980-08-07
DE3167310D1 (en) 1985-01-03
EP0045923A1 (en) 1982-02-17
US4380081A (en) 1983-04-12

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