IT1035629B - Impianto e procedimento per trasmettere e ricevere segnali su portante quadrifase per comunicazioni - Google Patents

Impianto e procedimento per trasmettere e ricevere segnali su portante quadrifase per comunicazioni

Info

Publication number
IT1035629B
IT1035629B IT4945275A IT4945275A IT1035629B IT 1035629 B IT1035629 B IT 1035629B IT 4945275 A IT4945275 A IT 4945275A IT 4945275 A IT4945275 A IT 4945275A IT 1035629 B IT1035629 B IT 1035629B
Authority
IT
Italy
Prior art keywords
communications
procedure
transmitting
receiving signals
phase carrier
Prior art date
Application number
IT4945275A
Other languages
English (en)
Original Assignee
Avantek
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
Priority claimed from US05/467,656 external-priority patent/US3931472A/en
Application filed by Avantek filed Critical Avantek
Application granted granted Critical
Publication of IT1035629B publication Critical patent/IT1035629B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/12—Channels characterised by the type of signal the signals being represented by different phase modulations of a single carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
IT4945275A 1974-05-07 1975-05-06 Impianto e procedimento per trasmettere e ricevere segnali su portante quadrifase per comunicazioni IT1035629B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/467,656 US3931472A (en) 1972-02-14 1974-05-07 Asynchronous quadriphase communications system and method

Publications (1)

Publication Number Publication Date
IT1035629B true IT1035629B (it) 1979-10-20

Family

ID=23856589

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4945275A IT1035629B (it) 1974-05-07 1975-05-06 Impianto e procedimento per trasmettere e ricevere segnali su portante quadrifase per comunicazioni

Country Status (4)

Country Link
JP (1) JPS588623B2 (it)
CA (1) CA1035060A (it)
GB (1) GB1511343A (it)
IT (1) IT1035629B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134814A (ja) * 1984-07-27 1986-02-19 日立電線株式会社 遮水ケ−ブルの製造方法
JPS62201151U (it) * 1986-06-14 1987-12-22

Also Published As

Publication number Publication date
CA1035060A (en) 1978-07-18
GB1511343A (en) 1978-05-17
JPS588623B2 (ja) 1983-02-16
JPS5124109A (ja) 1976-02-26

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