JPS54133812A - Phase synchronous circuit - Google Patents

Phase synchronous circuit

Info

Publication number
JPS54133812A
JPS54133812A JP4167278A JP4167278A JPS54133812A JP S54133812 A JPS54133812 A JP S54133812A JP 4167278 A JP4167278 A JP 4167278A JP 4167278 A JP4167278 A JP 4167278A JP S54133812 A JPS54133812 A JP S54133812A
Authority
JP
Japan
Prior art keywords
signal
data signal
phase
sub
psk
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.)
Granted
Application number
JP4167278A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6313381B2 (enrdf_load_stackoverflow
Inventor
Yasuharu Yoshida
Yoshimi Tagashira
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4167278A priority Critical patent/JPS54133812A/ja
Publication of JPS54133812A publication Critical patent/JPS54133812A/ja
Publication of JPS6313381B2 publication Critical patent/JPS6313381B2/ja
Granted 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
    • H04L27/18—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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP4167278A 1978-04-07 1978-04-07 Phase synchronous circuit Granted JPS54133812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4167278A JPS54133812A (en) 1978-04-07 1978-04-07 Phase synchronous circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4167278A JPS54133812A (en) 1978-04-07 1978-04-07 Phase synchronous circuit

Publications (2)

Publication Number Publication Date
JPS54133812A true JPS54133812A (en) 1979-10-17
JPS6313381B2 JPS6313381B2 (enrdf_load_stackoverflow) 1988-03-25

Family

ID=12614883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4167278A Granted JPS54133812A (en) 1978-04-07 1978-04-07 Phase synchronous circuit

Country Status (1)

Country Link
JP (1) JPS54133812A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59196651A (ja) * 1983-04-23 1984-11-08 Nec Corp 復調装置
US4498050A (en) * 1982-05-07 1985-02-05 Nec Corporation Demodulation device for composite PSK-PSK modulated waves
US7110476B1 (en) 1999-02-24 2006-09-19 Nec Corporation Demodulation and modulation circuit and demodulation and modulation method
JP2009038553A (ja) * 2007-08-01 2009-02-19 Nippon Telegr & Teleph Corp <Ntt> ディジタル伝送システム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934764A (enrdf_load_stackoverflow) * 1972-07-31 1974-03-30
JPS5336412A (en) * 1976-09-17 1978-04-04 Fujitsu Ltd Synchronous lead-in system for false 4-phase modulation signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4934764A (enrdf_load_stackoverflow) * 1972-07-31 1974-03-30
JPS5336412A (en) * 1976-09-17 1978-04-04 Fujitsu Ltd Synchronous lead-in system for false 4-phase modulation signal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498050A (en) * 1982-05-07 1985-02-05 Nec Corporation Demodulation device for composite PSK-PSK modulated waves
JPS59196651A (ja) * 1983-04-23 1984-11-08 Nec Corp 復調装置
US7110476B1 (en) 1999-02-24 2006-09-19 Nec Corporation Demodulation and modulation circuit and demodulation and modulation method
JP2009038553A (ja) * 2007-08-01 2009-02-19 Nippon Telegr & Teleph Corp <Ntt> ディジタル伝送システム

Also Published As

Publication number Publication date
JPS6313381B2 (enrdf_load_stackoverflow) 1988-03-25

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