JPS5336412A - Synchronous lead-in system for false 4-phase modulation signal - Google Patents

Synchronous lead-in system for false 4-phase modulation signal

Info

Publication number
JPS5336412A
JPS5336412A JP11069576A JP11069576A JPS5336412A JP S5336412 A JPS5336412 A JP S5336412A JP 11069576 A JP11069576 A JP 11069576A JP 11069576 A JP11069576 A JP 11069576A JP S5336412 A JPS5336412 A JP S5336412A
Authority
JP
Japan
Prior art keywords
false
modulation signal
phase modulation
synchronous lead
phase
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
JP11069576A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6142467B2 (enExample
Inventor
Toshitaka Tsuda
Kazuo Murano
Shigeyuki Umigami
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.)
Fujitsu Ltd
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
Priority to JP11069576A priority Critical patent/JPS5336412A/ja
Publication of JPS5336412A publication Critical patent/JPS5336412A/ja
Publication of JPS6142467B2 publication Critical patent/JPS6142467B2/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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
JP11069576A 1976-09-17 1976-09-17 Synchronous lead-in system for false 4-phase modulation signal Granted JPS5336412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11069576A JPS5336412A (en) 1976-09-17 1976-09-17 Synchronous lead-in system for false 4-phase modulation signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11069576A JPS5336412A (en) 1976-09-17 1976-09-17 Synchronous lead-in system for false 4-phase modulation signal

Publications (2)

Publication Number Publication Date
JPS5336412A true JPS5336412A (en) 1978-04-04
JPS6142467B2 JPS6142467B2 (enExample) 1986-09-20

Family

ID=14542098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11069576A Granted JPS5336412A (en) 1976-09-17 1976-09-17 Synchronous lead-in system for false 4-phase modulation signal

Country Status (1)

Country Link
JP (1) JPS5336412A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133812A (en) * 1978-04-07 1979-10-17 Nec Corp Phase synchronous circuit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111565270B (zh) 2019-02-13 2024-05-03 株式会社理光 拍摄装置及拍摄光学系统
CN111565269B (zh) 2019-02-13 2024-05-03 株式会社理光 拍摄装置
CN111565268B (zh) 2019-02-13 2024-04-19 株式会社理光 拍摄装置及拍摄光学系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54133812A (en) * 1978-04-07 1979-10-17 Nec Corp Phase synchronous circuit

Also Published As

Publication number Publication date
JPS6142467B2 (enExample) 1986-09-20

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