JPS56154859A - Carrier wave regenerating circuit - Google Patents

Carrier wave regenerating circuit

Info

Publication number
JPS56154859A
JPS56154859A JP5760380A JP5760380A JPS56154859A JP S56154859 A JPS56154859 A JP S56154859A JP 5760380 A JP5760380 A JP 5760380A JP 5760380 A JP5760380 A JP 5760380A JP S56154859 A JPS56154859 A JP S56154859A
Authority
JP
Japan
Prior art keywords
output
frequency
oscillator
oscillation frequency
difference
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
JP5760380A
Other languages
English (en)
Japanese (ja)
Other versions
JPS644386B2 (enrdf_load_stackoverflow
Inventor
Susumu Sasaki
Eiji Suzuki
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 JP5760380A priority Critical patent/JPS56154859A/ja
Publication of JPS56154859A publication Critical patent/JPS56154859A/ja
Publication of JPS644386B2 publication Critical patent/JPS644386B2/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
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP5760380A 1980-04-30 1980-04-30 Carrier wave regenerating circuit Granted JPS56154859A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5760380A JPS56154859A (en) 1980-04-30 1980-04-30 Carrier wave regenerating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5760380A JPS56154859A (en) 1980-04-30 1980-04-30 Carrier wave regenerating circuit

Publications (2)

Publication Number Publication Date
JPS56154859A true JPS56154859A (en) 1981-11-30
JPS644386B2 JPS644386B2 (enrdf_load_stackoverflow) 1989-01-25

Family

ID=13060425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5760380A Granted JPS56154859A (en) 1980-04-30 1980-04-30 Carrier wave regenerating circuit

Country Status (1)

Country Link
JP (1) JPS56154859A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190034A (ja) * 1984-03-12 1985-09-27 Hitachi Ltd 周波数オフセツト歪初期補正等化方式
JPS63107256A (ja) * 1986-10-24 1988-05-12 Nec Corp 搬送波同期回路
JPH0211047A (ja) * 1988-06-29 1990-01-16 Matsushita Electric Ind Co Ltd 搬送波再生回路
US5444736A (en) * 1991-07-22 1995-08-22 Kabushiki Kaisha Toshiba Radio communication apparatus having an automatic frequency control circuit for controlling a transmission frequency on the basis of a reception frequency
US8023829B2 (en) 2005-08-23 2011-09-20 Qinetiq Limited Demodulation of phase modulated fibre-optic sensor system signals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190034A (ja) * 1984-03-12 1985-09-27 Hitachi Ltd 周波数オフセツト歪初期補正等化方式
JPS63107256A (ja) * 1986-10-24 1988-05-12 Nec Corp 搬送波同期回路
JPH0211047A (ja) * 1988-06-29 1990-01-16 Matsushita Electric Ind Co Ltd 搬送波再生回路
US5444736A (en) * 1991-07-22 1995-08-22 Kabushiki Kaisha Toshiba Radio communication apparatus having an automatic frequency control circuit for controlling a transmission frequency on the basis of a reception frequency
US8023829B2 (en) 2005-08-23 2011-09-20 Qinetiq Limited Demodulation of phase modulated fibre-optic sensor system signals

Also Published As

Publication number Publication date
JPS644386B2 (enrdf_load_stackoverflow) 1989-01-25

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