JPS5271913A - Carrier wave reproducing circuit - Google Patents

Carrier wave reproducing circuit

Info

Publication number
JPS5271913A
JPS5271913A JP50148193A JP14819375A JPS5271913A JP S5271913 A JPS5271913 A JP S5271913A JP 50148193 A JP50148193 A JP 50148193A JP 14819375 A JP14819375 A JP 14819375A JP S5271913 A JPS5271913 A JP S5271913A
Authority
JP
Japan
Prior art keywords
carrier wave
reproducing circuit
wave reproducing
phase
wave
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.)
Pending
Application number
JP50148193A
Other languages
Japanese (ja)
Inventor
Kazuo Ogawa
Takayuki Ozaki
Hideki Nakamura
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 JP50148193A priority Critical patent/JPS5271913A/en
Publication of JPS5271913A publication Critical patent/JPS5271913A/en
Pending 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

Abstract

PURPOSE:To reproduce the carrier wave by adjusting the phase of the carrier wave, which is used when the modulated wave in DC-AC partial response modulation system is demodulated, to a required phase against the modulation vector.
JP50148193A 1975-12-11 1975-12-11 Carrier wave reproducing circuit Pending JPS5271913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50148193A JPS5271913A (en) 1975-12-11 1975-12-11 Carrier wave reproducing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50148193A JPS5271913A (en) 1975-12-11 1975-12-11 Carrier wave reproducing circuit

Publications (1)

Publication Number Publication Date
JPS5271913A true JPS5271913A (en) 1977-06-15

Family

ID=15447323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50148193A Pending JPS5271913A (en) 1975-12-11 1975-12-11 Carrier wave reproducing circuit

Country Status (1)

Country Link
JP (1) JPS5271913A (en)

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