JPS57190447A - Phase regenerator - Google Patents

Phase regenerator

Info

Publication number
JPS57190447A
JPS57190447A JP7478981A JP7478981A JPS57190447A JP S57190447 A JPS57190447 A JP S57190447A JP 7478981 A JP7478981 A JP 7478981A JP 7478981 A JP7478981 A JP 7478981A JP S57190447 A JPS57190447 A JP S57190447A
Authority
JP
Japan
Prior art keywords
phase
phases
mixer
filter
frequency
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
JP7478981A
Other languages
Japanese (ja)
Inventor
Masaaki Atobe
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 JP7478981A priority Critical patent/JPS57190447A/en
Publication of JPS57190447A publication Critical patent/JPS57190447A/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
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking

Abstract

PURPOSE:To enable a simple filter to be used and fix the phase of a polyphase modulating signal of which number of phases is larger than 2 in addition to 2 phases even if the frequency of carriers is charged by adopting a mixer consisting of non-linear resistance. CONSTITUTION:Since a phase regenerative circuit (mixer) 14 has a phase regenerative characteristic, namely, a phase jitter removing function and enables the band of a signal passing through a filter 17 to extend sharply, it can reduce the sum of passing delay time of the phase regenerative circuit (mixer) 14, the filter 17 and a multiplier 18. Therefore, phase variation DELTAthetag due to the variation of input frequency of an output (g) from a frequency divider 19 is reduced and a signal obtained by multiplying the output is applied to one of input terminals of hemixer 14, so that a polyphase modulating signal of which number of phases is larger than 2 in addition to 2 phases can be regenerated.
JP7478981A 1981-05-20 1981-05-20 Phase regenerator Pending JPS57190447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7478981A JPS57190447A (en) 1981-05-20 1981-05-20 Phase regenerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7478981A JPS57190447A (en) 1981-05-20 1981-05-20 Phase regenerator

Publications (1)

Publication Number Publication Date
JPS57190447A true JPS57190447A (en) 1982-11-24

Family

ID=13557401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7478981A Pending JPS57190447A (en) 1981-05-20 1981-05-20 Phase regenerator

Country Status (1)

Country Link
JP (1) JPS57190447A (en)

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