JPS5531360A - Demodulator circuit - Google Patents

Demodulator circuit

Info

Publication number
JPS5531360A
JPS5531360A JP10506378A JP10506378A JPS5531360A JP S5531360 A JPS5531360 A JP S5531360A JP 10506378 A JP10506378 A JP 10506378A JP 10506378 A JP10506378 A JP 10506378A JP S5531360 A JPS5531360 A JP S5531360A
Authority
JP
Japan
Prior art keywords
circuit
output
supplied
branched
modulated 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.)
Granted
Application number
JP10506378A
Other languages
Japanese (ja)
Other versions
JPS61750B2 (en
Inventor
Ichiro Takase
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 JP10506378A priority Critical patent/JPS5531360A/en
Publication of JPS5531360A publication Critical patent/JPS5531360A/en
Publication of JPS61750B2 publication Critical patent/JPS61750B2/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
    • H04L27/2275—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To eliminate the higher-order component of the carrier through a simple circuit and thus to obtain the steady demodulated signal by identifying the polarity of the modulated wave via the double-multiplied carrier and then securing the exclusive logical sum. CONSTITUTION:The modulated wave supplied to input terminal 401 is branched into two parts. One of the branched waves is supplied to demodulator circuit 405 along with the other branched wave via double multiplier circuit 402, resonator 403 and slicer 404 each. The modulated wave is identified 503 at circuit 405 by the output of circuit 404, and at the same time the output of circuit 404 receives 1/2 division 504. And the output of circuits 503 and 504 are supplied to exclusive logical sum circuit 505, and the demodulated signal is obtained at the output of circuit 505.
JP10506378A 1978-08-28 1978-08-28 Demodulator circuit Granted JPS5531360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10506378A JPS5531360A (en) 1978-08-28 1978-08-28 Demodulator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10506378A JPS5531360A (en) 1978-08-28 1978-08-28 Demodulator circuit

Publications (2)

Publication Number Publication Date
JPS5531360A true JPS5531360A (en) 1980-03-05
JPS61750B2 JPS61750B2 (en) 1986-01-10

Family

ID=14397495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10506378A Granted JPS5531360A (en) 1978-08-28 1978-08-28 Demodulator circuit

Country Status (1)

Country Link
JP (1) JPS5531360A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63125881A (en) * 1986-11-07 1988-05-30 ダイムラー−ベンツ・アクチエンゲゼルシヤフト Device for penetrating conduit to wall in airtight and liquid-tight manner
EP0589390A1 (en) * 1992-09-25 1994-03-30 Siemens Aktiengesellschaft Receiver for phase shift modulated carrier signals
JPH0732278U (en) * 1993-11-24 1995-06-16 株式会社竹中工務店 Different diameter pipe joint

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63125881A (en) * 1986-11-07 1988-05-30 ダイムラー−ベンツ・アクチエンゲゼルシヤフト Device for penetrating conduit to wall in airtight and liquid-tight manner
EP0589390A1 (en) * 1992-09-25 1994-03-30 Siemens Aktiengesellschaft Receiver for phase shift modulated carrier signals
JPH0732278U (en) * 1993-11-24 1995-06-16 株式会社竹中工務店 Different diameter pipe joint

Also Published As

Publication number Publication date
JPS61750B2 (en) 1986-01-10

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