JPH0379904B2 - - Google Patents

Info

Publication number
JPH0379904B2
JPH0379904B2 JP56015775A JP1577581A JPH0379904B2 JP H0379904 B2 JPH0379904 B2 JP H0379904B2 JP 56015775 A JP56015775 A JP 56015775A JP 1577581 A JP1577581 A JP 1577581A JP H0379904 B2 JPH0379904 B2 JP H0379904B2
Authority
JP
Japan
Prior art keywords
signal
output
phase
exclusive
digital converter
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.)
Expired - Lifetime
Application number
JP56015775A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57131151A (en
Inventor
Yasutsune Yoshida
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
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP56015775A priority Critical patent/JPS57131151A/ja
Publication of JPS57131151A publication Critical patent/JPS57131151A/ja
Publication of JPH0379904B2 publication Critical patent/JPH0379904B2/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
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP56015775A 1981-02-06 1981-02-06 Carrier wave reproducing circuit Granted JPS57131151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56015775A JPS57131151A (en) 1981-02-06 1981-02-06 Carrier wave reproducing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56015775A JPS57131151A (en) 1981-02-06 1981-02-06 Carrier wave reproducing circuit

Publications (2)

Publication Number Publication Date
JPS57131151A JPS57131151A (en) 1982-08-13
JPH0379904B2 true JPH0379904B2 (enrdf_load_stackoverflow) 1991-12-20

Family

ID=11898182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56015775A Granted JPS57131151A (en) 1981-02-06 1981-02-06 Carrier wave reproducing circuit

Country Status (1)

Country Link
JP (1) JPS57131151A (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939149A (ja) * 1982-08-28 1984-03-03 Nec Corp 多値直交振幅復調器
JPS6156555A (ja) * 1984-08-27 1986-03-22 Nec Corp 復調装置
US4703282A (en) 1985-06-29 1987-10-27 Nec Corporation Digital demodulation system
JPS6210950A (ja) * 1985-07-08 1987-01-19 Nec Corp デイジタル無線通信方式
US4726043A (en) * 1986-11-28 1988-02-16 American Telephone And Telegraph Company Data decision-directed timing and carrier recovery circuits
JPS63310252A (ja) * 1987-06-12 1988-12-19 Fujitsu Ltd 搬送波再生回路
JP2513318B2 (ja) * 1989-06-30 1996-07-03 日本電気株式会社 搬送波再生回路
US5134634A (en) * 1989-08-31 1992-07-28 Nec Corporation Multilevel quadrature amplitude demodulator capable of compensating for a quadrature phase deviation of a carrier signal pair
JP2540982B2 (ja) * 1990-04-26 1996-10-09 日本電気株式会社 ディジタル復調装置
JP2771365B2 (ja) * 1991-09-30 1998-07-02 福島日本電気株式会社 搬送波再生回路
JP3794412B2 (ja) 2002-03-11 2006-07-05 松下電器産業株式会社 搬送波再生装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55134563A (en) * 1979-04-05 1980-10-20 Nec Corp Offset qpsk phase difference detector

Also Published As

Publication number Publication date
JPS57131151A (en) 1982-08-13

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