NO180140C - Digital DQPSK decodes subcircuit - Google Patents

Digital DQPSK decodes subcircuit

Info

Publication number
NO180140C
NO180140C NO891817A NO891817A NO180140C NO 180140 C NO180140 C NO 180140C NO 891817 A NO891817 A NO 891817A NO 891817 A NO891817 A NO 891817A NO 180140 C NO180140 C NO 180140C
Authority
NO
Norway
Prior art keywords
subcircuit
decodes
dqpsk
digital
digital dqpsk
Prior art date
Application number
NO891817A
Other languages
Norwegian (no)
Other versions
NO180140B (en
NO891817D0 (en
NO891817L (en
Inventor
Soenke Mehrgardt
Heinrich Pfeifer
Thomas Hilpert
Original Assignee
Itt Ind Gmbh Deutsche
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 Itt Ind Gmbh Deutsche filed Critical Itt Ind Gmbh Deutsche
Publication of NO891817D0 publication Critical patent/NO891817D0/en
Publication of NO891817L publication Critical patent/NO891817L/en
Publication of NO180140B publication Critical patent/NO180140B/en
Publication of NO180140C publication Critical patent/NO180140C/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Microcomputers (AREA)
NO891817A 1987-11-06 1989-05-02 Digital DQPSK decodes subcircuit NO180140C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1987/000683 WO1989004572A1 (en) 1987-11-06 1987-11-06 Digital dqpsk decoder circuit element

Publications (4)

Publication Number Publication Date
NO891817D0 NO891817D0 (en) 1989-05-02
NO891817L NO891817L (en) 1989-05-18
NO180140B NO180140B (en) 1996-11-11
NO180140C true NO180140C (en) 1997-02-19

Family

ID=8165215

Family Applications (1)

Application Number Title Priority Date Filing Date
NO891817A NO180140C (en) 1987-11-06 1989-05-02 Digital DQPSK decodes subcircuit

Country Status (7)

Country Link
EP (1) EP0387245B1 (en)
CN (1) CN1011463B (en)
DE (1) DE3773399D1 (en)
DK (1) DK170848B1 (en)
FI (1) FI89758C (en)
NO (1) NO180140C (en)
WO (1) WO1989004572A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU667959B2 (en) * 1992-10-13 1996-04-18 Nec Corporation Frequency stabilizer for use in phase-shift keying radio communications system
US7245672B2 (en) * 2002-06-27 2007-07-17 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for phase-domain semi-coherent demodulation
CN100438520C (en) * 2003-12-25 2008-11-26 电子科技大学 1 bit sampling differentiate four-phase PSK demodulation circuit and method
US7469022B2 (en) * 2004-11-23 2008-12-23 Via Technologies, Inc. Methods and apparatus for symmetrical phase-shift keying
FR2982674B1 (en) * 2011-11-10 2015-01-16 Renault Sas METHOD AND SYSTEM FOR MEASURING ELECTRICAL CURRENT

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019149A (en) * 1976-01-16 1977-04-19 Bell Telephone Laboratories, Incorporated Correlative data demodulator

Also Published As

Publication number Publication date
WO1989004572A1 (en) 1989-05-18
CN1011463B (en) 1991-01-30
CN1035597A (en) 1989-09-13
DK717288D0 (en) 1988-12-22
FI89758C (en) 1993-11-10
FI89758B (en) 1993-07-30
FI890034A0 (en) 1989-01-04
DK170848B1 (en) 1996-02-05
FI890034A7 (en) 1989-05-07
NO180140B (en) 1996-11-11
NO891817D0 (en) 1989-05-02
DE3773399D1 (en) 1991-10-31
EP0387245B1 (en) 1991-09-25
NO891817L (en) 1989-05-18
DK717288A (en) 1989-06-20
EP0387245A1 (en) 1990-09-19

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