DK717288A - Digitalt dqpsk dekoder-kredsloeb - Google Patents

Digitalt dqpsk dekoder-kredsloeb

Info

Publication number
DK717288A
DK717288A DK717288A DK717288A DK717288A DK 717288 A DK717288 A DK 717288A DK 717288 A DK717288 A DK 717288A DK 717288 A DK717288 A DK 717288A DK 717288 A DK717288 A DK 717288A
Authority
DK
Denmark
Prior art keywords
decoder circuit
digital
dqpsk decoder
digital dqpsk
circuit
Prior art date
Application number
DK717288A
Other languages
English (en)
Other versions
DK717288D0 (da
DK170848B1 (da
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 DK717288D0 publication Critical patent/DK717288D0/da
Publication of DK717288A publication Critical patent/DK717288A/da
Application granted granted Critical
Publication of DK170848B1 publication Critical patent/DK170848B1/da

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
DK717288A 1987-11-06 1988-12-22 Digitalt DQPSK dekoderkredsløb samt anvendelse af dekoderkredsløbet DK170848B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP8700683 1987-11-06
PCT/EP1987/000683 WO1989004572A1 (en) 1987-11-06 1987-11-06 Digital dqpsk decoder circuit element

Publications (3)

Publication Number Publication Date
DK717288D0 DK717288D0 (da) 1988-12-22
DK717288A true DK717288A (da) 1989-06-20
DK170848B1 DK170848B1 (da) 1996-02-05

Family

ID=8165215

Family Applications (1)

Application Number Title Priority Date Filing Date
DK717288A DK170848B1 (da) 1987-11-06 1988-12-22 Digitalt DQPSK dekoderkredsløb samt anvendelse af dekoderkredsløbet

Country Status (7)

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

Families Citing this family (4)

* 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
CN100438520C (zh) * 2003-12-25 2008-11-26 电子科技大学 1比特采样的差分四相相移键控的解调电路
US7469022B2 (en) * 2004-11-23 2008-12-23 Via Technologies, Inc. Methods and apparatus for symmetrical phase-shift keying
FR2982674B1 (fr) * 2011-11-10 2015-01-16 Renault Sas Procede et systeme de mesure de courant electrique

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
NO180140B (no) 1996-11-11
DE3773399D1 (de) 1991-10-31
FI89758C (fi) 1993-11-10
DK717288D0 (da) 1988-12-22
FI89758B (fi) 1993-07-30
EP0387245B1 (de) 1991-09-25
CN1011463B (zh) 1991-01-30
NO891817D0 (no) 1989-05-02
FI890034A0 (fi) 1989-01-04
WO1989004572A1 (en) 1989-05-18
FI890034A (fi) 1989-05-07
NO891817L (no) 1989-05-18
DK170848B1 (da) 1996-02-05
NO180140C (no) 1997-02-19
EP0387245A1 (de) 1990-09-19
CN1035597A (zh) 1989-09-13

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PUP Patent expired