DK717288D0 - DIGITAL DQPSK DECODER CIRCUIT - Google Patents

DIGITAL DQPSK DECODER CIRCUIT

Info

Publication number: DK717288D0
Authority: DK; Denmark
Prior art keywords: decoder circuit; digital; dqpsk decoder; digital dqpsk; circuit
Prior art date: 1987-11-06

Application number

DK717288A

Other languages

Danish (da)

Other versions

DK717288A (en

DK170848B1 (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.)

1987-11-06

Filing date

1988-12-22

Publication date

1988-12-22

1988-12-22 Application filed by Itt Ind Gmbh Deutsche filed Critical Itt Ind Gmbh Deutsche

1988-12-22 Publication of DK717288D0 publication Critical patent/DK717288D0/en

1989-06-20 Publication of DK717288A publication Critical patent/DK717288A/en

1996-02-05 Application granted granted Critical

1996-02-05 Publication of DK170848B1 publication Critical patent/DK170848B1/en

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)

DK717288A 1987-11-06 1988-12-22 Digital DQPSK decoder circuit and use of the decoder circuit DK170848B1 (en)

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 true DK717288D0 (en)	1988-12-22
DK717288A DK717288A (en)	1989-06-20
DK170848B1 DK170848B1 (en)	1996-02-05

Family

ID=8165215

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK717288A DK170848B1 (en)	1987-11-06	1988-12-22	Digital DQPSK decoder circuit and use of the decoder circuit

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
EP0592978B1 (en) *	1992-10-13	1999-06-16	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

1987
- 1987-11-06 WO PCT/EP1987/000683 patent/WO1989004572A1/en not_active Ceased
- 1987-11-06 DE DE8787907755T patent/DE3773399D1/en not_active Expired - Lifetime
- 1987-11-06 EP EP87907755A patent/EP0387245B1/en not_active Expired - Lifetime
1988
- 1988-11-04 CN CN88107543A patent/CN1011463B/en not_active Expired
- 1988-12-22 DK DK717288A patent/DK170848B1/en not_active IP Right Cessation
1989
- 1989-01-04 FI FI890034A patent/FI89758C/en not_active IP Right Cessation
- 1989-05-02 NO NO891817A patent/NO180140C/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
FI89758C (en)	1993-11-10
NO180140C (en)	1997-02-19
CN1035597A (en)	1989-09-13
EP0387245A1 (en)	1990-09-19
FI890034A7 (en)	1989-05-07
FI890034A0 (en)	1989-01-04
DK717288A (en)	1989-06-20
NO180140B (en)	1996-11-11
NO891817L (en)	1989-05-18
FI89758B (en)	1993-07-30
CN1011463B (en)	1991-01-30
NO891817D0 (en)	1989-05-02
EP0387245B1 (en)	1991-09-25
DK170848B1 (en)	1996-02-05
WO1989004572A1 (en)	1989-05-18
DE3773399D1 (en)	1991-10-31

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Legal Events

Date	Code	Title	Description
1996-02-05	B1	Patent granted (law 1993)
2007-11-26	PUP	Patent expired