[go: up one dir, main page]

DK170848B1 - Digitalt DQPSK dekoderkredsløb samt anvendelse af dekoderkredsløbet - Google Patents

Digitalt DQPSK dekoderkredsløb samt anvendelse af dekoderkredsløbet Download PDF

Info

Publication number
DK170848B1
DK170848B1 DK717288A DK717288A DK170848B1 DK 170848 B1 DK170848 B1 DK 170848B1 DK 717288 A DK717288 A DK 717288A DK 717288 A DK717288 A DK 717288A DK 170848 B1 DK170848 B1 DK 170848B1
Authority
DK
Denmark
Prior art keywords
circuit
output
data
input
phase
Prior art date
Application number
DK717288A
Other languages
Danish (da)
English (en)
Other versions
DK717288A (da
DK717288D0 (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

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 Digitalt DQPSK dekoderkredsløb samt anvendelse af dekoderkredsløbet DK170848B1 (da)

Applications Claiming Priority (2)

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

Publications (3)

Publication Number Publication Date
DK717288D0 DK717288D0 (da) 1988-12-22
DK717288A DK717288A (da) 1989-06-20
DK170848B1 true 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 (fi)
CN (1) CN1011463B (fi)
DE (1) DE3773399D1 (fi)
DK (1) DK170848B1 (fi)
FI (1) FI89758C (fi)
NO (1) NO180140C (fi)
WO (1) WO1989004572A1 (fi)

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
NO891817D0 (no) 1989-05-02
FI89758B (fi) 1993-07-30
FI89758C (fi) 1993-11-10
FI890034A (fi) 1989-05-07
DE3773399D1 (de) 1991-10-31
FI890034A0 (fi) 1989-01-04
NO180140B (no) 1996-11-11
CN1035597A (zh) 1989-09-13
NO180140C (no) 1997-02-19
EP0387245A1 (de) 1990-09-19
DK717288A (da) 1989-06-20
NO891817L (no) 1989-05-18
CN1011463B (zh) 1991-01-30
WO1989004572A1 (en) 1989-05-18
EP0387245B1 (de) 1991-09-25
DK717288D0 (da) 1988-12-22

Similar Documents

Publication Publication Date Title
US3887768A (en) Signal structures for double side band-quadrature carrier modulation
US3701948A (en) System for phase locking on a virtual carrier
US3392238A (en) Am phase-modulated polybinary data transmission system
EP0008491B1 (en) Digital demodulator for phase shift keyed signals
US4780884A (en) Suppressed double-sideband communication system
US3988539A (en) Data transmission system using optimal eight-vector signaling scheme
GB2213684A (en) Data demodulator baud clock phase locking
NO173120B (no) Lydkanalkrets for digitale fjernsynsmottagere
DK170848B1 (da) Digitalt DQPSK dekoderkredsløb samt anvendelse af dekoderkredsløbet
US5535245A (en) Modulation/demodulation circuit for a digital signal recorder/reproducer
US3669511A (en) System for phase locking on a virtual carrier received by an asymmetrical receiver
JPS58138153A (ja) ２進デ−タ伝送用符号処理装置
JP2823192B2 (ja) 受信装置
JP3244428B2 (ja) データ復調装置
CA1257656A (en) Suppressed double-sideband communication system
WO1985004541A1 (en) Single-sideband communication system
US4586023A (en) Means and method for data transmission on wired channels
CA1194169A (en) Coding for odd error multiplication in digital systems with differential coding
JP2536913B2 (ja) デジタルｄｑｐｓｋデコ―ダ回路
JPH06232930A (ja) クロック再生回路
JP2795761B2 (ja) Ｍｓｋ信号復調回路
CA2566295A1 (en) System and method for transmission and reception of qam signals at low signal to noise ratio
JPS6367851A (ja) フレーム同期信号伝送装置
US4800576A (en) Convolution data recovery circuit
JPH08251249A (ja) 直交変調信号の復調装置

Legal Events

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