DK717288A - DIGITAL DQPSK DECODER CIRCUIT - Google Patents
DIGITAL DQPSK DECODER CIRCUITInfo
- 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
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)
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 (en) | 1988-12-22 |
DK717288A true 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 (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69325332T2 (en) * | 1992-10-13 | 1999-11-04 | Nec Corp., Tokio/Tokyo | Frequency stabilizer in a radio communication system with phase shift keyed signals |
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)
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 active IP Right Grant
- 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 |
---|---|
CN1035597A (en) | 1989-09-13 |
FI890034A (en) | 1989-05-07 |
DK717288D0 (en) | 1988-12-22 |
EP0387245A1 (en) | 1990-09-19 |
FI89758C (en) | 1993-11-10 |
NO891817L (en) | 1989-05-18 |
NO891817D0 (en) | 1989-05-02 |
WO1989004572A1 (en) | 1989-05-18 |
DK170848B1 (en) | 1996-02-05 |
FI89758B (en) | 1993-07-30 |
NO180140C (en) | 1997-02-19 |
FI890034A0 (en) | 1989-01-04 |
CN1011463B (en) | 1991-01-30 |
DE3773399D1 (en) | 1991-10-31 |
NO180140B (en) | 1996-11-11 |
EP0387245B1 (en) | 1991-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B1 | Patent granted (law 1993) | ||
PUP | Patent expired |