DE69918785D1 - Trägerrückgewinnung sowie Demodulator für PSK-Signale - Google Patents
Trägerrückgewinnung sowie Demodulator für PSK-SignaleInfo
- Publication number
- DE69918785D1 DE69918785D1 DE69918785T DE69918785T DE69918785D1 DE 69918785 D1 DE69918785 D1 DE 69918785D1 DE 69918785 T DE69918785 T DE 69918785T DE 69918785 T DE69918785 T DE 69918785T DE 69918785 D1 DE69918785 D1 DE 69918785D1
- Authority
- DE
- Germany
- Prior art keywords
- phase
- incoming
- modulated carrier
- local oscillator
- circuit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000011084 recovery Methods 0.000 title abstract 2
- 230000001427 coherent effect Effects 0.000 abstract 1
- 230000010363 phase shift Effects 0.000 abstract 1
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
- H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
- H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
- H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
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)
- Communication Control (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US211550 | 1988-06-24 | ||
| US09/211,550 US6163208A (en) | 1998-12-15 | 1998-12-15 | One bit digital phase shift keyed carrier recovery and demodulator circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69918785D1 true DE69918785D1 (de) | 2004-08-26 |
| DE69918785T2 DE69918785T2 (de) | 2005-08-18 |
Family
ID=22787398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69918785T Expired - Lifetime DE69918785T2 (de) | 1998-12-15 | 1999-09-16 | Trägerrückgewinnung sowie Demodulator für PSK-Signale |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6163208A (de) |
| EP (1) | EP1011233B1 (de) |
| AT (1) | ATE271738T1 (de) |
| DE (1) | DE69918785T2 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6717462B2 (en) * | 2002-04-15 | 2004-04-06 | The Boeing Company | QPSK and 16 QAM self-generating synchronous direct downconversion demodulator |
| US6970020B1 (en) * | 2003-12-17 | 2005-11-29 | Altera Corporation | Half-rate linear quardrature phase detector for clock recovery |
| KR100641571B1 (ko) * | 2005-01-05 | 2006-10-31 | 주식회사 팬택앤큐리텔 | 이동통신 단말기에서의 클럭 발생 장치 |
| DE102007002302A1 (de) * | 2007-01-16 | 2008-07-24 | Austriamicrosystems Ag | Anordnung und Verfahren zur Rückgewinnung eines Trägersignals und Demodulationseinrichtung |
| EP2179504B1 (de) * | 2007-05-08 | 2011-02-23 | Nxp B.V. | Kalibrationsfreie lokale oszillatorsignalerzeugung für einen oberwellenunterdrückungsmischer |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3739277A (en) * | 1969-06-02 | 1973-06-12 | Hallicrafters Co | Digital data transmission system utilizing phase shift keying |
| DE2043164B2 (de) * | 1970-08-31 | 1972-10-12 | Siemens AG, 1000 Berlin u. 8000 München | Schaltungsanordnung zur demodulation von phasendifferenzmodulierten datensignalen |
| EP0451289B1 (de) * | 1989-10-23 | 2000-07-26 | Nippon Telegraph And Telephone Corporation | Referenzsignalgenerator und diesen enthaltenden digitaler Demodulator |
| JPH0642685B2 (ja) * | 1990-07-05 | 1994-06-01 | 日本無線株式会社 | 遅延検波回路 |
| EP0467712B1 (de) * | 1990-07-20 | 1998-04-29 | Nec Corporation | Phasendemodulator für PSK-modulierte Signale |
| US5355092A (en) * | 1992-06-26 | 1994-10-11 | Sanyo Electric Co., Ltd. | Relatively simple QPSK demodulator, that uses substantially all digital circuitry and an internally generated symbol clock, and circuitry for use therein |
| US5376894A (en) * | 1992-12-31 | 1994-12-27 | Pacific Communication Sciences, Inc. | Phase estimation and synchronization using a PSK demodulator |
| JP3414052B2 (ja) * | 1995-05-18 | 2003-06-09 | 三菱電機株式会社 | 位相変調信号復調方式 |
| JP3552183B2 (ja) * | 1996-08-01 | 2004-08-11 | 松下電器産業株式会社 | 搬送波再生方法および装置 |
-
1998
- 1998-12-15 US US09/211,550 patent/US6163208A/en not_active Expired - Lifetime
-
1999
- 1999-09-16 EP EP99307348A patent/EP1011233B1/de not_active Expired - Lifetime
- 1999-09-16 DE DE69918785T patent/DE69918785T2/de not_active Expired - Lifetime
- 1999-09-16 AT AT99307348T patent/ATE271738T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1011233A2 (de) | 2000-06-21 |
| US6163208A (en) | 2000-12-19 |
| DE69918785T2 (de) | 2005-08-18 |
| ATE271738T1 (de) | 2004-08-15 |
| EP1011233B1 (de) | 2004-07-21 |
| EP1011233A3 (de) | 2002-07-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |