FI861757A - Krets foer aotervaendande av en baervaog i ett digitalt oeverfoeringssystem. - Google Patents
Krets foer aotervaendande av en baervaog i ett digitalt oeverfoeringssystem. Download PDFInfo
- Publication number
- FI861757A FI861757A FI861757A FI861757A FI861757A FI 861757 A FI861757 A FI 861757A FI 861757 A FI861757 A FI 861757A FI 861757 A FI861757 A FI 861757A FI 861757 A FI861757 A FI 861757A
- Authority
- FI
- Finland
- Prior art keywords
- oeverfoeringssystem
- baervaog
- aotervaendande
- digitalt
- ett
- 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
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/003—Correction of carrier offset at baseband only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/0038—Correction of carrier offset using an equaliser
- H04L2027/0042—Correction of carrier offset using an equaliser the equaliser providing the offset correction per se
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0063—Elements of loops
- H04L2027/0067—Phase error detectors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Communication Control (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8506561 | 1985-04-30 | ||
FR8506561A FR2581277A1 (fr) | 1985-04-30 | 1985-04-30 | Circuit de recuperation de l'onde porteuse de systemes de transmissions numeriques |
Publications (4)
Publication Number | Publication Date |
---|---|
FI861757A0 FI861757A0 (fi) | 1986-04-25 |
FI861757A true FI861757A (fi) | 1986-10-31 |
FI86126B FI86126B (fi) | 1992-03-31 |
FI86126C FI86126C (fi) | 1992-07-10 |
Family
ID=9318824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI861757A FI86126C (fi) | 1985-04-30 | 1986-04-25 | Krets foer aoterfoering av en baervaog i ett digitalt oeverfoeringssystem. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4687999A (fi) |
EP (1) | EP0200271B1 (fi) |
JP (1) | JPH0793644B2 (fi) |
AU (1) | AU5676986A (fi) |
CA (1) | CA1256953A (fi) |
DE (1) | DE3668741D1 (fi) |
FI (1) | FI86126C (fi) |
FR (1) | FR2581277A1 (fi) |
NO (1) | NO172670C (fi) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3619744A1 (de) * | 1986-06-12 | 1987-12-17 | Ant Nachrichtentech | Verfahren zum gewinnen eines phasendifferenzsignals |
US4860320A (en) * | 1986-06-12 | 1989-08-22 | Ant Nachrichtentechnik Gmbh | Method for recovering a control signal for controlling the phase of a local carrier signal |
EP0281652B1 (de) * | 1987-03-10 | 1990-12-05 | ANT Nachrichtentechnik GmbH | Verfahren zum Gewinnen eines Phasendifferenzsignals |
US4736386A (en) * | 1987-04-06 | 1988-04-05 | Rockwell International Corporation | Carrier out-of-lock detector apparatus |
US4771438A (en) * | 1987-08-04 | 1988-09-13 | Hayes Microcomputer Products, Inc. | Method and apparatus for phase reference recovery in high speed fast turnaround modem |
FR2620885B1 (fr) * | 1987-09-18 | 1990-11-16 | Alcatel Thomson Faisceaux | Procede de detection de faux accrochages du signal reference sur le signal a demoduler en demodulation numerique coherente et dispositif mettant en oeuvre un tel procede |
FR2621188B1 (fr) * | 1987-09-25 | 1989-12-29 | Labo Electronique Physique | Circuit de recuperation de l'onde porteuse de systemes de transmissions numeriques |
FR2627653B1 (fr) * | 1988-02-18 | 1994-04-08 | Alcatel Thomson Faisceaux Hertzi | Procede d'asservissement de l'instant de regeneration dans une transmission numerique utilisant une modulation de porteuse selon deux axes en quadrature et dispositif de mise en oeuvre de ce procede |
JPH02217045A (ja) * | 1989-02-17 | 1990-08-29 | Fujitsu Ltd | 信号点配置方式 |
US4959844A (en) * | 1989-10-24 | 1990-09-25 | Amp Incorporated | Clock recovery circuit for digital demodulator |
US5287351A (en) * | 1990-11-27 | 1994-02-15 | Scientific-Atlanta, Inc. | Method and apparatus for minimizing error propagation in correlative digital and communication system |
AU1918892A (en) * | 1991-05-10 | 1992-12-30 | Echelon Corporation | Power line communication while avoiding determinable interference harmonics |
US5271041A (en) * | 1992-03-16 | 1993-12-14 | Scientific-Atlanta, Inc. | Method and apparatus for QPR carrier recovery |
GB2282030B (en) * | 1993-09-14 | 1997-09-24 | Plessey Semiconductors Ltd | Direct conversion receiver |
US5528632A (en) * | 1994-07-28 | 1996-06-18 | Motorola, Inc. | Non-complex dual-correlation phase reversal detector and method |
FR2725097B1 (fr) * | 1994-09-23 | 1997-01-17 | France Telecom | Procede et dispositif d'evaluation numerique de la phase d'une porteuse modulee |
JP3540393B2 (ja) * | 1994-10-31 | 2004-07-07 | 三洋電機株式会社 | コスタスループ |
EP0719002B1 (en) * | 1994-12-22 | 2004-12-08 | Alcatel | Carrier recovery processor |
AUPN455695A0 (en) * | 1995-08-01 | 1995-08-24 | Canon Kabushiki Kaisha | Qam spread spectrum demodulation system |
US5640425A (en) * | 1995-12-26 | 1997-06-17 | Golden Bridge Technology, Inc. | Fast-acting costas loop |
DE59709234D1 (de) * | 1997-07-31 | 2003-03-06 | Micronas Semiconductor Holding | Trägerregelkreis für einen Empfänger von digital übertragenen Signalen |
DE19733732C2 (de) * | 1997-08-04 | 1999-05-12 | Siemens Ag | Verfahren zur Unterstützung der einfachen Synchronisierung auf den Träger eines energieverwischten QPSK-Signals |
US6738429B1 (en) * | 1999-06-01 | 2004-05-18 | Harris Corporation | Decision-directed carrier frequency detector and method for QAM |
EP1503500B1 (en) * | 2003-07-28 | 2006-06-28 | Frank Dr.-Ir. Op 't Eynde | A phase-locked loop |
US7355470B2 (en) | 2006-04-24 | 2008-04-08 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
US7327803B2 (en) | 2004-10-22 | 2008-02-05 | Parkervision, Inc. | Systems and methods for vector power amplification |
EP1742435A3 (fr) * | 2005-07-05 | 2008-05-14 | St Microelectronics S.A. | Estimation de l'amplitude d'un signal binaire bruité |
US7911272B2 (en) | 2007-06-19 | 2011-03-22 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments |
US8013675B2 (en) | 2007-06-19 | 2011-09-06 | Parkervision, Inc. | Combiner-less multiple input single output (MISO) amplification with blended control |
US8031804B2 (en) | 2006-04-24 | 2011-10-04 | Parkervision, Inc. | Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion |
US8315336B2 (en) | 2007-05-18 | 2012-11-20 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment |
DE102006062519A1 (de) * | 2006-12-29 | 2008-07-03 | Micronas Gmbh | Vorrichtung und Verfahren zum Entscheiden eines Symbols beim Empfang eines mit einem Quadratursignalpaar gekoppelten Signals zur QAM-Frequenzregelung und/oder Rotationsregelung |
WO2009005768A1 (en) | 2007-06-28 | 2009-01-08 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
WO2009145887A1 (en) | 2008-05-27 | 2009-12-03 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
EP2695294A1 (en) | 2011-04-08 | 2014-02-12 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
EP2715867A4 (en) | 2011-06-02 | 2014-12-17 | Parkervision Inc | ANTENNA CONTROL |
EP3047348A4 (en) | 2013-09-17 | 2016-09-07 | Parkervision Inc | METHOD, DEVICE AND SYSTEM FOR THE PRESENTATION OF A MEDIA TIME FUNCTION |
CN113872902B (zh) * | 2020-06-30 | 2023-04-07 | 华为技术有限公司 | 信号调制电路、方法及相关产品 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5716546B2 (fi) * | 1973-07-12 | 1982-04-06 | ||
JPS5820181B2 (ja) * | 1974-09-25 | 1983-04-21 | 日本電気株式会社 | タソウイソウドウキフクチヨウソウチ |
JPS5917916B2 (ja) * | 1975-12-26 | 1984-04-24 | 日本電気株式会社 | イソウドウキソウチ |
US4334312A (en) * | 1979-08-10 | 1982-06-08 | Nippon Electric Co., Ltd. | Phase synchronizing circuit for use in multi-level, multi-phase, superposition-modulated signal transmission system |
FR2542536B1 (fr) * | 1983-03-07 | 1985-07-12 | Trt Telecom Radio Electr | Dispositif de recuperation de la porteuse d'un signal d'entree module par sauts d'amplitude et par sauts de phase |
FR2552959B1 (fr) * | 1983-10-04 | 1985-10-25 | Vandamme Patrick | Circuit de recuperation d'une onde porteuse muni d'un moyen d'aide a l'acquisition automatique et rapide |
US4571550A (en) * | 1984-06-22 | 1986-02-18 | Rockwell International Corporation | QAM Demodulator carrier recovery loop using n-m LSB's |
-
1985
- 1985-04-30 FR FR8506561A patent/FR2581277A1/fr not_active Withdrawn
-
1986
- 1986-04-23 US US06/855,527 patent/US4687999A/en not_active Expired - Lifetime
- 1986-04-24 CA CA000507482A patent/CA1256953A/en not_active Expired
- 1986-04-25 DE DE8686200712T patent/DE3668741D1/de not_active Expired - Lifetime
- 1986-04-25 EP EP86200712A patent/EP0200271B1/fr not_active Expired - Lifetime
- 1986-04-25 FI FI861757A patent/FI86126C/fi not_active IP Right Cessation
- 1986-04-28 NO NO861664A patent/NO172670C/no unknown
- 1986-04-28 AU AU56769/86A patent/AU5676986A/en not_active Abandoned
- 1986-04-30 JP JP61098394A patent/JPH0793644B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4687999A (en) | 1987-08-18 |
NO861664L (no) | 1986-10-31 |
EP0200271B1 (fr) | 1990-01-31 |
JPH0793644B2 (ja) | 1995-10-09 |
CA1256953A (en) | 1989-07-04 |
FR2581277A1 (fr) | 1986-10-31 |
FI861757A0 (fi) | 1986-04-25 |
FI86126C (fi) | 1992-07-10 |
NO172670C (no) | 1993-08-18 |
NO172670B (no) | 1993-05-10 |
FI86126B (fi) | 1992-03-31 |
EP0200271A1 (fr) | 1986-11-05 |
DE3668741D1 (de) | 1990-03-08 |
AU5676986A (en) | 1986-11-06 |
JPS61253959A (ja) | 1986-11-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: N.V. PHILIPS GLOEILAMPENFABRIEKEN |