DE69629225D1 - Anordnung zur Unterdrückung einer Frequenzverschiebung - Google Patents
Anordnung zur Unterdrückung einer FrequenzverschiebungInfo
- Publication number
- DE69629225D1 DE69629225D1 DE69629225T DE69629225T DE69629225D1 DE 69629225 D1 DE69629225 D1 DE 69629225D1 DE 69629225 T DE69629225 T DE 69629225T DE 69629225 T DE69629225 T DE 69629225T DE 69629225 D1 DE69629225 D1 DE 69629225D1
- Authority
- DE
- Germany
- Prior art keywords
- suppressing
- arrangement
- frequency shift
- shift
- frequency
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3431795A JP2705613B2 (ja) | 1995-01-31 | 1995-01-31 | 周波数オフセット補正装置 |
JP3431795 | 1995-01-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69629225D1 true DE69629225D1 (de) | 2003-09-04 |
DE69629225T2 DE69629225T2 (de) | 2004-02-19 |
Family
ID=12410793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996629225 Expired - Fee Related DE69629225T2 (de) | 1995-01-31 | 1996-01-30 | Anordnung zur Unterdrückung einer Frequenzverschiebung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5818882A (de) |
EP (1) | EP0725496B1 (de) |
JP (1) | JP2705613B2 (de) |
DE (1) | DE69629225T2 (de) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6058150A (en) * | 1997-09-30 | 2000-05-02 | Wireless Access, Inc. | Method and apparatus for combined timing recovery, frame synchronization and frequency offset correction in a receiver |
JP2991170B2 (ja) * | 1997-10-01 | 1999-12-20 | 日本電気株式会社 | Cdma受信装置および方法 |
US6493397B1 (en) * | 1997-10-20 | 2002-12-10 | Matsushita Electric Industrial Co. Ltd. | Radio communication device and radio communication method |
US6134260A (en) * | 1997-12-16 | 2000-10-17 | Ericsson Inc. | Method and apparatus for frequency acquisition and tracking for DS-SS CDMA receivers |
JP3446811B2 (ja) * | 1998-06-30 | 2003-09-16 | 日本電気株式会社 | データサンプリング方法及び装置 |
US6278725B1 (en) * | 1998-12-18 | 2001-08-21 | Philips Electronics North America Corporation | Automatic frequency control loop multipath combiner for a rake receiver |
US6470005B1 (en) * | 1998-12-29 | 2002-10-22 | Thomson Licensing Sa | Transceiver prerotation based on carrier offset |
JP2001016135A (ja) | 1999-06-29 | 2001-01-19 | Nec Corp | 自動周波数制御方法と自動周波数制御方式とcdma受信機 |
JP2001045082A (ja) | 1999-07-28 | 2001-02-16 | Matsushita Electric Ind Co Ltd | 周波数オフセット量検出装置 |
JP3368875B2 (ja) * | 1999-11-05 | 2003-01-20 | 日本電気株式会社 | 周波数オフセット補正システム及び方法 |
JP2001177436A (ja) * | 1999-12-15 | 2001-06-29 | Nec Corp | 移動通信システムにおけるafc制御装置及びその方法並びにそれを使用した移動通信機 |
US6963602B1 (en) * | 2000-01-05 | 2005-11-08 | Advanced Micro Devices, Inc. | Digital correction method and system |
US20010024483A1 (en) * | 2000-02-21 | 2001-09-27 | Matsushita Electric Industrial Co., Ltd. | Radio reception apparatus |
AU2001250925A1 (en) * | 2000-03-21 | 2001-10-03 | Telcordia Technologies, Inc. | Combined adaptive spatio-temporal processing and multi-user detection for cdma wireless systems |
JP3846546B2 (ja) | 2000-08-29 | 2006-11-15 | 日本電気株式会社 | 周波数オフセット推定器 |
US7590164B2 (en) * | 2001-01-19 | 2009-09-15 | Qualcomm Incorporated | Method and apparatus for efficient use of communication resources in a communication system |
US6876692B2 (en) * | 2001-03-09 | 2005-04-05 | Motorola, Inc. | System for code division multi-access communication |
JP2003069658A (ja) * | 2001-08-28 | 2003-03-07 | Hitachi Ltd | 通信用半導体集積回路および無線通信システム |
TW576035B (en) * | 2002-04-15 | 2004-02-11 | Accton Technology Corp | Detecting apparatus of primary synchronization for cell search for CDMA system |
US7203254B2 (en) * | 2003-03-25 | 2007-04-10 | Motorola, Inc. | Method and system for synchronizing in a frequency shift keying receiver |
US7016661B2 (en) * | 2003-10-10 | 2006-03-21 | Motorola, Inc. | Multi-mode receiver for frequency error mitigation |
US7058378B2 (en) * | 2003-11-18 | 2006-06-06 | Interdigital Technology Corporation | Method and apparatus for automatic frequency correction of a local oscilator with an error signal derived from an angle value of the conjugate product and sum of block correlator outputs |
US7251300B2 (en) * | 2003-12-22 | 2007-07-31 | Spreadtrum Communications Corporation | Method and apparatus for frequency tracking based on recovered data |
JP4358686B2 (ja) | 2004-06-17 | 2009-11-04 | 富士通株式会社 | フェージング周波数推定装置およびその推定方法 |
US7865158B2 (en) * | 2005-07-26 | 2011-01-04 | Interdigital Technology Corporation | Method and apparatus for automatically correcting receiver oscillator frequency |
DE602005010574D1 (de) * | 2005-08-12 | 2008-12-04 | St Microelectronics Belgium Nv | Empfänger mit zweistufiger Kompensation der Frequenzverschiebung für ein M-stufiges phasenmoduliertes Signal |
US8325856B2 (en) | 2007-03-05 | 2012-12-04 | Qualcomm Incorporated | Coherent initial acquisition |
JP4803390B2 (ja) * | 2007-04-12 | 2011-10-26 | 日本電気株式会社 | 周波数補正回路及び周波数補正方法 |
US8038815B2 (en) | 2007-07-17 | 2011-10-18 | Qualcomm Incorporated | Fluorescent dye to improve primer coverage accuracy for bonding applications |
US8654908B2 (en) | 2010-06-11 | 2014-02-18 | Comtech Ef Data Corp. | Correlation prevention methods for satellite adaptive cancellation links |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62219832A (ja) * | 1986-03-20 | 1987-09-28 | Fujitsu Ltd | 通信路周波数オフセツト補正装置 |
US4841544A (en) * | 1987-05-14 | 1989-06-20 | The Charles Stark Draper Laboratory, Inc. | Digital direct sequence spread spectrum receiver |
US5159282A (en) * | 1989-12-06 | 1992-10-27 | Kabushiki Kaisha Toshiba | Demodulation apparatus incorporating adaptive equalizer for digital communication |
US5287388A (en) * | 1991-06-25 | 1994-02-15 | Kabushiki Kaisha Toshiba | Frequency offset removal method and apparatus |
JPH06188929A (ja) * | 1992-12-18 | 1994-07-08 | Fujitsu Ltd | 周波数オフセット除去方法及び装置 |
US5488629A (en) * | 1993-02-17 | 1996-01-30 | Matsushita Electric Industrial Co., Ltd. | Signal processing circuit for spread spectrum communications |
US5361276A (en) * | 1993-09-13 | 1994-11-01 | At&T Bell Laboratories | All digital maximum likelihood based spread spectrum receiver |
US5535441A (en) * | 1994-09-30 | 1996-07-09 | Hughes Electronics Corp. | Method and device for canceling frequency offsets |
US5546433A (en) * | 1995-03-21 | 1996-08-13 | National Semiconductor Corporation | Digital phase lock loop having frequency offset cancellation circuitry |
-
1995
- 1995-01-31 JP JP3431795A patent/JP2705613B2/ja not_active Expired - Fee Related
-
1996
- 1996-01-29 US US08/593,688 patent/US5818882A/en not_active Expired - Fee Related
- 1996-01-30 EP EP19960101276 patent/EP0725496B1/de not_active Expired - Lifetime
- 1996-01-30 DE DE1996629225 patent/DE69629225T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69629225T2 (de) | 2004-02-19 |
EP0725496B1 (de) | 2003-07-30 |
EP0725496A1 (de) | 1996-08-07 |
JPH08213933A (ja) | 1996-08-20 |
US5818882A (en) | 1998-10-06 |
JP2705613B2 (ja) | 1998-01-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69629225D1 (de) | Anordnung zur Unterdrückung einer Frequenzverschiebung | |
DE69823693T2 (de) | Verfahren und einrichtung zur schätzung einer frequenzverschiebung | |
DE69728812D1 (de) | Verfahren zur Erhöhung der Lötbarkeit einer Oberfläche | |
DE69901516T2 (de) | Vorrichtung zur abtastung einer wellenfront | |
DE69502849D1 (de) | Verfahren zur Herstellung einer versiegelbaren Dichtung | |
DE29614349U1 (de) | Anordnung zum Einsetzen einer femoralen Knie-Gleitflächen-Endoprothese | |
DE59803779D1 (de) | Einrichtung zur beeinflussung einer beleuchtungseinrichtung | |
DE29606028U1 (de) | Anordnung zum Befestigen einer Handgelenkstütze | |
DE69732214D1 (de) | Künstlisches Fading zur Abschwächung einer Frequenzverschiebung | |
DE69835677D1 (de) | Einrichtung zur Bewegung einer Abtastvorrichtung | |
DE69504192D1 (de) | Anordnung zur digitalen durchführung einer divisionsoperation | |
DE29513990U1 (de) | Anordnung zur Befestigung einer Rohrleitung an einer Wand | |
DE59910737D1 (de) | Befestigung einer rohrplatine | |
DE59209454D1 (de) | Anordnung zur Frequenzumsetzung | |
DE59607788D1 (de) | Anordnung zur erfassung einer bewegung | |
DE59808436D1 (de) | Anordnung zur Spaltabdeckung an einer Aussparung | |
DE59607260D1 (de) | Anordnung zur erfassung der topographie einer oberfläche | |
DE69410701T2 (de) | Gerät zur Säuberung einer Oberfläche | |
DE59802859D1 (de) | Verfahren zur druckadaption einer überschneidungs-hochschaltung | |
DE59605289D1 (de) | Anordnung zur Beeinflussung einer Regelstrecke | |
DE69319680T2 (de) | Anordnung zur Hyperfrequenzeichnung | |
DE29708897U1 (de) | Anordnung zur Übertragung eines Drehmoments | |
DE9412207U1 (de) | Schaltdrehgriffänderung | |
DE59510644D1 (de) | Anordnung von einer mehrzahl von geräten zur zubereitung von speisen | |
DE9307842U1 (de) | Vorrichtung zur Gestaltung einer Oberfläche |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |