BRPI0413984A - sincronização de bit em um dispositivo de comunicações - Google Patents
sincronização de bit em um dispositivo de comunicaçõesInfo
- Publication number
- BRPI0413984A BRPI0413984A BRPI0413984-4A BRPI0413984A BRPI0413984A BR PI0413984 A BRPI0413984 A BR PI0413984A BR PI0413984 A BRPI0413984 A BR PI0413984A BR PI0413984 A BRPI0413984 A BR PI0413984A
- Authority
- BR
- Brazil
- Prior art keywords
- signal
- bit synchronization
- communications device
- energy
- highest computed
- Prior art date
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
- H04B1/7073—Synchronisation aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
- H04L7/007—Detection of the synchronisation error by features other than the received signal transition detection of error based on maximum signal power, e.g. peak value, maximizing autocorrelation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
-
- 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
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
-
- 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
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70755—Setting of lock conditions, e.g. threshold
-
- 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
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
- H04B1/70775—Multi-dwell schemes, i.e. multiple accumulation times
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70715—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with application-specific features
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
"SINCRONIZAçãO DE BITS EM UM DISPOSITIVO DE COMUNICAçõES". São descritos sistemas e técnicas relacionados a comunicações. Os sistemas e técnicas envolvem a sincronização a um sinal possuindo uma pluralidade de bits por computação da energia para uma pluralidade de porções de sinal com diferentes desvios de fase, geração de uma relação da porção de sinal com a energia computada mais elevada para a porção de sinal com a segunda maior energia computada e computação da relação para um limite para determinar se a porção de sinal com a energia computada mais alta pode ser utilizada para determinar a temporização de bits.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/650,866 US7248624B2 (en) | 2003-08-28 | 2003-08-28 | Bit synchronization in a communications device |
US10/650,866 | 2003-08-28 | ||
PCT/US2004/027721 WO2005048521A1 (en) | 2003-08-28 | 2004-08-25 | Bit synchronization in a communications device |
Publications (2)
Publication Number | Publication Date |
---|---|
BRPI0413984A true BRPI0413984A (pt) | 2006-11-07 |
BRPI0413984B1 BRPI0413984B1 (pt) | 2018-02-14 |
Family
ID=34590593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0413984-4A BRPI0413984B1 (pt) | 2003-08-28 | 2004-08-25 | Sincronização de bit em um dispositivo de comunicações |
Country Status (5)
Country | Link |
---|---|
US (1) | US7248624B2 (pt) |
KR (1) | KR100884705B1 (pt) |
BR (1) | BRPI0413984B1 (pt) |
IL (1) | IL173978A0 (pt) |
WO (1) | WO2005048521A1 (pt) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070002980A1 (en) * | 2005-06-29 | 2007-01-04 | Eyal Krupka | Method for timing and sequence hypotheses selection |
US7477186B2 (en) * | 2005-10-11 | 2009-01-13 | Sony Ericsson Mobile Communications Ab | Memory systems with column read to an arithmetic operation circuit, pattern detector circuits and methods and computer program products for the same |
US7706470B2 (en) * | 2006-01-06 | 2010-04-27 | Mediatek Inc. | Acquisition method for global positioning system |
US8031816B2 (en) | 2006-07-17 | 2011-10-04 | Mediatek Inc. | Method and apparatus for determining boundaries of information elements |
US8433991B2 (en) | 2010-06-16 | 2013-04-30 | Qualcomm Incorporated | Global Navigation Satellite System (GLONASS) data bit edge detection |
US20120050096A1 (en) * | 2010-08-27 | 2012-03-01 | Hao-Ren Cheng | GLONASS Bit Boundary Detection |
US8780958B2 (en) | 2010-08-27 | 2014-07-15 | Qualcomm Incorporated | Hybrid bit extraction for global position receiver |
US8619919B2 (en) | 2010-10-14 | 2013-12-31 | Qualcomm Incorporated | Selective coherent and non-coherent demodulation methods and apparatuses |
FR3002388B1 (fr) * | 2013-02-20 | 2015-04-10 | Commissariat Energie Atomique | Methode d'acquisition d'un signal gps par decodage iteratif |
CN112180409B (zh) * | 2020-09-28 | 2024-02-02 | 和芯星通科技(北京)有限公司 | 一种gnss中比特同步方法、存储介质和电子装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5596333A (en) * | 1994-08-31 | 1997-01-21 | Motorola, Inc. | Method and apparatus for conveying a communication signal between a communication unit and a base site |
US5654991A (en) | 1995-07-31 | 1997-08-05 | Harris Corporation | Fast acquisition bit timing loop method and apparatus |
US5832026A (en) * | 1996-12-04 | 1998-11-03 | Motorola, Inc. | Method for correcting errors from a fading signal in a frequency hopped spread spectrum communcation system |
JP3275779B2 (ja) * | 1997-06-16 | 2002-04-22 | 日本電気株式会社 | 遅延判定帰還型系列推定受信装置 |
DE69937828D1 (de) * | 1998-06-19 | 2008-02-07 | Ericsson Telefon Ab L M | Rahmensynchronisierungsverfahren und -einrichtungen |
US6690740B1 (en) * | 1998-08-19 | 2004-02-10 | Telefonaktiebolaget L M Ericsson | Methods and apparatus for providing robust synchronization of radio transceivers |
US6327473B1 (en) | 1998-09-08 | 2001-12-04 | Qualcomm Incorporated | Method and apparatus for increasing the sensitivity of a global positioning satellite receiver |
US6233273B1 (en) * | 1999-06-29 | 2001-05-15 | Intersil Americas Inc. | Rake receiver with embedded decision feedback equalizer |
FI109311B (fi) | 2001-03-16 | 2002-06-28 | Nokia Corp | Menetelmä informaatioelementin reunan määrittämiseksi, järjestelmä ja elektroniikkalaite |
US7308022B2 (en) | 2001-11-01 | 2007-12-11 | Rick Roland R | Parameter estimator configured to distinguish between peaks and sidelobes of correlation function |
US6795490B2 (en) * | 2002-04-17 | 2004-09-21 | Thomson Licensing S.A. | Signal detection in a direct-sequence spread spectrum transmission system |
US7042930B2 (en) | 2002-06-06 | 2006-05-09 | The Aerospace Corporation | Spread spectrum bit boundary correlation search acquisition system |
-
2003
- 2003-08-28 US US10/650,866 patent/US7248624B2/en active Active
-
2004
- 2004-08-25 BR BRPI0413984-4A patent/BRPI0413984B1/pt not_active IP Right Cessation
- 2004-08-25 WO PCT/US2004/027721 patent/WO2005048521A1/en active Application Filing
- 2004-08-25 KR KR1020067004283A patent/KR100884705B1/ko active IP Right Grant
-
2006
- 2006-02-27 IL IL173978A patent/IL173978A0/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2005048521A1 (en) | 2005-05-26 |
IL173978A0 (en) | 2006-07-05 |
KR20060126914A (ko) | 2006-12-11 |
BRPI0413984B1 (pt) | 2018-02-14 |
KR100884705B1 (ko) | 2009-02-19 |
US20070147483A1 (en) | 2007-06-28 |
US7248624B2 (en) | 2007-07-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BRPI0413984A (pt) | sincronização de bit em um dispositivo de comunicações | |
BR112012021206A2 (pt) | método e dispositivo para sincronização de tempo | |
EP4276629A3 (en) | User interfaces for logging user activities | |
BRPI0717312B8 (pt) | pilotos de aquisição para sistemas de comunicação sem fio | |
FR2881590B1 (fr) | Procede de communication numerique par paquets a travers un canal de transmission partage par une pluralite d'utilisateurs | |
BR112016007357A2 (pt) | método para melhorar a taxa de link mipi d-phy com mudanças phy mínimas e nenhuma mudança de protocolo | |
BRPI0407562A (pt) | sistemas e métodos para efetuar controle de potência de malha externa em sistemas de comunicação sem fio | |
ATE399413T1 (de) | Datenübertragung mit geteiltem datenstrom und mehrfachzugangspunkten | |
BR9913194A (pt) | Receptor, e, processo de receber no mìnimo um sinal que corresponde a uma pluralidade de sinais transmitidos | |
BR112014028098A2 (pt) | modelo de sinal de referência para configurações de subquadros especiais | |
ATE503315T1 (de) | Gruppenenergieverwaltung von netzwerkvorrichtungen | |
BRPI0513885A (pt) | sistema e método para intercalamento | |
MX2009007874A (es) | Metodo para facilitar la sincronizacion de servidores en una red de temporizacion coordinada. | |
WO2008094014A3 (en) | Method for generating a reference signal sequence using grouping | |
AU2002356402A1 (en) | Taxonomy generation | |
WO2005065229A3 (en) | Generating user information for use in targeted advertising | |
BR9806484A (pt) | Método e aparelho para processamento de chamada com tolerância de falha | |
BR9914992A (pt) | Processo para reduzir instabilidade no tempo de espera em um sistema que utiliza sincronização por recheio de bit e em um sincronizador, circuito sincronizador, e, rede de telecomunicações | |
EP1578042A4 (en) | METHOD FOR PRODUCING A BIDIRECTIONAL LABEL-MEDIATED PATH IN OPTICS | |
BRPI0508583A (pt) | canal de acesso com tempos de chegada restritos | |
BRPI0419109A (pt) | método e aparelho de sinalização de orientação melhorada | |
AR060369A1 (es) | Metodos y aparatos para reducir una relacion de pico- promedio para una senal de transmision de ofdm | |
BR9917496A (pt) | Método, sistema e aparelho para reduzir tempo de sincronização e resincronização para sistemas com enchimento de pulso | |
MY119546A (en) | Method and system for approximate, monotonic time synchronization for a multiple node numa system. | |
BR0111432A (pt) | Sincronização de tempo para sistemas móveis |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] | ||
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 16A ANUIDADE. |
|
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2595 DE 29-09-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |