BR0014884A - Sistema de comunicações multimodo com sincronização de oscilador eficiente - Google Patents
Sistema de comunicações multimodo com sincronização de oscilador eficienteInfo
- Publication number
- BR0014884A BR0014884A BR0014884-9A BR0014884A BR0014884A BR 0014884 A BR0014884 A BR 0014884A BR 0014884 A BR0014884 A BR 0014884A BR 0014884 A BR0014884 A BR 0014884A
- Authority
- BR
- Brazil
- Prior art keywords
- oscillator
- frequency
- communications system
- mode
- ratio
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Superheterodyne Receivers (AREA)
- Transceivers (AREA)
Abstract
"SISTEMA DE COMUNICAçõES MULTIMODO COM SINCRONIZAçãO DE OSCILADOR EFICIENTE". Um dispositivo de comunicação sem fio (40) pode operar em cada um de dois modos. No primeiro modo, um primeiro sintonizador de freq³ência (52) trava um primeiro oscilador (60) sobre um sinal recebido, recebido a partir de uma antena (12) via uma primeira cadeia de recepção (44). Este travamento também ajusta a freq³ência usada na primeira cadeia de transmissão (48). Quando o dispositivo estiver para ser comutado ao segundo modo, um computador de controle de sistema (56) primeiramente oferece um segundo sintonizador de freq³ência (64) de tal modo que uma desejada razão é obtida. Esta razão é a razão da freq³ência de um segundo oscilador (68) para a freq³ência ajustada do primeiro oscilador. Este oferecimento permite o dispositivo, e particularmente a segunda cadeia de recepção (46) e a segunda cadeia de transmissão (50), entrar no segundo modo mais rapidamente e mais precisamente.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/420,891 US6466803B1 (en) | 1999-10-19 | 1999-10-19 | Multi-mode communications system with efficient oscillator synchronization |
PCT/US2000/029121 WO2001029980A1 (en) | 1999-10-19 | 2000-10-18 | Multi-mode communications system with efficient oscillator synchronization |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0014884A true BR0014884A (pt) | 2002-12-24 |
Family
ID=23668271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0014884-9A BR0014884A (pt) | 1999-10-19 | 2000-10-18 | Sistema de comunicações multimodo com sincronização de oscilador eficiente |
Country Status (12)
Country | Link |
---|---|
US (1) | US6466803B1 (pt) |
EP (1) | EP1226656A1 (pt) |
JP (1) | JP2003515264A (pt) |
KR (1) | KR100729976B1 (pt) |
CN (1) | CN1202626C (pt) |
AU (1) | AU772256B2 (pt) |
BR (1) | BR0014884A (pt) |
CA (1) | CA2387769A1 (pt) |
HK (1) | HK1051267A1 (pt) |
IL (1) | IL149124A0 (pt) |
MX (1) | MXPA02003855A (pt) |
WO (1) | WO2001029980A1 (pt) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10035116C2 (de) * | 2000-07-19 | 2002-12-19 | Infineon Technologies Ag | Hochfrequenz-Schnittstelle für Dual-Standard Basisband-Chips |
DE10122196A1 (de) | 2001-05-08 | 2002-12-05 | Infineon Technologies Ag | Sendeanordnung, insbesondere für den Mobilfunk, sowie Verwendung einer Sendeanordnung |
FR2826813B1 (fr) * | 2001-06-28 | 2003-09-26 | Cit Alcatel | Procede d'estimation de l'incertitude frequentielle d'un systeme apte a communiquer sur deux reseaux de radiocommunication differents et dispositif correspondant |
EP1421802B1 (en) | 2001-08-14 | 2013-02-13 | QUALCOMM Incorporated | Method and apparatus for wireless network connectivity |
JP3929443B2 (ja) * | 2001-10-03 | 2007-06-13 | 富士通株式会社 | 2つの周波数帯域で通信可能な無線装置および該無線装置における局部発振信号生成方法 |
US6965754B2 (en) * | 2001-10-09 | 2005-11-15 | Motorola, Inc. | Satellite positioning system receiver with reference oscillator circuit and methods therefor |
KR100926849B1 (ko) * | 2002-01-07 | 2009-11-13 | 엔엑스피 비 브이 | 송수신기, 디지털 합성기 구동형 위상 동기 루프, 디지털 합성기, 위상 동기 루프, 시스템, 휴대용 유닛, 네트워크 유닛 및 신호 송수신 방법 |
KR100474683B1 (ko) * | 2002-08-23 | 2005-03-10 | 삼성전자주식회사 | 이동 통신 시스템의 동기 획득 장치 및 방법 |
US6836506B2 (en) * | 2002-08-27 | 2004-12-28 | Qualcomm Incorporated | Synchronizing timing between multiple air link standard signals operating within a communications terminal |
US7657282B2 (en) * | 2002-10-23 | 2010-02-02 | Hitachi, Ltd. | Multimode wireless communication apparatus and high frequency integrated circuit therefor |
US7352688B1 (en) * | 2002-12-31 | 2008-04-01 | Cisco Technology, Inc. | High data rate wireless bridging |
DE10319561B4 (de) * | 2003-04-30 | 2005-05-04 | Siemens Ag | Verfahren zum Betreiben einer digitalen Schnittstellenanordnung sowie digitale Schnittstellenanordnung zum Austausch von Daten |
JP2005039765A (ja) * | 2003-06-25 | 2005-02-10 | Renesas Technology Corp | マルチモード型無線端末および無線送受信部 |
US7209720B2 (en) * | 2003-08-26 | 2007-04-24 | Freescale Semiconductor, Inc. | Multiband and multimode transmitter and method |
JP4211621B2 (ja) * | 2004-02-04 | 2009-01-21 | 双葉電子工業株式会社 | 模型用無線操縦システム |
US20060013160A1 (en) * | 2004-07-19 | 2006-01-19 | Haartsen Jacobus C | Peer connectivity in ad-hoc communications systems |
US7012564B2 (en) * | 2004-08-05 | 2006-03-14 | Global Locate, Inc. | Method and apparatus for adjusting a measurement cycle in a satellite positioning system signal receiver |
US8401503B2 (en) * | 2005-03-01 | 2013-03-19 | Qualcomm Incorporated | Dual-loop automatic frequency control for wireless communication |
US7593695B2 (en) * | 2005-03-15 | 2009-09-22 | Broadcom Corporation | RF transceiver incorporating dual-use PLL frequency synthesizer |
KR100701252B1 (ko) * | 2005-06-10 | 2007-03-29 | 권명섭 | 고기구이테이블 |
US8229433B2 (en) * | 2005-10-27 | 2012-07-24 | Qualcomm Incorporated | Inter-frequency handoff |
US8068835B2 (en) * | 2005-10-27 | 2011-11-29 | Qualcomm Incorporated | Tune-away and cross paging systems and methods |
US9247467B2 (en) * | 2005-10-27 | 2016-01-26 | Qualcomm Incorporated | Resource allocation during tune-away |
US8134977B2 (en) * | 2005-10-27 | 2012-03-13 | Qualcomm Incorporated | Tune-away protocols for wireless systems |
US7539889B2 (en) * | 2005-12-30 | 2009-05-26 | Avega Systems Pty Ltd | Media data synchronization in a wireless network |
US20080146165A1 (en) * | 2006-12-15 | 2008-06-19 | Motorola, Inc. | Dynamic frequency synthesizer programming |
JP5206921B2 (ja) * | 2007-03-16 | 2013-06-12 | 日本電気株式会社 | 移動無線システムにおけるリソース割当制御方法および装置 |
CN101355369B (zh) * | 2007-07-27 | 2012-08-22 | 联芯科技有限公司 | 一种收发信机、移动终端及收发处理方法 |
ATE506757T1 (de) * | 2007-08-10 | 2011-05-15 | Koninkl Philips Electronics Nv | Mehrfachübertragungsvorrichtung mit reduzierter kopplung |
KR100903948B1 (ko) * | 2007-09-28 | 2009-06-25 | 주식회사 케이티프리텔 | 이동 통신 시스템에서 파일럿 신호를 이용하여 동기화하는마이크로웨이브 중계기 및 그 방법 |
KR101030950B1 (ko) * | 2008-02-29 | 2011-04-28 | 주식회사 코아로직 | 듀얼 모드 위성 신호 수신 장치 및 위성 신호 수신 방법 |
WO2010113453A1 (ja) * | 2009-04-02 | 2010-10-07 | パナソニック株式会社 | 無線送受信回路、無線通信装置、及び無線送受信方法 |
JP5375925B2 (ja) * | 2011-11-01 | 2013-12-25 | 株式会社デンソー | 無線通信機 |
CN104901716B (zh) * | 2015-04-03 | 2017-12-19 | 惠州Tcl移动通信有限公司 | 一种可在脱网条件下进行端对端通信的移动终端及方法 |
KR102120926B1 (ko) | 2016-07-18 | 2020-06-09 | 삼성전자주식회사 | 무선 송수신기 및 그 동작 방법 |
US11070218B2 (en) * | 2019-04-17 | 2021-07-20 | Texas Instruments Incorporated | Real time counter-based method for the determination and measurement of frequency lock time in phase-locked loops |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4731796A (en) * | 1984-10-25 | 1988-03-15 | Stc, Plc | Multi-mode radio transceiver |
US5887020A (en) * | 1991-05-13 | 1999-03-23 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5375145A (en) * | 1992-08-27 | 1994-12-20 | Quantum Corporation | Multi-mode gain control loop for PRML class IV sampling data detection channel |
US5758266A (en) | 1994-09-30 | 1998-05-26 | Qualcomm Incorporated | Multiple frequency communication device |
US5614904A (en) * | 1995-03-09 | 1997-03-25 | Ericsson Inc. | Balance companded delta conversion for homodyne receiver |
US5745484A (en) * | 1995-06-05 | 1998-04-28 | Omnipoint Corporation | Efficient communication system using time division multiplexing and timing adjustment control |
JPH09130291A (ja) * | 1995-10-31 | 1997-05-16 | Hitachi Ltd | デュアルモード携帯電話端末のクロック分配方式 |
KR0164381B1 (ko) | 1995-12-30 | 1999-02-01 | 김광호 | 디지탈 무선 통신시스템의 자동 주파수 조절회로 |
JP2826532B2 (ja) * | 1996-08-12 | 1998-11-18 | 静岡日本電気株式会社 | ページャシステム |
JP3226807B2 (ja) * | 1996-11-20 | 2001-11-05 | 静岡日本電気株式会社 | 無線呼出システム用の自動周波数補正装置および自動周波数補正方法 |
US6308048B1 (en) | 1997-11-19 | 2001-10-23 | Ericsson Inc. | Simplified reference frequency distribution in a mobile phone |
US6115595A (en) * | 1998-05-04 | 2000-09-05 | Trimble Navigation Limited | Integrated circuit using a power supply input for digital logic |
-
1999
- 1999-10-19 US US09/420,891 patent/US6466803B1/en not_active Expired - Lifetime
-
2000
- 2000-10-18 MX MXPA02003855A patent/MXPA02003855A/es active IP Right Grant
- 2000-10-18 IL IL14912400A patent/IL149124A0/xx unknown
- 2000-10-18 WO PCT/US2000/029121 patent/WO2001029980A1/en active IP Right Grant
- 2000-10-18 KR KR1020027004901A patent/KR100729976B1/ko not_active IP Right Cessation
- 2000-10-18 EP EP00972312A patent/EP1226656A1/en not_active Withdrawn
- 2000-10-18 BR BR0014884-9A patent/BR0014884A/pt not_active IP Right Cessation
- 2000-10-18 JP JP2001531218A patent/JP2003515264A/ja active Pending
- 2000-10-18 CN CNB008145369A patent/CN1202626C/zh not_active Expired - Fee Related
- 2000-10-18 AU AU10992/01A patent/AU772256B2/en not_active Ceased
- 2000-10-18 CA CA002387769A patent/CA2387769A1/en not_active Abandoned
-
2003
- 2003-05-13 HK HK03103324A patent/HK1051267A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100729976B1 (ko) | 2007-06-20 |
MXPA02003855A (es) | 2002-12-13 |
EP1226656A1 (en) | 2002-07-31 |
HK1051267A1 (en) | 2003-07-25 |
CA2387769A1 (en) | 2001-04-26 |
WO2001029980A1 (en) | 2001-04-26 |
IL149124A0 (en) | 2002-11-10 |
AU772256B2 (en) | 2004-04-22 |
WO2001029980A9 (en) | 2002-08-08 |
KR20020040885A (ko) | 2002-05-30 |
CN1202626C (zh) | 2005-05-18 |
JP2003515264A (ja) | 2003-04-22 |
US6466803B1 (en) | 2002-10-15 |
CN1399817A (zh) | 2003-02-26 |
AU1099201A (en) | 2001-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08L | Patent application lapsed because of non payment of annual fee [chapter 8.12 patent gazette] |
Free format text: REFERENTE AO NAO RECOLHIMENTO DAS 12A E 13A ANUIDADES. |
|
B08I | Publication cancelled [chapter 8.9 patent gazette] |
Free format text: ANULADA A PUBLICACAO CODIGO 8.12 NA RPI NO 2257 DE 08/04/2014 POR TER SIDO INDEVIDA. |
|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE AS 12A, 13A, 14A, 15A, 16A, 17A, 18A, 19A E 20A ANUIDADES. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2602 DE 17-11-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |