CN1573354A - 便携终端和全球定位系统时间保持方法 - Google Patents
便携终端和全球定位系统时间保持方法 Download PDFInfo
- Publication number
- CN1573354A CN1573354A CNA2004100487042A CN200410048704A CN1573354A CN 1573354 A CN1573354 A CN 1573354A CN A2004100487042 A CNA2004100487042 A CN A2004100487042A CN 200410048704 A CN200410048704 A CN 200410048704A CN 1573354 A CN1573354 A CN 1573354A
- Authority
- CN
- China
- Prior art keywords
- time
- gps
- clock
- power saving
- processing unit
- 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.)
- Granted
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Classifications
-
- 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
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
-
- 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
- G01S19/34—Power consumption
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephone Function (AREA)
Abstract
Description
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003165044A JP4164662B2 (ja) | 2003-06-10 | 2003-06-10 | 携帯端末およびgps時刻維持方法 |
JP165044/2003 | 2003-06-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1573354A true CN1573354A (zh) | 2005-02-02 |
CN100353182C CN100353182C (zh) | 2007-12-05 |
Family
ID=33296809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100487042A Expired - Fee Related CN100353182C (zh) | 2003-06-10 | 2004-06-10 | 便携终端和全球定位系统时间保持方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7084810B2 (zh) |
EP (1) | EP1486795B1 (zh) |
JP (1) | JP4164662B2 (zh) |
CN (1) | CN100353182C (zh) |
DE (1) | DE602004002520T2 (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1977184B (zh) * | 2004-06-30 | 2011-06-08 | 诺基亚公司 | 包括具有提高的记时精确度的低能耗gps接收器的移动设备 |
CN102176112A (zh) * | 2010-11-29 | 2011-09-07 | 江苏林洋电子股份有限公司 | Mcu内置rtc实现时钟精确计时的方法 |
CN102193496A (zh) * | 2010-03-08 | 2011-09-21 | 技嘉科技股份有限公司 | 用于检测一rtc震荡器的方法与计算器系统 |
CN101340205B (zh) * | 2007-07-05 | 2015-04-29 | 联发科技股份有限公司 | 码分多址信号相关性积分控制的方法与装置及相应接收器 |
JP2020170795A (ja) * | 2019-04-03 | 2020-10-15 | ホーチキ株式会社 | 回路システム、及び集積回路 |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
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DE10246746B3 (de) * | 2002-10-07 | 2004-04-08 | Siemens Ag | Rechnersystem für Echtzeit- und Nicht-Echtzeitprogramme |
US7362263B2 (en) | 2003-09-04 | 2008-04-22 | Seiko Epson Corporation | Keeping accurate time for a hybrid GPS receiver and mobile phone when powered off |
JP4769452B2 (ja) * | 2004-12-20 | 2011-09-07 | 古野電気株式会社 | 測位用信号受信装置 |
KR100705571B1 (ko) * | 2005-01-03 | 2007-04-10 | 삼성전자주식회사 | 휴면 상태를 지원하는 프로세서의 소프트웨어 시간 보상 장치 및 그 방법 |
US7019689B1 (en) | 2005-01-31 | 2006-03-28 | Seiko Epson Corporation | Skipping z-counts and accurate time in GPS receivers |
US7454645B2 (en) * | 2005-03-31 | 2008-11-18 | Cypress Semiconductor Corp. | Circuit and method for monitoring the status of a clock signal |
KR100703490B1 (ko) * | 2005-04-18 | 2007-04-03 | 삼성전자주식회사 | 비동기 방식을 기반으로 한 이동 통신 단말기의 시간동기화 방법 및 그 시스템 |
EP1777540B1 (en) * | 2005-10-21 | 2009-08-12 | Qualcomm Incorporated | Radiolocalization receiver and signal processor |
US7689838B2 (en) * | 2005-12-22 | 2010-03-30 | Intel Corporation | Method and apparatus for providing for detecting processor state transitions |
US7532159B2 (en) * | 2006-05-19 | 2009-05-12 | Trimble Navigation Limited | Fast time to first fix by calibration of a real time clock |
WO2008011030A2 (en) * | 2006-07-17 | 2008-01-24 | Xensource, Inc | Tracking current time on multiprocessor hosts and virtual machines |
US20080146150A1 (en) * | 2006-12-18 | 2008-06-19 | Accton Technology Corporation | WiFi SiP module |
US7446700B2 (en) * | 2007-02-14 | 2008-11-04 | O2Micro International Ltd. | Methods and apparatus for decreasing time to first fix of GPS receiver |
US7826968B2 (en) * | 2007-04-30 | 2010-11-02 | Mediatek Inc. | Method, device and vehicle utilizing the same |
JP4952406B2 (ja) * | 2007-07-02 | 2012-06-13 | トヨタ自動車株式会社 | 時刻補正方法、マイコン内部時計、電子制御ユニット |
US20090016167A1 (en) * | 2007-07-09 | 2009-01-15 | Seiko Epson Corporation | Time Adjustment Device, Timekeeping Device with a Time Adjustment Device, and a Time Adjustment Method |
US8249616B2 (en) * | 2007-08-23 | 2012-08-21 | Texas Instruments Incorporated | Satellite (GPS) assisted clock apparatus, circuits, systems and processes for cellular terminals on asynchronous networks |
WO2010075647A1 (en) * | 2008-12-30 | 2010-07-08 | Mediatek Inc. | Methods and apparatus for obtaining gnss time in a gnss receiver |
US8331898B2 (en) * | 2007-10-03 | 2012-12-11 | Texas Instruments Incorporated | Power-saving receiver circuits, systems and processes |
JP5024000B2 (ja) * | 2007-11-30 | 2012-09-12 | ソニー株式会社 | 記録再生装置及びタイムコード復元方法 |
US8106821B2 (en) * | 2008-06-27 | 2012-01-31 | Qualcomm Incorporated | Methods and apparatuses for use with mode-switchable navigation radio |
JP5064322B2 (ja) * | 2008-07-10 | 2012-10-31 | 古野電気株式会社 | 基準信号発生装置 |
TW201009376A (en) * | 2008-08-29 | 2010-03-01 | Askey Computer Corp | Electronic device having GNSS receiver and activating and positioning method thereof |
US9322924B2 (en) * | 2008-12-12 | 2016-04-26 | Broadcom Corporation | Method and system for power management for a frequency synthesizer in a GNSS receiver chip |
JP2010216830A (ja) * | 2009-03-13 | 2010-09-30 | Japan Radio Co Ltd | 測位装置 |
US8446223B2 (en) * | 2009-05-22 | 2013-05-21 | CSR Technology, Inc. | Systems and methods for calibrating real time clock |
US8301098B2 (en) * | 2009-06-24 | 2012-10-30 | Marvell World Trade Ltd. | System and transceiver clocking to minimize required number of reference sources in multi-function cellular applications including GPS |
US8184049B2 (en) * | 2009-07-24 | 2012-05-22 | Broadcom Corporation | Method and system for sharing clock sources to save power on a GNSS enabled mobile device |
JP5458786B2 (ja) * | 2009-10-13 | 2014-04-02 | セイコーエプソン株式会社 | 電子機器 |
WO2011057000A1 (en) * | 2009-11-04 | 2011-05-12 | Maxlinear, Inc. | Gps baseband controller architecture |
JP5267516B2 (ja) | 2010-07-14 | 2013-08-21 | ソニー株式会社 | 受信装置、受信方法、コンピュータプログラム及び携帯端末 |
JP2012042279A (ja) | 2010-08-17 | 2012-03-01 | Sony Corp | 受信装置、受信方法およびコンピュータプログラム |
US9459652B1 (en) * | 2010-10-22 | 2016-10-04 | Vmware, Inc. | Virtual reference clock for virtual machines |
JP5263260B2 (ja) | 2010-10-27 | 2013-08-14 | 株式会社デンソー | 移動体用測位装置及びカーナビゲーション装置 |
JP5968609B2 (ja) * | 2011-11-07 | 2016-08-10 | 日本無線株式会社 | テレメータシステム及びテレメータシステムの制御方法 |
CN103235329B (zh) * | 2013-04-22 | 2016-02-24 | 清华大学 | 组合导航装置 |
US9651676B2 (en) | 2013-10-09 | 2017-05-16 | Samsung Electronics Co., Ltd. | Digital real time clock monitor for a GNSS receiver and single pin signalling for power-on reset and wake-up interrupt |
US10149261B2 (en) | 2013-11-04 | 2018-12-04 | Qualcomm Incorporated | Methods and systems for mobile device clock management |
CN103699173B (zh) * | 2013-11-04 | 2018-10-23 | 矽恩微电子(厦门)有限公司 | 一种实时时钟计时误差补偿方法 |
KR20180024620A (ko) | 2016-08-30 | 2018-03-08 | 삼성전자주식회사 | 시간 정보 표시 방법 및 이를 지원하는 전자 장치 |
JP6772700B2 (ja) * | 2016-09-15 | 2020-10-21 | カシオ計算機株式会社 | 測位装置、電子時計、測位制御方法、及びプログラム |
TWI668962B (zh) * | 2018-10-02 | 2019-08-11 | 新唐科技股份有限公司 | 時脈調整裝置及其傳輸系統和方法 |
KR20200091679A (ko) * | 2019-01-23 | 2020-07-31 | 에스케이하이닉스 주식회사 | 메모리 시스템 및 메모리 시스템의 동작방법 |
US11604286B2 (en) * | 2020-12-21 | 2023-03-14 | Intel Corporation | Global navigation satellite system (GNSS) and temperature sensing crystal (TSX) based device time service |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5854605A (en) * | 1996-07-05 | 1998-12-29 | Trimble Navigation Limited | GPS receiver using data bit timing to achieve a fast time to first fix |
US5893044A (en) * | 1997-01-21 | 1999-04-06 | Motorola Inc. | Real time clock apparatus for fast acquisition or GPS signals |
JP4085495B2 (ja) * | 1998-12-28 | 2008-05-14 | カシオ計算機株式会社 | 測位装置及び測位情報受信方法 |
JP2000332678A (ja) | 1999-05-21 | 2000-11-30 | Kokusai Electric Co Ltd | 同期維持方法及び無線装置及び無線通信システム |
US7091904B2 (en) * | 2001-07-18 | 2006-08-15 | Sirf Technology, Inc. | Tracker architecture for GPS systems |
US6772361B1 (en) * | 2000-07-10 | 2004-08-03 | Advanced Micro Devices, Inc. | Real time clock (RTC) having several highly desirable timekeeping dependability and security attributes, and methods for accessing a register thereof |
JP3403718B2 (ja) | 2001-07-05 | 2003-05-06 | 白山工業株式会社 | データ記録装置及び方法 |
JP4260625B2 (ja) * | 2001-09-14 | 2009-04-30 | サーフ テクノロジー インコーポレイテッド | 衛星測位システムの改良型電力管理 |
JP2005504971A (ja) * | 2001-10-02 | 2005-02-17 | サーフ テクノロジー インコーポレイテッド | 温度補償機能付き発振器を用いて位置の特定を実行する全地球的測位装置と方法 |
US6985811B2 (en) * | 2001-10-30 | 2006-01-10 | Sirf Technology, Inc. | Method and apparatus for real time clock (RTC) brownout detection |
US7327310B2 (en) * | 2003-11-07 | 2008-02-05 | Global Locate, Inc. | Method and apparatus for managing time in a satellite positioning system |
-
2003
- 2003-06-10 JP JP2003165044A patent/JP4164662B2/ja not_active Expired - Fee Related
-
2004
- 2004-06-08 EP EP20040013460 patent/EP1486795B1/en not_active Expired - Lifetime
- 2004-06-08 DE DE200460002520 patent/DE602004002520T2/de not_active Expired - Lifetime
- 2004-06-09 US US10/863,273 patent/US7084810B2/en not_active Expired - Fee Related
- 2004-06-10 CN CNB2004100487042A patent/CN100353182C/zh not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1977184B (zh) * | 2004-06-30 | 2011-06-08 | 诺基亚公司 | 包括具有提高的记时精确度的低能耗gps接收器的移动设备 |
CN101340205B (zh) * | 2007-07-05 | 2015-04-29 | 联发科技股份有限公司 | 码分多址信号相关性积分控制的方法与装置及相应接收器 |
CN102193496A (zh) * | 2010-03-08 | 2011-09-21 | 技嘉科技股份有限公司 | 用于检测一rtc震荡器的方法与计算器系统 |
CN102193496B (zh) * | 2010-03-08 | 2016-01-13 | 技嘉科技股份有限公司 | 用于检测一rtc振荡器的方法与计算器系统 |
CN102176112A (zh) * | 2010-11-29 | 2011-09-07 | 江苏林洋电子股份有限公司 | Mcu内置rtc实现时钟精确计时的方法 |
CN102176112B (zh) * | 2010-11-29 | 2013-04-24 | 江苏林洋电子股份有限公司 | Mcu内置rtc实现时钟精确计时的方法 |
JP2020170795A (ja) * | 2019-04-03 | 2020-10-15 | ホーチキ株式会社 | 回路システム、及び集積回路 |
JP7333705B2 (ja) | 2019-04-03 | 2023-08-25 | ホーチキ株式会社 | 回路システム |
Also Published As
Publication number | Publication date |
---|---|
JP2005003430A (ja) | 2005-01-06 |
DE602004002520D1 (de) | 2006-11-09 |
CN100353182C (zh) | 2007-12-05 |
US7084810B2 (en) | 2006-08-01 |
JP4164662B2 (ja) | 2008-10-15 |
DE602004002520T2 (de) | 2007-06-21 |
EP1486795A1 (en) | 2004-12-15 |
US20040252052A1 (en) | 2004-12-16 |
EP1486795B1 (en) | 2006-09-27 |
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