TW280976B - - Google Patents

Info

Publication number
TW280976B
TW280976B TW084107078A TW84107078A TW280976B TW 280976 B TW280976 B TW 280976B TW 084107078 A TW084107078 A TW 084107078A TW 84107078 A TW84107078 A TW 84107078A TW 280976 B TW280976 B TW 280976B
Authority
TW
Taiwan
Prior art keywords
radio
satellite
length
pilot signal
time
Prior art date
Application number
TW084107078A
Other languages
English (en)
Original Assignee
Qualcomm Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of TW280976B publication Critical patent/TW280976B/zh

Links

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
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/29—Acquisition or tracking or demodulation of signals transmitted by the system carrier including Doppler, related
    • 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
    • G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
TW084107078A 1994-07-11 1995-07-08 TW280976B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/272,485 US5666122A (en) 1994-07-11 1994-07-11 Method for rapid signal acquisition in a satellite communications system

Publications (1)

Publication Number Publication Date
TW280976B true TW280976B (zh) 1996-07-11

Family

ID=23040000

Family Applications (1)

Application Number Title Priority Date Filing Date
TW084107078A TW280976B (zh) 1994-07-11 1995-07-08

Country Status (12)

Country Link
US (1) US5666122A (zh)
EP (1) EP0770288B1 (zh)
CN (1) CN1078023C (zh)
AT (1) ATE255301T1 (zh)
AU (1) AU699856B2 (zh)
DE (1) DE69532205T2 (zh)
ES (1) ES2214505T3 (zh)
HK (1) HK1012798A1 (zh)
IL (1) IL114513A (zh)
TW (1) TW280976B (zh)
WO (1) WO1996002092A1 (zh)
ZA (1) ZA955604B (zh)

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US5917444A (en) * 1995-05-22 1999-06-29 Trimble Navigation Ltd. Reduction of time to first fix in an SATPS receiver
USRE37408E1 (en) * 1993-05-21 2001-10-16 Trimble Navigation Ltd. Reduction of time to first fix in an SATPS receiver
US6061409A (en) * 1996-06-27 2000-05-09 Matsushita Electric Industrial Co., Ltd. Synchronization recovery for a mobile telephone
US5937349A (en) * 1996-10-29 1999-08-10 Motorola, Inc. Method and system of tracking dynamic communication parameters during a link interruption
US5893044A (en) * 1997-01-21 1999-04-06 Motorola Inc. Real time clock apparatus for fast acquisition or GPS signals
US6317049B1 (en) 1998-02-17 2001-11-13 Souhail Toubia Apparatus and method for locating missing persons, animals, and objects
US6008758A (en) * 1998-05-26 1999-12-28 Rockwell International Corporation Method and apparatus for Doppler compensation in a satellite communications system
US6449486B1 (en) * 1998-05-27 2002-09-10 Polaris Wireless, Inc. Multiple location estimates in a cellular communication system
US6215780B1 (en) * 1998-07-17 2001-04-10 Motorola, Inc. Method and system for synchronous code division multiplexed communications
US6381225B1 (en) * 1998-08-27 2002-04-30 Qualcomm Incorporated System and method for resolving frequency and timing uncertainty in access transmissions in a spread spectrum communication system
US6327473B1 (en) * 1998-09-08 2001-12-04 Qualcomm Incorporated Method and apparatus for increasing the sensitivity of a global positioning satellite receiver
US6208292B1 (en) * 1998-09-09 2001-03-27 Qualcomm Incorporated Position location with low tolerance oscillator
US6539328B1 (en) * 1999-04-30 2003-03-25 Sigma Instruments, Inc. Device and process for measurement and treatment of spinal mobility
US6701127B1 (en) 1999-12-16 2004-03-02 General Dynamics Decision Systems, Inc. Burst communications method and apparatus
GB0102881D0 (en) * 2001-02-06 2001-03-21 Koninkl Philips Electronics Nv A method of despreading GPS signals
US7054350B2 (en) * 2001-12-06 2006-05-30 L3 Communications Corporation Method and system for acquiring pseudo-noise (PN) decade-code phase
US20040029545A1 (en) * 2002-08-09 2004-02-12 Anderson Jon J. Method and system for leaving a communication channel in a wireless communications system
TW573359B (en) * 2003-01-28 2004-01-21 Powerchip Semiconductor Corp Flash memory cell structure and operating method thereof
KR101160855B1 (ko) * 2003-04-25 2012-07-02 퀄컴 인코포레이티드 신호 포착 지원 데이터를 획득하기 위한 시스템 및 방법
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
US7415354B2 (en) * 2006-04-28 2008-08-19 L-3 Communications Corporation System and method for GPS acquisition using advanced tight coupling
US7446700B2 (en) * 2007-02-14 2008-11-04 O2Micro International Ltd. Methods and apparatus for decreasing time to first fix of GPS receiver
JP5088676B2 (ja) * 2007-07-31 2012-12-05 セイコーエプソン株式会社 時刻修正装置、時刻修正装置付き計時装置及び時刻修正方法
CN101430373B (zh) * 2007-11-07 2011-08-17 中国科学院微电子研究所 全球定位系统接收机信号缺失下持续跟踪和定位方法
US20090149959A1 (en) * 2007-11-19 2009-06-11 Magellan Spine Technologies, Inc. Spinal implants and methods
CN101620263B (zh) * 2008-07-04 2012-10-03 深圳市莱科电子技术有限公司 一种捕获gps卫星信号的低硬件开销方法及其实现
JP2010060489A (ja) 2008-09-05 2010-03-18 Seiko Epson Corp 衛星軌道モデル化適否判定方法、長期予測軌道データ提供方法及び衛星軌道モデル化適否判定装置
KR20100032037A (ko) * 2008-09-17 2010-03-25 삼성전자주식회사 휴대용 단말기에서 지피에스 엔진 간의 정보 공유를 위한 장치 및 방법
US9459344B1 (en) * 2011-01-14 2016-10-04 Lockheed Martin Corporation Ship position and velocity using satellite ephemerides and radar range measurement of satellite
US20150271822A1 (en) * 2014-03-20 2015-09-24 Qualcomm Incorporated Systems, apparatus and methods for improving system acquisition performance in multi-sim wireless devices

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH073463B2 (ja) * 1989-11-22 1995-01-18 パイオニア株式会社 Ｇｐｓ受信機の衛星電波捕捉方法
JPH0748076B2 (ja) * 1989-11-30 1995-05-24 パイオニア株式会社 Ｇｐｓ受信機の衛星電波捕捉方法
JPH03269385A (ja) * 1990-03-20 1991-11-29 Pioneer Electron Corp Ｇｐｓ受信機
US5119504A (en) * 1990-07-19 1992-06-02 Motorola, Inc. Position aided subscriber unit for a satellite cellular system
CA2079827C (en) * 1991-12-09 2003-08-19 Theresa Chen Yen Wang Mobile unit tracking system
US5365450A (en) * 1992-12-17 1994-11-15 Stanford Telecommunications, Inc. Hybrid GPS/data line unit for rapid, precise, and robust position determination
US5420593A (en) * 1993-04-09 1995-05-30 Trimble Navigation Limited Method and apparatus for accelerating code correlation searches in initial acquisition and doppler and code phase in re-acquisition of GPS satellite signals

Also Published As

Publication number Publication date
AU3232795A (en) 1996-02-09
AU699856B2 (en) 1998-12-17
EP0770288A1 (en) 1997-05-02
ES2214505T3 (es) 2004-09-16
CN1078023C (zh) 2002-01-16
WO1996002092A1 (en) 1996-01-25
EP0770288B1 (en) 2003-11-26
IL114513A (en) 2002-08-14
IL114513A0 (en) 1995-11-27
DE69532205T2 (de) 2004-09-09
HK1012798A1 (en) 1999-08-06
ATE255301T1 (de) 2003-12-15
DE69532205D1 (de) 2004-01-08
ZA955604B (en) 1996-04-02
CN1152380A (zh) 1997-06-18
US5666122A (en) 1997-09-09

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees