DE60135840D1 - - Google Patents

Info

Publication number
DE60135840D1
DE60135840D1 DE60135840T DE60135840T DE60135840D1 DE 60135840 D1 DE60135840 D1 DE 60135840D1 DE 60135840 T DE60135840 T DE 60135840T DE 60135840 T DE60135840 T DE 60135840T DE 60135840 D1 DE60135840 D1 DE 60135840D1
Authority
DE
Germany
Prior art keywords
frequency
oscillator
duty cycle
electronic device
effect
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 - Lifetime
Application number
DE60135840T
Other languages
English (en)
Inventor
Christopher Patrick
Saed G Younis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
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 DE60135840D1 publication Critical patent/DE60135840D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • 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

Landscapes

  • Position Fixing By Use Of Radio Waves (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)
  • Amplifiers (AREA)
DE60135840T 2000-05-09 2001-05-08 Expired - Lifetime DE60135840D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/567,801 US6522871B1 (en) 2000-05-09 2000-05-09 Method and apparatus for compensating local oscillator frequency error through environmental control
PCT/US2001/014993 WO2001086809A2 (en) 2000-05-09 2001-05-08 Method and apparatus for compensating local oscillator frequency error through environmental control

Publications (1)

Publication Number Publication Date
DE60135840D1 true DE60135840D1 (de) 2008-10-30

Family

ID=24268705

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60135840T Expired - Lifetime DE60135840D1 (de) 2000-05-09 2001-05-08

Country Status (15)

Country Link
US (1) US6522871B1 (de)
EP (1) EP1282941B1 (de)
JP (1) JP2003533117A (de)
KR (1) KR100833827B1 (de)
CN (1) CN1256809C (de)
AT (1) ATE408930T1 (de)
AU (2) AU2001259680B2 (de)
BR (1) BR0110683A (de)
CA (1) CA2408595C (de)
DE (1) DE60135840D1 (de)
HK (1) HK1066929A1 (de)
IL (2) IL152664A0 (de)
MX (1) MXPA02011006A (de)
RU (1) RU2333598C2 (de)
WO (1) WO2001086809A2 (de)

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US6374311B1 (en) * 1991-10-01 2002-04-16 Intermec Ip Corp. Communication network having a plurality of bridging nodes which transmit a beacon to terminal nodes in power saving state that it has messages awaiting delivery
US7415548B2 (en) 1991-05-13 2008-08-19 Broadcom Corporation Communication network having a plurality of bridging nodes which transmits a polling message with backward learning technique to determine communication pathway
US7558557B1 (en) * 1991-11-12 2009-07-07 Broadcom Corporation Low-power messaging in a network supporting roaming terminals
AU664864B2 (en) * 1991-10-01 1995-12-07 Broadcom Corporation A radio frequency local area network
US7917145B2 (en) * 1992-11-02 2011-03-29 Broadcom Corporation Radio frequency local area network
US8509260B2 (en) 1993-08-31 2013-08-13 Broadcom Corporation Modular, portable data processing terminal for use in a communication network
DE19943790C2 (de) * 1999-09-13 2001-11-15 Ericsson Telefon Ab L M Verfahren und Vorrichtung zur Bestimmung eines Synchronisationsfehlers in einem Netzwerkknoten
US7212829B1 (en) 2000-02-28 2007-05-01 Chung Lau Method and system for providing shipment tracking and notifications
US7366522B2 (en) 2000-02-28 2008-04-29 Thomas C Douglass Method and system for location tracking
US6975941B1 (en) * 2002-04-24 2005-12-13 Chung Lau Method and apparatus for intelligent acquisition of position information
US7218938B1 (en) 2002-04-24 2007-05-15 Chung Lau Methods and apparatus to analyze and present location information
US7321774B1 (en) 2002-04-24 2008-01-22 Ipventure, Inc. Inexpensive position sensing device
US7905832B1 (en) 2002-04-24 2011-03-15 Ipventure, Inc. Method and system for personalized medical monitoring and notifications therefor
US6928275B1 (en) * 2000-05-08 2005-08-09 Qualcomm Incorporated Method and apparatus for compensating local oscillator frequency error
US6865380B2 (en) * 2001-02-05 2005-03-08 Nokia Corporation Method, apparatus and system for frequency stabilization using cellular signal bursts
US7098748B2 (en) * 2001-09-21 2006-08-29 Schmidt Dominik J Integrated CMOS high precision piezo-electrically driven clock
US7020180B2 (en) * 2001-10-04 2006-03-28 Qualcomm Inc. Method and apparatus for acquiring pilots over code space and frequency errors in a CDMA communication system
US6965754B2 (en) * 2001-10-09 2005-11-15 Motorola, Inc. Satellite positioning system receiver with reference oscillator circuit and methods therefor
AU2002231660A1 (en) * 2001-12-05 2003-06-17 Nokia Corporation Frequency offset correction based on the presence or absence of a received signal
US9049571B2 (en) 2002-04-24 2015-06-02 Ipventure, Inc. Method and system for enhanced messaging
US9182238B2 (en) 2002-04-24 2015-11-10 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US7649426B2 (en) * 2006-09-12 2010-01-19 Cts Corporation Apparatus and method for temperature compensation of crystal oscillators
KR100924172B1 (ko) * 2006-12-08 2009-10-28 한국전자통신연구원 가변 대역폭 무선채널 측정 방법 및 이를 위한 송수신장치
WO2010043260A1 (en) 2008-10-15 2010-04-22 Nokia Corporation Temperature sensor for oscillator and for satellite positioning circuitry
US8299920B2 (en) 2009-09-25 2012-10-30 Fedex Corporate Services, Inc. Sensor based logistics system
US9633327B2 (en) 2009-09-25 2017-04-25 Fedex Corporate Services, Inc. Sensor zone management
US8239169B2 (en) 2009-09-25 2012-08-07 Gregory Timothy L Portable computing device and method for asset management in a logistics system
US8730101B2 (en) 2010-05-13 2014-05-20 Qualcomm Incorporated High sensitivity satellite positioning system receiver
US9568609B2 (en) 2010-05-13 2017-02-14 Qualcomm Incorporated High sensitivity satellite positioning system receiver
US8781045B2 (en) * 2010-09-02 2014-07-15 Mediatek Inc. Communication apparatuses and wireless communications modules
JP5110141B2 (ja) * 2010-09-29 2012-12-26 カシオ計算機株式会社 衛星電波受信装置及び衛星電波受信方法
RU2477922C2 (ru) * 2010-12-20 2013-03-20 Открытое акционерное общество "Омский научно-исследовательский институт приборостроения" (ОАО "ОНИИП") Способ обнаружения сигналов при априорной неопределенности их параметров
US8744518B2 (en) * 2012-04-09 2014-06-03 Apple Inc. Mechanism for reducing time away from packet switched operation in a single radio solution
US8729977B2 (en) * 2012-06-12 2014-05-20 Qualcomm Incorporated Compensation for crystal frequency using multiple temperatures
JP2015128220A (ja) * 2013-12-27 2015-07-09 セイコーエプソン株式会社 発振回路、発振器、電子機器、移動体及び発振器の周波数調整方法
US9548744B2 (en) 2014-08-18 2017-01-17 Qualcomm Incorporated Compensating for hysteretic characteristics of crystal oscillators
FR3107629B1 (fr) * 2020-02-21 2022-04-29 St Microelectronics Grenoble 2 Compensation de dérive
FR3107628B1 (fr) 2020-02-21 2022-12-02 St Microelectronics Grenoble 2 Compensation de dérive
FR3107626B1 (fr) * 2020-02-21 2022-03-11 St Microelectronics Grenoble 2 Compensation de dérive

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US5204975A (en) * 1989-10-12 1993-04-20 Seiko Epson Corporation Digitally-corrected temperature-compensated crystal oscillator having a correction-suspend control for communications service
US5113416A (en) * 1990-10-26 1992-05-12 Ericsson Ge Mobile Communications Holding, Inc. Digital radio frequency compensation
US5218618A (en) * 1990-11-07 1993-06-08 Hughes Aircraft Company Cellular telephone service using spread spectrum transmission
FI90383C (fi) * 1992-03-09 1994-01-25 Nokia Mobile Phones Ltd Menetelmä radiopuhelimen referenssitaajuuden stabiloimiseksi
CA2097974A1 (en) * 1992-08-03 1994-02-04 Kristine P. Maine Remote position determination
US5659884A (en) * 1995-02-10 1997-08-19 Matsushita Communication Industrial Corp. Of America System with automatic compensation for aging and temperature of a crystal oscillator
JP3186500B2 (ja) * 1995-03-29 2001-07-11 三菱電機株式会社 無線装置及び無線装置の調整方法
IT1277202B1 (it) * 1995-06-30 1997-11-05 Sits Soc It Telecom Siemens Procedimento di stabilizzazione automatica della frequenza di oscillatore locale in radioricevitori impieganti un oscillatore
US5841396A (en) * 1996-03-08 1998-11-24 Snaptrack, Inc. GPS receiver utilizing a communication link
US5604468A (en) * 1996-04-22 1997-02-18 Motorola, Inc. Frequency synthesizer with temperature compensation and frequency multiplication and method of providing the same
US5740525A (en) * 1996-05-10 1998-04-14 Motorola, Inc. Method and apparatus for temperature compensation of a reference oscillator in a communication device
US5777524A (en) * 1997-07-29 1998-07-07 Motorola, Inc. Temperature compensation circuit for a crystal oscillator and associated circuitry
US5731742A (en) * 1996-12-17 1998-03-24 Motorola Inc. External component programming for crystal oscillator temperature compensation
JP3270701B2 (ja) * 1996-12-26 2002-04-02 株式会社エヌ・ティ・ティ・ドコモ 移動無線機
JP3234527B2 (ja) * 1997-03-28 2001-12-04 三洋電機株式会社 ラジオ受信機
JP3070530B2 (ja) * 1997-06-09 2000-07-31 日本電気株式会社 自動周波数制御方法及び回路
US5856766A (en) * 1997-06-30 1999-01-05 Motorola Inc. Communication device with a frequency compensating synthesizer and method of providing same
US6122506A (en) * 1998-05-04 2000-09-19 Trimble Navigation Limited GSM cellular telephone and GPS receiver combination
CN1118946C (zh) * 1998-07-07 2003-08-20 三菱电机株式会社 功率控制装置

Also Published As

Publication number Publication date
WO2001086809A3 (en) 2002-03-07
KR20030003274A (ko) 2003-01-09
CA2408595C (en) 2009-11-10
KR100833827B1 (ko) 2008-06-02
IL152664A0 (en) 2003-06-24
US6522871B1 (en) 2003-02-18
WO2001086809A2 (en) 2001-11-15
MXPA02011006A (es) 2003-04-25
AU5968001A (en) 2001-11-20
AU2001259680B2 (en) 2005-12-22
CN1529939A (zh) 2004-09-15
EP1282941A2 (de) 2003-02-12
EP1282941B1 (de) 2008-09-17
BR0110683A (pt) 2004-02-10
ATE408930T1 (de) 2008-10-15
CN1256809C (zh) 2006-05-17
RU2333598C2 (ru) 2008-09-10
IL152664A (en) 2006-12-10
CA2408595A1 (en) 2001-11-15
JP2003533117A (ja) 2003-11-05
HK1066929A1 (en) 2005-04-01

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Legal Events

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8364 No opposition during term of opposition