HK1066929A1 - Method and apparatus for compensating local oscillator frequency error through environmental control - Google Patents

Method and apparatus for compensating local oscillator frequency error through environmental control

Info

Publication number
HK1066929A1
HK1066929A1 HK04109625A HK04109625A HK1066929A1 HK 1066929 A1 HK1066929 A1 HK 1066929A1 HK 04109625 A HK04109625 A HK 04109625A HK 04109625 A HK04109625 A HK 04109625A HK 1066929 A1 HK1066929 A1 HK 1066929A1
Authority
HK
Hong Kong
Prior art keywords
frequency error
frequency
local oscillator
environmental control
oscillator frequency
Prior art date
Application number
HK04109625A
Other languages
English (en)
Inventor
Patrick Christopher
Saed G Younis
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
Publication of HK1066929A1 publication Critical patent/HK1066929A1/xx

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)
  • Amplifiers (AREA)
  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Circuits Of Receivers In General (AREA)
HK04109625A 2000-05-09 2004-12-06 Method and apparatus for compensating local oscillator frequency error through environmental control HK1066929A1 (en)

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
HK1066929A1 true HK1066929A1 (en) 2005-04-01

Family

ID=24268705

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04109625A HK1066929A1 (en) 2000-05-09 2004-12-06 Method and apparatus for compensating local oscillator frequency error through environmental control

Country Status (15)

Country Link
US (1) US6522871B1 (xx)
EP (1) EP1282941B1 (xx)
JP (1) JP2003533117A (xx)
KR (1) KR100833827B1 (xx)
CN (1) CN1256809C (xx)
AT (1) ATE408930T1 (xx)
AU (2) AU5968001A (xx)
BR (1) BR0110683A (xx)
CA (1) CA2408595C (xx)
DE (1) DE60135840D1 (xx)
HK (1) HK1066929A1 (xx)
IL (2) IL152664A0 (xx)
MX (1) MXPA02011006A (xx)
RU (1) RU2333598C2 (xx)
WO (1) WO2001086809A2 (xx)

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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
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US7403972B1 (en) 2002-04-24 2008-07-22 Ip Venture, Inc. Method and system for enhanced messaging
US7321774B1 (en) 2002-04-24 2008-01-22 Ipventure, Inc. Inexpensive position sensing device
US7212829B1 (en) 2000-02-28 2007-05-01 Chung Lau Method and system for providing shipment tracking and notifications
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
US7366522B2 (en) 2000-02-28 2008-04-29 Thomas C Douglass Method and system for location tracking
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
WO2003049391A1 (en) * 2001-12-05 2003-06-12 Nokia Corporation Frequency offset correction based on the presence or absence of a received signal
US9182238B2 (en) 2002-04-24 2015-11-10 Ipventure, Inc. Method and apparatus for intelligent acquisition of position information
US9049571B2 (en) 2002-04-24 2015-06-02 Ipventure, Inc. Method and system for enhanced messaging
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
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US9633327B2 (en) 2009-09-25 2017-04-25 Fedex Corporate Services, Inc. Sensor zone management
US9568609B2 (en) 2010-05-13 2017-02-14 Qualcomm Incorporated High sensitivity satellite positioning system receiver
US8730101B2 (en) 2010-05-13 2014-05-20 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
FR3107628B1 (fr) 2020-02-21 2022-12-02 St Microelectronics Grenoble 2 Compensation de dérive
FR3107629B1 (fr) 2020-02-21 2022-04-29 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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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
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Also Published As

Publication number Publication date
EP1282941A2 (en) 2003-02-12
ATE408930T1 (de) 2008-10-15
RU2333598C2 (ru) 2008-09-10
WO2001086809A3 (en) 2002-03-07
WO2001086809A2 (en) 2001-11-15
KR20030003274A (ko) 2003-01-09
AU2001259680B2 (en) 2005-12-22
JP2003533117A (ja) 2003-11-05
KR100833827B1 (ko) 2008-06-02
IL152664A (en) 2006-12-10
CA2408595A1 (en) 2001-11-15
CN1529939A (zh) 2004-09-15
US6522871B1 (en) 2003-02-18
EP1282941B1 (en) 2008-09-17
DE60135840D1 (xx) 2008-10-30
CA2408595C (en) 2009-11-10
MXPA02011006A (es) 2003-04-25
AU5968001A (en) 2001-11-20
IL152664A0 (en) 2003-06-24
BR0110683A (pt) 2004-02-10
CN1256809C (zh) 2006-05-17

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20110508