HK1133334A1 - Efficient clock calibration in electronic equipment - Google Patents

Efficient clock calibration in electronic equipment

Info

Publication number
HK1133334A1
HK1133334A1 HK09110935.8A HK09110935A HK1133334A1 HK 1133334 A1 HK1133334 A1 HK 1133334A1 HK 09110935 A HK09110935 A HK 09110935A HK 1133334 A1 HK1133334 A1 HK 1133334A1
Authority
HK
Hong Kong
Prior art keywords
calibration
reference clock
start time
calibration period
electronic equipment
Prior art date
Application number
HK09110935.8A
Other languages
English (en)
Inventor
Jacobus Haartsen
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of HK1133334A1 publication Critical patent/HK1133334A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Manipulation Of Pulses (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Mobile Radio Communication Systems (AREA)
HK09110935.8A 2006-10-12 2009-11-23 Efficient clock calibration in electronic equipment HK1133334A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/548,784 US7272078B1 (en) 2006-10-12 2006-10-12 Efficient clock calibration in electronic equipment
PCT/EP2007/059491 WO2008043629A1 (en) 2006-10-12 2007-09-11 Efficient clock calibration in electronic equipment

Publications (1)

Publication Number Publication Date
HK1133334A1 true HK1133334A1 (en) 2010-03-19

Family

ID=38543866

Family Applications (1)

Application Number Title Priority Date Filing Date
HK09110935.8A HK1133334A1 (en) 2006-10-12 2009-11-23 Efficient clock calibration in electronic equipment

Country Status (12)

Country Link
US (1) US7272078B1 (xx)
EP (1) EP2089970B1 (xx)
JP (1) JP4994456B2 (xx)
CN (1) CN101523726B (xx)
AT (1) ATE467272T1 (xx)
BR (1) BRPI0717795B1 (xx)
DE (1) DE602007006341D1 (xx)
DK (1) DK2089970T3 (xx)
ES (1) ES2345294T3 (xx)
HK (1) HK1133334A1 (xx)
TW (1) TWI399548B (xx)
WO (1) WO2008043629A1 (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8942150B2 (en) * 2007-03-19 2015-01-27 Qualcomm Incorporated Uplink timing control
US8170165B2 (en) * 2007-12-05 2012-05-01 Agere Systems Inc. Clock calibration in sleep mode
US7881895B2 (en) * 2008-05-27 2011-02-01 Sony Ericsson Mobile Communications Ab Methods of calibrating a clock using multiple clock periods with a single counter and related devices and methods
US8135553B2 (en) * 2008-07-31 2012-03-13 Mediatek Inc. Method for clock calibration
US8407037B2 (en) * 2008-11-05 2013-03-26 Qualcomm, Incorporated Methods and apparatus for clock simulation with calibration
EP2369438B1 (en) * 2010-02-24 2014-02-26 Fujitsu Semiconductor Limited Calibration method of a real time clock signal
US9766682B1 (en) * 2014-01-27 2017-09-19 Marvell International Ltd. Wakeup time system using drift estimation
KR102665713B1 (ko) * 2016-12-21 2024-05-14 에스케이하이닉스 주식회사 듀티 보정 회로 및 듀티 보정 방법
US10849086B2 (en) * 2017-07-20 2020-11-24 Itron Networked Solutions, Inc. Compensating for oscillator drift in wireless mesh networks
EP3462276A4 (en) * 2017-08-04 2019-08-21 Shenzhen Goodix Technology Co., Ltd. SYNCHRONIZATION METHOD, CLOCK DEVICE, AND TERMINAL DEVICE
GB201800552D0 (en) * 2018-01-12 2018-02-28 Nordic Semiconductor Asa Clock calibration
CN113038445B (zh) * 2021-03-26 2022-11-18 上海磐启微电子有限公司 一种蓝牙休眠时钟的校准方法
CN114138056B (zh) * 2021-11-04 2024-05-17 珠海格力节能环保制冷技术研究中心有限公司 显示终端时钟校准方法、装置及显示终端

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1014468B (zh) * 1985-04-01 1991-10-23 霍尼韦尔资料系统有限公司 测量频率和时间的装置和方法
JPH0567967A (ja) 1991-09-09 1993-03-19 Nec Corp クロツク発生装置
US5424664A (en) * 1993-07-02 1995-06-13 Rockwell International Corporation Direct digital synthesizer with adjustable clock frequency
JP3125562B2 (ja) * 1994-03-10 2001-01-22 富士電機株式会社 クロック発生回路
KR960010758B1 (ko) * 1994-06-27 1996-08-08 엘지반도체 주식회사 주파수 측정회로
US6016312A (en) * 1997-02-28 2000-01-18 Motorola, Inc. Radiotelephone and method for clock calibration for slotted paging mode in a CDMA radiotelephone system
EP0939495B1 (en) 1998-02-26 2004-04-14 Motorola Semiconducteurs S.A. Power saving system for an electronic portable device
US6088602A (en) 1998-03-27 2000-07-11 Lsi Logic Corporation High resolution frequency calibrator for sleep mode clock in wireless communications mobile station
US6124764A (en) * 1999-01-22 2000-09-26 Telefonaktiebolaget Lm Ericsson Stable low-power oscillator
KR100295812B1 (ko) * 1999-06-18 2001-07-12 서평원 고속 위상검출기를 이용한 디지털 위상동기루프
US6304517B1 (en) * 1999-06-18 2001-10-16 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for real time clock frequency error correction
EP1137186B1 (en) * 2000-03-20 2004-07-21 Motorola, Inc. An adjustable spread spectrum clock generator and a method thereof
US6725067B1 (en) * 2000-03-24 2004-04-20 International Business Machines Corporation Method and system for restarting a reference clock of a mobile station after a sleep period with a zero mean time error
DE10029421C2 (de) 2000-06-15 2002-07-11 Infineon Technologies Ag Kalibriervorrichtung und -verfahren für die Taktgenerierung auf einem integrierten Schaltkreis
US6889055B1 (en) 2000-10-16 2005-05-03 Qualcomm Inc. Technique for reducing average power consumption in a wireless communications device
ES2280877T3 (es) 2000-12-07 2007-09-16 Qualcomm Incorporated Procedimiento y aparato para compensar la deriva de frecuencia en una señal de reloj de espera.
DE50308936D1 (de) 2002-08-26 2008-02-14 Infineon Technologies Ag Verfahren und vorrichtung zum erfassen von periodendauerschwankungen periodischer signale
GB2397465B (en) 2003-01-15 2004-12-29 Nec Technologies Mobile radio communications device and operating method
JP4119774B2 (ja) * 2003-03-13 2008-07-16 京セラ株式会社 携帯電話機及び携帯電話機のｒｔｃ補正方法
DE60311851D1 (de) 2003-12-29 2007-03-29 St Microelectronics Srl Vorrichtung und Verfahren zur Oszillatorfrequenzkalibrierung und Phasenregelkreis diese benützend.
US20050221870A1 (en) 2004-04-06 2005-10-06 Integration Associates Inc. Method and circuit for determining a slow clock calibration factor
KR100673885B1 (ko) * 2004-04-27 2007-01-26 주식회사 하이닉스반도체 반도체 기억 소자의 듀티 싸이클 교정 장치 및 그 방법

Also Published As

Publication number Publication date
CN101523726A (zh) 2009-09-02
DE602007006341D1 (de) 2010-06-17
JP4994456B2 (ja) 2012-08-08
EP2089970B1 (en) 2010-05-05
TWI399548B (zh) 2013-06-21
ES2345294T3 (es) 2010-09-20
EP2089970A1 (en) 2009-08-19
ATE467272T1 (de) 2010-05-15
BRPI0717795B1 (pt) 2020-01-07
DK2089970T3 (da) 2010-08-16
WO2008043629A1 (en) 2008-04-17
JP2010506523A (ja) 2010-02-25
TW200821588A (en) 2008-05-16
CN101523726B (zh) 2012-01-11
US7272078B1 (en) 2007-09-18
BRPI0717795A2 (pt) 2014-04-15

Similar Documents

Publication Publication Date Title
HK1133334A1 (en) Efficient clock calibration in electronic equipment
TW200731685A (en) Apparatus and methods for estimating a sleep clock frequency
TW200710372A (en) Distance measuring apparatus
NZ593337A (en) Measuring change in a respiratory parameter over time to detect acute events and trends
WO2008133927A8 (en) Measurement instrument and method
WO2009094324A3 (en) Sensor for measuring moisture and salinity
WO2009063400A3 (en) Orientation measurement of an object
TW200734654A (en) Determining frequency components of jitter
TW200728802A (en) Measurement device for measuring gray-to-gray response time
ATE444496T1 (de) Verfahren und vorrichtung zur messung des tastverhältnisses oder relativen tastverhältnisses eines digitalen signals
JP2010506523A5 (xx)
EP2284497A3 (en) Counting device, physical quantity sensor, counting method and physical quantity measuring method
TW200606408A (en) Apparatus for treating temperature compensation
IL188783A0 (en) Method of ensuring dete and time on a test meter is accurate
WO2011159600A3 (en) Diagnostic kit and method for measuring balloon dimension in vivo
ATE427476T1 (de) Vorrichtung und verfahren zur koordinatenmessung
GB2450463A (en) Fractional sampling of electrical energy
WO2008155843A1 (ja) 雑音測定装置及び試験装置
WO2012082274A3 (en) Timing-drift calibration
EP2262135A3 (en) A method and device in a communication network
MY167763A (en) Acoustic thickness measurements using gas as a coupling medium
EP2112810A4 (en) METHOD AND DEVICE FOR LINE MEASUREMENT
WO2009031506A1 (ja) 低密度リポタンパク質（ｌｄｌ）コレステロール測定方法およびｌｄｌコレステロール測定用試験片
TW200737810A (en) Determination and use of adaptive thresholds for received messages
WO2003036313A1 (fr) Appareil et procede de mesure de deplacement lateral d'horloge

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: 20230909