BRPI0717795A2 - Método e aparelho para determinar uma medição representativa que é indicativa de uma velocidade de oscilação relativa de um relógio de refrência durante um período de calibração representativo, e, aparelho para determinar um número medido de ciclos de um sinal de relógio de referência que ocorre durante um período de calibração representativo. - Google Patents

Método e aparelho para determinar uma medição representativa que é indicativa de uma velocidade de oscilação relativa de um relógio de refrência durante um período de calibração representativo, e, aparelho para determinar um número medido de ciclos de um sinal de relógio de referência que ocorre durante um período de calibração representativo.

Info

Publication number
BRPI0717795A2
BRPI0717795A2 BRPI0717795-0A2A BRPI0717795A BRPI0717795A2 BR PI0717795 A2 BRPI0717795 A2 BR PI0717795A2 BR PI0717795 A BRPI0717795 A BR PI0717795A BR PI0717795 A2 BRPI0717795 A2 BR PI0717795A2
Authority
BR
Brazil
Prior art keywords
calibration period
representative
determining
circular
reference clock
Prior art date
Application number
BRPI0717795-0A2A
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 BRPI0717795A2 publication Critical patent/BRPI0717795A2/pt
Publication of BRPI0717795B1 publication Critical patent/BRPI0717795B1/pt

Links

Classifications

    • 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
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • 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)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electric Clocks (AREA)
  • Manipulation Of Pulses (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
BRPI0717795-0A 2006-10-12 2007-09-11 Método e aparelho para determinar uma medição representativa que é indicativa de uma velocidade de oscilação relativa de um relógio de referência durante um período de calibração representativo, e, aparelho para determinar um número medido de ciclos de um sinal de relógio de referência que ocorre durante um período de calibração representativo BRPI0717795B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/548,784 US7272078B1 (en) 2006-10-12 2006-10-12 Efficient clock calibration in electronic equipment
US11/548784 2006-10-12
PCT/EP2007/059491 WO2008043629A1 (en) 2006-10-12 2007-09-11 Efficient clock calibration in electronic equipment

Publications (2)

Publication Number Publication Date
BRPI0717795A2 true BRPI0717795A2 (pt) 2014-04-15
BRPI0717795B1 BRPI0717795B1 (pt) 2020-01-07

Family

ID=38543866

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0717795-0A BRPI0717795B1 (pt) 2006-10-12 2007-09-11 Método e aparelho para determinar uma medição representativa que é indicativa de uma velocidade de oscilação relativa de um relógio de referência durante um período de calibração representativo, e, aparelho para determinar um número medido de ciclos de um sinal de relógio de referência que ocorre durante um período de calibração representativo

Country Status (12)

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

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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
CN114489239B (zh) * 2022-01-21 2024-06-04 国微集团(深圳)有限公司 动态校准实时时钟的方法及装置

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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
ATE354212T1 (de) 2000-12-07 2007-03-15 Qualcomm Inc Verfahren und apparat zur kompensation der frequenzabweichung innerhalb eines schlaftaktsignals
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EP1551102B1 (en) 2003-12-29 2007-02-14 STMicroelectronics S.r.l. Device for calibrating the frequency of an oscillator, phase looked loop circuit comprising said calibration device and related frequency calibration method.
US20050221870A1 (en) 2004-04-06 2005-10-06 Integration Associates Inc. Method and circuit for determining a slow clock calibration factor
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Also Published As

Publication number Publication date
WO2008043629A1 (en) 2008-04-17
JP4994456B2 (ja) 2012-08-08
EP2089970A1 (en) 2009-08-19
CN101523726A (zh) 2009-09-02
CN101523726B (zh) 2012-01-11
DK2089970T3 (da) 2010-08-16
ES2345294T3 (es) 2010-09-20
JP2010506523A (ja) 2010-02-25
ATE467272T1 (de) 2010-05-15
HK1133334A1 (en) 2010-03-19
DE602007006341D1 (de) 2010-06-17
US7272078B1 (en) 2007-09-18
BRPI0717795B1 (pt) 2020-01-07
TW200821588A (en) 2008-05-16
TWI399548B (zh) 2013-06-21
EP2089970B1 (en) 2010-05-05

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06T Formal requirements before examination [chapter 6.20 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H03L 7/00 , G01R 23/10

Ipc: H03L 1/00 (1980.01), H03L 7/00 (1980.01), G01R 23/

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 07/01/2020, OBSERVADAS AS CONDICOES LEGAIS.