BR9712641A - Aparelho e processo para regular a freqœência de um sinal oscilante de saìda, circuito em anel de retenção de fase, e, processo de calibração para calibrar um dispositivo responsivo a valores de um sinal de referência - Google Patents

Aparelho e processo para regular a freqœência de um sinal oscilante de saìda, circuito em anel de retenção de fase, e, processo de calibração para calibrar um dispositivo responsivo a valores de um sinal de referência

Info

Publication number
BR9712641A
BR9712641A BR9712641-1A BR9712641A BR9712641A BR 9712641 A BR9712641 A BR 9712641A BR 9712641 A BR9712641 A BR 9712641A BR 9712641 A BR9712641 A BR 9712641A
Authority
BR
Brazil
Prior art keywords
reference signal
values
frequency
calibrating
regulating
Prior art date
Application number
BR9712641-1A
Other languages
English (en)
Inventor
Jacob Kristian Osterling
Mats Kristian Lindskong
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 BR9712641A publication Critical patent/BR9712641A/pt

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
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Paper (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

"APARELHO E PROCESSO PARA REGULAR A FREQœENCIA DE UM SINAL OSCILANTE DE SAìDA, CIRCUITO EM ANEL DE RETENçãO DE FASE, E, PROCESSO DE CALIBRAçãO PARA CALIBRAR UM DISPOSITIVO RESPONSIVO A VALORES DE UM SINAL DE REFERêNCIA". Aparelho (82) e um processo associado (202) para calibrar um dispositivo (44) responsivo a valores de um sinal de referência (89). O sinal de referência pode ser sujeito a perturbações a curto prazo. Em uma implementação, uma estação base de rádio utiliza um oscilar Stratum-2 (84) com o qual sincronizar a fase de um VCO (44) de uma estação base. Compensação é realizada para o envelhecimento do oscilador Stratum-2, para desse modo proporcionar um sinal de regulação levando o VCO a exibir características de estabilidade de freq³ência a curto-prazo e a longo-prazo aceitáveis.
BR9712641-1A 1996-10-22 1997-10-10 Aparelho e processo para regular a freqœência de um sinal oscilante de saìda, circuito em anel de retenção de fase, e, processo de calibração para calibrar um dispositivo responsivo a valores de um sinal de referência BR9712641A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2956696P 1996-10-22 1996-10-22
US08/821,114 US5870001A (en) 1996-10-22 1997-03-20 Apparatus, and associated method, for calibrating a device
PCT/SE1997/001704 WO1998018206A1 (en) 1996-10-22 1997-10-10 Apparatus and associated method for calibrating a device

Publications (1)

Publication Number Publication Date
BR9712641A true BR9712641A (pt) 1999-10-26

Family

ID=26705088

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9712641-1A BR9712641A (pt) 1996-10-22 1997-10-10 Aparelho e processo para regular a freqœência de um sinal oscilante de saìda, circuito em anel de retenção de fase, e, processo de calibração para calibrar um dispositivo responsivo a valores de um sinal de referência

Country Status (9)

Country Link
US (1) US5870001A (pt)
EP (1) EP0934628B1 (pt)
CN (1) CN1197248C (pt)
AU (1) AU737704B2 (pt)
BR (1) BR9712641A (pt)
CA (1) CA2270192C (pt)
DE (1) DE69724138T2 (pt)
TW (1) TW349295B (pt)
WO (1) WO1998018206A1 (pt)

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US6256507B1 (en) 1998-08-31 2001-07-03 Telefonaktiebolaget Lm Ericsson (Publ) Telecommunications network synchronization for data services
US6081163A (en) * 1999-01-22 2000-06-27 Advantest Corp. Standard frequency and timing generator and generation method thereof
DE19943790C2 (de) 1999-09-13 2001-11-15 Ericsson Telefon Ab L M Verfahren und Vorrichtung zur Bestimmung eines Synchronisationsfehlers in einem Netzwerkknoten
US6300798B1 (en) * 1999-10-15 2001-10-09 Intel Corporation Method and apparatus for controlling compensated buffers
DE19956094C2 (de) * 1999-11-22 2002-08-29 Siemens Ag Verfahren zum Betrieb eines GSM-Mobilfunksystems
EP1111947A1 (en) 1999-12-22 2001-06-27 Telefonaktiebolaget L M Ericsson (Publ) Cordless telephone system
US7103124B1 (en) 1999-12-30 2006-09-05 Telefonaktiebolaget Lm Ericsson (Publ) Synchronization of nodes
GB2363557A (en) * 2000-06-16 2001-12-19 At & T Lab Cambridge Ltd Method of extracting a signal from a contaminated signal
US7277727B1 (en) * 2000-11-22 2007-10-02 Sprint Communications Company L.P. System and method for processing a signal
JP3808338B2 (ja) * 2001-08-30 2006-08-09 株式会社ルネサステクノロジ 位相同期回路
US7062229B2 (en) * 2002-03-06 2006-06-13 Qualcomm Incorporated Discrete amplitude calibration of oscillators in frequency synthesizers
US7546097B2 (en) * 2002-03-06 2009-06-09 Qualcomm Incorporated Calibration techniques for frequency synthesizers
US6932569B2 (en) * 2002-05-17 2005-08-23 Sikorsky Aircraft Corporation Active control of multi-element rotor blade airfoils
US6781096B2 (en) * 2002-08-09 2004-08-24 Matrix Innovations, Llc Apparatus and method for pattern-based control of a system
US6784727B1 (en) * 2003-05-21 2004-08-31 Hyperband Communication, Inc. Fast-settling DC offset removal circuits with continuous cutoff frequency switching
US6973400B2 (en) * 2003-10-10 2005-12-06 Itron, Inc. System and method for oscillator self-calibration using AC line frequency
CN1870479B (zh) * 2006-06-12 2010-08-04 华为技术有限公司 一种实现对铷钟老化补偿的系统和方法
US7738611B2 (en) * 2006-08-07 2010-06-15 Harris Stratex Networks, Inc. Remote monitoring and calibration of system reference clock using network timing reference
TW200934124A (en) * 2008-01-21 2009-08-01 Taitien Electronics Co Ltd Aging compensation correction method, control module and apparatus for oscillator circuit device
CN101534119B (zh) * 2008-03-12 2012-07-25 泰艺电子股份有限公司 振荡器电路装置的老化补偿校正方法、控制模组及其装置
US10302699B1 (en) * 2018-02-27 2019-05-28 Amazon Technologies, Inc. Precise transmission medium delay measurement
DE102018009074B3 (de) 2018-11-19 2020-01-02 esz AG calibration & metrology Verfahren zur kalibrierung eines prüfgegenstandes

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US3621451A (en) * 1969-02-26 1971-11-16 Hewlett Packard Co Frequency multiplier
US4001714A (en) * 1975-11-12 1977-01-04 Motorola, Inc. Search and confirm frequency synthesizer
EP0391144A3 (de) * 1989-04-07 1991-04-24 Siemens Aktiengesellschaft Verfahren zur Synchronisation einer Takteinrichtung eines getakteten elektrischen Systems
WO1993005578A1 (en) * 1991-08-30 1993-03-18 Fujitsu Limited Frequency synthesizer
US5726607A (en) * 1992-06-15 1998-03-10 Adc Telecommunications, Inc. Phase locked loop using a counter and a microcontroller to produce VCXO control signals
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JP3085511B2 (ja) * 1994-11-24 2000-09-11 株式会社アドバンテスト 基準周波数発生装置
US5594739A (en) * 1995-11-01 1997-01-14 Telefonaktiebolaget Lm Ericsson System and method for rapid selection of synchronization sources in a mobile telecommunications network
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Also Published As

Publication number Publication date
EP0934628B1 (en) 2003-08-13
DE69724138T2 (de) 2004-06-09
CA2270192A1 (en) 1998-04-30
EP0934628A1 (en) 1999-08-11
WO1998018206A1 (en) 1998-04-30
CN1197248C (zh) 2005-04-13
US5870001A (en) 1999-02-09
TW349295B (en) 1999-01-01
CN1242115A (zh) 2000-01-19
AU737704B2 (en) 2001-08-30
DE69724138D1 (de) 2003-09-18
AU4796897A (en) 1998-05-15
CA2270192C (en) 2006-03-28

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Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements