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FI20000638A7 - Oskillaattorin säätö - Google Patents

Oskillaattorin säätö Download PDF

Info

Publication number
FI20000638A7
FI20000638A7 FI20000638A FI20000638A FI20000638A7 FI 20000638 A7 FI20000638 A7 FI 20000638A7 FI 20000638 A FI20000638 A FI 20000638A FI 20000638 A FI20000638 A FI 20000638A FI 20000638 A7 FI20000638 A7 FI 20000638A7
Authority
FI
Finland
Prior art keywords
oscillator
clock
adjusting
packet network
time
Prior art date
Application number
FI20000638A
Other languages
English (en)
Swedish (sv)
Other versions
FI20000638A0 (fi
FI20000638L (fi
Inventor
Janne Kallio
Ari Helaakoski
Original Assignee
Nokia Corp
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 Nokia Corp filed Critical Nokia Corp
Priority to FI20000638A priority Critical patent/FI20000638L/fi
Publication of FI20000638A0 publication Critical patent/FI20000638A0/fi
Priority to EP01660019A priority patent/EP1134921A3/en
Priority to US09/810,017 priority patent/US6522205B2/en
Priority to JP2001078379A priority patent/JP2001308833A/ja
Publication of FI20000638A7 publication Critical patent/FI20000638A7/fi
Publication of FI20000638L publication Critical patent/FI20000638L/fi

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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/28—Timers or timing mechanisms used in protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
    • H04J3/0632—Synchronisation of packets and cells, e.g. transmission of voice via a packet network, circuit emulation service [CES]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

Keksinnön kohteena on menetelmä oskillaattorin (44) säätämiseksi, jonka oskillaattorin ja määrätyn aikalähteen (31), jolla on tiedossaan määrätyn tarkkuinen kellonaika, välillä on pakettiverkko (21). Menetelmässä päivitetään pakettiverkon (21) ylitse mainitun aikalähteen (31) tietämän kellonajan perusteella kelloa (42), joka kello (42) on pakettiverkon (21) samalla puolella kuin säädettävä oskillaattori (44). Mainittua kelloa (42) käytetään oskillaattorin (44) säädössä oskillaattorin (44) saamiseksi värähtelemään halutulla taajuudella. Keksinnön kohteena on myös laitteisto ja tietokoneohjelmisto oskillaattorin säätämiseksi. Kuvio 4.
FI20000638A 2000-03-17 2000-03-17 Oskillaattorin säätö FI20000638L (fi)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI20000638A FI20000638L (fi) 2000-03-17 2000-03-17 Oskillaattorin säätö
EP01660019A EP1134921A3 (en) 2000-03-17 2001-01-31 Adjustment of oscillator
US09/810,017 US6522205B2 (en) 2000-03-17 2001-03-16 Long term stability of an oscillator using a time source on a packet switched network
JP2001078379A JP2001308833A (ja) 2000-03-17 2001-03-19 発振器を調整するための方法および装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20000638A FI20000638L (fi) 2000-03-17 2000-03-17 Oskillaattorin säätö

Publications (3)

Publication Number Publication Date
FI20000638A0 FI20000638A0 (fi) 2000-03-17
FI20000638A7 true FI20000638A7 (fi) 2001-09-18
FI20000638L FI20000638L (fi) 2001-09-18

Family

ID=8557973

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20000638A FI20000638L (fi) 2000-03-17 2000-03-17 Oskillaattorin säätö

Country Status (4)

Country Link
US (1) US6522205B2 (fi)
EP (1) EP1134921A3 (fi)
JP (1) JP2001308833A (fi)
FI (1) FI20000638L (fi)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831968B1 (fr) 2001-11-06 2004-06-25 St Microelectronics Sa Dispositif de calibrage d'un signal d'horloge
US6868509B2 (en) * 2001-12-07 2005-03-15 Invensys Systems, Inc. Method and apparatus for network fault correction via adaptive fault router
US20030132809A1 (en) * 2002-01-17 2003-07-17 Chinnugounder Senthilkumar Oscillator with tunable capacitor
JP3906712B2 (ja) * 2002-02-27 2007-04-18 株式会社日立製作所 データストリーム処理装置
US7599293B1 (en) * 2002-04-25 2009-10-06 Lawrence Michael Bain System and method for network traffic and I/O transaction monitoring of a high speed communications network
US7372875B2 (en) * 2002-09-30 2008-05-13 Lucent Technologies Inc. Systems and methods for synchronization in asynchronous transport networks
JP2004289561A (ja) * 2003-03-24 2004-10-14 Sony Corp ネットワーク接続の管理方法および電子機器
US7602815B2 (en) 2003-09-04 2009-10-13 Broadcom Corporation Using network time protocol in voice over packet transmission
JP4537133B2 (ja) * 2004-07-09 2010-09-01 キヤノン株式会社 プリンタ及び制御方法及びプログラム並びに記憶媒体
US8028097B2 (en) * 2004-10-04 2011-09-27 Sony Corporation System and method for synchronizing audio-visual devices on a power line communications (PLC) network
JP4366661B2 (ja) * 2006-03-17 2009-11-18 ソニー株式会社 情報処理システムおよび方法、情報処理装置および方法、並びにプログラム
CN1964352B (zh) * 2006-09-22 2010-09-08 华为技术有限公司 一种提高时钟精度的方法和装置
TWM323062U (en) * 2007-06-20 2007-12-01 Princeton Technology Corp Correcting apparatus and clock device using the same
JP2009194778A (ja) * 2008-02-16 2009-08-27 Nec Corp 周波数補正方法及び装置
TWI482433B (zh) * 2009-05-14 2015-04-21 Princeton Technology Corp 振盪電路、計時裝置以及電子系統
CN101908012A (zh) * 2009-06-05 2010-12-08 鸿富锦精密工业（深圳）有限公司 时钟信号测试装置及测试方法
FR2951598B1 (fr) * 2009-10-15 2016-02-12 Sagem Comm Dispositif de communication ip et radio a un seul oscillateur et procede de controle de l'oscillateur
JP5093331B2 (ja) * 2010-04-02 2012-12-12 オンキヨー株式会社 コンテンツ再生装置およびそのプログラム
TW201145836A (en) * 2010-06-11 2011-12-16 Askey Computer Corp Device and method for locking and calibrating a frequency
CN103634003B (zh) * 2012-08-14 2016-02-10 上海华虹宏力半导体制造有限公司 Osc频率自动校准电路及自动校准方法
CN104035021B (zh) * 2013-03-07 2016-12-28 上海宏测半导体科技有限公司 时钟芯片的测试方法和系统
FR3005761B1 (fr) * 2013-05-15 2015-06-05 Sagemcom Broadband Sas Dispositif et procede de recalage d'une frequence d'oscillation d'un oscillateur vctcxo
KR102465927B1 (ko) * 2016-01-26 2022-11-14 삼성전자주식회사 복수의 운영 체제 환경에서의 하이버네이션 운용 방법 및 장치
US10528076B2 (en) * 2017-11-28 2020-01-07 Western Digital Technologies, Inc. Clock retiming circuit
EP4059138A4 (en) * 2019-11-13 2023-12-13 National Research Council of Canada STABLE SCALABLE DIGITAL FREQUENCY REFERENCE
CN112637444A (zh) * 2020-11-19 2021-04-09 合肥市卓迩无人机科技服务有限责任公司 多路4k拼接系统NTP毫秒时钟同步算法
US11917569B2 (en) * 2021-07-28 2024-02-27 Landis+Gyr Technology, Inc. Endpoint clock frequency adjustment for narrowband and ultra-narrowband communications in mesh network

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531589A1 (fr) 1982-08-06 1984-02-10 Europ Agence Spatiale Generateur de signaux de synchronisation pour reseau de telecommunications
US4759041A (en) 1987-02-19 1988-07-19 Unisys Corporation Local area network control system synchronization with phase-lock loop
US4868522A (en) * 1988-12-13 1989-09-19 Gazelle Microcircuits, Inc. Clock signal distribution device
EP0459039A1 (en) 1990-05-24 1991-12-04 Hewlett-Packard Company Apparatus and method for generating time data for computer networks
FI95334C (fi) * 1992-04-02 1996-01-10 Nokia Telecommunications Oy Oskillaattoriyksikkö digitaalisen solukkoradioverkon tukiasemaa tai vastaavaa varten
FI93286C (fi) 1993-03-08 1995-03-10 Nokia Telecommunications Oy Menetelmä kellosignaalin muodostamiseksi vaihelukitun silmukan avulla ja vaihelukittu silmukka
US5486864A (en) * 1993-05-13 1996-01-23 Rca Thomson Licensing Corporation Differential time code method and apparatus as for a compressed video signal
GB2306856B (en) 1995-10-31 1999-10-27 Marconi Gec Ltd A terrestrial flight telephone system
US5918041A (en) * 1997-11-26 1999-06-29 International Business Machines Corporation Method and apparatus for automatically adjusting a clock
JP2002507869A (ja) 1998-03-18 2002-03-12 ノキア ネットワークス オサケ ユキチュア セルラーサブシステム間で呼の経路選択を行う方法およびシステム
AUPP362498A0 (en) 1998-05-19 1998-06-11 Curtin University Of Technology Method and apparatus for transfer of real time signals over packet network
US6023769A (en) * 1998-09-17 2000-02-08 Apple Computer, Inc. Method and apparatus for synchronizing an imprecise time clock maintained by a computer system
JP3970474B2 (ja) * 1999-05-31 2007-09-05 沖電気工業株式会社 クロック信号発生回路及びそのクロック周波数調整方法

Also Published As

Publication number Publication date
US6522205B2 (en) 2003-02-18
JP2001308833A (ja) 2001-11-02
FI20000638A0 (fi) 2000-03-17
FI20000638L (fi) 2001-09-18
EP1134921A2 (en) 2001-09-19
US20010022536A1 (en) 2001-09-20
EP1134921A3 (en) 2006-01-11

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