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CO2020001202A2 - Sistema de control de frecuencia de reloj - Google Patents
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CO2020001202A2 - Sistema de control de frecuencia de reloj - Google Patents

Sistema de control de frecuencia de reloj

Info

Publication number
CO2020001202A2
CO2020001202A2 CONC2020/0001202A CO2020001202A CO2020001202A2 CO 2020001202 A2 CO2020001202 A2 CO 2020001202A2 CO 2020001202 A CO2020001202 A CO 2020001202A CO 2020001202 A2 CO2020001202 A2 CO 2020001202A2
Authority
CO
Colombia
Prior art keywords
frequency
range
clock signal
internal clock
control system
Prior art date
Application number
CONC2020/0001202A
Other languages
English (en)
Inventor
Andrew L Martin
David W Palmer
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Publication of CO2020001202A2 publication Critical patent/CO2020001202A2/es

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00Automatic control of frequency or phase; Synchronisation
    • H03L7/06Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04Generating or distributing clock signals or signals derived directly therefrom
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • H04J3/07Synchronising arrangements using pulse stuffing for systems with different or fluctuating information rates or bit rates
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2657Carrier synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2668Details of algorithms
    • H04L27/2673Details of algorithms characterised by synchronisation parameters
    • H04L27/2675Pilot or known symbols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00Arrangements for synchronising receiver with transmitter
    • H04L7/04Speed or phase control by synchronisation signals
    • H04L7/06Speed or phase control by synchronisation signals the synchronisation signals differing from the information signals in amplitude, polarity or frequency or length

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

La frecuencia de una señal de reloj se compara con un rango predeterminado. Si la frecuencia medida está fuera del rango, un controlador del sistema determina si un estado operativo actual del sistema general permite que el reloj interno se vuelva a ajustar en conformidad. Si el controlador determina que el estado actual del sistema permite el cambio, entonces una señal de control a la fuente de señal de reloj interno se cambia por el incremento más pequeño disponible, ya sea para aumentar o disminuir la frecuencia. Si la señal del reloj interno está fuera del rango deseado y el controlador del sistema no decide modificar la frecuencia, el controlador puede aumentar el tamaño del rango disminuyendo el límite inferior y/o aumentando el límite superior.
CONC2020/0001202A 2017-07-12 2020-02-03 Sistema de control de frecuencia de reloj CO2020001202A2 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/647,993 US10305492B2 (en) 2017-07-12 2017-07-12 Clock frequency control system
PCT/US2018/017054 WO2019013840A1 (en) 2017-07-12 2018-02-06 CLOCK FREQUENCY CONTROL SYSTEM

Publications (1)

Publication Number Publication Date
CO2020001202A2 true CO2020001202A2 (es) 2020-02-18

Family

ID=61249725

Family Applications (1)

Application Number Title Priority Date Filing Date
CONC2020/0001202A CO2020001202A2 (es) 2017-07-12 2020-02-03 Sistema de control de frecuencia de reloj

Country Status (9)

Country Link
US (1) US10305492B2 (es)
EP (1) EP3652607B1 (es)
JP (1) JP6778352B2 (es)
KR (1) KR102192406B1 (es)
AU (1) AU2018301224B2 (es)
BR (1) BR112019023748B1 (es)
CA (1) CA3064203C (es)
CO (1) CO2020001202A2 (es)
WO (1) WO2019013840A1 (es)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3956768B2 (ja) * 2002-05-14 2007-08-08 ソニー株式会社 クロック発生回路
KR100682279B1 (ko) 2005-07-14 2007-02-15 (주)에프씨아이 주파수 합성기의 적응 주파수 조정장치
US7764126B2 (en) 2007-06-25 2010-07-27 Sanyo Electric Co., Ltd. Clock generation circuit and clock generation control circuit
JP5111057B2 (ja) * 2007-10-31 2012-12-26 ルネサスエレクトロニクス株式会社 制御装置
US8073092B2 (en) * 2008-06-19 2011-12-06 Microchip Technology Incorporated Automatic synchronization of an internal oscillator to an external frequency reference
US8446223B2 (en) 2009-05-22 2013-05-21 CSR Technology, Inc. Systems and methods for calibrating real time clock
CN102195646A (zh) 2010-03-18 2011-09-21 上海华虹Nec电子有限公司 时钟振荡器自动校准方法及电路
US8564374B2 (en) * 2011-10-03 2013-10-22 Himax Technologies Limited Oscillator calibration apparatus and oscillator calibration method
CN102436174A (zh) 2011-10-26 2012-05-02 东莞市泰斗微电子科技有限公司 一种守时设备晶振频率驯服方法及相应装置
JP2013196619A (ja) * 2012-03-22 2013-09-30 Fujitsu Ltd 半導体装置及び半導体装置の制御方法
US9563226B2 (en) 2013-09-13 2017-02-07 Marvell World Trade Ltd. Dynamic clock regulation based on duty cycle thresholds

Also Published As

Publication number Publication date
JP6778352B2 (ja) 2020-10-28
KR20200005590A (ko) 2020-01-15
KR102192406B1 (ko) 2020-12-17
JP2020526985A (ja) 2020-08-31
US10305492B2 (en) 2019-05-28
BR112019023748B1 (pt) 2020-10-27
BR112019023748A2 (pt) 2020-05-26
CA3064203A1 (en) 2019-01-17
EP3652607B1 (en) 2021-04-21
US20190020347A1 (en) 2019-01-17
AU2018301224B2 (en) 2019-12-12
CA3064203C (en) 2020-11-17
AU2018301224A1 (en) 2019-11-07
WO2019013840A1 (en) 2019-01-17
EP3652607A1 (en) 2020-05-20

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