BR9915036A - Sintonização de frequência para transceptoresde rádio - Google Patents

Sintonização de frequência para transceptoresde rádio

Info

Publication number
BR9915036A
BR9915036A BR9915036-0A BR9915036A BR9915036A BR 9915036 A BR9915036 A BR 9915036A BR 9915036 A BR9915036 A BR 9915036A BR 9915036 A BR9915036 A BR 9915036A
Authority
BR
Brazil
Prior art keywords
frequency
error
clock frequency
signal
fine
Prior art date
Application number
BR9915036-0A
Other languages
English (en)
Inventor
Elen Shaul Barak
Original Assignee
Dspc Tech Ltd
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 Dspc Tech Ltd filed Critical Dspc Tech Ltd
Publication of BR9915036A publication Critical patent/BR9915036A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • 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
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/026—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using a memory for digitally storing correction values

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Transceivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Transmitters (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

"SINTONIZAçãO DE FREQuêNCIA PARA TRANSCEPTORESDE RáDIO". Um dispositivo de comunicação por rádio, quetransmite ou recebe um sinal em uma freq³ência portadorapredeterminada. O dispositivo inclui um oscilador de referência (24),que gera uma freq³ência de relógio tendo um erro de freq³ênciade relógio relativo a uma freq³ência especificada do mesmo, umprocessador (22), que calcula o erro de freq³ência de relógio eanalisa o erro para determinar componentes de correção de errogrosseiro e fino, pelo menos um sintetizador de freq³ência (54, 56,58), que é responsivo à freq³ência de relógio e ao componente decorreção de erro grosseiro, gera uma freq³ência parcialmentecorrigida tendo um erro de freq³ência residual, cuja freq³ênciaparcialmente corrigida é aplicada para processar o sinal e conjuntode circuitos de processamento de faixa de base (27), que aplica ocomponente de correção de erro fino para processar o sinal demodo a corrigir o erro de freq³ência residual.
BR9915036-0A 1998-11-06 1999-11-02 Sintonização de frequência para transceptoresde rádio BR9915036A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/187,840 US6400930B1 (en) 1998-11-06 1998-11-06 Frequency tuning for radio transceivers
PCT/IL1999/000582 WO2000028665A1 (en) 1998-11-06 1999-11-02 Frequency tuning for radio transceivers

Publications (1)

Publication Number Publication Date
BR9915036A true BR9915036A (pt) 2001-10-30

Family

ID=22690695

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9915036-0A BR9915036A (pt) 1998-11-06 1999-11-02 Sintonização de frequência para transceptoresde rádio

Country Status (7)

Country Link
US (2) US6400930B1 (pt)
CN (1) CN1342341A (pt)
AU (1) AU6487099A (pt)
BR (1) BR9915036A (pt)
ES (1) ES2187305A1 (pt)
SE (1) SE524983C2 (pt)
WO (1) WO2000028665A1 (pt)

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US6400930B1 (en) * 1998-11-06 2002-06-04 Dspc Israel, Ltd. Frequency tuning for radio transceivers
US7383018B2 (en) 2002-02-26 2008-06-03 Thomas Licensing Satellite television system ground station having wideband multi-channel LNB converter/transmitter architecture with coarse tuner in outdoor unit
US8418210B2 (en) 2002-02-26 2013-04-09 Thomson Licensing Satellite television system ground station having wideband multi-channel LNB converter/transmitter architecture with controlled uplink transmission
US7401349B2 (en) 2002-02-26 2008-07-15 Thomson Licensing Satellite television system ground station having wideband multi-channel LNB converter/transmitter architecture utilizing a frequency stabilized common oscillator
US7215214B1 (en) * 2003-09-26 2007-05-08 Cypress Semiconductor Corp. Resonator and amplifying oscillator circuit having a high resolution skew-compensated frequency synthesizer integrated on a single substrate
US7324789B2 (en) * 2005-01-20 2008-01-29 Broadcom Corporation PLL frequency synthesizer architecture for low phase noise and reference spurs
DE102005004105B4 (de) * 2005-01-28 2013-05-08 Intel Mobile Communications GmbH Signalverarbeitungseinrichtung und Verfahren zum Betreiben einer Signalverarbeitungseinrichtung
US8014476B2 (en) * 2005-11-07 2011-09-06 Qualcomm, Incorporated Wireless device with a non-compensated crystal oscillator
GB2432467B (en) * 2005-11-22 2008-03-19 Motorola Inc RF transceiver and a method of operation therein
WO2007073099A1 (en) * 2005-12-22 2007-06-28 Lg Innotek Co., Ltd Rfid system
US7742785B2 (en) * 2006-08-09 2010-06-22 Qualcomm Incorporated Reference signal generation for multiple communication systems
FR2905537B1 (fr) * 2006-08-30 2012-11-16 Thales Sa Procede et dispositif permettant de compenser la derive due a la variation d'un parametre dans un filtre
KR101315858B1 (ko) * 2007-01-29 2013-10-08 엘지이노텍 주식회사 위성방송수신기의 주파수 드래프트 보상 장치
JP4573062B2 (ja) * 2007-02-14 2010-11-04 日本電気株式会社 位相雑音補正装置及びその方法
US20100098204A1 (en) * 2008-08-01 2010-04-22 Nivis, Llc Systems and Methods for Regulating Clock Precision in Distributed Devices
US8140038B2 (en) * 2009-10-14 2012-03-20 Issc Technologies Corp. Adaptive receivers
US8411799B1 (en) * 2009-11-13 2013-04-02 Maxim Integrated Products, Inc. Receiver with intermediate frequency error correction
CN103634002A (zh) * 2013-12-23 2014-03-12 北京无线电计量测试研究所 一种宽带vco线性度的实时校准系统和校准方法
FR3049413B1 (fr) * 2016-03-22 2022-11-18 Sigfox Procede de correction d'une erreur sur la generation de frequence par un terminal d'un systeme de communication sans fil
US10749368B2 (en) * 2017-06-01 2020-08-18 Logitech Europe S.A. Computer mouse clock tuning to reduce electromagnetic induced noise in a wireless charging system

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CH616297B (de) 1974-09-16 Centre Electron Horloger Garde-temps compense en fonction d'au moins un parametre physique d'environnement.
US4093873A (en) 1976-10-28 1978-06-06 Intel Corporation Compensating digital counter for quartz crystal oscillator
US4454483A (en) 1982-03-25 1984-06-12 Cubic Corporation Temperature compensation of an oscillator by fractional cycle synthesis
GB2120478B (en) * 1982-04-22 1985-10-16 Standard Telephones Cables Ltd Voltage controlled oscillator
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US4940950A (en) * 1988-08-12 1990-07-10 Tel-Instrument Electronics Corporation Frequency synthesis method and apparatus using approximation to provide closely spaced discrete frequencies over a wide range with rapid acquisition
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US5319680A (en) * 1991-09-03 1994-06-07 The Whitaker Corporation Phase locked loop synchronization system for use in data communications
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Also Published As

Publication number Publication date
WO2000028665A1 (en) 2000-05-18
AU6487099A (en) 2000-05-29
SE0101551L (sv) 2001-07-06
CN1342341A (zh) 2002-03-27
SE0101551D0 (sv) 2001-05-04
SE524983C2 (sv) 2004-11-02
US20020127984A1 (en) 2002-09-12
US6400930B1 (en) 2002-06-04
US7113751B2 (en) 2006-09-26
ES2187305A1 (es) 2003-05-16

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]