MX9307986A - Sistema de control de frecuencia. - Google Patents

Sistema de control de frecuencia.

Info

Publication number
MX9307986A
MX9307986A MX9307986A MX9307986A MX9307986A MX 9307986 A MX9307986 A MX 9307986A MX 9307986 A MX9307986 A MX 9307986A MX 9307986 A MX9307986 A MX 9307986A MX 9307986 A MX9307986 A MX 9307986A
Authority
MX
Mexico
Prior art keywords
frequency control
control system
receiver
transmitted
communication
Prior art date
Application number
MX9307986A
Other languages
English (en)
Inventor
Louis J Vannatta
Timothy P Froehling
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of MX9307986A publication Critical patent/MX9307986A/es

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0241—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where no transmission is received, e.g. out of range of the transmitter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Selective Calling Equipment (AREA)

Abstract

La presente invención se ralaciona generalmente con sistemas de control de frecuencia y en particular, con un sistema de control de frecuencia que opera en un receptor que recibe la señales que se transmiten en estallidos intermitentes.Un sistema de comunicación está compuesto, por lo menos, de un transmisor y un receptor interconectados por medio de un canal de comunicación. Una señal de comunicación es transmitida por el transmisor por medio del canal de transmisión para ser recibida en el receptor.
MX9307986A 1992-12-22 1993-12-15 Sistema de control de frecuencia. MX9307986A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/997,267 US5280644A (en) 1992-12-22 1992-12-22 Frequency control circuit, and associated method, for a receiver operative to receive signals-transmitted thereto in intermittent bursts

Publications (1)

Publication Number Publication Date
MX9307986A true MX9307986A (es) 1994-08-31

Family

ID=25543813

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9307986A MX9307986A (es) 1992-12-22 1993-12-15 Sistema de control de frecuencia.

Country Status (7)

Country Link
US (1) US5280644A (es)
JP (1) JPH07504308A (es)
BR (1) BR9305938A (es)
CA (1) CA2127366C (es)
GB (1) GB2279520B (es)
MX (1) MX9307986A (es)
WO (1) WO1994015409A1 (es)

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JPH07245633A (ja) * 1994-03-04 1995-09-19 Toshiba Corp デジタルデータ受信装置
DE69536114D1 (de) * 1994-07-21 2010-11-18 Interdigital Tech Corp Verfahren zur Stromverbrauchsregelung für ein TDMA-Funkgerät
US6243399B1 (en) 1994-07-21 2001-06-05 Interdigital Technology Corporation Ring signal generator
US6775531B1 (en) 1994-07-21 2004-08-10 Interdigital Technology Corporation Subscriber terminal temperature regulation
US5842037A (en) * 1995-03-20 1998-11-24 Telefonaktiebolaget Lm Ericsson Interference reduction in TDM-communication/computing devices
AU711406B2 (en) * 1995-03-20 1999-10-14 Telefonaktiebolaget Lm Ericsson (Publ) Interference reduction in tdm-communication/computing devices
WO1997008857A1 (en) * 1995-08-24 1997-03-06 British Telecommunications Public Limited Company Burst mode optical digital receiver and repeater
US5794119A (en) * 1995-11-21 1998-08-11 Stanford Telecommunications, Inc. Subscriber frequency control system and method in point-to-multipoint RF communication system
JPH09294088A (ja) * 1996-04-26 1997-11-11 Toshiba Corp チューナ回路
US5742641A (en) * 1996-07-18 1998-04-21 International Business Machines Corporation Apparatus, method and article of manufacture for the dynamic compensation of FM deviation in a FM radio receiver
US6041088A (en) * 1996-10-23 2000-03-21 Sicom, Inc. Rapid synchronization for communication systems
US5844939A (en) * 1997-02-14 1998-12-01 Hewlett-Packard Company Low-cost phaselocked local oscillator for millimeter wave transceivers
DE19748913B4 (de) * 1997-02-14 2004-09-30 Hewlett-Packard Co. (N.D.Ges.D.Staates Delaware), Palo Alto Sende-Empfangs-Vorrichtung für ein drahtloses Informationszugriffsystem
JP3272273B2 (ja) * 1997-07-07 2002-04-08 松下電器産業株式会社 間欠受信装置
US6163710A (en) * 1997-10-20 2000-12-19 Ericsson, Inc. Method and apparatus for compliance to multiple frequency plans
US6560298B1 (en) 1999-05-25 2003-05-06 Motorola, Inc. Method and apparatus for concurrent synchronization and improved automatic frequency control in a communication device
GB2360152A (en) * 2000-03-10 2001-09-12 Rover Group Control circuit arrangements
EP1215822A1 (en) * 2000-12-18 2002-06-19 Nokia Corporation Radio transmission device and method for aligning parameters thereof
US7324496B1 (en) 2002-05-01 2008-01-29 Nxp B.V. Highly integrated radio-frequency apparatus and associated methods
US8478921B2 (en) * 2004-03-31 2013-07-02 Silicon Laboratories, Inc. Communication apparatus implementing time domain isolation with restricted bus access
GB0407587D0 (en) * 2004-04-02 2004-05-05 Univ Nottingham Trent Cancer associated antigens
US8884791B2 (en) * 2004-06-29 2014-11-11 St-Ericsson Sa Keypad scanning with radio event isolation
US7248848B2 (en) * 2004-06-30 2007-07-24 Matthews Phillip M Communication apparatus including dual timer units
US7761056B2 (en) * 2004-07-23 2010-07-20 St-Ericsson Sa Method of controlling a processor for radio isolation using a timer
US8472990B2 (en) * 2004-07-23 2013-06-25 St Ericsson Sa Apparatus using interrupts for controlling a processor for radio isolation and associated method
US7433393B2 (en) 2004-07-23 2008-10-07 Nxp B.V. Apparatus for controlling a digital signal processor for radio isolation and associated methods
US20050008095A1 (en) * 2004-07-23 2005-01-13 Rush Frederick A. Apparatus using interrupts for controlling a processor for radio isolation and associated methods
US7567637B2 (en) 2004-09-30 2009-07-28 St-Ericsson Sa Wireless communication system and method with frequency burst acquisition feature using autocorrelation and narrowband interference detection
US7593482B2 (en) 2004-09-30 2009-09-22 St-Ericsson Sa Wireless communication system with hardware-based frequency burst detection
US7778674B2 (en) * 2004-12-29 2010-08-17 St-Ericsson Sa Communication apparatus having a SIM interface compatible with radio isolation
US8019382B2 (en) * 2004-12-29 2011-09-13 St-Ericsson Sa Communication apparatus having a standard serial communication interface compatible with radio isolation
US7805170B2 (en) * 2005-03-30 2010-09-28 St-Ericsson Sa System and method for efficient power supply regulation compatible with radio frequency operation
US7209061B2 (en) * 2005-03-30 2007-04-24 Silicon Laboratories, Inc. Method and system for sampling a signal
US7283503B1 (en) 2005-06-24 2007-10-16 Silicon Laboratories, Inc. Communication apparatus including a buffer circuit having first and second portions for alternately storing results
US7801207B2 (en) * 2005-06-24 2010-09-21 St-Ericsson Sa Signal processing task scheduling in a communication apparatus
US7414560B2 (en) * 2005-06-29 2008-08-19 Shaojie Chen Wireless communication system including an audio underflow protection mechanism operative with time domain isolation
FR2895200B1 (fr) * 2005-12-20 2008-02-22 Silicon Lab Inc Procede d'acquisition d'un burst de correction de frequence par un dispositif de radiocommunication, et dispositif de radiocommunication correspondant.
TWI343713B (en) * 2006-11-24 2011-06-11 Realtek Semiconductor Corp Signal processing circuit
US20090042546A1 (en) * 2007-08-09 2009-02-12 Mcclendon Doyle Emergency warning system
EP2592759B1 (en) * 2011-11-08 2016-09-14 ST-Ericsson SA Method for tuning an oscillator frequency and device implementing the method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4651104A (en) * 1982-07-07 1987-03-17 Fujitsu Limited Frequency converter with automatic frequency control
US4601061A (en) * 1984-07-02 1986-07-15 Motorola Inc. Automatic frequency control circuit having an equalized closed loop frequency response
US4817197A (en) * 1986-07-18 1989-03-28 Nippon Telegraph And Telephone Corporation Mobile communication apparatus
US4703520A (en) * 1986-10-31 1987-10-27 Motorola, Inc. Radio transceiver having an adaptive reference oscillator
JPH07105756B2 (ja) * 1988-06-29 1995-11-13 松下電器産業株式会社 移動通信方法
US5170492A (en) * 1990-01-22 1992-12-08 Motorola, Inc. Digitally frequency-locking a radio transceiver to the received signal
KR970007361B1 (ko) * 1990-12-31 1997-05-07 모토로라 인코포레이티드 주파수 제어 시스템

Also Published As

Publication number Publication date
GB9413970D0 (en) 1994-08-31
CA2127366A1 (en) 1994-07-07
WO1994015409A1 (en) 1994-07-07
GB2279520A (en) 1995-01-04
CA2127366C (en) 1999-08-10
BR9305938A (pt) 1997-08-26
US5280644A (en) 1994-01-18
GB2279520B (en) 1997-03-26
JPH07504308A (ja) 1995-05-11

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees