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BR9405441A - Receptor de rádio para receber sinal de radiofrequência. - Google Patents

Receptor de rádio para receber sinal de radiofrequência.

Info

Publication number
BR9405441A
BR9405441A BR9405441-0A BR9405441A BR9405441A BR 9405441 A BR9405441 A BR 9405441A BR 9405441 A BR9405441 A BR 9405441A BR 9405441 A BR9405441 A BR 9405441A
Authority
BR
Brazil
Prior art keywords
frequency signal
receiving
radio receiver
receiving circuitry
microcomputer
Prior art date
Application number
BR9405441-0A
Other languages
English (en)
Inventor
Walter Lee Davis
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 BR9405441A publication Critical patent/BR9405441A/pt

Links

Classifications

    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Logic Circuits (AREA)
  • Noise Elimination (AREA)
  • Selective Calling Equipment (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transceivers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Superheterodyne Receivers (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Um receptor de rádio (40) para receber um sinal de RF compreende conjunto de circuitos de recepção (42) para receber o desmodular o sinal de RF e um microcomputador (44) acoplado ao conjunto de circuitos de recepção (42) para ativar e desativar o conjunto de circuitos de recepção (42) em tempos predeterminados. O receptos de rádio (40) compreende ainda um chip de expansão (68) acoplado a e controlado pelo microcomputador (44) para comunicação com o mesmo para processar adicionalmente o sinal de RF. A comunicação entre o microcomputador (44) e o chip e expansão (68) ocorre em uma primeira velocidade quando o conjunto de circuitos de recepção (42) é ativado e em uma segunda velocidade mais rápida do que a primeira velocidade quando o conjunto de circuitos de recepção (42) é desativado.
BR9405441-0A 1993-07-01 1994-05-31 Receptor de rádio para receber sinal de radiofrequência. BR9405441A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/083,584 US5471663A (en) 1993-07-01 1993-07-01 Expanded microcomputer system for controlling radio frequency interference
PCT/US1994/005945 WO1995001675A1 (en) 1993-07-01 1994-05-31 Expanded microcomputer system for controlling radio frequency interference

Publications (1)

Publication Number Publication Date
BR9405441A true BR9405441A (pt) 1999-09-08

Family

ID=22179293

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9405441-0A BR9405441A (pt) 1993-07-01 1994-05-31 Receptor de rádio para receber sinal de radiofrequência.

Country Status (18)

Country Link
US (1) US5471663A (pt)
EP (1) EP0667062B1 (pt)
JP (1) JPH08500951A (pt)
KR (2) KR0142113B1 (pt)
AT (1) ATE206570T1 (pt)
AU (1) AU668835B2 (pt)
BR (1) BR9405441A (pt)
CA (1) CA2142880A1 (pt)
CZ (1) CZ284354B6 (pt)
DE (1) DE69428514T2 (pt)
ES (1) ES2165394T3 (pt)
FI (1) FI950933A0 (pt)
NZ (1) NZ269000A (pt)
PL (1) PL173961B1 (pt)
RU (1) RU2123236C1 (pt)
TW (1) TW242722B (pt)
UA (1) UA35597C2 (pt)
WO (1) WO1995001675A1 (pt)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5630224A (en) * 1994-12-29 1997-05-13 Motorola, Inc. Method and apparatus for avoiding desensitization of a radio frequency receiver
US5765113A (en) * 1994-12-29 1998-06-09 Russo; David William Method and apparatus for avoiding desensitization of a radio frequency receiver
US5842037A (en) * 1995-03-20 1998-11-24 Telefonaktiebolaget Lm Ericsson Interference reduction in TDM-communication/computing devices
US5729158A (en) * 1995-07-07 1998-03-17 Sun Microsystems, Inc. Parametric tuning of an integrated circuit after fabrication
JP3570846B2 (ja) * 1997-03-27 2004-09-29 Ｎｅｃアクセステクニカ株式会社 無線携帯情報端末
US6549560B1 (en) 1997-06-03 2003-04-15 The United States Of America As Represented By The Secretary Of The Navy Comb limiter combiner for frequency-hopped communications
US6169889B1 (en) 1997-08-04 2001-01-02 Motorola Method and electronic device using random pulse characteristics in digital signals
US6043762A (en) * 1998-05-05 2000-03-28 Fairchild Semiconductor Corp. Hardware bit coder
JP3149866B2 (ja) * 1998-12-10 2001-03-26 日本電気株式会社 無線携帯端末
JP4177525B2 (ja) * 1999-07-23 2008-11-05 京セラ株式会社 携帯電話機
TW519792B (en) * 2000-08-30 2003-02-01 Cirrus Logic Inc Circuits and methods for reducing interference from switched mode circuits
US7324496B1 (en) 2002-05-01 2008-01-29 Nxp B.V. Highly integrated radio-frequency apparatus and associated methods
JP2004193951A (ja) 2002-12-11 2004-07-08 Nec Saitama Ltd 携帯電話装置および携帯電話装置における受信感度劣化防止方法並びにプログラム
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
US20050008095A1 (en) * 2004-07-23 2005-01-13 Rush Frederick A. Apparatus using interrupts for controlling a processor for radio isolation and associated methods
US7433393B2 (en) 2004-07-23 2008-10-07 Nxp B.V. Apparatus for controlling a digital signal processor for radio isolation and associated methods
US8472990B2 (en) * 2004-07-23 2013-06-25 St Ericsson Sa Apparatus using interrupts for controlling a processor for radio isolation and associated method
US7761056B2 (en) * 2004-07-23 2010-07-20 St-Ericsson Sa Method of controlling a processor for radio isolation using a timer
US7593482B2 (en) * 2004-09-30 2009-09-22 St-Ericsson Sa Wireless communication system with hardware-based frequency burst detection
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
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
JP4227961B2 (ja) * 2005-01-11 2009-02-18 埼玉日本電気株式会社 携帯電話装置
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
JP2006294751A (ja) * 2005-04-07 2006-10-26 Toshiba Corp 半導体集積回路及びその製造方法
US7801207B2 (en) * 2005-06-24 2010-09-21 St-Ericsson Sa Signal processing task scheduling in a communication apparatus
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
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.
DE102007023927B3 (de) 2007-05-23 2009-01-08 Vega Grieshaber Kg Massekopplung an getakteten HF-Bauelementen
RU2465645C1 (ru) * 2011-11-01 2012-10-27 Открытое акционерное общество "АНГСТРЕМ" Интегральная микросхема радиочастотного идентификатора
US10668209B2 (en) 2017-01-31 2020-06-02 The Alfred E. Mann Found. For Scientific Research Ambulatory infusion devices and filter assemblies for use with same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801831A (en) * 1972-10-13 1974-04-02 Motorola Inc Voltage level shifting circuit
US4612466A (en) * 1984-08-31 1986-09-16 Rca Corporation High-speed output driver
US4606076A (en) * 1985-01-07 1986-08-12 Motorola, Inc. Communication receiver system having a voltage converter with an operating frequency below the receiver IF
US4879758A (en) * 1987-01-02 1989-11-07 Motorola, Inc. Communication receiver system having a decoder operating at variable frequencies
JPH0744477B2 (ja) * 1988-07-15 1995-05-15 日本電気株式会社 小型デジタル無線受信機
US5086501A (en) * 1989-04-17 1992-02-04 Motorola, Inc. Computing system with selective operating voltage and bus speed
FR2659812B1 (fr) * 1990-03-16 1994-03-25 Matra Communication Dispositif de radio communication a multiplexage dans le temps.
CH680343A5 (pt) * 1990-06-28 1992-08-14 Erika Koechler
JP2712868B2 (ja) 1991-03-30 1998-02-16 日本電気株式会社 選択呼出受信機
GB9109301D0 (en) * 1991-04-30 1991-06-19 Motorola Israel Ltd Electronic equipment
US5128890A (en) * 1991-05-06 1992-07-07 Motorola, Inc. Apparatus for performing multiplications with reduced power and a method therefor
MY118023A (en) * 1991-10-25 2004-08-30 Texas Instruments Inc High speed, low power high common mode range voltage mode differential driver circuit
US5280587A (en) * 1992-03-31 1994-01-18 Vlsi Technology, Inc. Computer system in which a bus controller varies data transfer rate over a bus based on a value of a subset of address bits and on a stored value
US5311514A (en) * 1993-04-01 1994-05-10 Ford Motor Company Driver for bus circuit of motor vehicle multiplex communications system

Also Published As

Publication number Publication date
JPH08500951A (ja) 1996-01-30
KR0142113B1 (ko) 1998-07-01
ES2165394T3 (es) 2002-03-16
EP0667062A1 (en) 1995-08-16
FI950933A (fi) 1995-03-01
CA2142880A1 (en) 1995-01-12
US5471663A (en) 1995-11-28
RU2123236C1 (ru) 1998-12-10
PL307563A1 (en) 1995-05-29
KR950703229A (ko) 1995-08-23
EP0667062A4 (en) 1999-06-23
AU668835B2 (en) 1996-05-16
EP0667062B1 (en) 2001-10-04
CZ284354B6 (cs) 1998-11-11
DE69428514T2 (de) 2002-05-08
PL173961B1 (pl) 1998-05-29
TW242722B (pt) 1995-03-11
FI950933A0 (fi) 1995-03-01
AU7243394A (en) 1995-01-24
ATE206570T1 (de) 2001-10-15
NZ269000A (en) 1997-12-19
UA35597C2 (uk) 2001-04-16
DE69428514D1 (de) 2001-11-08
CZ53195A3 (en) 1995-10-18
WO1995001675A1 (en) 1995-01-12

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FA11 Dismissal: dismissal - article 38, par. 2 of industrial property law