BR9806863A - Circuito de extremidade dianteira de rádio. - Google Patents

Circuito de extremidade dianteira de rádio.

Info

Publication number
BR9806863A
BR9806863A BR9806863-6A BR9806863A BR9806863A BR 9806863 A BR9806863 A BR 9806863A BR 9806863 A BR9806863 A BR 9806863A BR 9806863 A BR9806863 A BR 9806863A
Authority
BR
Brazil
Prior art keywords
end circuit
radio front
mixers
amplifier
cascades
Prior art date
Application number
BR9806863-6A
Other languages
English (en)
Inventor
Sven Mattisson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9806863A publication Critical patent/BR9806863A/pt

Links

Classifications

    • 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
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • 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
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers
    • 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)
  • Amplifiers (AREA)
  • Superheterodyne Receivers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

"CIRCUITO DE EXTREMIDADE DIANTEIRA DE RáDIO". Trata-se de um circuito de extremidade dianteira de rádio compreendendo pelo menos duas cascatas de amplificadores-misturadores (1, 2) que são ligadas ou desligadas através dos misturadores (4, 5). Realizando-se uma comutação entre as cascatas de amplificadores-misturadores, o consumo de energia é reduzido.
BR9806863-6A 1997-01-09 1998-01-07 Circuito de extremidade dianteira de rádio. BR9806863A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700043A SE508415C2 (sv) 1997-01-09 1997-01-09 Högfrekvenskrets för en radiomottagare
PCT/SE1998/000004 WO1998031108A2 (en) 1997-01-09 1998-01-07 A radio front-end circuit

Publications (1)

Publication Number Publication Date
BR9806863A true BR9806863A (pt) 2000-04-18

Family

ID=20405379

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9806863-6A BR9806863A (pt) 1997-01-09 1998-01-07 Circuito de extremidade dianteira de rádio.

Country Status (14)

Country Link
US (2) US6345176B1 (pt)
EP (1) EP1012993B1 (pt)
JP (1) JP3916006B2 (pt)
KR (1) KR100385294B1 (pt)
CN (1) CN1109411C (pt)
AU (1) AU730784B2 (pt)
BR (1) BR9806863A (pt)
DE (1) DE69827148T2 (pt)
EE (1) EE03501B1 (pt)
HK (1) HK1024353A1 (pt)
MY (1) MY119024A (pt)
PL (1) PL186649B1 (pt)
SE (1) SE508415C2 (pt)
WO (1) WO1998031108A2 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508415C2 (sv) * 1997-01-09 1998-10-05 Ericsson Telefon Ab L M Högfrekvenskrets för en radiomottagare
US7039377B2 (en) * 2002-06-14 2006-05-02 Skyworks Solutions, Inc. Switchable gain amplifier
US7027833B1 (en) * 2003-04-03 2006-04-11 The United States Of America As Represented By The Secretary Of The Navy Dual band superheterodyne receiver
NZ543071A (en) * 2003-04-03 2007-05-31 Us Gov Sec Navy Dual band superheterodyne radar receiver
JP2005295348A (ja) * 2004-04-02 2005-10-20 Sharp Corp 受信機
JP2005293785A (ja) * 2004-04-05 2005-10-20 Elpida Memory Inc 半導体記憶装置及びそのセルフリフレッシュ制御方法
US20060205379A1 (en) * 2005-03-08 2006-09-14 Intel Corporation Signal reception enhancement apparatus, systems, and methods
US8060041B2 (en) 2006-02-09 2011-11-15 Qualcomm, Incorporated Adaptive receiver for wireless communication device
TW200849844A (en) * 2007-06-01 2008-12-16 Vivatom Element Co Ltd Communication device with front-end radio frequency antenna module
TWI382676B (zh) * 2007-12-28 2013-01-11 Ind Tech Res Inst 協調性可調式濾波裝置及之無線通訊前端電路
US8571510B2 (en) * 2008-08-18 2013-10-29 Qualcomm Incorporated High linearity low noise receiver with load switching
US8140047B2 (en) 2009-03-11 2012-03-20 Infineon Technologies Ag System including receiver front ends
JP2013106128A (ja) * 2011-11-11 2013-05-30 Taiyo Yuden Co Ltd フロントエンドモジュール
US8787854B2 (en) 2012-07-25 2014-07-22 Qualcomm Incorporated Low power local oscillator signal generation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE242919C (pt)
US4225823A (en) * 1977-02-26 1980-09-30 Nippon Gakki Seizo Kabushiki Kaisha Front end circuits of FM receivers
DD242919A1 (de) * 1985-11-21 1987-02-11 Zentr Wissenschaft & Tech Veb Elektronischer quellenumschalter mit unterschiedlichen eingangsimpedanzen
US5742896A (en) * 1990-11-09 1998-04-21 Bose Corporation Diversity reception with selector switching at superaudible rate
DE4129830A1 (de) * 1991-09-07 1993-03-25 Blaupunkt Werke Gmbh Ukw-empfaenger mit mehreren antennen
JPH0583153A (ja) * 1991-09-19 1993-04-02 Toshiba Corp 広帯域同調回路
JPH08205239A (ja) * 1995-01-25 1996-08-09 Matsushita Electric Ind Co Ltd 無線電話装置
EP0742640B1 (en) * 1995-04-12 2001-07-04 Matsushita Electric Industrial Co., Ltd. A front-end circuit
US5687197A (en) * 1995-07-07 1997-11-11 Motorola, Inc. Method and apparatus for detecting data symbols in a diversity communication system
SE508415C2 (sv) * 1997-01-09 1998-10-05 Ericsson Telefon Ab L M Högfrekvenskrets för en radiomottagare

Also Published As

Publication number Publication date
SE508415C2 (sv) 1998-10-05
SE9700043D0 (sv) 1997-01-09
JP2001511321A (ja) 2001-08-07
EP1012993B1 (en) 2004-10-20
US20020034931A1 (en) 2002-03-21
PL334443A1 (en) 2000-02-28
CN1243618A (zh) 2000-02-02
JP3916006B2 (ja) 2007-05-16
AU5582998A (en) 1998-08-03
DE69827148T2 (de) 2005-10-20
EE9900319A (et) 2000-02-15
US6345176B1 (en) 2002-02-05
KR20000069847A (ko) 2000-11-25
AU730784B2 (en) 2001-03-15
DE69827148D1 (de) 2004-11-25
WO1998031108A3 (en) 1998-09-11
WO1998031108A2 (en) 1998-07-16
EE03501B1 (et) 2001-08-15
SE9700043L (sv) 1998-07-10
EP1012993A2 (en) 2000-06-28
HK1024353A1 (en) 2000-10-05
CN1109411C (zh) 2003-05-21
PL186649B1 (pl) 2004-02-27
MY119024A (en) 2005-03-31
KR100385294B1 (ko) 2003-05-23

Similar Documents

Publication Publication Date Title
BR9806863A (pt) Circuito de extremidade dianteira de rádio.
BR0215405A (pt) Composições e processos de uso de collajolie
TR199801629A2 (xx) Fungisidal 2 -metoksibenzofenonlar.
ES2195970T3 (es) L-ribavirina y usos de la misma.
BR9808491A (pt) Compostos calcilìticos
DE69803907T2 (de) Fungizide 2-Methoxybenzophenone
DE69807760D1 (de) Positiv-arbeitende Photoresistzusammensetzung
TR199902400T2 (xx) Fungusit etkinlik g�steren terkiplerin birle�imleri.
DK1037880T3 (da) Anilider som retinsyremimetika
ID21728A (id) Catu daya berpulsa dari catu daya mode saklar
NO992470D0 (no) 2-amidazolinyl-amino-indolforbindelser anvendelige som <alfa>-2-adreno-reseptoragonister
DE59004637D1 (de) Schaltnetzteil.
BR9813905A (pt) Instalação para influenciar uma instalação de iluminação
SE9704755D0 (sv) An ortho ester-based surfactant, its preparation and use
DE69818261D1 (en) Hydroxycyclopentanone
AU1030699A (en) Interface for a lamp operating device
NO20011664D0 (no) Sammensetning med höy renhet omfattende (7<alfa>, 17<alfa>)- 17-hydroksy-7-metyl-19-nor-17-pregn-5(10)-en-20-yn-3-on
BR9813897A (pt) Derivados de bifenila como farmacêuticos
IT1304401B1 (it) Unita' di controllo di lampade polimerizzatrici.
EP0924198A3 (de) 3-Mercapto-2-alkyl-alkan-1-ole und ihre Anwendung als Duft- und Aromastoffe
ITGE970041A1 (it) Tavolo allungabile.
DE69421493D1 (de) Niederspannungs-, Präzisions-Stromschalter
ES1038039Y (es) "interruptor domestico perfeccionado".
ES2160491A1 (es) Secuencia aminoacida apta para afectar la actividad enzimatica de pectin metilesterasas (pme) y secuencia nucleotica para enzimas que afectan petin metilesterasas comprendiendo dicha secuencia aminoacida.
ATE323105T1 (de) Von lipocortin-1 abgeleitete entzündungshemmende wirkstoffe

Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements