BR9401376A - Circuitos de detecção acoplados a sinal de radiofrequência, transmissor de sinal RF de radiofrequência, circuitos de detecção e raiotransceptor - Google Patents

Circuitos de detecção acoplados a sinal de radiofrequência, transmissor de sinal RF de radiofrequência, circuitos de detecção e raiotransceptor

Info

Publication number
BR9401376A
BR9401376A BR9401376A BR9401376A BR9401376A BR 9401376 A BR9401376 A BR 9401376A BR 9401376 A BR9401376 A BR 9401376A BR 9401376 A BR9401376 A BR 9401376A BR 9401376 A BR9401376 A BR 9401376A
Authority
BR
Brazil
Prior art keywords
radio
detection circuits
transmitter
signal
frequency signal
Prior art date
Application number
BR9401376A
Other languages
English (en)
Inventor
Alexander W Hietala
Troy L Stockstad
Robert L Vyne
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 BR9401376A publication Critical patent/BR9401376A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/02—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/08—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements
    • H03D1/10—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements of diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
    • H03D1/18—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Superheterodyne Receivers (AREA)
  • Transceivers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
BR9401376A 1993-04-05 1994-04-04 Circuitos de detecção acoplados a sinal de radiofrequência, transmissor de sinal RF de radiofrequência, circuitos de detecção e raiotransceptor BR9401376A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/042,956 US5448770A (en) 1993-04-05 1993-04-05 Temperature-coefficient controlled radio frequency signal detecting circuitry

Publications (1)

Publication Number Publication Date
BR9401376A true BR9401376A (pt) 1994-10-25

Family

ID=21924656

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9401376A BR9401376A (pt) 1993-04-05 1994-04-04 Circuitos de detecção acoplados a sinal de radiofrequência, transmissor de sinal RF de radiofrequência, circuitos de detecção e raiotransceptor

Country Status (10)

Country Link
US (1) US5448770A (pt)
JP (1) JPH0730460A (pt)
CN (1) CN1044657C (pt)
AU (1) AU667261B2 (pt)
BR (1) BR9401376A (pt)
CA (1) CA2120095C (pt)
DE (1) DE4411733C2 (pt)
FR (1) FR2703860B1 (pt)
GB (1) GB2276992B (pt)
SE (1) SE516787C2 (pt)

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US5452473A (en) * 1994-02-28 1995-09-19 Qualcomm Incorporated Reverse link, transmit power correction and limitation in a radiotelephone system
GB9423158D0 (en) 1994-11-17 1995-01-04 At & T Global Inf Solution Radio frequency detector circuit
JP3479405B2 (ja) * 1996-03-29 2003-12-15 アルプス電気株式会社 送信機の増幅回路
US6130602A (en) 1996-05-13 2000-10-10 Micron Technology, Inc. Radio frequency data communications device
US6941124B1 (en) 1996-05-13 2005-09-06 Micron Technology, Inc. Method of speeding power-up of an amplifier, and amplifier
US5893028A (en) * 1997-01-08 1999-04-06 Advanced Micro Devices, Inc. Intermediate frequency gain stage with rectifier
US6064268A (en) * 1999-01-28 2000-05-16 Hewlett--Packard Company Precision emitter follower
US6262630B1 (en) 1999-06-04 2001-07-17 Telefonaktiebolaget Lm Ericsson (Publ) Rapidly-responding diode detector with temperature compensation
US6259752B1 (en) * 2000-02-01 2001-07-10 Conexant Systems, Inc. System for cancelling internal interference in a receiver
US6476677B1 (en) * 2000-08-30 2002-11-05 Skyworks Solutions, Inc. Power amplifier saturation detection and compensation
US6542029B1 (en) * 2000-10-11 2003-04-01 Skyworks Solutions, Inc. Variable-slope variable-gain amplifier
DE60142427D1 (de) * 2001-03-09 2010-08-05 Semiconductor Components Ind Treiber für Leistungsverstärker und Betriebsverfahren
US7376234B1 (en) * 2001-05-14 2008-05-20 Hand Held Products, Inc. Portable keying device and method
EP1317064A1 (en) * 2001-11-28 2003-06-04 TTPCOM Limited Transmitter RF power control
US6744313B2 (en) 2002-05-02 2004-06-01 Semiconductor Components Industries, L.L.C. Power amplifier driver and method of using
DE10222307A1 (de) * 2002-05-18 2003-12-04 Atmel Germany Gmbh Verfahren zur Erzeugung eines Ausgangsstromes mit einem vorgegebenen Temperaturkoeffizienten
DE10260749B4 (de) * 2002-12-23 2012-03-22 Atmel Automotive Gmbh Hochfrequenz-Leistungsdetektor mit dBm-linearer Kennlinie und dessen Verwendung zur Regelung der Leistung einer elektrischen HF-Schwingung
US7171171B1 (en) 2003-08-15 2007-01-30 Rf Micro Devices, Inc. GaAs RF signal detection circuit with operational amplifier
US7512386B2 (en) * 2003-08-29 2009-03-31 Nokia Corporation Method and apparatus providing integrated load matching using adaptive power amplifier compensation
US7369816B2 (en) * 2004-08-06 2008-05-06 Broadcom Corporation Highly accurate temperature sensor employing mixed-signal components
US7693491B2 (en) * 2004-11-30 2010-04-06 Broadcom Corporation Method and system for transmitter output power compensation
EP1727016A1 (en) * 2005-05-24 2006-11-29 Emma Mixed Signal C.V. Reference voltage generator
US7558539B2 (en) * 2005-09-30 2009-07-07 Freescale Semiconductor, Inc. Power control feedback loop for adjusting a magnitude of an output signal
US20070080740A1 (en) * 2005-10-06 2007-04-12 Berens Michael T Reference circuit for providing a temperature independent reference voltage and current
US7514987B2 (en) 2005-11-16 2009-04-07 Mediatek Inc. Bandgap reference circuits
JP5966731B2 (ja) 2012-07-30 2016-08-10 富士通株式会社 電子機器
CN106646013A (zh) * 2016-09-19 2017-05-10 宇龙计算机通信科技(深圳)有限公司 射频发射通路的故障检测装置、方法及移动终端
CN109343420B (zh) * 2018-11-14 2020-10-27 刘盛荣 基于电性曲线的电动沙发的防夹装置
CN110011622B (zh) * 2019-04-15 2023-02-07 厦门雷迅科微电子股份有限公司 一种射频功率放大器的偏置电路
CN111538365B (zh) * 2020-04-30 2022-03-18 深圳芯能半导体技术有限公司 高压集成电路及其温度检测电路

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US4000472A (en) * 1975-12-30 1976-12-28 Westinghouse Electric Corporation Amplitude modulation envelope detector with temperature compensation
US4051441A (en) * 1976-05-21 1977-09-27 Rca Corporation Transistor amplifiers
JPS5330850A (en) * 1976-09-03 1978-03-23 Hitachi Ltd Gain control circuit
JPS5737905A (en) * 1980-08-14 1982-03-02 Toshiba Corp Envelope curve wave detecting circuit
JPS5762779A (en) * 1980-09-29 1982-04-15 Toshiba Corp Alwave rectifying circuit
JPS57135370A (en) * 1981-02-16 1982-08-20 Matsushita Electric Ind Co Ltd Level detecting circuit
GB2135556A (en) * 1983-02-23 1984-08-30 Mcmichael Ltd Radio transmitter arrangements
US4523155A (en) * 1983-05-04 1985-06-11 Motorola, Inc. Temperature compensated automatic output control circuitry for RF signal power amplifiers with wide dynamic range
JP2525346B2 (ja) * 1983-10-27 1996-08-21 富士通株式会社 定電流源回路を有する差動増幅回路
US4578820A (en) * 1984-03-05 1986-03-25 General Electric Company Received signal strength indicator
US4906500A (en) * 1986-08-05 1990-03-06 Amoco Corporation Blends of a poly(aryl ether) and a poly(alkylene terephthalate) for electrical devices
US4996500A (en) * 1989-10-24 1991-02-26 Hewlett-Packard Company Automatic control system
US5150075A (en) * 1991-06-03 1992-09-22 Motorola, Inc. Power amplifier ramp up method and apparatus
US5278994A (en) * 1991-06-03 1994-01-11 Motorola, Inc. Power amplifier saturation detection and correction method and apparatus
US5200654A (en) * 1991-11-20 1993-04-06 National Semiconductor Corporation Trim correction circuit with temperature coefficient compensation
JP2728007B2 (ja) * 1995-02-13 1998-03-18 村田機械株式会社 紡績機の糸継ぎ方法

Also Published As

Publication number Publication date
SE9401053L (sv) 1994-10-06
FR2703860A1 (fr) 1994-10-14
CN1044657C (zh) 1999-08-11
DE4411733C2 (de) 2001-08-02
AU667261B2 (en) 1996-03-14
CA2120095C (en) 1999-02-16
GB2276992A (en) 1994-10-12
GB2276992B (en) 1997-08-27
CA2120095A1 (en) 1994-10-06
FR2703860B1 (fr) 1996-10-25
SE516787C2 (sv) 2002-03-05
CN1104006A (zh) 1995-06-21
AU5913394A (en) 1994-10-06
JPH0730460A (ja) 1995-01-31
GB9406354D0 (en) 1994-05-25
SE9401053D0 (sv) 1994-03-29
US5448770A (en) 1995-09-05
DE4411733A1 (de) 1994-11-03

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Legal Events

Date Code Title Description
EE Request for examination
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 04/04/2014