CA2154082A1 - Communications system - Google Patents

Communications system

Info

Publication number
CA2154082A1
CA2154082A1 CA002154082A CA2154082A CA2154082A1 CA 2154082 A1 CA2154082 A1 CA 2154082A1 CA 002154082 A CA002154082 A CA 002154082A CA 2154082 A CA2154082 A CA 2154082A CA 2154082 A1 CA2154082 A1 CA 2154082A1
Authority
CA
Canada
Prior art keywords
transmission power
voltage
transmission
switch
communications system
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002154082A
Other languages
English (en)
French (fr)
Inventor
Tatsuya Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2154082A1 publication Critical patent/CA2154082A1/en
Abandoned legal-status Critical Current

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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
CA002154082A 1993-01-25 1994-01-21 Communications system Abandoned CA2154082A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5009922A JP2937673B2 (ja) 1993-01-25 1993-01-25 通信装置
JP5-009922 1993-01-25

Publications (1)

Publication Number Publication Date
CA2154082A1 true CA2154082A1 (en) 1994-08-04

Family

ID=11733589

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002154082A Abandoned CA2154082A1 (en) 1993-01-25 1994-01-21 Communications system

Country Status (9)

Country Link
US (1) US5737697A (OSRAM)
EP (1) EP0681375B1 (OSRAM)
JP (1) JP2937673B2 (OSRAM)
KR (1) KR0165006B1 (OSRAM)
CA (1) CA2154082A1 (OSRAM)
DE (1) DE69433321D1 (OSRAM)
FI (1) FI953542A7 (OSRAM)
TW (1) TW237583B (OSRAM)
WO (1) WO1994017598A1 (OSRAM)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10190381A (ja) * 1996-12-27 1998-07-21 Fujitsu Ltd 送受信装置
JP3368464B2 (ja) * 1998-03-25 2003-01-20 富士通株式会社 送信出力安定化装置
JP2000151317A (ja) * 1998-11-10 2000-05-30 Hitachi Ltd 送信機および電力増幅器
JP2001024454A (ja) * 1999-07-07 2001-01-26 Matsushita Electric Ind Co Ltd 自動利得制御装置及び方法、並びに自動利得制御機能を持った無線通信装置
US7061313B2 (en) * 2000-05-05 2006-06-13 Telefonaktiebolaget Lm Ericsson (Publ) Dual feedback linear amplifier
DE10057439A1 (de) * 2000-11-20 2002-05-23 Nokia Mobile Phones Ltd Spannungsregler für eine gepulste Last, insbesondere für einen Mobiltelefon- oder Telematik-Sender
US6711389B2 (en) 2001-02-16 2004-03-23 Telefonaktiebolaget L.M. Ericsson Power controller for a mobile terminal
JP2002280911A (ja) * 2001-03-19 2002-09-27 Nec Corp 送信回路及びそれを搭載した通信端末
DE10132352A1 (de) 2001-07-04 2003-01-23 Infineon Technologies Ag Vorrichtung und Verfahren zur Konstanthaltung der Sendeleistung von Funkgeräten
DE10307426B4 (de) * 2003-02-21 2006-06-14 Infineon Technologies Ag Schaltungsanordnung zum Senden und Empfangen von Funksignalen und Verwendung einer solchen, sowie Verfahren zur Frequenzumsetzung in einer Verstärkungseinrichtung
US7353006B2 (en) * 2003-03-12 2008-04-01 Analog Devices, Inc. Closed loop power control of non-constant envelope waveforms using sample/hold
US7148749B2 (en) * 2005-01-31 2006-12-12 Freescale Semiconductor, Inc. Closed loop power control with high dynamic range
CN1983851B (zh) * 2006-06-16 2010-07-28 华为技术有限公司 一种使功放支持多功率的方法及射频模块
US8340576B2 (en) * 2010-06-29 2012-12-25 Stmicroelectronics S.R.L. Electronic circuit for communicating through capacitive coupling
JP5699758B2 (ja) * 2011-04-01 2015-04-15 ソニー株式会社 受信装置、受信方法、およびプログラム
US9147636B2 (en) 2011-06-29 2015-09-29 Stmicroelectronics S.R.L. Method for verifying the alignment between integrated electronic devices
US8478213B2 (en) * 2011-10-14 2013-07-02 Research In Motion Limited Methods and apparatus for power control
EP3306576B1 (fr) * 2016-10-05 2023-03-15 The Swatch Group Research and Development Ltd Procédé et système d'accès securisé à un espace déterminé au moyen d'un objet portable
CN108322237B (zh) * 2017-01-14 2020-09-29 鸿富锦精密工业（深圳）有限公司 干扰抑制系统及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126925A (ja) * 1983-12-13 1985-07-06 Nec Corp 自動送信電力制御回路
JPS62278823A (ja) * 1986-05-28 1987-12-03 Hitachi Shonan Denshi Kk 電力制御回路
AT387995B (de) * 1987-06-12 1989-04-10 Andritz Ag Maschf Austragvorrichtung
JPS647719A (en) * 1987-06-29 1989-01-11 Nec Corp Transmitting power control circuit
JPH0198304A (ja) * 1987-10-09 1989-04-17 Furuno Electric Co Ltd 電力増幅回路装置
GB2247793A (en) * 1990-09-06 1992-03-11 Motorola Inc Control of pulse power amplifier rise and fall
CA2088813C (en) * 1992-03-02 2004-02-03 Willem G. Durtler Automatic level control circuit for dual mode analog/digital cellular telephone
JPH06132873A (ja) * 1992-10-21 1994-05-13 Nec Corp 電力制御装置

Also Published As

Publication number Publication date
EP0681375B1 (en) 2003-11-12
KR0165006B1 (ko) 1999-02-01
DE69433321D1 (de) 2003-12-18
TW237583B (OSRAM) 1995-01-01
KR960700575A (ko) 1996-01-20
EP0681375A1 (en) 1995-11-08
FI953542A0 (fi) 1995-07-24
JP2937673B2 (ja) 1999-08-23
WO1994017598A1 (fr) 1994-08-04
FI953542L (fi) 1995-09-01
FI953542A7 (fi) 1995-09-01
US5737697A (en) 1998-04-07
JPH06224785A (ja) 1994-08-12
EP0681375A4 (en) 1997-10-22

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued
FZDE Discontinued

Effective date: 20000121