FR2748874B1 - Amplificateur et telephone portable l'utilisant - Google Patents

Amplificateur et telephone portable l'utilisant

Info

Publication number
FR2748874B1
FR2748874B1 FR9705903A FR9705903A FR2748874B1 FR 2748874 B1 FR2748874 B1 FR 2748874B1 FR 9705903 A FR9705903 A FR 9705903A FR 9705903 A FR9705903 A FR 9705903A FR 2748874 B1 FR2748874 B1 FR 2748874B1
Authority
FR
France
Prior art keywords
amplifier
same
portable telephone
telephone
portable
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.)
Expired - Fee Related
Application number
FR9705903A
Other languages
English (en)
Other versions
FR2748874A1 (fr
Inventor
Kazuhiro Nakano
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of FR2748874A1 publication Critical patent/FR2748874A1/fr
Application granted granted Critical
Publication of FR2748874B1 publication Critical patent/FR2748874B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Amplifiers (AREA)
  • Transceivers (AREA)
FR9705903A 1996-05-15 1997-05-14 Amplificateur et telephone portable l'utilisant Expired - Fee Related FR2748874B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8145096A JPH09307365A (ja) 1996-05-15 1996-05-15 増幅器及びその増幅器を用いた携帯電話機

Publications (2)

Publication Number Publication Date
FR2748874A1 FR2748874A1 (fr) 1997-11-21
FR2748874B1 true FR2748874B1 (fr) 2000-11-10

Family

ID=15377289

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9705903A Expired - Fee Related FR2748874B1 (fr) 1996-05-15 1997-05-14 Amplificateur et telephone portable l'utilisant

Country Status (7)

Country Link
US (1) US5960334A (fr)
JP (1) JPH09307365A (fr)
KR (1) KR100260965B1 (fr)
CN (1) CN1082776C (fr)
DE (1) DE19720408C2 (fr)
FR (1) FR2748874B1 (fr)
GB (2) GB9708658D0 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3695938B2 (ja) * 1998-05-28 2005-09-14 アルプス電気株式会社 緩衝増幅回路
US6175724B1 (en) * 1998-07-31 2001-01-16 Motorola, Inc. Band switchable injection oscillator and communication device using same
US6281755B1 (en) * 1998-12-28 2001-08-28 Siemens Aktiengesellschaft High-frequency power amplifier
JP2000332535A (ja) * 1999-05-17 2000-11-30 Alps Electric Co Ltd 周波数帯域切換型電圧制御発振器
EP1069681A3 (fr) 1999-07-12 2003-08-13 Alps Electric Co., Ltd. Circuit tampon commutable
US6481716B2 (en) * 2001-02-12 2002-11-19 Edward A. Trice Method of playing a variant of chess
US6819941B2 (en) 2001-10-11 2004-11-16 Rf Micro Devices, Inc. Single output stage power amplification for multimode applications
EP1418668A1 (fr) * 2002-11-07 2004-05-12 Dialog Semiconductor GmbH Amplificateur tampon à haute vitesse et à haute isolation
DE10305360B4 (de) * 2003-02-10 2013-07-04 Rohde & Schwarz Gmbh & Co. Kg Hochfrequenz-Verstärkerschaltung mit veränderbarer Ausgangskapazität
US7146149B1 (en) * 2003-07-10 2006-12-05 Maxim Integrated Products, Inc. High isolation switch buffer for frequency hopping radios
US7856221B1 (en) * 2005-12-22 2010-12-21 Maxim Integrated Products, Inc. Mixer topologies having improved second order intermodulation suppression
JP2007267181A (ja) * 2006-03-29 2007-10-11 Matsushita Electric Ind Co Ltd 高周波電力送信装置
JP2009088751A (ja) * 2007-09-28 2009-04-23 Muneo Yamabe 増幅回路
KR200458827Y1 (ko) 2007-11-20 2012-02-22 엘지이노텍 주식회사 고주파 전력증폭회로

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872387A (en) * 1972-09-29 1975-03-18 Zenith Radio Corp Frequency response modifier for fixed-tuned IF amplifiers
US4371846A (en) * 1980-10-29 1983-02-01 Sperry Corporation Bandwidth control circuitry for radar i-f amplifier
DE3690396T1 (fr) * 1985-07-30 1987-08-27
JPS6352510A (ja) * 1986-08-22 1988-03-05 Toshiba Corp 電子同調チユ−ナ
US5060294A (en) * 1990-07-05 1991-10-22 Motorola, Inc. Dual mode power amplifier for radiotelephone
FR2673055B1 (fr) * 1991-02-18 1993-04-23 Matra Communication Module d'amplification bibande.
JP3037850B2 (ja) * 1993-04-30 2000-05-08 アルプス電気株式会社 高周波増幅器
DE4327922A1 (de) * 1993-08-19 1995-02-23 Philips Patentverwaltung Kennzeichenumsetzer mit Schutzschaltung

Also Published As

Publication number Publication date
DE19720408C2 (de) 2002-08-01
KR970078174A (ko) 1997-12-12
GB9709771D0 (en) 1997-07-09
FR2748874A1 (fr) 1997-11-21
GB9708658D0 (en) 1997-06-18
CN1082776C (zh) 2002-04-10
GB2313244A (en) 1997-11-19
CN1165466A (zh) 1997-11-19
GB2313244B (en) 2000-07-05
JPH09307365A (ja) 1997-11-28
US5960334A (en) 1999-09-28
KR100260965B1 (ko) 2000-07-01
DE19720408A1 (de) 1997-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20080131