DE3788427D1 - System zur automatischen abstimmung einer antenne für tragbare kommunikationsanlagen. - Google Patents

System zur automatischen abstimmung einer antenne für tragbare kommunikationsanlagen.

Info

Publication number
DE3788427D1
DE3788427D1 DE87900916T DE3788427T DE3788427D1 DE 3788427 D1 DE3788427 D1 DE 3788427D1 DE 87900916 T DE87900916 T DE 87900916T DE 3788427 T DE3788427 T DE 3788427T DE 3788427 D1 DE3788427 D1 DE 3788427D1
Authority
DE
Germany
Prior art keywords
antenna
communication systems
portable communication
automatic tuning
tuning
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
DE87900916T
Other languages
English (en)
Other versions
DE3788427T2 (de
Inventor
Philip Macnak
James Irwin
Walter Davis
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.)
Motorola Solutions Inc
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
Application granted granted Critical
Publication of DE3788427D1 publication Critical patent/DE3788427D1/de
Publication of DE3788427T2 publication Critical patent/DE3788427T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
DE87900916T 1987-01-02 1987-01-02 System zur automatischen abstimmung einer antenne für tragbare kommunikationsanlagen. Expired - Fee Related DE3788427T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1987/000002 WO1988005214A1 (en) 1987-01-02 1987-01-02 Automatic antenna tuning system for portable communication devices

Publications (2)

Publication Number Publication Date
DE3788427D1 true DE3788427D1 (de) 1994-01-20
DE3788427T2 DE3788427T2 (de) 1994-03-24

Family

ID=22202234

Family Applications (1)

Application Number Title Priority Date Filing Date
DE87900916T Expired - Fee Related DE3788427T2 (de) 1987-01-02 1987-01-02 System zur automatischen abstimmung einer antenne für tragbare kommunikationsanlagen.

Country Status (8)

Country Link
US (1) US4862516A (de)
EP (1) EP0341238B1 (de)
JP (1) JPH0630462B2 (de)
KR (2) KR930010832B1 (de)
CA (1) CA1270529A (de)
DE (1) DE3788427T2 (de)
HK (1) HK9197A (de)
WO (1) WO1988005214A1 (de)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5052049A (en) * 1987-10-20 1991-09-24 Telefind Corporation Paging receiver with continuously tunable antenna
US5012235A (en) * 1987-10-20 1991-04-30 Telefind Corporation Paging receiver with continuously tunable antenna and RF amplifier
GB2220778B (en) * 1988-07-11 1992-03-25 Automated Security Vehicle security
US5243356A (en) * 1988-08-05 1993-09-07 Seiko Epson Corporation Antenna circuit and wrist radio instrument
US5136719A (en) * 1988-12-05 1992-08-04 Seiko Corp. Automatic antenna tubing method and apparatus
US5077834A (en) * 1989-03-28 1991-12-31 Telefind Corporation Paging receiver with continuously tunable antenna and RF amplifier
CA2049969A1 (en) * 1989-03-28 1990-09-29 Andrew A. Andros Paging receiver with continuously tunable antenna and rf amplifier
US5134724A (en) * 1990-05-08 1992-07-28 Seiko Corp. Wrist band for wrist-mounted radio with an uninsulated buckle
US5134418A (en) * 1990-06-04 1992-07-28 Motorola, Inc. Apparatus for sensing the integrity of a wristband antenna
US6055420A (en) * 1990-06-19 2000-04-25 Bose Corproation Antenna system having a high Q circuit
US5673054A (en) * 1991-05-09 1997-09-30 Seiko Epson Corporation Antenna and miniature portable wireless transceiver
US5280645A (en) * 1991-05-24 1994-01-18 Motorola, Inc. Adjustable wristband loop antenna
US5589840A (en) * 1991-11-05 1996-12-31 Seiko Epson Corporation Wrist-type wireless instrument and antenna apparatus
US5483688A (en) * 1993-01-22 1996-01-09 Seiko Communications Holding N.V. Adaptive automatic antenna tuning method and apparatus
US5532705A (en) * 1993-03-17 1996-07-02 Seiko Epson Corporation Wrist-mounted-type antenna device and apparatus having the antenna device
US5757326A (en) * 1993-03-29 1998-05-26 Seiko Epson Corporation Slot antenna device and wireless apparatus employing the antenna device
US5539414A (en) * 1993-09-02 1996-07-23 Inmarsat Folded dipole microstrip antenna
GB2289989B (en) 1994-05-25 1999-01-06 Nokia Mobile Phones Ltd Adaptive antenna matching
JP3417083B2 (ja) * 1994-10-04 2003-06-16 セイコーエプソン株式会社 携帯用無線機
JP2888179B2 (ja) * 1995-08-24 1999-05-10 日本電気株式会社 アンテナ同調制御装置
US5991608A (en) * 1996-04-16 1999-11-23 U.S. Phillips Corporation Portable communication device with optimized transmission loss
DE19620333A1 (de) * 1996-05-21 1997-11-27 Daimler Benz Aerospace Ag Symmetrierendes Antennenanpaßgerät
US5745844A (en) * 1996-10-04 1998-04-28 Motorola, Inc. Receiver control in a communication device by antenna de-tuning in strong signal conditions, and method therefor
JPH10276112A (ja) * 1997-03-28 1998-10-13 Sanyo Electric Co Ltd ラジオ受信機
GB9806612D0 (en) * 1998-03-28 1998-05-27 Philips Electronics Nv Communication device
US6560270B1 (en) * 1999-03-04 2003-05-06 Northrop Grumman Corporation Method for tuning a spread spectrum receiver
DE19918057C2 (de) * 1999-04-21 2002-11-07 Infineon Technologies Ag Vorrichtung zur Einstellung der Abstimmspannung von Abstimmschwingkreisen
US7349691B2 (en) * 2001-07-03 2008-03-25 Microsoft Corporation System and apparatus for performing broadcast and localcast communications
US7190933B2 (en) 2002-11-01 2007-03-13 Intergration Associates Inc. Method and apparatus for automatic tuning of a resonant loop antenna in a transceiver circuit
JP3970751B2 (ja) * 2002-11-06 2007-09-05 新潟精密株式会社 ダブルコンバージョン方式の受信機
JP2004282425A (ja) * 2003-03-17 2004-10-07 Casio Comput Co Ltd 電波受信装置、電波時計及び同調容量設定方法
JP4088566B2 (ja) * 2003-08-07 2008-05-21 本田技研工業株式会社 平行軸式変速機
JP2006177927A (ja) * 2004-11-25 2006-07-06 Seiko Instruments Inc 電波修正時計
JP2007318585A (ja) * 2006-05-29 2007-12-06 Alps Electric Co Ltd デジタル信号受信装置
EP1876708B1 (de) * 2006-07-06 2008-09-10 Dibcom Integrierte Abstimmschaltung mit Antennenkontrolleinheit
US7479788B2 (en) * 2006-12-14 2009-01-20 Synaptics Incorporated Capacitive sensing device tuning
US20090122744A1 (en) * 2007-11-09 2009-05-14 Alexander Maltsev Selective relaying for wireless networks
JP5640655B2 (ja) * 2010-10-29 2014-12-17 ソニー株式会社 携帯通信装置、リーダ／ライタ装置及び共振周波数調整方法
US8878738B2 (en) * 2012-05-17 2014-11-04 Auden Techno Corp. Tunable antenna integrated system and module thereof
JP7341964B2 (ja) * 2020-09-15 2023-09-11 株式会社東芝 半導体装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044711A (de) * 1973-08-24 1975-04-22
JPS5345252B2 (de) * 1974-12-17 1978-12-05
US4053838A (en) * 1974-12-24 1977-10-11 Fujitsu Ten Limited Radio receiver
US4336534A (en) * 1978-07-17 1982-06-22 Trio Kabushiki Kaisha Control generator for use in broadcast receiver including improved signal level indicator
JPS5573144A (en) * 1978-11-27 1980-06-02 Sharp Corp Channel selection device for radio receiver or the like
US4285065A (en) * 1980-01-21 1981-08-18 Motorola, Inc. Radio with audio graphic equalizer
JPS56110331A (en) * 1980-02-05 1981-09-01 General Denshi Kogyo Kk Automatic tracking compensation circuit for electronic tuner
DE3115291C2 (de) * 1981-04-15 1983-07-21 Becker Autoradiowerk Gmbh, 7516 Karlsbad "Abstimmschaltung für Hochfrequenzempfänger"
DE3347132C1 (de) * 1983-12-27 1985-07-04 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Automatisch arbeitendes Abgleichsystem fuer einen Tuner eines Fernsehempfangsgeraetes
EP0184606A3 (de) * 1984-12-05 1988-03-30 A.T. & E. LABORATORIES, INC. Aufruf-Uhrsystem mit Zeitfensterkommunikation

Also Published As

Publication number Publication date
US4862516A (en) 1989-08-29
CA1270529A (en) 1990-06-19
JPH02500633A (ja) 1990-03-01
JPH0630462B2 (ja) 1994-04-20
DE3788427T2 (de) 1994-03-24
WO1988005214A1 (en) 1988-07-14
KR890700931A (ko) 1989-04-28
EP0341238A1 (de) 1989-11-15
EP0341238B1 (de) 1993-12-08
KR930010832B1 (ko) 1993-11-12
HK9197A (en) 1997-01-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee