EP0538485A4 - - Google Patents

Info

Publication number
EP0538485A4
EP0538485A4 EP19920909642 EP92909642A EP0538485A4 EP 0538485 A4 EP0538485 A4 EP 0538485A4 EP 19920909642 EP19920909642 EP 19920909642 EP 92909642 A EP92909642 A EP 92909642A EP 0538485 A4 EP0538485 A4 EP 0538485A4
Authority
EP
European Patent Office
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.)
Granted
Application number
EP19920909642
Other versions
EP0538485B1 (en
EP0538485A1 (en
Inventor
Norio Hama
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of EP0538485A1 publication Critical patent/EP0538485A1/en
Publication of EP0538485A4 publication Critical patent/EP0538485A4/xx
Application granted granted Critical
Publication of EP0538485B1 publication Critical patent/EP0538485B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • 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
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals
EP92909642A 1991-05-09 1992-05-06 Antenna and small portable radio device Expired - Lifetime EP0538485B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP10424591 1991-05-09
JP104245/91 1991-05-09
JP25377391 1991-10-01
JP253773/91 1991-10-01
PCT/JP1992/000581 WO1992020117A1 (en) 1991-05-09 1992-05-06 Antenna and small portable radio device

Publications (3)

Publication Number Publication Date
EP0538485A1 EP0538485A1 (en) 1993-04-28
EP0538485A4 true EP0538485A4 (enrdf_load_stackoverflow) 1994-01-19
EP0538485B1 EP0538485B1 (en) 1997-01-22

Family

ID=26444755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92909642A Expired - Lifetime EP0538485B1 (en) 1991-05-09 1992-05-06 Antenna and small portable radio device

Country Status (4)

Country Link
EP (1) EP0538485B1 (enrdf_load_stackoverflow)
DE (1) DE69216983D1 (enrdf_load_stackoverflow)
HK (1) HK1000299A1 (enrdf_load_stackoverflow)
WO (1) WO1992020117A1 (enrdf_load_stackoverflow)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5589840A (en) * 1991-11-05 1996-12-31 Seiko Epson Corporation Wrist-type wireless instrument and antenna apparatus
EP0565725B1 (en) * 1991-11-05 1997-05-07 Seiko Epson Corporation Antenna device for radio apparatus
GB2276274B (en) * 1993-03-17 1997-10-22 Seiko Epson Corp Slot antenna device
GB2304466B (en) * 1993-03-17 1997-10-22 Seiko Epson Corp Slot antenna device
KR100298001B1 (ko) * 1993-03-17 2001-10-24 구사마 사부로 팔찌형안테나장치및그장치를구비한무선기
US5757326A (en) * 1993-03-29 1998-05-26 Seiko Epson Corporation Slot antenna device and wireless apparatus employing the antenna device
FR2724274B1 (fr) * 1994-09-07 1996-11-08 Telediffusion Fse Antenne cadre, insensible a l'effet capacitif, et dispositif emetteur recepteur comportant une telle antenne
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
JP3307248B2 (ja) 1996-12-09 2002-07-24 株式会社村田製作所 表面実装型アンテナおよび表面実装型アンテナ装置
GB9806612D0 (en) * 1998-03-28 1998-05-27 Philips Electronics Nv Communication device
DE10047903A1 (de) * 2000-09-27 2002-04-25 Siemens Ag Mobile Funksende-/Funkempfangseinrichtung mit abstimmbarer Antenne
US7362285B2 (en) * 2004-06-21 2008-04-22 Lutron Electronics Co., Ltd. Compact radio frequency transmitting and receiving antenna and control device employing same
US7439922B2 (en) 2006-12-19 2008-10-21 Nokia Corporation Antenna for a portable device
JP4770792B2 (ja) * 2007-05-18 2011-09-14 パナソニック電工株式会社 アンテナ装置
JP4770793B2 (ja) * 2007-05-18 2011-09-14 パナソニック電工株式会社 アンテナ装置
JP5896060B2 (ja) * 2010-11-12 2016-03-30 セイコーエプソン株式会社 アンテナ内蔵式電子時計
WO2015159324A1 (ja) 2014-04-17 2015-10-22 三菱電機株式会社 アンテナ装置及びアンテナ製造方法
JP2025148153A (ja) * 2024-03-25 2025-10-07 Idec株式会社 装着型アンテナ装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122485A1 (en) * 1983-03-19 1984-10-24 Nec Corporation Double loop antenna
US4862181A (en) * 1986-10-31 1989-08-29 Motorola, Inc. Miniature integral antenna-radio apparatus
EP0372430A2 (en) * 1988-12-05 1990-06-13 Seiko Corporation Automatic antenna tuning

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5627514A (en) * 1979-08-13 1981-03-17 Pioneer Electronic Corp Tuning circuit of balanced antenna
JPS5944103A (ja) * 1982-09-07 1984-03-12 Toshiba Corp アンテナ装置
JPH0383404A (ja) * 1989-08-28 1991-04-09 Toshiba Corp マイクロ波ミキサ回路

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122485A1 (en) * 1983-03-19 1984-10-24 Nec Corporation Double loop antenna
US4862181A (en) * 1986-10-31 1989-08-29 Motorola, Inc. Miniature integral antenna-radio apparatus
EP0372430A2 (en) * 1988-12-05 1990-06-13 Seiko Corporation Automatic antenna tuning

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9220117A1 *

Also Published As

Publication number Publication date
EP0538485B1 (en) 1997-01-22
WO1992020117A1 (en) 1992-11-12
HK1000299A1 (en) 1998-02-20
EP0538485A1 (en) 1993-04-28
DE69216983D1 (de) 1997-03-06

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