HK1000299A1 - Antenna and small portable radio device - Google Patents

Antenna and small portable radio device

Info

Publication number
HK1000299A1
HK1000299A1 HK97101837A HK97101837A HK1000299A1 HK 1000299 A1 HK1000299 A1 HK 1000299A1 HK 97101837 A HK97101837 A HK 97101837A HK 97101837 A HK97101837 A HK 97101837A HK 1000299 A1 HK1000299 A1 HK 1000299A1
Authority
HK
Hong Kong
Prior art keywords
antenna
radio device
portable radio
small portable
small
Prior art date
Application number
HK97101837A
Inventor
Hama Norio
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 HK1000299A1 publication Critical patent/HK1000299A1/en

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
HK97101837A 1991-05-09 1997-09-25 Antenna and small portable radio device HK1000299A1 (en)

Applications Claiming Priority (3)

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

Publications (1)

Publication Number Publication Date
HK1000299A1 true HK1000299A1 (en) 1998-02-20

Family

ID=26444755

Family Applications (1)

Application Number Title Priority Date Filing Date
HK97101837A HK1000299A1 (en) 1991-05-09 1997-09-25 Antenna and small portable radio device

Country Status (4)

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

Families Citing this family (16)

* 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
EP0616384B1 (en) * 1993-03-17 2000-05-31 Seiko Epson Corporation Antenna device and apparatus including such an antenna device
GB2304465B (en) * 1993-03-17 1997-10-22 Seiko Epson Corp Slot antenna device
US5757326A (en) * 1993-03-29 1998-05-26 Seiko Epson Corporation Slot antenna device and wireless apparatus employing the antenna device
FR2724274B1 (en) * 1994-09-07 1996-11-08 Telediffusion Fse FRAME ANTENNA, INSENSITIVE TO CAPACITIVE EFFECT, AND TRANSCEIVER DEVICE COMPRISING SUCH ANTENNA
JP3417083B2 (en) * 1994-10-04 2003-06-16 セイコーエプソン株式会社 Portable radio
GB9806612D0 (en) * 1998-03-28 1998-05-27 Philips Electronics Nv Communication device
DE10047903A1 (en) * 2000-09-27 2002-04-25 Siemens Ag Mobile radio transceiver with tunable antenna
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
JP4770793B2 (en) * 2007-05-18 2011-09-14 パナソニック電工株式会社 Antenna device
JP4770792B2 (en) * 2007-05-18 2011-09-14 パナソニック電工株式会社 Antenna device
JP5896060B2 (en) * 2010-11-12 2016-03-30 セイコーエプソン株式会社 Electronic clock with built-in antenna
WO2015159324A1 (en) * 2014-04-17 2015-10-22 三菱電機株式会社 Antenna device and antenna-manufacturing method

Family Cites Families (6)

* 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 (en) * 1982-09-07 1984-03-12 Toshiba Corp Antenna device
DE3465840D1 (en) * 1983-03-19 1987-10-08 Nec Corp Double loop antenna
US4862181A (en) * 1986-10-31 1989-08-29 Motorola, Inc. Miniature integral antenna-radio apparatus
US5136719A (en) * 1988-12-05 1992-08-04 Seiko Corp. Automatic antenna tubing method and apparatus
JPH0383404A (en) * 1989-08-28 1991-04-09 Toshiba Corp Microwave mixer circuit

Also Published As

Publication number Publication date
WO1992020117A1 (en) 1992-11-12
EP0538485B1 (en) 1997-01-22
DE69216983D1 (en) 1997-03-06
EP0538485A4 (en) 1994-01-19
EP0538485A1 (en) 1993-04-28

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20120505