DE3785675D1 - Geraet zur abstimmung einer antenne fuer personenkommunikationsanlagen. - Google Patents
Geraet zur abstimmung einer antenne fuer personenkommunikationsanlagen.Info
- Publication number
- DE3785675D1 DE3785675D1 DE8787901775T DE3785675T DE3785675D1 DE 3785675 D1 DE3785675 D1 DE 3785675D1 DE 8787901775 T DE8787901775 T DE 8787901775T DE 3785675 T DE3785675 T DE 3785675T DE 3785675 D1 DE3785675 D1 DE 3785675D1
- Authority
- DE
- Germany
- Prior art keywords
- tuning
- antenna
- tuning indicator
- indicator circuit
- communication systems
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
- H03J3/14—Visual indication, e.g. magic eye
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1987/000001 WO1988005213A1 (en) | 1987-01-02 | 1987-01-02 | Antenna tuning apparatus for personal communications devices |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3785675D1 true DE3785675D1 (de) | 1993-06-03 |
DE3785675T2 DE3785675T2 (de) | 1993-08-19 |
Family
ID=22202233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787901775T Expired - Lifetime DE3785675T2 (de) | 1987-01-02 | 1987-01-02 | Geraet zur abstimmung einer antenne fuer personenkommunikationsanlagen. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4817196A (de) |
EP (1) | EP0341239B1 (de) |
KR (1) | KR890700930A (de) |
AT (1) | ATE88836T1 (de) |
CA (1) | CA1288862C (de) |
DE (1) | DE3785675T2 (de) |
WO (1) | WO1988005213A1 (de) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4851830A (en) * | 1987-10-20 | 1989-07-25 | Telefind Corp. | 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 |
US5052049A (en) * | 1987-10-20 | 1991-09-24 | Telefind Corporation | Paging receiver with continuously tunable antenna |
US5265265A (en) * | 1990-02-09 | 1993-11-23 | Seiko Epson Corporation | Wristwatch radio communication device having an improved noise shielding structure |
US5530453A (en) * | 1988-03-23 | 1996-06-25 | Seiko Epson Corporation | Wrist carried wireless instrument |
US5280646A (en) * | 1988-03-23 | 1994-01-18 | Seiko Epson Corporation | Paging device with structure for removing static electricity |
US5225846A (en) * | 1988-03-23 | 1993-07-06 | Seiko Epson Corporation | Wrist carried wireless instrument |
JPH0777324B2 (ja) * | 1988-03-23 | 1995-08-16 | セイコーエプソン株式会社 | 腕装着型無線機 |
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 |
CA2049969A1 (en) * | 1989-03-28 | 1990-09-29 | Andrew A. Andros | Paging receiver with continuously tunable antenna and rf amplifier |
US4977614A (en) * | 1989-10-23 | 1990-12-11 | Motorola, Inc. | Wristband with loop antenna |
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 |
US5189431A (en) * | 1990-10-22 | 1993-02-23 | Motorola, Imc. | Removable antenna coupling on a wrist watch pager |
US5206639A (en) * | 1990-10-25 | 1993-04-27 | Timex Corporation | Single antenna dual frequency transponder |
US5263183A (en) * | 1991-04-30 | 1993-11-16 | Seiko Corp. | Radio antenna tuning circuit |
US5280645A (en) * | 1991-05-24 | 1994-01-18 | Motorola, Inc. | Adjustable wristband loop antenna |
US5265272A (en) * | 1991-08-12 | 1993-11-23 | Motorola, Inc. | Modular wrist band antenna |
KR930703716A (ko) * | 1991-11-05 | 1993-11-30 | 스스무 아이자와 | 무선기용 안테나 장치 |
US5589840A (en) * | 1991-11-05 | 1996-12-31 | Seiko Epson Corporation | Wrist-type wireless instrument and antenna apparatus |
US5410749A (en) * | 1992-12-09 | 1995-04-25 | Motorola, Inc. | Radio communication device having a microstrip antenna with integral receiver systems |
KR100298001B1 (ko) * | 1993-03-17 | 2001-10-24 | 구사마 사부로 | 팔찌형안테나장치및그장치를구비한무선기 |
US5539414A (en) * | 1993-09-02 | 1996-07-23 | Inmarsat | Folded dipole microstrip antenna |
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 |
US5625891A (en) * | 1994-11-28 | 1997-04-29 | Tucker; Dominic | Enclosure for tuning paging receivers |
US5659325A (en) * | 1994-12-02 | 1997-08-19 | Harris Corporation | Low impedance loop antenna and drive circuitry |
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 |
US7058372B1 (en) | 2002-11-01 | 2006-06-06 | Integration Associates Inc. | Method and apparatus for automatic tuning of a resonant loop antenna |
DE10302550B3 (de) * | 2003-01-22 | 2004-08-12 | Forschungszentrum Karlsruhe Gmbh | Gürtelspule als Sende-/Empfangsantenne in einer Transpondereinrichtung |
US7406003B2 (en) * | 2003-05-29 | 2008-07-29 | Timex Group B.V. | Multifunctional timepiece module with application specific printed circuit boards |
US10575376B2 (en) | 2004-02-25 | 2020-02-25 | Lynk Labs, Inc. | AC light emitting diode and AC LED drive methods and apparatus |
US10499465B2 (en) | 2004-02-25 | 2019-12-03 | Lynk Labs, Inc. | High frequency multi-voltage and multi-brightness LED lighting devices and systems and methods of using same |
US8073548B2 (en) * | 2004-08-24 | 2011-12-06 | Sensors For Medicine And Science, Inc. | Wristband or other type of band having an adjustable antenna for use with a sensor reader |
US7548211B2 (en) * | 2006-03-30 | 2009-06-16 | Phonak Ag | Wireless audio signal receiver device for a hearing instrument |
GB0616927D0 (en) * | 2006-08-26 | 2006-10-04 | Qinetiq Ltd | Reader apparatus |
TW201304272A (zh) * | 2011-07-15 | 2013-01-16 | Wistron Neweb Corp | 隨身電子裝置之天線結構及隨身無線電子裝置 |
CN104038176A (zh) * | 2014-06-16 | 2014-09-10 | 信维创科通信技术(北京)有限公司 | 一种可穿戴设备及其天线自适应阻抗匹配系统 |
KR102595113B1 (ko) * | 2016-05-02 | 2023-10-30 | 삼성전자주식회사 | 안테나를 포함하는 전자 장치 |
US10615489B2 (en) * | 2016-06-08 | 2020-04-07 | Futurewei Technologies, Inc. | Wearable article apparatus and method with multiple antennas |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2255897A (en) * | 1937-12-24 | 1941-09-16 | Rebori | Means for radio communication |
US3526838A (en) * | 1967-12-20 | 1970-09-01 | Heath Co | Tuning indicator system for fm receiver |
US3736591A (en) * | 1970-10-30 | 1973-05-29 | Motorola Inc | Receiving antenna for miniature radio receiver |
US4017748A (en) * | 1975-12-29 | 1977-04-12 | Motorola, Inc. | Monolithic AC level detector |
JPS53101210A (en) * | 1977-02-16 | 1978-09-04 | Matsushita Electric Ind Co Ltd | Signal level display unit |
US4419770A (en) * | 1981-05-02 | 1983-12-06 | Sony Corporation | Wrist AM radio receiver |
JPS57190429A (en) * | 1981-05-18 | 1982-11-24 | Nec Corp | Portable radio receiver |
EP0100639A3 (de) * | 1982-08-02 | 1986-03-05 | Shaye Communications Limited | Antennenkopplungsvorrichtung |
CA1223346A (en) * | 1984-08-14 | 1987-06-23 | Siltronics Ltd. | Antenna |
US4713808A (en) * | 1985-11-27 | 1987-12-15 | A T & E Corporation | Watch pager system and communication protocol |
EP0184606A3 (de) * | 1984-12-05 | 1988-03-30 | A.T. & E. LABORATORIES, INC. | Aufruf-Uhrsystem mit Zeitfensterkommunikation |
-
1987
- 1987-01-02 WO PCT/US1987/000001 patent/WO1988005213A1/en active IP Right Grant
- 1987-01-02 AT AT87901775T patent/ATE88836T1/de not_active IP Right Cessation
- 1987-01-02 DE DE8787901775T patent/DE3785675T2/de not_active Expired - Lifetime
- 1987-01-02 US US07/074,426 patent/US4817196A/en not_active Expired - Fee Related
- 1987-01-02 EP EP87901775A patent/EP0341239B1/de not_active Expired - Lifetime
- 1987-12-31 CA CA000555701A patent/CA1288862C/en not_active Expired - Lifetime
-
1988
- 1988-09-02 KR KR1019880701060A patent/KR890700930A/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE88836T1 (de) | 1993-05-15 |
CA1288862C (en) | 1991-09-10 |
KR890700930A (ko) | 1989-04-28 |
DE3785675T2 (de) | 1993-08-19 |
US4817196A (en) | 1989-03-28 |
WO1988005213A1 (en) | 1988-07-14 |
EP0341239A1 (de) | 1989-11-15 |
EP0341239B1 (de) | 1993-04-28 |
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