JP2005268897A5 - - Google Patents
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- Publication number
- JP2005268897A5 JP2005268897A5 JP2004074448A JP2004074448A JP2005268897A5 JP 2005268897 A5 JP2005268897 A5 JP 2005268897A5 JP 2004074448 A JP2004074448 A JP 2004074448A JP 2004074448 A JP2004074448 A JP 2004074448A JP 2005268897 A5 JP2005268897 A5 JP 2005268897A5
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- JP
- Japan
- 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.)
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004074448A JP4260660B2 (ja) | 2004-03-16 | 2004-03-16 | 可変指向性アンテナ及びこれを用いた受信システム |
| US10/977,441 US6914558B1 (en) | 2004-03-16 | 2004-10-29 | Variable directivity antenna apparatus and receiver system using such antenna apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004074448A JP4260660B2 (ja) | 2004-03-16 | 2004-03-16 | 可変指向性アンテナ及びこれを用いた受信システム |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2005268897A JP2005268897A (ja) | 2005-09-29 |
| JP2005268897A5 true JP2005268897A5 (enExample) | 2007-04-19 |
| JP4260660B2 JP4260660B2 (ja) | 2009-04-30 |
Family
ID=34698011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004074448A Expired - Fee Related JP4260660B2 (ja) | 2004-03-16 | 2004-03-16 | 可変指向性アンテナ及びこれを用いた受信システム |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6914558B1 (enExample) |
| JP (1) | JP4260660B2 (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7116281B2 (en) * | 2004-05-26 | 2006-10-03 | Symbol Technologies, Inc. | Universal dipole with adjustable length antenna elements |
| JP4165463B2 (ja) * | 2004-06-28 | 2008-10-15 | 船井電機株式会社 | ディジタルテレビジョン放送信号受信装置 |
| JP4502790B2 (ja) * | 2004-11-26 | 2010-07-14 | Ｄｘアンテナ株式会社 | 放射器および放射器を備えるアンテナ |
| US7941091B1 (en) * | 2006-06-19 | 2011-05-10 | Rf Magic, Inc. | Signal distribution system employing a multi-stage signal combiner network |
| JP4879726B2 (ja) * | 2006-12-28 | 2012-02-22 | Ｄｘアンテナ株式会社 | アンテナ装置 |
| JP5014905B2 (ja) * | 2007-07-12 | 2012-08-29 | Ｄｘアンテナ株式会社 | 可変指向性アンテナ装置 |
| JP4943280B2 (ja) * | 2007-09-20 | 2012-05-30 | Ｄｘアンテナ株式会社 | マルチビームアンテナ |
| EP2724545B1 (en) * | 2011-06-27 | 2019-03-06 | Trilithic, Inc. | Method for detecting leakage in digitally modulated systems |
| US9520052B2 (en) * | 2015-04-15 | 2016-12-13 | Innovative Control Systems, Inc. | Security tag system with improved range consistency |
| CN106921044B (zh) * | 2017-01-22 | 2020-04-21 | Oppo广东移动通信有限公司 | 天线装置和电子装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3806930A (en) * | 1969-12-23 | 1974-04-23 | Siemens Ag | Method and apparatus for electronically controlling the pattern of a phased array antenna |
| JPS6338574Y2 (enExample) | 1980-11-10 | 1988-10-12 | ||
| EP0700116A3 (en) * | 1994-08-29 | 1998-01-07 | Atr Optical And Radio Communications Research Laboratories | Apparatus and method for controlling array antenna comprising a plurality of antenna elements with improved incoming beam tracking |
| US6809691B2 (en) * | 2002-04-05 | 2004-10-26 | Matsushita Electric Industrial Co., Ltd. | Directivity controllable antenna and antenna unit using the same |
| US6933907B2 (en) * | 2003-04-02 | 2005-08-23 | Dx Antenna Company, Limited | Variable directivity antenna and variable directivity antenna system using such antennas |
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2004
- 2004-03-16 JP JP2004074448A patent/JP4260660B2/ja not_active Expired - Fee Related
- 2004-10-29 US US10/977,441 patent/US6914558B1/en not_active Expired - Fee Related