DK1658681T3 - Apparat til detektion af nærhed - Google Patents
Apparat til detektion af nærhedInfo
- Publication number
- DK1658681T3 DK1658681T3 DK04768125T DK04768125T DK1658681T3 DK 1658681 T3 DK1658681 T3 DK 1658681T3 DK 04768125 T DK04768125 T DK 04768125T DK 04768125 T DK04768125 T DK 04768125T DK 1658681 T3 DK1658681 T3 DK 1658681T3
- Authority
- DK
- Denmark
- Prior art keywords
- receiver
- radio frequency
- signals
- radio
- frequency receiver
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
- H04B5/26—Inductive coupling using coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
- G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0822—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection according to predefined selection scheme
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Near-Field Transmission Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Geophysics And Detection Of Objects (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0319518.7A GB0319518D0 (en) | 2003-08-19 | 2003-08-19 | Location monitoring apparatus |
PCT/GB2004/003566 WO2005020449A2 (en) | 2003-08-19 | 2004-08-19 | Proximity detecting apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
DK1658681T3 true DK1658681T3 (da) | 2007-10-08 |
Family
ID=28052812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK04768125T DK1658681T3 (da) | 2003-08-19 | 2004-08-19 | Apparat til detektion af nærhed |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070188375A1 (da) |
EP (1) | EP1658681B1 (da) |
AT (1) | ATE364934T1 (da) |
DE (1) | DE602004007013T2 (da) |
DK (1) | DK1658681T3 (da) |
GB (1) | GB0319518D0 (da) |
WO (1) | WO2005020449A2 (da) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2428342B (en) * | 2005-07-12 | 2007-05-23 | Robotics Ltd Const | Proximity sensing |
US8792826B2 (en) * | 2006-04-03 | 2014-07-29 | Eckey Corporation | Methods for determining proximity between radio frequency devices and controlling switches |
US7479871B2 (en) * | 2006-06-21 | 2009-01-20 | Mednovus, Inc. | Radio frequency warning system for ferromagnetic threats |
KR100790084B1 (ko) * | 2006-08-08 | 2008-01-02 | 삼성전자주식회사 | 블루투스 단말의 거리 측정 방법 및 장치 |
US9563576B1 (en) * | 2006-08-31 | 2017-02-07 | Daniel J. Horon | Area-limited software utility |
US9774086B2 (en) * | 2007-03-02 | 2017-09-26 | Qualcomm Incorporated | Wireless power apparatus and methods |
US8270905B1 (en) * | 2007-10-02 | 2012-09-18 | Plantroncis, Inc. | Near-far sensing using frequency swept RSSI |
US8417296B2 (en) * | 2008-06-05 | 2013-04-09 | Apple Inc. | Electronic device with proximity-based radio power control |
US8432322B2 (en) | 2009-07-17 | 2013-04-30 | Apple Inc. | Electronic devices with capacitive proximity sensors for proximity-based radio-frequency power control |
US8466839B2 (en) * | 2009-07-17 | 2013-06-18 | Apple Inc. | Electronic devices with parasitic antenna resonating elements that reduce near field radiation |
US8781420B2 (en) | 2010-04-13 | 2014-07-15 | Apple Inc. | Adjustable wireless circuitry with antenna-based proximity detector |
US8577289B2 (en) | 2011-02-17 | 2013-11-05 | Apple Inc. | Antenna with integrated proximity sensor for proximity-based radio-frequency power control |
US9093745B2 (en) | 2012-05-10 | 2015-07-28 | Apple Inc. | Antenna and proximity sensor structures having printed circuit and dielectric carrier layers |
US9300342B2 (en) | 2013-04-18 | 2016-03-29 | Apple Inc. | Wireless device with dynamically adjusted maximum transmit powers |
US9379445B2 (en) | 2014-02-14 | 2016-06-28 | Apple Inc. | Electronic device with satellite navigation system slot antennas |
US9398456B2 (en) | 2014-03-07 | 2016-07-19 | Apple Inc. | Electronic device with accessory-based transmit power control |
US9583838B2 (en) | 2014-03-20 | 2017-02-28 | Apple Inc. | Electronic device with indirectly fed slot antennas |
US9559425B2 (en) | 2014-03-20 | 2017-01-31 | Apple Inc. | Electronic device with slot antenna and proximity sensor |
US9728858B2 (en) | 2014-04-24 | 2017-08-08 | Apple Inc. | Electronic devices with hybrid antennas |
US9791490B2 (en) | 2014-06-09 | 2017-10-17 | Apple Inc. | Electronic device having coupler for tapping antenna signals |
US9444425B2 (en) | 2014-06-20 | 2016-09-13 | Apple Inc. | Electronic device with adjustable wireless circuitry |
WO2016084667A1 (ja) * | 2014-11-25 | 2016-06-02 | シャープ株式会社 | 通信装置、表示装置及び通信システム |
US10218052B2 (en) | 2015-05-12 | 2019-02-26 | Apple Inc. | Electronic device with tunable hybrid antennas |
CA3006483A1 (en) * | 2015-11-25 | 2017-06-01 | VHS IP Pty Ltd | Worksite safety device using lidar |
US10490881B2 (en) | 2016-03-10 | 2019-11-26 | Apple Inc. | Tuning circuits for hybrid electronic device antennas |
JP6771955B2 (ja) * | 2016-06-06 | 2020-10-21 | キヤノン株式会社 | 通信装置及びその制御方法、並びにプログラム |
US10290946B2 (en) | 2016-09-23 | 2019-05-14 | Apple Inc. | Hybrid electronic device antennas having parasitic resonating elements |
JP6690609B2 (ja) * | 2017-04-06 | 2020-04-28 | 株式会社村田製作所 | 磁界発生回路 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1257692A (da) * | 1969-07-28 | 1971-12-22 | ||
CA1050140A (en) * | 1975-12-19 | 1979-03-06 | National Research Council Of Canada | Vlf radio position location system |
US4147973A (en) * | 1976-12-20 | 1979-04-03 | Weber Harold J | Frequency dependent amplitude modulated translator apparatus |
US4396918A (en) * | 1981-03-06 | 1983-08-02 | The United States Of America As Represented By The Administrator Of The National Aeronautics & Space Administration | Low-frequency radio navigation system |
DE3719179C1 (en) * | 1987-06-09 | 1988-12-15 | Goetting Kg | Arrangement for determining the separation between vehicles moving one behind the other |
US5218344A (en) * | 1991-07-31 | 1993-06-08 | Ricketts James G | Method and system for monitoring personnel |
US5357253A (en) * | 1993-04-02 | 1994-10-18 | Earth Sounding International | System and method for earth probing with deep subsurface penetration using low frequency electromagnetic signals |
FR2725036A1 (fr) * | 1994-09-22 | 1996-03-29 | Oyo Corp | Emetteur pour systeme de mesure de tomographie electromagnetique et procede de mise en oeuvre |
US5714932A (en) * | 1996-02-27 | 1998-02-03 | Radtronics, Inc. | Radio frequency security system with direction and distance locator |
GB9605335D0 (en) * | 1996-03-13 | 1996-05-15 | Central Research Lab Ltd | Data communication system |
US6134420A (en) * | 1996-11-01 | 2000-10-17 | Plantronics, Inc. | Vector measuring aerial arrays for magnetic induction communication systems |
GB2335323B (en) * | 1998-03-14 | 2002-11-27 | Motorola Ltd | Distance measuring apparatus |
US6269257B1 (en) * | 1999-01-21 | 2001-07-31 | Agere Systems Guardian Corp. | Adaptive paging signal in cordless telephone |
US6396438B1 (en) * | 1999-09-24 | 2002-05-28 | Slc Technologies | System and method for locating radio frequency identification tags using three-phase antenna |
FR2812481B1 (fr) * | 2000-07-31 | 2002-12-13 | Commissariat Energie Atomique | Systeme de localisation a courte distance |
-
2003
- 2003-08-19 GB GBGB0319518.7A patent/GB0319518D0/en not_active Ceased
-
2004
- 2004-08-19 AT AT04768125T patent/ATE364934T1/de active
- 2004-08-19 DE DE602004007013T patent/DE602004007013T2/de active Active
- 2004-08-19 WO PCT/GB2004/003566 patent/WO2005020449A2/en active IP Right Grant
- 2004-08-19 US US10/568,569 patent/US20070188375A1/en not_active Abandoned
- 2004-08-19 DK DK04768125T patent/DK1658681T3/da active
- 2004-08-19 EP EP04768125A patent/EP1658681B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
WO2005020449A3 (en) | 2005-04-21 |
GB0319518D0 (en) | 2003-09-17 |
DE602004007013D1 (de) | 2007-07-26 |
EP1658681A2 (en) | 2006-05-24 |
ATE364934T1 (de) | 2007-07-15 |
EP1658681B1 (en) | 2007-06-13 |
WO2005020449A2 (en) | 2005-03-03 |
DE602004007013T2 (de) | 2008-02-14 |
US20070188375A1 (en) | 2007-08-16 |
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