EP0867971A3 - Magnetic field sensor for a keyless entry system, especially for a motor vehicle - Google Patents
Magnetic field sensor for a keyless entry system, especially for a motor vehicle Download PDFInfo
- Publication number
- EP0867971A3 EP0867971A3 EP98105303A EP98105303A EP0867971A3 EP 0867971 A3 EP0867971 A3 EP 0867971A3 EP 98105303 A EP98105303 A EP 98105303A EP 98105303 A EP98105303 A EP 98105303A EP 0867971 A3 EP0867971 A3 EP 0867971A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnetic field
- field sensor
- entry system
- keyless entry
- motor vehicle
- 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.)
- Granted
Links
Classifications
-
- 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
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
-
- 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
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
- G07C2009/0019—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier having only one limited data transmission rangs
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
- G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
- G07C2009/00777—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by induction
Abstract
Die Erfindung betrifft einen Magnetfeldsensor (2) für ein schlüsselloses Zugangssystem insbesondere bei Kraftfahrzeugen (1), mit dem die Einfallsrichtung einer von einem Sender im Nahfeld ausgestrahlten elektromagnetischen Strahlung detektiert werden kann. Der Magnetfeldsensor (2) besteht aus wenigstens einer ersten (3) und wenigstens einer zweiten Leiterschleife (4), die im wesentlichen konzentrisch zueinander angeordnet und zum Zentrum im wesentlichen symmetrisch aufgebaut sind, wobei vorzugsweise die erste Leiterschleife (3) in ihrem mittigen Abschnitt gekreuzt verläuft. Die Empfangssignale der ersten und zweiten Leiterschleife werden einer Verarbeitungs- und Steuereinheit (5) zugeführt, die eine Betätigungsvorrichtung (6) zum Entriegeln und Verriegeln der Schlösser ansteuert. The invention relates to a magnetic field sensor (2) for a keyless entry system, in particular in motor vehicles (1), with which the direction of incidence of electromagnetic radiation emitted by a transmitter in the near field can be detected. The magnetic field sensor (2) consists of at least one first (3) and at least one second conductor loop (4), which are arranged essentially concentrically to one another and are constructed essentially symmetrically to the center, the first conductor loop (3) preferably being crossed in its central section runs. The received signals of the first and second conductor loops are fed to a processing and control unit (5) which controls an actuating device (6) for unlocking and locking the locks.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712911 | 1997-03-27 | ||
DE19712911A DE19712911C2 (en) | 1997-03-27 | 1997-03-27 | Magnetic field sensor for keyless entry system, particularly in motor vehicles, and use of the magnetic field sensor in a circuit of a motor vehicle |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0867971A2 EP0867971A2 (en) | 1998-09-30 |
EP0867971A3 true EP0867971A3 (en) | 1998-10-07 |
EP0867971B1 EP0867971B1 (en) | 2004-06-02 |
Family
ID=7824808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98105303A Expired - Lifetime EP0867971B1 (en) | 1997-03-27 | 1998-03-24 | Keyless entry system for a motor vehicle with a magnetic field sensor |
Country Status (4)
Country | Link |
---|---|
US (1) | US5940003A (en) |
EP (1) | EP0867971B1 (en) |
JP (1) | JPH1123682A (en) |
DE (2) | DE19712911C2 (en) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6138050A (en) * | 1997-09-17 | 2000-10-24 | Logitech, Inc. | Antenna system and apparatus for radio-frequency wireless keyboard |
FR2786030B1 (en) * | 1998-11-16 | 2001-09-07 | Valeo Securite Habitacle | AUTOMOTIVE VEHICLE EQUIPPED WITH AN IDENTIFIER DEVICE PROVIDING CONTROL OF VEHICLE OPERATING DEVICES WHEN AN IDENTIFIER IS DETECTED IN A PREDETERMINED SPACE |
DE10014302A1 (en) * | 2000-03-23 | 2001-10-04 | Infineon Technologies Ag | Antenna conductor arrangement for Ident system has figure-eight shape with spaced apart sections at intersection point |
US6356243B1 (en) * | 2000-07-19 | 2002-03-12 | Logitech Europe S.A. | Three-dimensional geometric space loop antenna |
DE60107512T2 (en) * | 2000-09-19 | 2005-12-15 | Land Rover, Lighthorne | security system |
DE10046897B4 (en) * | 2000-09-21 | 2004-02-05 | Siemens Ag | Transmitting and receiving methods, in particular for detecting an ID transmitter |
JP3587185B2 (en) | 2001-09-28 | 2004-11-10 | オムロン株式会社 | Inductive wireless antenna and non-contact data communication device using the same |
DE10159604A1 (en) * | 2001-12-05 | 2003-06-12 | Atmel Germany Gmbh | Method for detecting a forwarding in a contactless data transmission |
US6724322B2 (en) | 2001-12-21 | 2004-04-20 | Lear Corporation | Remote system for providing vehicle information to a user |
DE10309600A1 (en) * | 2003-03-05 | 2004-09-16 | Delphi Technologies, Inc., Troy | security system |
US7463987B2 (en) * | 2003-09-19 | 2008-12-09 | Takata Holdings, Inc. | Magnetic sensing system and method |
JP2007510134A (en) * | 2003-09-19 | 2007-04-19 | オートモーティブ システムズ ラボラトリー インコーポレーテッド | Magnetic collision detection method |
DE102005013910B3 (en) | 2005-03-24 | 2006-09-28 | Siemens Ag | Method for a start and access system for a motor vehicle |
EP1915585A2 (en) | 2005-07-29 | 2008-04-30 | Automotive Systems Laboratory Inc. | Magnetic crash sensor |
ES2851149T3 (en) * | 2005-09-12 | 2021-09-03 | Sato Holdings Corp | Antenna design and interrogator system |
KR101901366B1 (en) | 2014-06-24 | 2018-09-21 | 구글 엘엘씨 | Magnetic controller for device control |
DE102015213806A1 (en) | 2015-07-22 | 2017-01-26 | Volkswagen Aktiengesellschaft | Position determination with a magnetic field sensor for a vehicle |
DE102015016553A1 (en) * | 2015-12-18 | 2017-06-22 | Bayerische Motoren Werke Aktiengesellschaft | Authorization of the use of a motor vehicle |
DE102015016558A1 (en) | 2015-12-18 | 2017-06-22 | Bayerische Motoren Werke Aktiengesellschaft | Authorization of the use of a motor vehicle |
DE102015016552A1 (en) * | 2015-12-18 | 2017-06-22 | Bayerische Motoren Werke Aktiengesellschaft | Authorization of the use of a motor vehicle |
DE102015016557A1 (en) * | 2015-12-18 | 2017-06-22 | Bayerische Motoren Werke Aktiengesellschaft | Authorization of the use of a motor vehicle |
DE102016204746A1 (en) * | 2016-03-22 | 2017-09-28 | Bayerische Motoren Werke Aktiengesellschaft | Authorization of the use of a motor vehicle |
DE102016204748A1 (en) * | 2016-03-22 | 2017-09-28 | Bayerische Motoren Werke Aktiengesellschaft | Authorization of the use of a motor vehicle |
DE102016204749A1 (en) * | 2016-03-22 | 2017-09-28 | Bayerische Motoren Werke Aktiengesellschaft | Authorization of the use of a motor vehicle |
DE102016204750A1 (en) | 2016-03-22 | 2017-09-28 | Bayerische Motoren Werke Aktiengesellschaft | Authorization of the use of a motor vehicle |
DE102016111707B4 (en) | 2016-06-27 | 2019-08-14 | Volkswagen Aktiengesellschaft | Method and system for detecting a relative position of a mobile terminal with respect to a vehicle |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3820248A1 (en) * | 1987-06-16 | 1989-01-05 | Nissan Motor | Keyless actuating system for a vehicle-locking device |
US4816765A (en) * | 1986-11-27 | 1989-03-28 | U.S. Philips Corporation | Magnetic resonance imaging apparatus comprising a quadrature coil system |
US4873530A (en) * | 1985-09-30 | 1989-10-10 | Nissan Motor Co., Ltd. | Antenna device in automotive keyless entry system |
US4973958A (en) * | 1985-02-21 | 1990-11-27 | Nissan Motor Company, Limited | Keyless entry system for automotive devices antenna device allowing low power radio signal communication |
US5293160A (en) * | 1989-11-02 | 1994-03-08 | Nissan Motor Company, Ltd. | Keyless vehicle lock system with distance measuring |
DE4232827A1 (en) * | 1992-09-30 | 1994-03-31 | Siemens Ag | Circularly polarised local antenna arrangement for nuclear spin tomography appts. - has array of three or more linearly polarised coils overlapped to achieve geometric decoupling. |
US5594448A (en) * | 1993-10-22 | 1997-01-14 | Texas Instruments Incorporated | Highly accurate RF-ID positioning system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58139010A (en) * | 1982-02-15 | 1983-08-18 | Nissan Motor Co Ltd | Running guidance device for vehicle |
DE4005079A1 (en) * | 1990-02-17 | 1991-08-22 | Dornier Gmbh | Magnetic field gradient tensor measurement - uses five or more planar gradiometers on three or more non-parallel surfaces |
US5099247A (en) * | 1990-12-14 | 1992-03-24 | General Electric Company | Electronic steering of pattern of an antenna system |
US5519318A (en) * | 1992-12-28 | 1996-05-21 | The United States Of America As Represented By The Secretary Of The Navy | Triaxial magnetic heading sensing apparatus having magnetaresistors and nulling coils |
US5459395A (en) * | 1993-07-06 | 1995-10-17 | General Electric Company | Reduced flux current sensor |
US5532709A (en) * | 1994-11-02 | 1996-07-02 | Ford Motor Company | Directional antenna for vehicle entry system |
-
1997
- 1997-03-27 DE DE19712911A patent/DE19712911C2/en not_active Expired - Fee Related
-
1998
- 1998-03-24 EP EP98105303A patent/EP0867971B1/en not_active Expired - Lifetime
- 1998-03-24 DE DE59811489T patent/DE59811489D1/en not_active Expired - Fee Related
- 1998-03-26 US US09/048,483 patent/US5940003A/en not_active Expired - Fee Related
- 1998-03-27 JP JP10100093A patent/JPH1123682A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4973958A (en) * | 1985-02-21 | 1990-11-27 | Nissan Motor Company, Limited | Keyless entry system for automotive devices antenna device allowing low power radio signal communication |
US4873530A (en) * | 1985-09-30 | 1989-10-10 | Nissan Motor Co., Ltd. | Antenna device in automotive keyless entry system |
US4816765A (en) * | 1986-11-27 | 1989-03-28 | U.S. Philips Corporation | Magnetic resonance imaging apparatus comprising a quadrature coil system |
DE3820248A1 (en) * | 1987-06-16 | 1989-01-05 | Nissan Motor | Keyless actuating system for a vehicle-locking device |
US5293160A (en) * | 1989-11-02 | 1994-03-08 | Nissan Motor Company, Ltd. | Keyless vehicle lock system with distance measuring |
DE4232827A1 (en) * | 1992-09-30 | 1994-03-31 | Siemens Ag | Circularly polarised local antenna arrangement for nuclear spin tomography appts. - has array of three or more linearly polarised coils overlapped to achieve geometric decoupling. |
US5594448A (en) * | 1993-10-22 | 1997-01-14 | Texas Instruments Incorporated | Highly accurate RF-ID positioning system |
Also Published As
Publication number | Publication date |
---|---|
DE19712911A1 (en) | 1998-10-08 |
EP0867971B1 (en) | 2004-06-02 |
JPH1123682A (en) | 1999-01-29 |
DE19712911C2 (en) | 2001-09-13 |
DE59811489D1 (en) | 2004-07-08 |
EP0867971A2 (en) | 1998-09-30 |
US5940003A (en) | 1999-08-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0867971A3 (en) | Magnetic field sensor for a keyless entry system, especially for a motor vehicle | |
DE69818692T2 (en) | PASSENGER WEIGHT SENSOR | |
DE112005000787B4 (en) | Seat sensor system | |
DE102005013910B3 (en) | Method for a start and access system for a motor vehicle | |
DE102007027730B4 (en) | Vehicle control system | |
WO1998052786A1 (en) | Matting with a heatable wire for a car seat heating system and car seat having such a matting | |
DE10026444C2 (en) | Seat belt system with a measuring arrangement for determining the webbing force | |
DE10058978A1 (en) | Seat belt lock has a magnet which is moved by the insertion/removal of the seat belt tab to generate different fields for detection by a sensor to show if the belt is locked or released | |
DE19724344C1 (en) | In-use recognition device for front passenger seat in motor vehicle | |
DE19919158A1 (en) | Wireless switch detection system for automobile door or seat belt switch | |
EP0814002B1 (en) | Method to connect a control unit with a state detection device in a passive safety system of a motor vehicle | |
EP1081316A1 (en) | Position detection for a radio key | |
EP0866971A1 (en) | Motor vehicle sensor arrangement for detecting an impact | |
EP3694751B1 (en) | Buckle system | |
DE102006036861B4 (en) | Passenger protection system | |
DE19526619C2 (en) | Motor vehicle with occupant protection systems and device for controlling them | |
DE10211564B4 (en) | Device for measuring a tension acting on a vehicle component, in particular on a vehicle seat belt | |
EP1467894B1 (en) | Device for occupant classification and method for occupant classification | |
DE202005020592U1 (en) | Seat belt system for motor vehicle has measuring device is positioned with respect to belt in such a manner, that it is arranged in belt proceeding direction behind belt retractor | |
EP1407945A2 (en) | Magnetic position sensor | |
DE102005021377A1 (en) | Motor vehicle locking system and method for obtaining access to a motor vehicle by means of such a system | |
EP1191487A3 (en) | Locking system, in particular for a vehicle | |
DE112020005983T5 (en) | relay attack detection facility | |
DE102005009486B4 (en) | Safety belt system for a motor vehicle | |
WO2006131009A1 (en) | Belt buckle mechanism with status sensor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
17P | Request for examination filed |
Effective date: 19990407 |
|
AKX | Designation fees paid |
Free format text: DE FR GB |
|
17Q | First examination report despatched |
Effective date: 19990602 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RTI1 | Title (correction) |
Free format text: KEYLESS ENTRY SYSTEM FOR A MOTOR VEHICLE WITH A MAGNETIC FIELD SENSOR |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: FORD GLOBAL TECHNOLOGIES, LLC |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59811489 Country of ref document: DE Date of ref document: 20040708 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040825 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20050303 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080211 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20080307 Year of fee payment: 11 Ref country code: DE Payment date: 20080331 Year of fee payment: 11 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090324 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20091130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090324 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091123 |