EP0805507B1 - Dispositif de réception et/ou d'émission de messages radio-diffusés portatif comportant une antenne inductive et capacitive - Google Patents
Dispositif de réception et/ou d'émission de messages radio-diffusés portatif comportant une antenne inductive et capacitive Download PDFInfo
- Publication number
- EP0805507B1 EP0805507B1 EP97106490A EP97106490A EP0805507B1 EP 0805507 B1 EP0805507 B1 EP 0805507B1 EP 97106490 A EP97106490 A EP 97106490A EP 97106490 A EP97106490 A EP 97106490A EP 0805507 B1 EP0805507 B1 EP 0805507B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- plates
- coil
- magnetic component
- electromagnetic field
- 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
- 230000001939 inductive effect Effects 0.000 title description 5
- 230000005672 electromagnetic field Effects 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 abstract 1
- -1 resistors Substances 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 description 5
- 210000000707 wrist Anatomy 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
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
- H01Q1/273—Adaptation for carrying or wearing by persons or animals
Definitions
- the present invention relates to a device for reception and / or transmission of radio broadcast messages portable which includes an antenna capable of picking up a field electromagnetic carrying radio messages.
- the first element of the antenna forms, on the one hand, with the second conductive element a capacitive doublet sensitive to an electrical component of the field electromagnetic carrying broadcast radio messages.
- the first element makes it possible to form a loop sensitive to a magnetic component of the field electromagnetic. So we can say that the antenna has a mixed electrical and magnetic aspect because it is sensitive to both electrical components and magnetic field of the electromagnetic field.
- the two conductive elements are arranged in planes parallel to the dial of the case. Therefore, the loop formed by the first element captures the component radial magnetic of the electromagnetic field with respect on the user's wrist and the capacitive doublet formed by the two conductive elements picks up the component electric radial of the electromagnetic field with respect on the user's wrist.
- the object of the present invention is a device for reception of portable radio messages which remedies at least in part to these disadvantages.
- Another object of the invention is a device for reception of portable radio broadcast messages including antenna gain / bandwidth product is optimized.
- Another object of the invention is a device for reception of portable radio messages which allows regular behavior as a function of the frequency of electromagnetic field received.
- the object of the invention is a device for reception of portable radio messages which includes a single antenna and whose construction is simple and space-saving.
- the subject of the invention is therefore a device for reception and / or transmission of radio broadcast messages portable intended to be worn on a part of the body having the shape of a cylinder such as the arm or the trunk of this body.
- the device comprises a housing, a antenna capable of picking up both a magnetic component and an electrical component of an electromagnetic field carrier of broadcast radio messages, and a micro-receiver receiving messages received by the antenna.
- the antenna has two conductive plates arranged so as to capture the radial electric component of the field electromagnetic with respect to the body.
- the antenna is formed by a coil comprising a coil arranged in the case to pick up the azimuthal magnetic component of the electromagnetic field around said part of the body.
- the plates are part of the coil.
- the present invention makes it possible to make a device for receiving radio broadcast messages portable whose antenna picks up the components electric radial and azimuthal magnetic of a field electromagnetic, which, on the one hand, increases the antenna performance and, on the other hand, makes the antenna less sensitive to variations in field frequency electromagnetic sensed.
- a capacitive antenna is in the form of two electrodes separated by a dielectric and an inductive antenna in the form of a coil.
- dielectric it should be understood here a insulating material separating the two electrodes, this matter can also be air.
- the polarization of the electrical component captured from the incident field is perpendicular to the electrodes of the capacitive antenna while the polarization of the magnetic component received from the incident field is parallel to the axis of the inductive antenna coil.
- the present invention relates to a device of reception intended to be worn on a part of the body of a user, it is important to know the influence of this body on the configuration of the field electromagnetic.
- the amplitude and the direction of the electromagnetic field are strongly modified in the vicinity of the body, this being due mainly to the fact that the dielectric properties of human body are very different from air.
- Figure 1 shows a forearm 1 of a user wearing a receiving device according to the invention which is in the form of a wristwatch 4 comprising a case 2 and a strap 3.
- a case 2 act the two predominant components E r (radial electrical components) and H ⁇ (azimuthal magnetic component).
- Figure 2 shows a human figure carrying a portable receiving device 5 comprising a housing 6 attached to a belt 7. On this portable receiving device 5 also act the radial electrical component E r and the azimuthal magnetic component H ⁇ of a field electromagnetic carrying radio broadcast messages.
- FIG. 3 there is a schematic view of a portable receiving device 10 according to the invention which comprises a housing 11, a single antenna 12 adapted to receive both the azimuthal magnetic components H ⁇ and electrical radial E r of an electromagnetic field carrying broadcast radio messages and a microreceptor 13 receiving the messages picked up by the antenna to transform these messages into data perceptible by the user of the portable reception device.
- the latter is carried by the user so that the housing is close to its body 14.
- the antenna 12 comprises two conductive plates 15 and 16 placed substantially parallel to one another and separated by air or any other dielectric.
- the plates 15 and 16 are arranged in the housing 11 to capture the radial electrical component E r of the electromagnetic field with respect to the body 14.
- the plates 15 and 16 are preferably mounted in the housing 11 so that they are substantially parallel to the surface of the user's skin in front of the portable receiving device when the latter is worn by the user.
- the antenna 12 is constituted by a coil 17 comprising, in this example, a single turn disposed in the housing 11 for picking up the azimuthal magnetic component H ⁇ of the electromagnetic field around the body 14.
- the antenna is mounted in the housing 11 so that the longitudinal axis of the coil is substantially perpendicular to the surface of the user's skin in front of the portable receiving device, and arranged perpendicular to the longitudinal axis of the cylindrical part of the body in question, when this device is worn by the user.
- the plates 15 and 16 form part of the coil 17.
- the portable reception device 10 comprises a single antenna 12 which takes advantage of two predominant components of the electromagnetic field carrying radio broadcast messages, namely the radial electrical component E r and the azimuthal magnetic component H ⁇ . By allowing the use of these two components at the same time, the efficiency of the antenna is increased.
- the plates 15 and 16 include connection zones 21 to 24 through which they are connected to the remaining part of the coil 17.
- the zones connection points 21 and 22 are arranged in places diametrically opposed on the plate 15.
- the connection zones 23 and 24 are arranged at the locations diametrically opposed on the plate 16.
- the connection areas 21 to 24 are arranged in a periphery region of the plates 15 and 16. The resulting arrangement is simple, efficient and allows to form an antenna which has dimensions electromagnetic in relation to dimensions body 11.
- the coil 17 is preferably arranged in the housing so that its longitudinal axis is substantially parallel to the azimuthal magnetic component H ⁇ when said device is worn by a user.
- the two conductive plates are arranged so that they are substantially perpendicular to the radial electrical component E r when said device is worn by the user.
- the portable reception device is well suited to various applications in all frequency bands because the antenna has very little practical limitation of minimum or maximum frequency. Indeed, even under the hypothesis of a reduction in the effect of the human body for the azimuthal magnetic component H ⁇ at low frequency, there is no corresponding frequency limitation for the radial electrical component E r , even at a frequency of 0 Hz.
- the microreceptor 13 receives the messages picked up by the antenna to transform these messages into data noticeable by the user.
- the microreceptor 13 has an adaptation circuit and agree 18 which, in known manner, makes it possible to complete the tuning of the resonant circuit which constitutes the antenna 12 and adjust if necessary the resonant frequency of it.
- the antenna 12 can easily be adapted so that it works as a broadband antenna in a desired frequency range. To do this, it suffices that the matching and tuning circuit 18 is set so that the narrow band around the resonant frequency of the antenna is set outside of this desired frequency range. Thus, the antenna may have regular behavior as a function of the frequency in this frequency range.
- the antenna can also be used like a resonant antenna by adjusting the circuit adaptation and agree 18 so that the frequency of antenna resonance be brought in the range of desired frequency.
- Each of the charging circuits Z1 and Z2 can be consisting simply of a conductive element to minimum resistance forming the remaining part of the coil 18, and / or by resistive, capacitive elements and / or inductive, such as, for example, the circuit adaptation and agreement 18 which constitutes the circuit of load Z1 in the antenna 12 shown in FIG. 3.
- Each load circuits Z1 and Z2 can even be constituted by a short circuit or an open circuit.
- a current i is induced in the coil 17 by the azimuthal magnetic component H ⁇ (leaving the page in Figure 3) of the electromagnetic field picked up by the coil 12.
- the current i rotates in the direction counterclockwise. This results in a positive induced voltage V H1 through the charge circuit Z1 and a negative induced voltage V H2 through the charge circuit Z2.
- FIG 4 shows an embodiment of the plates conductors 15 and 16 as well as the microreceptor 13 of the figure 3.
- Each of the two plates can have one or several openings, such as the central opening 20.
- the plate 15 is arranged in the upper part of the housing 11 of the portable receiving device 10 while that the plate 16, for its part, is arranged in the lower part of the housing 11.
- the Figure 5 shows a sectional view of a portable reception in the form of a wristwatch 30.
- the latter comprises a dial 40 and a movement 41 housed in a housing 42.
- the antenna arranged in this watch 30 has a first conductive plate 31 and a second conductive plate 32.
- the upper plate 31 has the same shape as that shown in Figure 4 so that it is hidden from view by a annular part 43 of the housing 42.
- the plate 31 shown at Figure 5 consists of a metallization ice peripheral 33.
- the plate 32 can be a metallic bottom which is entirely metallic or, as shown in figure 5, a metal sheet affixed to a background 34 of material plastic.
- plates 31 and 32 can be mounted in the receiving device 30 according to several variants.
- at least one of the plates could also be deposited on the dial or any other element from the portable receiving device 30 or it could even constitute this element itself.
- At least one of plates could also be embedded in the bottom of the box 42 or in any other part of the device portable reception 30.
- plates 31 and 32 can be produced according to several variants.
- at least one of plates could consist of a metallic deposit, by a conductive element produced separately or by a wire rack.
- the plates 31 and 32 are supported on a middle part 44 made of insulating material. Plates 31 and 32 are connected to the input of the microreceptor 18 which is mounted in the housing 42 between the dial 33 and the bottom 34.
- Figure 6 shows a sectional view of a second embodiment of a portable receiving device in the form of a wristwatch 50.
- the latter comprises the dial 40, the movement 41 and the microreceptor 13, shown in Figure 5, which are housed in a housing 51.
- the antenna has two conductive plates which are not not necessarily planar, i.e. a first plate conductive 52 and a second conductive plate 53 which constitute respectively an upper part and a lower part of the housing 51.
- the plates 52 and 53 are separated by an annular disc 54 made of material insulating.
- This arrangement makes it possible to increase the yield of the antenna because the plates 52 and 53 have a surface maximum in relation to the dimensions of the portable reception 50 itself.
- the two plates 52 and 53 constitute parts of the housing 51.
- only one of the plates could be formed by a part of the housing in another embodiment.
- the embodiments described above mainly concern a device portable reception in the form of a wristwatch
- the principle of this antenna can also be used for other watchmaking applications or for devices conventional portable reception systems.
Landscapes
- Details Of Aerials (AREA)
- Electric Clocks (AREA)
- Support Of Aerials (AREA)
- Burglar Alarm Systems (AREA)
- Near-Field Transmission Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Transmitters (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Transceivers (AREA)
Description
- la figure 1 est une vue schématique d'un poignet d'un utilisateur portant un mode de réalisation d'un dispositif de réception portatif selon la présente invention;
- la figure 2 montre une figure humaine portant un autre mode de réalisation d'un dispositif de réception portatif selon la présente invention;
- la figure 3 est une vue schématique du dispositif de réception portatif de la figure 1;
- la figure 4 est une vue en perspective d'un détail du dispositif de réception portatif de la figure 3;
- la figure 5 est une vue en coupe d'un mode de réalisation du dispositif de réception portatif selon l'invention qui se présente sous forme d'une montre-bracelet, et
- la figure 6 est une vue en coupe d'un autre mode de réalisation du dispositif de réception portatif selon l'invention qui se présente sous forme d'une montre-bracelet.
Claims (7)
- Dispositif de réception et/ou d'émission de messages radio-diffusés portatif destiné à être porté sur une partie du corps présentant la forme d'un cylindre tel que le bras ou le tronc de ce corps, ledit dispositif comportant :un boítier (11; 42; 51),une antenne (12; 31, 32; 52, 53) apte à capter à la fois une composante magnétique et une composante électrique d'un champ électromagnétique porteur de messages radio diffusés, etun microrécepteur (13) recevant les messages captés par l'antenne,
caractérisée en ce que ladite antenne (12; 31, 32; 52, 53) est formée par une bobine (17) comportant une spire disposée dans ledit boítier (11; 42; 51) pour capter la composante magnétique azimutale (HΦ) dudit champ électromagnétique autour de ladite partie du corps, et en ce que lesdites plaques (15, 16; 31, 32; 52, 53) font partie de ladite bobine (17). - Dispositif selon la revendication 1, caractérisée en ce que chacune desdites plaques (15, 16; 31, 32; 52, 53) comporte des zones de connexion (21-24) diamétralement opposées et par lesquelles elle est connectée à la partie restante de ladite bobine (17).
- Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que lesdites zones de connexion (21-24) sont disposées dans une région périphérie desdites plaques (15, 16; 31, 32; 52, 53).
- Dispositif selon l'une quelconque des revendications précédentes, caractérisée en ce que ladite bobine (17) est disposée dans ledit boítier (11; 42; 51) de manière que son axe longitudinale est sensiblement parallèle à ladite composante magnétique azimutale (HΦ) lorsque ledit dispositif est porté.
- Dispositif selon l'une quelconque des revendications précédentes, caractérisée en ce que ladite antenne comporte en outre au moins un circuit de charge (Z1, Z2) qui relie lesdites plaques, et en ce que ledit microrécepteur (13) est relié à ladite bobine (17) à travers ledit circuit de charge (Z1) à travers lequel des tensions induites (VH1, VH2, VE1, VE2) par lesdites composantes magnétique azimutale (HΦ) et électrique radiale (Er) s'additionnent.
- Dispositif selon l'une quelconque des revendications précédentes, ledit dispositif étant destiné à capter des champs électromagnétiques dans une gamme de fréquence déterminée, caractérisé en ce que ledit microrécepteur comporte un circuit d'adaptation et d'accord (18) réglé de manière qu'une bande étroite autour de la fréquence de résonance de l'antenne (12) soit mise hors de cette gamme de fréquence déterminée.
- Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il se présente sous la forme d'une montre-bracelet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9605571A FR2748360B1 (fr) | 1996-05-03 | 1996-05-03 | Dispositif de reception et/ou d'emission de messages radio-diffuses portatif comportant une antenne inductive et capacitive |
FR9605571 | 1996-05-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0805507A1 EP0805507A1 (fr) | 1997-11-05 |
EP0805507B1 true EP0805507B1 (fr) | 2002-07-24 |
Family
ID=9491816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97106490A Expired - Lifetime EP0805507B1 (fr) | 1996-05-03 | 1997-04-18 | Dispositif de réception et/ou d'émission de messages radio-diffusés portatif comportant une antenne inductive et capacitive |
Country Status (13)
Country | Link |
---|---|
US (1) | US5907522A (fr) |
EP (1) | EP0805507B1 (fr) |
JP (1) | JPH1056312A (fr) |
KR (1) | KR970077817A (fr) |
CN (1) | CN1108689C (fr) |
AT (1) | ATE221261T1 (fr) |
AU (1) | AU715114B2 (fr) |
CA (1) | CA2203976A1 (fr) |
DE (1) | DE69714132T2 (fr) |
FR (1) | FR2748360B1 (fr) |
HK (1) | HK1010293A1 (fr) |
SG (1) | SG54494A1 (fr) |
TW (1) | TW333717B (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6448886B2 (en) | 1998-08-14 | 2002-09-10 | 3M Innovative Properties Company | Application for radio frequency identification systems |
US6600420B2 (en) | 1998-08-14 | 2003-07-29 | 3M Innovative Properties Company | Application for a radio frequency identification system |
US6646554B1 (en) | 1998-06-08 | 2003-11-11 | 3M Innovative Properties Company | Identification tag with enhanced security |
US8006902B2 (en) | 1998-08-14 | 2011-08-30 | 3M Innovative Properties Company | Radio frequency identification systems applications |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0974878A1 (fr) * | 1998-07-20 | 2000-01-26 | Asulab S.A. | Sous-ensemble combinant une antenne et des capteurs de position sur un même support, notamment pour pièce d'horlogerie |
US6424262B2 (en) | 1998-08-14 | 2002-07-23 | 3M Innovative Properties Company | Applications for radio frequency identification systems |
US6239715B1 (en) * | 1999-07-21 | 2001-05-29 | Karen L. Belton | Beeper system |
WO2001024309A1 (fr) * | 1999-09-28 | 2001-04-05 | Seiko Epson Corporation | Antenne pour radio haute frequence, appareil radio haute frequence et appareil radio haute frequence de type montre |
JP2001195368A (ja) * | 1999-11-01 | 2001-07-19 | Sony Corp | 認証情報通信システムおよび認証情報通信方法、携帯情報処理装置、並びにプログラム提供媒体 |
AU775802B2 (en) * | 2000-01-13 | 2004-08-19 | Phonak Ag | Hearing aid remote control and a hearing aid with a remote control of this type |
US8157610B1 (en) | 2000-04-11 | 2012-04-17 | Disney Enterprises, Inc. | Location-sensitive toy and method therefor |
US20040069851A1 (en) * | 2001-03-13 | 2004-04-15 | Grunes Mitchell B. | Radio frequency identification reader with removable media |
CN100373807C (zh) * | 2004-08-09 | 2008-03-05 | 电子科技大学 | 一种无线通信终端可穿戴式分集天线装置 |
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 |
US20090197551A1 (en) * | 2008-02-05 | 2009-08-06 | Paper Radio Llc | Billboard Receiver and Localized Broadcast System |
US20090289855A1 (en) * | 2008-05-23 | 2009-11-26 | Sony Ericsson Mobile Communications Ab | Methods and Apparatus for Providing an Integrated Inverted Loop Antenna in a Wireless Device |
JP5854856B2 (ja) * | 2012-01-24 | 2016-02-09 | 三菱電機株式会社 | プラント運転装置及びプラント運転訓練シミュレータ装置 |
US10015604B2 (en) | 2014-05-05 | 2018-07-03 | Nxp B.V. | Electromagnetic induction field communication |
US9819395B2 (en) * | 2014-05-05 | 2017-11-14 | Nxp B.V. | Apparatus and method for wireless body communication |
US9812788B2 (en) | 2014-11-24 | 2017-11-07 | Nxp B.V. | Electromagnetic field induction for inter-body and transverse body communication |
US10009069B2 (en) * | 2014-05-05 | 2018-06-26 | Nxp B.V. | Wireless power delivery and data link |
US10014578B2 (en) * | 2014-05-05 | 2018-07-03 | Nxp B.V. | Body antenna system |
US9819075B2 (en) * | 2014-05-05 | 2017-11-14 | Nxp B.V. | Body communication antenna |
JP6668627B2 (ja) * | 2015-07-16 | 2020-03-18 | カシオ計算機株式会社 | アンテナおよび時計 |
EP3342042B1 (fr) * | 2015-08-24 | 2022-04-13 | The Regents of The University of California | Réseau de zone corporelle à champ magnétique de faible puissance |
US9819097B2 (en) | 2015-08-26 | 2017-11-14 | Nxp B.V. | Antenna system |
US10320086B2 (en) | 2016-05-04 | 2019-06-11 | Nxp B.V. | Near-field electromagnetic induction (NFEMI) antenna |
CN109390675A (zh) * | 2017-08-03 | 2019-02-26 | 泰科电子(上海)有限公司 | 天线、发射装置、接收装置和无线通信系统 |
JP2019158445A (ja) * | 2018-03-09 | 2019-09-19 | セイコーエプソン株式会社 | 電子機器 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2621179B1 (fr) * | 1987-09-25 | 1990-01-19 | Alcatel Thomson Radiotelephone | Antenne pour recepteur miniature notamment pour recepteur en forme de boitier de montre |
CH672870B5 (fr) * | 1988-04-26 | 1990-07-13 | Ebauchesfabrik Eta Ag | |
US5450091A (en) * | 1988-08-05 | 1995-09-12 | Seiko Epson Corporation | Variable size antenna device having resonance frequency compensation |
JPH03265305A (ja) * | 1990-03-15 | 1991-11-26 | Fuji Electric Co Ltd | 複同調アンテナとそのアンテナを有する信号発生器 |
US5317326A (en) * | 1991-06-03 | 1994-05-31 | Motorola, Inc. | Folded dipole antenna |
JPH06112714A (ja) * | 1992-09-30 | 1994-04-22 | Casio Comput Co Ltd | ウオッチ型無線受信機 |
GB2276274B (en) * | 1993-03-17 | 1997-10-22 | Seiko Epson Corp | Slot antenna device |
JPH07140270A (ja) * | 1993-11-16 | 1995-06-02 | Casio Comput Co Ltd | ウォッチ型無線受信機 |
DE69520351T2 (de) * | 1995-05-05 | 2001-10-11 | Eta S A Fabriques D Ebauches G | Antennenstruktur für eine Uhr |
FR2739200B1 (fr) * | 1995-09-26 | 1997-10-31 | Asulab Sa | Piece d'horlogerie comportant une antenne |
-
1996
- 1996-05-03 FR FR9605571A patent/FR2748360B1/fr not_active Expired - Fee Related
-
1997
- 1997-04-11 KR KR1019970013345A patent/KR970077817A/ko active IP Right Grant
- 1997-04-11 AU AU17857/97A patent/AU715114B2/en not_active Ceased
- 1997-04-16 SG SG1997001225A patent/SG54494A1/en unknown
- 1997-04-18 AT AT97106490T patent/ATE221261T1/de not_active IP Right Cessation
- 1997-04-18 EP EP97106490A patent/EP0805507B1/fr not_active Expired - Lifetime
- 1997-04-18 DE DE69714132T patent/DE69714132T2/de not_active Expired - Fee Related
- 1997-04-24 TW TW086105349A patent/TW333717B/zh active
- 1997-04-24 US US08/840,013 patent/US5907522A/en not_active Expired - Fee Related
- 1997-04-29 CA CA002203976A patent/CA2203976A1/fr not_active Abandoned
- 1997-05-04 CN CN97111122A patent/CN1108689C/zh not_active Expired - Fee Related
- 1997-05-06 JP JP9130549A patent/JPH1056312A/ja active Pending
-
1998
- 1998-10-09 HK HK98111165A patent/HK1010293A1/xx not_active IP Right Cessation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6646554B1 (en) | 1998-06-08 | 2003-11-11 | 3M Innovative Properties Company | Identification tag with enhanced security |
US6448886B2 (en) | 1998-08-14 | 2002-09-10 | 3M Innovative Properties Company | Application for radio frequency identification systems |
US6486780B1 (en) | 1998-08-14 | 2002-11-26 | 3M Innovative Properties Company | Applications for radio frequency identification systems |
US6600420B2 (en) | 1998-08-14 | 2003-07-29 | 3M Innovative Properties Company | Application for a radio frequency identification system |
US6768419B2 (en) | 1998-08-14 | 2004-07-27 | 3M Innovative Properties Company | Applications for radio frequency identification systems |
US8006902B2 (en) | 1998-08-14 | 2011-08-30 | 3M Innovative Properties Company | Radio frequency identification systems applications |
Also Published As
Publication number | Publication date |
---|---|
JPH1056312A (ja) | 1998-02-24 |
FR2748360A1 (fr) | 1997-11-07 |
DE69714132T2 (de) | 2003-03-27 |
SG54494A1 (en) | 1998-11-16 |
AU715114B2 (en) | 2000-01-20 |
CA2203976A1 (fr) | 1997-11-03 |
DE69714132D1 (de) | 2002-08-29 |
HK1010293A1 (en) | 1999-06-17 |
US5907522A (en) | 1999-05-25 |
CN1108689C (zh) | 2003-05-14 |
ATE221261T1 (de) | 2002-08-15 |
FR2748360B1 (fr) | 1998-06-26 |
KR970077817A (ko) | 1997-12-12 |
TW333717B (en) | 1998-06-11 |
EP0805507A1 (fr) | 1997-11-05 |
CN1179663A (zh) | 1998-04-22 |
AU1785797A (en) | 1997-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0805507B1 (fr) | Dispositif de réception et/ou d'émission de messages radio-diffusés portatif comportant une antenne inductive et capacitive | |
EP0339482B1 (fr) | Pièce d'horlogerie comportant une antenne | |
EP0766152A1 (fr) | Pièce d'horlogerie comportant une antenne | |
EP1513220B1 (fr) | Antenne patch intégrée dans une montre bracelet | |
WO1994023648A1 (fr) | Dispositif capteur pour electrocardiogramme | |
FR2724274A1 (fr) | Antenne cadre, insensible a l'effet capacitif, et dispositif emetteur recepteur comportant une telle antenne | |
EP0662666B1 (fr) | Système pour l'identification sans contact d'objets, notamment d'objets métalliques | |
EP2842081A1 (fr) | Dispositif de radio identification | |
FR3013069A1 (fr) | Poignee de portiere de vehicule comprenant une antenne de communication en champ proche | |
EP0312792B1 (fr) | Antenne pour récepteur miniature notamment pour récepteur en forme de boitier de montre | |
EP0172445A1 (fr) | Transpondeur passif, notamment pour la recherche de personnes victimes d'une avalanche | |
EP3724679B1 (fr) | Detecteur double technologie a bobines transverses | |
EP0649110B1 (fr) | Dispositif à pureté spectrale pour l'échange d'informations à distance entre un objet portatif et une station | |
EP1765610A1 (fr) | Passage de roue de véhicule automobile comprenant un circuit électrique et ensemble d'un passage de roue et de moyens d'alimentation | |
WO2021110309A1 (fr) | Dispositif de communication en champ proche a haute frequence et de rechargement par induction d'un appareil electronique portable | |
FR2967537A1 (fr) | Antenne compacte adaptable en impedance | |
EP4092493A1 (fr) | Montre comportant un dispositif de communication en champs proche | |
WO2019238696A1 (fr) | Dispositif de communication en champ proche a haute frequence et de rechargement par induction d'un appareil electronique portable | |
EP3433938A1 (fr) | Objet portable et son antenne nfc | |
WO2003107267A1 (fr) | Antenne pour etiquette electronique | |
EP0578561B1 (fr) | Récepteur du type à antenne intérieure en ferrite | |
EP1801914A1 (fr) | Antenne et système de verrouillage/déverrouillage à distance comportant une telle antenne. | |
FR2937451A1 (fr) | Dispositif domotique d'emission et/ou de reception de signaux radioelectriques. | |
FR2644308A1 (fr) | Dispositif de modulation d'une onde electromagnetique | |
WO2023021114A1 (fr) | Dispositif de detection d'approche |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE GB IT LI NL |
|
17P | Request for examination filed |
Effective date: 19980506 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20010529 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE GB IT LI NL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20020724 Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020724 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20020724 |
|
REF | Corresponds to: |
Ref document number: 221261 Country of ref document: AT Date of ref document: 20020815 Kind code of ref document: T |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 69714132 Country of ref document: DE Date of ref document: 20020829 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ICB INGENIEURS CONSEILS EN BREVETS SA |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20020724 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030430 |
|
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: 20030425 |
|
BERE | Be: lapsed |
Owner name: *ETA S.A. FABRIQUES D'EBAUCHES Effective date: 20030430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031101 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20031101 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20070327 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20070328 Year of fee payment: 11 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080430 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081101 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080430 |