BR102015009193A2 - wearable metal body accessory with near field communication and magnetic connector for removable electronic circuit - Google Patents

Abstract

wearable accessory with metal body and near field communication and magnetic connector for removable electronic circuit The present invention provides constructive arrangements that significantly increase the range of near field communication (nfc) in wearable metal body accessories; and facilitate the replacement of electronic circuits in embedded computer systems, and the communication range gain comes from the application of specific electromagnetic isolations or cuts to the metal parts of the metallic wearable accessory, which increase system efficiency by inhibiting the induction of current from eddy current on the metal parts and the gain in the replacement of electronic circuits in embedded computer systems comes from the application of permanent magnets to connectors that attract the small size electronic circuits encapsulated in pieces with ferromagnetic material; and present relevant industrial application for systems such as radio frequency identification (RFID), contactless payment, environment access control and user authentication, but not limited to these applications. 1/1

Description

FEATURED ACCESSORY WITH METAL BODY AND NEAR FIELD COMMUNICATION AND MAGNETIC CIRCUIT CONNECTOR

REMOVABLE ELECTRONIC

[001] The present invention provides constructive arrangements that significantly increase the range of passive, semi-passive or active near field communication (NFC) operating in the low frequency (LF) and high frequency (LF) bands. HF - High Frequency), in wearable accessories with metal body and facilitate the replacement of electronic circuits in embedded computer systems. The communication range gain comes from the application of specific electromagnetic cuts or insulators to the metal parts of the metal wearable accessory, which increase the system efficiency by inhibiting the eddy current induction on the metal parts. The gain in replacing electronic circuits in embedded computer systems comes from applying permanent magnets to connectors that attract sealing parts or encapsulate electronic circuits with ferromagnetic material. It features industry-relevant application for radio frequency identification (RFID), contactless payment, environment access control and user authentication systems, but is not limited to these applications. The present invention discloses constructive arrangements for wearable near field communication accessories and magnetic connections for removable electronic circuits.

[002] Near Field Communication (NFC) technology is becoming better known for its wide application in ID tags, smart cards, smart bracelets, smart watches and smartphones in a rapidly growing scenario of Radio Frequency Identification (RFID) markets. ) and Contactless Payment, Internet of Things (loT), and Wearable Technologies. This technology opens up new possibilities such as the use of wearable accessories such as electronic keys, ID cards, presentation cards and digital wallets, as well as to transact, authenticate, encrypt, decrypt, store and process data, secure and wireless.

[003] NFC technology uses a magnetic field as a carrier wave, the transmission and reception of which is energy and data by means of electromagnetically coupled coil-shaped antennas. However, the range designed for communication may not be reached when the antenna is near metal parts. In this condition, the carrier wave induces an eddy current on the metal surface of the wearable accessory, which creates a magnetic field in the opposite direction, which attenuates the carrier wave and reduces the communication range.

However, to enable the use of passive, semi-passive and active NFC technology operating in the LF and HF bands on wearable accessories, several technologies such as the application of ferrite films have emerged. between the metal part and one or more planar antennas arranged around the body of the accessory; winding antennas around enclosed ferrite cylinders within the wearable fitting; and the manufacture of wearable accessories with non-metallic materials such as polymers, rubber, silicone, wood, leather, ceramics and resins, which are not susceptible to Focault current formation.

Due to the similarity with the invention described in this report, some technologies are discussed below.

[006] Chinese patent CN202976160U describes a passive RFID technology ring with an encapsulated cylindrical antenna and an RFID chip, the application of which refers to product identification as a reusable label, which lasts longer than manufactured planar RFID tags. on a flexible adhesive.

Another Chinese patent CN (103) 198351 A describes a ring with RFID technology, whose antenna construction is similar to that of the previous patent (CN202976160U), providing for its use as a wearable accessory made of ceramic, plastic or resin. This patent describes the advantages of the constructive arrangement consisting of a cylindrical antenna that surrounds the ring from the inside or outside, maximizing the size of the antenna and mitigating the perceived neutralizing effect on rings with small planar antennas such as ring antennas. described in US20140266624 and WO2014143965.

Chinese patents CN202976160U and CN103198351A do indeed solve the range problem found in wearable accessories with small planar antennas, but do not consider market demand for accessories made of metals, which generally have higher demand and commercial value when compared to wearable ceramic, plastic and resin fittings. When the constructive arrangement of Chinese patents is used in their entirety, but replacing ceramics, plastics or resin with metal, the range of communication is drastically attenuated by the magnetic field generated by the Focault current and may be insufficient for the application in question. . In the constructive arrangement of CN (103) 198351 A, a metal body becomes a medium with magnetic permeability greater than air and human body permeability with the electrical resistance of a metal part, which tends to zero because it is a continuous small annular piece of conductive material. These conditions favor the formation of the Focault current, which is generated by the sum of the interaction of the generator magnetic fields by the currents that travel through the coil-shaped antennas of the NFC reader and the wearable accessory, with the metallic body of the wearable accessory. This interaction absorbs a significant amount of system energy, reducing the range of communication between accessories with the CN (103) 198351A patent-pending construction with metal body and NFC readers.

While the use of circular antennas around the body of the accessory may increase the communication range for accessories made of non-metallic materials, application in accessories made of metallic materials nullifies these gains, drastically reducing the communication range.

Accordingly, it is desirable to develop wearable fittings made of metal that have a better communication range and have low cost protection and sealing; with electronic circuit protected from dirt, corrosion and humidity; that is hard to drop but easily removed by the user.

[0011] The invention, described in this report, discloses a METALLY BODY CLOSABLE ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT, consisting of: an annular metal body; an antenna of conductive material coiled around this metal body; and an integrated or interchangeable electronic circuit with NFC interface that connects to the terminals of this antenna, providing new forms of user interaction and added value for manufacturers of wearable accessories and personal electronics; providers of identification, authentication and payment solutions; and online service providers; but not limited to these.

The near field communication antenna is coil-shaped and may be disposed from the inside of an annular metal part, or from the outside, or between two annular metal parts embedded in the wearable accessory body. The wearable accessory body can be made of high commercial value materials such as gold, platinum, silver, tungsten, titanium, aluminum, steel ... but not limited to these materials. The wearable accessory body, in turn, is formed by: one or more metal arches; or insulated metal rings with surface finish in materials of high electrical resistance and magnetic permeability. This constructive arrangement significantly increases the range of near-field communication as it dramatically reduces energy loss by inducing Focault current over the annular metal body. It is characterized by significantly increasing the near-field communication range through the NFC-wearable wearable attachment, consisting of one or more cross-slotted annular metal parts that interrupt ring continuity or the annular metal body covered by an electrical insulator with high magnetic permeability.

[0013] This invention provides interaction with Point Of Sale (POS) machines, automated teller machines (ATMs), smartphones, digital locks, electronic turnstiles, and other NFC technology devices and systems. LF and HF bands, facilitating people's daily lives and generating value for manufacturers of wearable accessories and personal electronics; providers of identification, authentication and payment solutions; and online service providers; but not limited to these.

In order to illustrate the present invention, but without limiting the scope thereof to the parts represented herein, the following drawings are included herein: Figure 1 illustrates the basic constructional arrangements;

Figures 2-4 illustrate the working principle of the present invention;

Figures 5-9 illustrate examples of constructive arrangements derived from the basic constructive arrangements;

[0018] Figures 10-15 illustrate examples of electronic circuit connections;

Figures 16-17 illustrate possible interactions of the present invention with the ecosystem.

FIG. 1 illustrates NFC-wearable annular wearable fittings (100) comprised of slotted annular metal parts (111) or annular metal parts (121); an electronic circuit (103). Example: Printed Circuit Board (PCI) with various components, Integrated Circuit (Cl), any Field-Programmable Gate Array (FPGA), with passive, semi-passive or active NFC interface operating in LF and HF bands; circular coil antennas (104) made of electrically conductive material covered by an insulating material connected to the circuit (103);

FIG.1A illustrates an "NFC wearable accessory with an annular metal body (110) with a slot (112)" consisting of: an annular shaped metal part (111) having the same characteristics as the part (121), but with a slot (112); an electronic circuit with NFC interface (103); and a coil-shaped circular antenna (104) connected to the circuit (103).

FIG.1B illustrates an "NFC wearable accessory with electromagnetic isolation annular metal body (120)" consisting of: an annular shaped metal part (121) covered by a high magnetic permeability electrical insulator ( 122); an electronic circuit with NFC interface (103); and a coil-shaped circular antenna (104) connected to the circuit (103).

FIG. 2 illustrates the electromagnetic effects associated with wireless data and energy transfer on wearable accessories (100).

FIG. 2A illustrates the wearable accessory (110) subjected to a magnetic field (2204) emitted by an NFC reader; an electric current 4114 traveling through coil (104) at a given time; a magnetic field 2114 generated by the current flowing through the coil (104); equivalent slot resistance 3112); and the eddy current (4111) induced on the metal part (111) of the accessory.

FIG. 2B illustrates the wearable accessory (120) subjected to a magnetic field (2204) emitted by an NFC reader; an electric current (4124) running through the coil (104) at a given time; the magnetic field (2124) generated by the current flowing through the coil (104); and the eddy current (4121) induced on the metal part (121) of the accessory.

FIG. 3 illustrates the interaction between the hand (300) of a user wearing an NFC metal ring (100) and an equipment having an NFC reader (200) (example: smartphone, tablet, notebook, POS, digital lock, access control system, electronic ratchet, car door handle).

FIG. 3A illustrates the hand (300) of a wearer wearing an NFC metal ring (100) over equipment having an NFC reader (200).

FIG. 3B illustrates a simplified example of the electromagnetic interaction between coil (104) of ring (100) and coil (204) of reader (200). In this example, the coil 104 is perpendicular to the edge of the coil 204. Also represented are: current (4204) running through coil (204); the magnetic field (2204)) emitted as a result of current (4204); and the current induced in the coil (104) by the magnetic field (2204).

Fig. 4 illustrates examples of electromagnetic coupling of coil (104) of ring (100) with antenna (204) of reader (200). The antenna 204 is represented by a section of the reader 200 in a side view.

FIG.4A Illustrates the magnetic coupling between the coil (104) and the coil (204), so that the plane of the coil (104) is coplanar to the plane of the coil (204).

FIG.4B Illustrates the magnetic coupling between the coil (104) and the coil (204) such that the plane of the coil (104) is inclined with respect to the plane of the coil (204).

FIG.4C Illustrates the magnetic coupling between the coil (104) and the coil (204), so that the plane of the coil (104) of the ring is perpendicular to the plane of the coil (204).

FIG. 5 illustrates two constructional arrangements derived from wearable fitting 110, herein termed "slotted ring and coil on the inside" (510) and "slotted ring and coil on the outside" (520) . These constructive arrangements consist of: an annular shaped metal part (111) with a slot filled or not with insulating material (115); and a coil (104) of electrically conductive material disposed outside or within the metal part (111), whether or not covered by other protective materials (106).

Figures 5A and 5C illustrate three-dimensional views of rings (510) and (520), respectively. Figures 5B and 5D illustrate enlarged sections of rings 510 and 520, respectively, detailing finishing possibilities, in which the spool 104 is disposed in a cavity outside the part 111 of the ring 510. ) or inside the ring part (111) (520), whether or not covered by a protective material (106).

[0036] FIG. 6 illustrates two constructional arrangements derived from the wearable fitting 120, hereinafter referred to as the "electromagnetically insulated ring and coil on the inside" (610) and "the electromagnetically insulated ring and coil on the outside" ( 620). These constructive arrangements consist of: an annular shaped metal part (121) covered by an electrical insulator with high magnetic permeability (122); and a coil (104) of electrically conductive material disposed outside or within the metal part (121), whether or not covered by other protective materials (106).

FIGS. 6A and 6C illustrate three-dimensional views of rings (610) and (620), respectively.

FIGS. 6B and 6D illustrate enlarged sections of rings (610) and (620), respectively, detailing finishing possibilities, in which the insulator (122) (122) is applied to the metal part (121) and the coil (104) is disposed in a cavity outside the ring part (121) of the ring (610) or inside the metal part (121) of the ring (620), whether or not covered by a protective material (106 ).

[0039] FIG. 7 illustrates two constructional arrangements derived from wearable fittings (110) and (120), herein referred to as "slotted ring and electromagnetic isolation" (710) and "closed ring and electromagnetic isolation" (720).

Figures 7A and 7B illustrate a three-dimensional view and an enlarged section of the ring (710), which is comprised of: an annular shaped metal part (111), whether or not the slot is filled with insulating material (115) ; covered by an electrical insulator with high magnetic permeability (122); and a coil (104) of electrically conductive material disposed on the metal part (111), whether or not covered by other protective materials (106).

Figures 7C and 7D illustrate a three-dimensional view and an enlarged section of the ring (720), which comprises: two overlapping annular shaped metal pieces (121); covered by an electrical insulator with high magnetic permeability (122); and a coil (104) of electrically conductive material disposed between the metal parts (121), whether or not covered by other protective materials (106).

[0042] FIG. 8 illustrates two constructional arrangements derived from wearable fittings 110 and 710, herein referred to as the "closed and slotted ring" (810) and "closed and slotted ring" (820). These building arrangements are composed of: two annular shaped metal parts (111), whether or not covered by an electrical insulator with high magnetic permeability (122); with slots (112) overlapped or not, whether or not filled with insulating material (115); and a coil (104) of electrically conductive material disposed between the metal parts (111), whether or not covered by other protective materials (106).

Figures 8A and 8B illustrate three-dimensional views of rings 810 and 820, respectively.

FIG.8C illustrates an enlarged section of rings 810 and 820 detailing a finishing possibility in which the coil 104 is disposed in a cavity between the metal parts 111, whether or not covered by a protective material (106).

Figures 8D, 8E and 8F illustrate enlarged sections of rings (810) and (820), detailing finishing possibilities, in which the insulator (122) is applied to both metal parts (111), only to part ( 111) from inside or only from outside (111); and the coil (104) is disposed in a cavity between the metal parts (111), whether or not covered by a protective material (106).

FIG. 9 illustrates an example of a constructive arrangement derived from wearable fittings 110 and 120, herein referred to as a "multiple ring overlapping closed ring" (910). This constructive arrangement consists of: an annular shaped metal part (121); covered by an electrical insulator with high magnetic permeability (122); one or more arc-shaped metal parts (111) overlapping the part (121), with or without slots filled with insulating material (115); and a coil of electrically conductive material (104) disposed between the metal parts (121) and (111), whether or not covered by a protective material (106). FIG. 9A illustrates a three-dimensional view of the ring (910). ).

FIG. 9B illustrates an enlarged section of ring 910 detailing a possibility of finishing in which the insulator 122 is applied to the part 121 and the coil 104 is immersed in a material of protection (106) disposed in a cavity between the metal parts (121) and (111).

FIG. 10 illustrates a way of integrating a Cl (1003) with a wearable accessory (100), by way of example, for comparison with other ways of integrating and connecting an NFC interface electronic circuit to an accessory. wearable.

FIG. 10A illustrates a Cl (1003), any wearable accessory (100), antenna terminals (1007), and any trim (1008).

FIG.10B illustrates Cl (1003) welded, engaged, bonded, glued or just positioned over terminals (1007).

FIG.10C illustrates the wearable accessory enclosed by the trim piece 1008.

[0053] FIG. 11 illustrates a way of integrating an encapsulated electronic circuit into a small size card, herein referred to as a "removable chip" (1103), on the inside of any wearable accessory (100).

FIG. 11A illustrates the interchangeable chip (1103); the wearable accessory (100); the connector (1107) integrated into the coil antenna (104); and a sealing part (1108), which may or may not be metal, may or may not be magnetically attracted and may or may not have a sealing material finish (eg rubber or silicone).

FIG. 11B illustrates the chip (1103) fitted to the connector (1107) of the wearable accessory (100), not yet sealed by the part (1108).

FIG.11C illustrates the wearable accessory (100) sealed by part (1108).

FIG. 12 illustrates a form of integration of a chip (1103) on the outside of any wearable accessory (100).

FIG. 12A illustrates chip (1103); the wearable accessory (100); the connector (1107) integrated into the coil antenna (104); and a sealing part (1108), which may or may not be metal, may or may not be magnetically attracted and may or may not have a sealing material finish (eg rubber or silicone).

FIG. 12B illustrates the chip (1103) fitted to the connector (1107) of the wearable accessory (100), not yet sealed by the part (1108).

FIG.12C illustrates the wearable accessory (100) sealed by part (1108).

FIG.13 illustrates a form of integration of a chip (1103) by the side of any wearable accessory (100).

FIG.13A illustrates chip (1103); the wearable accessory (100); the connector (1307) integrated with the antenna of the accessory; and a sealing part (1308), which may or may not be metal, may or may not be magnetically attracted and may or may not have a sealing material finish (eg rubber or silicone).

FIG.13B illustrates chip 1103) fitted to connector (1307) of wearable accessory (100), not yet sealed by part (1308).

FIG.13C illustrates the wearable accessory (100) sealed by part (1308).

Figures 14 and 15 illustrate a way of integrating an encapsulated electronic circuit into a card with ferromagnetic material, herein referred to as the "magnet attracted interchangeable chip" (1403), inserted into a connector (1107) which may have a sealing (eg rubber or silicone) finish, with magnet (1109) disposed on the inside or outside of any wearable accessory (100).

Figures 14A and 15A illustrate chip (1403); the wearable accessory (100); the connector (1107), integrated with the coil-shaped circular antenna (104) of the accessory; and a permanent magnet (1409) integrated with the wearable accessory (100).

Figures 14B and 15B illustrate the wearable accessory (100) with the chip (1403) engaged, sealing the connector (1107) with the pressure generated by the attraction between the magnet (1409) and the chip (1403).

Fig. 16 illustrates some examples of wearable accessory block diagrams (100) and their respective coil-shaped circular antennas (104) and electronic circuits (103); and other elements of the ecosystem that interact with wearable accessories (100) directly or indirectly, such as: personal electronic devices (400) with or without NFC interface, whether or not connected to the internet (500); and miscellaneous system NFC readers (200), which may or may not be connected to local systems (600) or internet-based services (500).

FIG.16A illustrates the interaction of a wearable accessory (100) with a personal electronic device (400) (example: smartphone, music player, tablet, notebook) that has an NFC interface.

FIG.16B illustrates the interaction of a wearable accessory (100) with an internet-based service (500) (example: wearable accessory application, software update manager, internet banking, invoice management application, and e-mail, social network, cloud storage system, government system, online store, health insurance) being accessed through a personal electronic device (400) (Example: smartphone, tablet) with NFC interface and connection to the internet (500).

[0071] FIG.16C illustrates the interaction of a wearable accessory (100) with a local system (600) (example: access control system, home automation system, monitoring system, local server) connected to the internet (500 ), and is accessed through a personal electronic device (400) with an NFC interface and an internet connection (500).

FIG.16D illustrates the interaction of a wearable accessory (100) with a personal electronic device (400) (example: smartphone, tablet, notebook, desktop) connected to the internet (500) and accessed via an NFC reader (200) (example: contactless POS, electronic mass transit ratchet) connected to an internet-based service (500) (example: internet banking, invoice management application, financial transaction processing network, integrated banking system). metropolitan transport).

[1673] Figures 16E and 16F illustrate the interaction of a wearable accessory (100) with a local system (600) (example: access control system, home automation system, monitoring system, local server) connected to a reader. NFC (200) integrated into system (600) via internet (500) or local connection.

FIG. 17 illustrates some examples of wearable accessory block diagrams (100) and their respective coil-shaped circular antennas (104), electronic circuits (103), auxiliary communication circuits (108), and batteries ( 107); and other elements of the ecosystem that interact with wearable accessories (100) directly or indirectly, such as: personal electronic devices (400) with non-NFC communication interfaces (Example: Bluetooth, Wi-Fi, Zig- Bee) whether or not connected to the internet (500); and other communication interfaces (Example: Bluetooth, Wi-Fi, Zig-Bee, GSM, GPS) from miscellaneous systems (700), which may or may not be connected to local systems (600) or internet-based services (500) .

FIG.17A illustrates the interaction of a wearable accessory (100) with a personal electronic device (400) (example: smartphone, music player, tablet, notebook) via a complementary communication interface other than NFC, (Example: Bluetooth, Wi-Fi, Zig-Bee).

FIG.17B illustrates the interaction of a wearable accessory (100) with an internet-based service (500) (example: wearable accessory application, software update manager, internet banking, invoice management application, and email, social network, cloud storage system, government system, online store, health insurance) being accessed through a personal electronic device (400) (Example: smartphone, tablet) with a complementary communication interface , other than NFC, (Example: Bluetooth, Wi-Fi, Zig-Bee) and internet connection (500).

FIG.17C illustrates the interaction of a wearable accessory (100) with a local system (600) (example: access control system, home automation system, monitoring system, local server) connected to the internet (500 ), accessed through a personal electronic device (400) with a non-NFC complementary communication interface (Example: Bluetooth, Wi-Fi, Zig-Bee) and internet connection (500).

FIG.17D illustrates the interaction of a wearable accessory (100) with a personal electronic device (400) (example: smartphone, tablet, notebook, desktop) connected to the internet (500) and accessed via any device with a non-NFC complementary communication interface (Example: Bluetooth, Wi-Fi, Zig-Bee) (700) (example: Bluetooth POS, iBeacon, Zig-Bee gateway, Wi-Fi router) connected to an internet-based service (500) (example: internet banking, invoice management application, financial transaction processing network).

[0079] Figures 17E and 17F illustrate the interaction of a wearable accessory (100) with a local system (600) (example: access control system, home automation system, monitoring system, local server) connected to a sensor with a complementary non-NFC communication interface (Example: Bluetooth, Wi-Fi, Zig-Bee) (700) integrated into the system (600) via the internet (500) or local connection.

The following describes the basic constructional arrangements of the Wearable Metal Body Accessory and Near Field Communication and Magnetic Connector for Removable or Interchangeable Electronic Circuit and examples of advanced constructional arrangements, their operating principles, and possible interactions with the ecosystem.

FIG.1 illustrates the basic constructive arrangements; Figures 2-4 illustrate the working principle of the present invention; Figures 5-9 illustrate examples of constructive arrangements derived from the basic constructive arrangements; Figures 10-15 illustrate examples of electronic circuit connections; and FIG. 16 illustrates possible interactions of the present invention with the ecosystem.

[0082] Regarding the wearable accessory with metallic body and near field communication and its constructive dispositions: The technologies that increase the reach of the field communication near the metallic wearable accessory, without changing the environmental conditions, are: the cutting of the metallic part ( 111) at one or more points forming one or more slots (112) and / or applying an insulating material with high electrical resistance and magnetic permeability (122) between the coil-shaped circular antenna (104) and the metal part (121).

Concerning the working principle of the invention: In order to promote understanding of the working principle of the present invention, the interactions between the NFC accessories (100) and the NFC readers (200) illustrated in the Figures are explained below. 2, 3 and 4. Simply put, communication between an accessory (100) and a reader (200) is based on the following principles: for reading the NFC reader control circuit (200) sends a modulated electrical signal to the coil-shaped circular antenna (104) generating the electric current (4204) which in turn generates the magnetic field (2204); if an accessory 100 is positioned near the reader at or in any of the positions shown in FIG. 4, the magnetic field 2204, which carries the signal emitted by the reader, will pass through the circular antenna shaped like coil (104) of accessory (100), inducing current (4104); this current (4104) will feed the circuit (103) and carry the signal emitted by the reader (200), which will then be processed in the circuit (103); circuit (103) will finally respond with a signal on antenna (104) that will generate a new current (4104) which will in turn generate magnetic field (2104); If the magnetic field 2104 is sufficiently wide, it will pass through the antenna 200 of the reader 200, inducing a response current 4104, which will carry the response signal to the NFC reader control circuit 200. ).

A practical example of this interaction between an accessory 100 and a reader 200 is illustrated in FIG. 3, where a user initiates communication with the reader 200 by approaching the hand 300 wearing the accessory. (100) to the reader (200) in a position which allows the electromagnetic field (2204) to flow through the coil-shaped circular antenna (104) of the accessory (100). These interactions apply to all mounting arrangements derived from the fitting (100). The communication range of the constructive arrangements 110 and 120 is much greater than that identified in the constructive arrangement of the patent-pending CN103198351A, as the slot (112) and the insulator (122) decisively alter the interaction of the metal part ( 111) and (121) with the coil-shaped circular antenna (104) and the electromagnetic forces acting on the system. Both slot 112 and material 122 act on the same principle: reduce system energy loss by minimizing the current induction of Focault (4 (111)) and (4 (121)) on metal parts. (111 and 121).

In the constructive arrangement of patent CN103198351 A, a metal body becomes a medium with magnetic permeability greater than the permeability of air and the human body with the electrical resistance of a metal part, which tends to zero as a part. small continuous annular conductive material. These conditions favor the formation of the Focault current, which is generated by the sum of the interactions of the generator magnetic fields by the currents that travel through the coil-shaped antenna of the NFC reader (200) and the coil-shaped antenna (104) of the wearable accessory. , with the metal body of the wearable accessory. This interaction generates a wave in the opposite direction of the carrier wave and absorbs a significant part of the system energy, significantly reducing the range of communication between accessories with the constructive arrangement of patent-pending CN103198351 A and NFC readers (200).

In the constructive arrangement (110), cuts in the metal part (111) form one or more slots (112). The good magnetic permeability of part (111) favors the flow of electromagnetic fields (2204) and (2104), while the slot creates a very high resistance (3112) that interrupts the flow of Focault current (4111) around the part (111 ). This invention significantly reduces system energy loss by increasing the range of near field communication between accessories with the constructive arrangement (110) NFC voters (200).

Examples of Advanced Construction Arrays: Figures 5-9 illustrate examples of wearable accessories with metal parts and antenna for near field communication derived from constructional arrays (110) and (120).

In FIG. 5 wearable fittings (510) and (520) exemplify possible variations of the constructive arrangement (110). This example shows that the coil-shaped circular antenna 104 may be positioned both inside and outside part 111 without significantly altering system performance. This example also illustrates finishing possibilities for the fitting, such as: inserting a filler material (115) into the slot (112); and arranging the coil-shaped circular antenna (104) in a cavity surrounding the part (101), filled with a protective material (106), such as a resin.

In FIG. 6 wearable fittings 610 and 620 exemplify possible variations of the constructive arrangement 120. This example shows that the coil-shaped circular antenna (104) can be positioned both inside and outside the part (121) without significantly altering system performance as long as the insulating material (122) is between the circular antenna in coil shape (104) and part (121). This example also illustrates a finishing possibility for the fitting such as arranging the insulator (122) and the coil-shaped circular antenna (104) in a cavity surrounding the part (121) filled with a protection (106) as a resin.

In FIG. 7 wearable fittings 710 and 720 exemplify possible combinations of mounting arrangements 110 and 120. The accessory (710) has a slot (112) and the insulating material (122) in the same mounting arrangement, combined in favor of improved system performance. The accessory (720) hides the coil-shaped circular antenna (104), wrapping it between two metal pieces (121) covered by insulating material (122) and a protective material (106), which also isolates the parts ( 121) to each other.

In FIG. 8 the wearable fittings 810 and 820 exemplify possible combinations of the constructive arrangements 110 and 120. Accessory (810) hides the coil-shaped circular antenna (104) by wrapping it between two metal parts (111), whether or not covered with insulating material (122), with one or more overlapping slots (112) or not with an insulating material (115). The fitting (820) has only one difference from the mounting arrangement of the fitting (810): the slots (112) are not overlapping. This characteristic gives greater mechanical strength to this construction arrangement compared to the construction arrangement (810).

In FIG. 9 the wearable fitting (910) exemplifies a possible combination of the mounting arrangements (110) and (120), where an attachment with the mounting arrangement (610) is overlapped by parts (111) with one or more slots. (112), whether or not covered with insulating material (115), without electrical contact between parts (111) and (121). This constructional arrangement demonstrates that any constructional arrangement that follows the operating principles of the present invention will mitigate Focault current induction by increasing the range of near field communication in wearable metal body fittings.

Examples of aggregation of electronic circuits with wearable accessories: Figures 10-15 illustrate wearable accessories (100) and possible ways of aggregating electronic circuits. One of the most common options for wearable near field communication accessories is the aggregation of the electronic circuit through a PCI or a Cl (1003) soldered to an antenna termination (1007), as shown in FIG. Another option proposed in this invention is for the electronic circuit (103) to be embedded in the wearable accessory (100) by means of an "interchangeable chip" (1103) or an "interchangeable magnet attracted chip" (1403), so that the chip in question can be handled by the user so that it can be easily inserted and removed from connectors (1107) or (1307). Figures 11 and 12 exemplify the insertion of an interchangeable chip (1103) into a connector (1107) disposed on the inside or outside of a wearable accessory (100). The sealing parts (1108) and (1208) cover the respective connectors (1107), and can be magnetically attracted by permanent magnets disposed on the accessory body (100) ensuring optimum pressure and proper protection of the chip electronic circuit (1103). . Figures 14 and 15 exemplify inserting a "magnet attracted interchangeable chip" (1403) into a connector (1107) and the magnetic pull exerted by one or more permanent magnets (1409) disposed on the accessory body (100), ensuring the optimal pressure of the chip (1403) against the connector (1407).

Possible interactions with the ecosystem: FIG. 16 illustrates a block diagram with the wearable accessory (100), the coil-shaped circular antenna (104), and the electronic circuit (103); and other elements of the ecosystem that interact with the wearable accessory (100) directly or indirectly, such as: personal electronic devices with NFC interface and internet connection (400) and miscellaneous system NFC readers (200), which may or may not not be connected to a local or cloud-based computing system (600). FIG.16 allows the understanding of the interaction of wearable accessory (100) with the ecosystem. The wearable accessory 100 may, for example, communicate with the user's smartphone 400 via its NFC interface. This interface makes it possible to perform identification, authentication and data transfer operations between the smartphone (400) and the wearable accessory (100), but is not limited to these operations. An example is the unlocking of the smartphone (400), where the electronic circuit identification code (103) of the wearable accessory (100) of the user is entered on the smartphone (400) which has an NFC interface, and checks the user registration for unlock or not, and may or may not request a second authentication (Example: password or biometrics).

The wearable accessory (100) may also, for example, communicate with an NFC reader (200) to perform local or remote operations such as user identification, transaction authentication and data transfer, but not limited to. to these operations.

[0096] An example of local operation is user identification on an access control system, where the electronic circuit identification code (103) of the wearable accessory (100) of the user is entered in a locally connected system (600). to the NFC reader (200). To identify himself, the user approaches the hand (300) wearing the wearable accessory (100) to the reader (200), which checks the user's registration in the system (600) and whether or not it allows access to the environment. request a second authentication (Example: password or biometrics).

[0097] A simplified example of remote operation is the authentication of a payment transaction at a contactless POS (200) connected to the internet (500) in a merchant where the wearable accessory electronic circuit (103) has a credit card program and saved user bank details. To make a payment, the user approaches the hand (300) wearing the wearable accessory (100) to the POS NFC reader (200). The credit card program installed in the electronic circuit (103) generates a unique authentication code from an encryption key known to the card operator (500). The code is sent by the POS (200) to the card operator's online system (500), which decrypts the card, checks the user's identity, checks the card limit and whether or not to release the transaction and may or may not request a second authentication. (Example: password or biometrics). Finally, changes to the user's online banking account (500) may generate a notification on the user's smartphone (400).

Claims (14)

1. CLOSED METAL BODY COMMUNICATION ACCESSORY WITH NEXT FIELD AND MAGNETIC REMOVABLE CIRCUIT CONNECTOR, consisting of: an annular metal body (111) characterized by having one or more transverse slots (112); and having a "coil-shaped antenna (104) made of electrically conductive material" surrounding the annular metal body (111); and have a "any electronic circuit" (103) with passive near, passive or active near field communication interface operating in the low frequency (LF) and high frequency (HF) bands, which may or may not have a battery and interfaces communication cables, connected to the coil antenna terminals (104) and connected to the accessory circuits. 2. CLOSED METAL BODY ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT CONNECTOR, consisting of an annular metal body (121) characterized by being covered by an electrical insulator with high magnetic permeability (122); having a coil-shaped antenna (104) made of electrically conductive material surrounding the annular metal body (121); and have a "any electronic circuit" (103) with passive near, passive or active near field communication interface operating in the low frequency (LF) and high frequency (HF) bands, which may or may not have a battery and interfaces communication cables, connected to the antenna terminals (104) and connected to accessory circuits. 3. CLOSED METAL BODY COMMUNICATION ACCESSORY WITH NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT CONNECTOR according to claim 1 in its advanced construction arrangement (510), characterized in that the annular shaped metal part (111) has one or more slots (112) whether or not filled with insulating material (115); and having a coil-shaped antenna (104) disposed outside the metal part (111), whether or not covered by other protective materials (106); 4. CLOSED METAL BODY CLOSING ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT CONNECTOR according to claim 1 in its construction arrangement (520), characterized in that the annular shaped metal part (111) has one or more slots ( 112) whether or not filled with insulating material (115); and having a coil-shaped antenna (104) disposed within the metal part (111), whether or not covered by other protective materials (106); 5. CLOSED METAL BODY COMMUNICATION ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT CONNECTOR according to claim 2 in its construction arrangement (610), characterized in that it has an annular metal part (121) as an insulator (122) and a coil-shaped antenna (104) arranged outside the metal part (121), whether or not covered by other protective materials (106). 6. CLOSED METAL BODY ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT CONNECTOR according to claim 2 in its construction arrangement (620), characterized in that it has a metal part (121); with the insulator (122) and the coil-shaped antenna (104) disposed within the metal part (121), whether or not covered by other protective materials (106). 7. CLOSED METAL BODY COMMUNICATION ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT CONNECTOR according to claims 1 and 2 in its constructional arrangement (710) and variations, characterized by: annular metal part (111) with a or more slots (112); with the insulator (122) and have a coil-shaped antenna (104) arranged outside or inside the metal part (111), whether or not covered by other protective materials (106). 8. CLOSED METAL BODY CLOSED ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT CONNECTOR according to claim 2 in its constructional arrangement (720), characterized by having two overlapping annular shaped metal parts (121) covered by the insulating (122); and having a coil-shaped antenna (104) disposed between the insulators (122) and the metal parts (121), whether or not covered by other protective materials (106). 9. CLOSED METAL BODY COMMUNICATION ACCESSORY AND NEXT FIELD COMMUNICATION FOR REMOVABLE ELECTRONIC CIRCUIT according to claim 1 in its constructional arrangements (810) and (820), characterized by having two overlapping metal parts (111) with one or more slots (112) whether or not overlapped, whether or not covered by insulator (122); and having a coil-shaped antenna (104) disposed between the metal parts (111), whether or not covered by other protective materials (106). 10. CLOSED METAL BODY COMMUNICATION ACCESSORY WITH NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT CONNECTOR according to claims 1 and 2 in its construction arrangement (910) and variations thereof, characterized in that it has a metal part (121) in shape cancel; covered by insulator (122); one or more arc-shaped metal parts (111) overlapping the inside or outside of the part (121), with slots (112) whether or not filled with insulating material (115); and having a coil (104) of electrically conductive material disposed between the metal parts (121) and (111), whether or not covered by other protective materials (106). METAL BODY CLOSABLE ACCESSORY WITH NEXT FIELD COMMUNICATION AND REMOVABLE ELECTRONIC CIRCUIT CONNECTOR according to claims 1 and 2, characterized in that the electronic circuit (103) is encapsulated in an electronic board or integrated circuit (1003). glued, bonded or fitted to the terminals (1007) of the coil antenna (104). METALLIC BODY CLOSED ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE MAGNETIC CIRCUIT CONNECTOR according to claims 1 and 2, characterized in that it has a connector (1107) disposed inside or outside of the wearable accessory (100 ), interconnecting the coil-shaped antenna terminations (104) and containing electronic circuitry (103) encapsulated in an "interchangeable chip" (1103); and a sealing part (1108) or (1208) of the connector (1107), which may or may not have ferromagnetic material parts and be attracted by one or more magnets integrated into the wearable accessory body (100). METAL BODY CLOTHING ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE MAGNETIC CIRCUIT CONNECTOR according to claims 1 and 2, characterized in that it has a connector (1307) disposed by the side of the wearable accessory (100), interconnected with the terminations the coil-shaped antenna (104) that connects an electronic circuit (103) encapsulated in an "interchangeable chip" (1103); and having a sealing part (1308) from the connector (1307), which may or may not have ferromagnetic material parts and be attracted by one or more magnets integrated into the wearable accessory body (100). METAL BODY CLOSABLE CLOTHING ACCESSORY AND NEXT FIELD COMMUNICATION AND REMOVABLE MAGNETIC CONNECTOR according to claims 1 and 2, characterized in that it has a connector (1107) disposed on the inside or outside of the wearable accessory (100). ), interconnected to the coil-shaped antenna terminations (104) and which connects an electronic circuit (103) encapsulated in an “interchangeable chip” (1403), which may or may not have pieces of ferromagnetic material and be attracted to one or more magnets integrated into the wearable accessory body (100).