摘要:
An electronic micromodule includes a support wafer, and an integrated circuit chip on the support wafer. The integrated circuit chip includes electrical connector areas, and at least one insulation layer is on the support wafer and the integrated circuit chip. The insulation layer includes openings to the electrical connector areas. At least one flat winding defining a coil is on the insulation layer and is connected to the electrical connector areas. A conducting material is in in each of the openings through the insulation layer for connecting the coil to the electrical zconnector areas.
摘要:
A contactless integrated circuit is provided that includes a RFID communication interface, a UHF communication interface, a data processing unit, an interface multiplexer, a communication mode detection circuit, a first modulation and demodulation circuit, a second modulation and demodulation circuit, and a multiplexer demultiplexer circuit. The interface multiplexer couples the data processing unit to the RFID or UHF communication interfaces. The multiplexer demultiplexer circuits are driven by mode signals delivered by the communication mode detection circuit, to link the data processing unit to one of the two modulation and demodulation circuits.
摘要:
The present invention relates to a contactless integrated circuit comprising an RFID communication interface comprising an antenna coil for receiving a first induced alternating voltage when the integrated circuit is in the presence of an RF magnetic field, and a data processing unit linked to the first communication interface, the data processing unit being equipped with an electrically programmable and erasable memory. According to the present invention the integrated circuit further comprises a UHF communication interface comprising a UHF antenna for receiving a second induced alternating voltage when the integrated circuit is in the presence of a UHF electric field signal, and a multiplexing means for linking the data processing unit to one or other of the two communication interfaces.
摘要:
A method and a device for protecting text for reading (23), arranged on at least one written face (22) of an object (25). The object (25) is connected to at least one matching antenna (12), produced by printing on a support (11) and having at least one electromagnetic coupling zone (14) with an individual antenna of smaller dimensions. At least one security film (3), not provided with a matching antenna (12) but with at least one individual integrated antenna microcircuit called a microtransponder (7), is applied to cover the text for reading (23) for which authentication information may be delivered using the microtransponder (7).
摘要:
A method and a device for protecting text for reading (23), arranged on at least one written face (22) of an object (25). The object (25) is connected to at least one matching antenna (12), produced by printing on a support (11) and having at least one electromagnetic coupling zone (14) with an individual antenna of smaller dimensions. At least one security film (3), not provided with a matching antenna (12) but with at least one individual integrated antenna microcircuit called a microtransponder (7), is applied to cover the text for reading (23) for which authentication information may be delivered using the microtransponder (7).
摘要:
An electronic tag (30, 40) is provided comprising a contactless integrated circuit (10) and a main coil antenna (Ls) comprising at least two distinct non-coplanar and/or non-coaxial windings (Ls1-Ls4) arranged in series. Applications to the reading of a tag from any face of a three-dimensional object.
摘要:
The system has a reader of electronic labels comprising several devices for the transmission/reception of electromagnetic waves, offset angularly about a median axis so that, when the reader is placed in the vicinity of a label and irrespectively of their relative orientation, at least a part of the lines of the magnetic field generated by at least one of said transmission/reception devices can get looped by passing into the coil of the label in the direction of its axis. The label has a foil made of amagnetic and conductive material placed against the antenna and parallel to it to form a reflective screen for the electromagnetic waves. Application to the contact-free identification of objects, notably metal objects, such as gas cylinders.
摘要:
The present invention relates to a device (40) comprising a combination of at least two contactless integrated circuits (45), each integrated circuit being connected to an individual antenna coil (46) to send and/or receive data by inductive coupling. According to the present invention, the device comprises a collective antenna coil (42) that is larger in size than the individual antenna coils of the integrated circuits, and means (41) for arranging the individual antenna coil of an integrated circuit proximate to the collective antenna coil, at least when data are to be read and/or written in the integrated circuit, so that the individual antenna coil of the integrated circuit is inductively coupled to the collective antenna coil. Application to smart cards, electronic badges or electronic labels.
摘要:
The system comprises firstly an electronic label and, secondly, a label reader. The label comprises a foil made of a material that conducts magnetic fields and has a low coercive field. It is placed against the antenna and is parallel to the antenna to form a shield and a flux concentrator for the electromagnetic waves. The reader comprises bars surrounded by coils to generate a magnetic field so that the lines of said magnetic field can get looped in passing into the label when the reader is placed in the vicinity of this label. If the object on which the label is placed is provided with a protective cup, the invention provides for positioning plates, made of a material similar to that of the foil, between the bars and the protective cup. Application to the remote identification of objects, in particular metal objects such as gas cylinders.