Devices and methods of disrupting data transfer between an RFID interrogation device (50, 50) and an RFID data storage device (30, 30) to be protected, are provided. An example of an embodiment of an RFID signal disruptor device includes a container (41, 141) and an RFID signal disruptor circuit (151, 161, 161, 171, 171, 271, 271) configured to substantially disrupt the signal provided by the RFID interrogation device (50, 50) when the RFID signal disruptor device is positioned to protect the RFID data storage device (30, 30). The RFID signal disruptor device can also include an interrogation indicator (63, 296) configured to indicate to a user of the RFID data storage device (30, 30) that an unauthorized RFID interrogation device (50, 50) is attempting to interrogate the RFID data storage device (30, 30) when the RFID signal disruptor device is positioned in close proximity to the RFID data storage device (30, 30) to provide protection thereto and when the RFID interrogation device (50, 50) is producing the interrogation signal.

The game table reading system comprises reading antennas for each of a plurality of reading areas of a game table, read-restriction antennas for each of the plurality of the reading areas, the read-restriction antennas restricting the RFID tag embedded in a game token placed in the corresponding reading area from being read by the reading antenna corresponding to the other adjacent reading areas, a reading control device that controls the reading antennas, and a read-restriction control device that controls the read-restriction antennas. The read-restriction control device causes the read-restriction antennas corresponding to the reading areas adjacent to the reading areas corresponding to the reading antenna that the reading control device causes to read, in synchronization with the reading control device.

Embodiments of this application disclose a backscatter communication method and a related apparatus. The method includes: An excitation device determines a first sequence, generates a first signal, and sends the first signal, where the first signal carries the first sequence; after receiving the first signal, a backscatter device modulates backscatter device data onto the received first signal to obtain a second signal, and backscatters the second signal, to implement first scrambling on the backscatter device data by using the first sequence; and a receiving device determines the first sequence, receives the second signal from the backscatter device, and demodulates the received second signal based on the first sequence, to obtain the backscatter device data carried on the second signal.

Devices and methods of disrupting data transfer between an RFID interrogation device (50, 50) and an RFID data storage device (30, 30) to be protected, are provided. An example of an embodiment of an RFID signal disruptor device includes a container (41, 141) and an RFID signal disruptor circuit (151, 161, 161, 171, 171, 271, 271) configured to substantially disrupt the signal provided by the RFID interrogation device (50, 50) when the RFID signal disruptor device is positioned to protect the RFID data storage device (30, 30). The RFID signal disruptor device can also include an interrogation indicator (63, 296) configured to indicate to a user of the RFID data storage device (30, 30) that an unauthorized RFID interrogation device (50, 50) is attempting to interrogate the RFID data storage device (30, 30) when the RFID signal disruptor device is positioned in close proximity to the RFID data storage device (30, 30) to provide protection thereto and when the RFID interrogation device (50, 50) is producing the interrogation signal.

An electronic card reader (50) for ATMs, cash machines, or similar devices (100) is provided, the electronic card (50) comprising electronic information storage means (51) and information transmission means (54), the reader comprising: an access port, defining an access slot (11), through which electronic cards (50) can be inserted and extracted, an internal volume (10), adjacent to the access slot (11) designed to at least partially house the electronic card (50), reading means of the information storage means (51), designed to read the electronic information when the electronic card (50) is at least partially housed within the internal volume (10), electronic control means functionally connected to the reading means; optical control means, designed to verify the presence of foreign bodies within the internal volume (10), the control means being functionally connected to the control means and designed to determine if the foreign bodies in the internal volume consisted of the authorized type of electronic card (50).

An electrically shielded article includes a flexible and/or elongatable substrate and a conductive ink applied over at least a portion of the substrate. The conductive ink includes a resin and a conductive material. When the conductive ink is applied over the substrate, the conductive material in the conductive ink is present over the substrate in an amount of at least 5 g/m.sup.2. The electrically shielded article exhibits a signal loss of at least 5 dBm at up to 4 mm according to the NFC Detuning Test. A method of preparing an electrically shielded article and an identification device including the electrically shielded article are also disclosed.

Embodiments of this application disclose a backscatter communication method and a related apparatus. The method includes: receiving, by a backscatter device, a first signal from an excitation device, the first signal carries a first sequence determined by the excitation device; modulating, by the backscatter device, backscatter device data to the first signal to obtain a second signal, wherein the backscatter device data is scrambled by the first sequence; backscattering, by the backscatter device, the second signal to a receiving device.

A jamming device for inhibiting unauthorised contactless reading of a contactless readable object is disclosed. In one embodiment, the jamming device includes: an antenna for receiving an interrogation signal from a reader device; a touch sensitive interface; and a circuit electrically connected to the antenna and the touch sensitive interface, wherein the circuit is configured to: operate in a first mode to generate and emit a jamming signal, via the antenna, in response to receiving the interrogation signal whilst the touch sensitive interface fails to indicate a touch event; and operate in a second mode whilst the touch sensitive interface indicates a touch event, wherein the jamming signal is not emitted via the antenna in response to receiving the interrogation signal whilst operating in the second mode. A card carrying object, system and method is also disclosed.

Devices and methods of disrupting data transfer between an RFID interrogation device (50, 50) and an RFID data storage device (30, 30) to be protected, are provided. An example of an embodiment of an RFID signal disruptor device includes a container (41, 141) and an RFID signal disruptor circuit (151, 161, 161, 171, 171, 271, 271) configured to substantially disrupt the signal provided by the RFID interrogation device (50, 50) when the RFID signal disruptor device is positioned to protect the RFID data storage device (30, 30). The RFID signal disruptor device can also include an interrogation indicator (63, 296) configured to indicate to a user of the RFID data storage device (30, 30) that an unauthorized RFID interrogation device (50, 50) is attempting to interrogate the RFID data storage device (30, 30) when the RFID signal disruptor device is positioned in close proximity to the RFID data storage device (30, 30) to provide protection thereto and when the RFID interrogation device (50, 50) is producing the interrogation signal.

The present invention is directed toward an RFID device that includes a motion sensing mechanism. The motion sensing mechanism is adapted to sense motion of the RFID device and then selectively allow or restrict the RFID device's ability to transmit messages, which may include sensitive data, when the RFID device is placed in an RF field. Thus, the motion sensing mechanism is utilized to control access to data on the RFID device to only instances when the holder of the RFID device moves the RFID device in a predefined sequence of motion(s).