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).

Systems and methods are provided for automatically detecting passive components in communications systems using radio frequency identification (RFID) tags. A coupling circuit is provided in a system between a communications network and an RFID tag. The RFID tag is associated with a passive element of a distributed antenna system (DAS). The coupling circuit can allow an RFID signal received from an RFID transmitter over the communications network to be transported to the RFID tag. The coupling circuit can substantially prevent mobile communication signals on the communications network from being transported to the RFID tag.

According to an embodiment, a wireless tag communication device includes a first antenna that emits radio waves towards a first region of a conveyance path for wireless tags and a second antenna that emits radio waves towards a second region of the conveyance path on downstream of the first region along the conveyance path. A shield prevents the radio waves emitted from the first antenna from reaching a first portion of the first region while permitting the radio waves to reach a second portion of the first region. A controller is configured to select a tag ID read via the first antenna as a target tag ID, designate the target tag ID by communication via the second antenna, and then write tag information via the second antenna to the wireless tag corresponding to the designated target tag ID.