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Monitoring apparatus for a tag having an engaged and a non-engaged mode

  • US 8,717,174 B2
  • Filed: 09/07/2010
  • Issued: 05/06/2014
  • Est. Priority Date: 09/07/2010
  • Status: Active Grant
First Claim
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1. An apparatus for bi-directional communication with an external transceiver;

  • the apparatus comprising;

    a transmitter for transmitting an engagement request message from a tag to said external transceiver when said tag is in a non-engaged mode and for transmitting a directed message from said tag to an engaged external transceiver when said tag is in an engaged mode, the directed message and the engagement request including a status indicator indicating whether or not the tag is engaged with any external transceiver;

    a processor for bi-directional communication and for changing said engaged mode of said tag to the non-engaged mode, following a lost connection with said engaged external transceiver; and

    a receiver for receiving a response for said engagement request message from said external transceiver and for receiving an acknowledgement message to said directed message from said engaged external transceiver.

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