Tiered radio frequency identification
Abstract:
Methods and apparatuses for tiered RFID communication are provided, inter alia, for privacy and security in at least certain embodiments. An RFID tag includes first and second memory locations respectively storing first and second identifiers. The tag is configured to respond to an identification query with the first identifier until receipt of a command code. After receipt of the command code, the tag is configured to respond to the identification query with the second identifier. The first identifier can be permanently disabled for privacy. In a one embodiment, the first identifier is an electronic product code, and the second identifier is a recycling identifier, hazardous waste information, or regulatory disposal requirement. In another embodiment, the first and second identifiers can identify the tag's associated item with differing levels of specificity for improved security.
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