"Each voiceprint is unique but falls within a defined band so separate readers do not have to be developed for each chip," the story said. "However, MEMflakes can't be read with RFID readers currently on the market."
Startup Promises Hard-To-Duplicate RFID Chips
A difficult to duplicate RFID chip? That's the claim of an RFID startup, which is using MEMs resonators to create a unique signal, or "voiceprint," which can't be cloned and can be used to authenticate the chip, according to this RFID Update story.