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US 11,429,829 B2Granted
Apparatus and method for improved reading of RFID tags during manufacture
OwnerLawrence Joseph Martininventor
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Abstract
An Apparatus and Method for reliably sorting RFID chips, in inlays, labels, tags or other units of manufacture, into rows and columns, and using that information to report their exact position on a moving web, in support of further manufacturing processes, in the presence of crosstalk, with speed and accuracy exceeding prior art.
Claims12
A method of determining a position of each member of a plurality of passive radio frequency identification (RFID) tags, on a moving web, in motion through an RFID manufacturing process, comprising:
- a. providing a plurality of RFID readers, each of said plurality of RFID readers coupled to one of a plurality of RFID antennas, performing a plurality of RFID tag read operations on said plurality of RFID tags in response to a plurality of trigger events from a sensor or an external control system,
- b. recording a plurality of RFID data from said plurality of RFID tag read operations,
- c. using a software algorithm to derive a pattern from said plurality of RFID data to determine a position of each of said plurality of RFID tags relative to each of said plurality of RFID antennas, including a plurality of positions that should hold one of said plurality of RFID tags, but in which position none of said plurality of RFID tags may be fixed, thus generating a list of bad RFID tag positions,
- d. generating an RFID tag position report for use in a further manufacturing process.
1 more element
Dependencies are inferred from the claim text.