US 12,664,515 B1 · Command sequence for initiating inventorying

Abstract

Examples are directed to modifying RFID tag inventorying. A sequence of consecutive inventorying commands may be used to initiate an inventory round incorporating a selection functionality for efficient inventorying of large numbers of RFID tags. A command sequence may begin with a first inventorying command followed by one or more subsequent, consecutive inventorying commands, with each inventorying command defining a different filter criterion such that sub-group(s) of RFID tags identified by the combination of filter criteria may participate in the initiated inventory round. All inventorying commands in the sequence share a command code, but each inventorying command also has a starting signal and a continuation indicator, both used to begin, continue, and terminate the sequence.

Claims20

Dependent claims

A Radio Frequency Identification (RFID) integrated circuit (IC) configured to receive and process a sequence of consecutive inventorying commands, the sequence configured to initiate an inventory round, the IC comprising:

a transceiver configured to receive commands and send replies;
and
a processing block coupled to the transceiver and configured to:
receive, via the transceiver, a first command preceded by a first starting signal and including both a command code and a continuation indicator;
determine, from at least the command code and the continuation indicator, that the first command is a first inventorying command in the sequence;
receive, via the transceiver, a second command;
determine whether the second command is a second inventorying command in the sequence by at least determining whether the second command has the command code and is preceded by a second starting signal different from the first starting signal;
and
if the second command is the second inventorying command in the sequence, then one of initiate the inventory round and await a third command in the sequence, otherwise discard the sequence.

6 more elements

Dependencies are inferred from the claim text.

Command sequence for initiating inventorying

Life of this patent

Command sequence for initiating inventorying

Life of this patent

Abstract

Claims20