Invention Grant
- Patent Title: RFID loss-prevention based on transition risk
-
Application No.: US15811554Application Date: 2017-11-13
-
Publication No.: US10373115B1Publication Date: 2019-08-06
- Inventor: Christopher J. Diorio , Alberto Pesavento
- Applicant: Impinj, Inc.
- Applicant Address: US WA Seattle
- Assignee: Impinj, Inc.
- Current Assignee: Impinj, Inc.
- Current Assignee Address: US WA Seattle
- Agency: Turk IP Law, LLC
- Main IPC: G06Q10/08
- IPC: G06Q10/08 ; G06K19/07 ; G08B13/24 ; G06K19/077 ; G06K7/10

Abstract:
An RFID loss-prevention system (LPS) may monitor RFID-tagged items in a facility. An RFID reader transmits a first inventory command configured to cause tags in a first state to respond, receive a reply from a first tag, determine that the first tag has a low transition risk, and cause the first tag to switch to a second state. The reader may also receive a reply from a second tag, determine that the second tag has a high transition risk, and cause the second tag to remain in the first state. The reader may then transmit a second inventory command configured to cause tags in the first state to respond, receive a reply from the second tag in response to the second inventory command, determine that the second tag has inappropriately exited the facility, and issue an alert.
Information query