The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2018
Filed:
Jun. 23, 2016
Amazon Technologies, Inc., Seattle, WA (US);
Tak Keung Joseph Lui, Bellevue, WA (US);
Alton Paul Werronen, Wauconda, IL (US);
Maju Cheruvallil Kuruvilla, Issaquah, WA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Techniques for tracking a location of an item retainer are described. In an example, a computer system may receive one or more signals from one or more devices. At least one device may be located at a distance from a radio frequency identification (RFID) reader. The RFID reader may be located at a space opening and may cover a read zone around the space opening. The signal(s) may indicate that a condition to activate the RFID reader is met. This condition may be associated with a state of the space opening or a proximity of an item retainer to the read zone. The computer system may activate the RFID reader based on the condition being met and may determine a progress of the item retainer through the space opening based on whether an RFID tag was read by the RFID reader while the RFID reader was activated.