# US 2021/0241216 A1 · Item detection and transitions

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- Number: US 2021/0241216 A1
- Document ID: US20210241216A1
- Status: Published application
- Kind: A1
- Application number: 17/234,142
- Filed: 2021-04-19
- Published: 2021-08-05
- Earliest claimed: 2013-05-24
- Assignees: Amazon Technologies, Inc.
- Applicants: Amazon Technologies, Inc.
- Inventors: Varadarajan Gopalakrishnan; Subram Narasimhan; Omar FawazHashim Zakaria; Dilip Kumar; Sridhar Boyapati; Jin Dong Kim
- Web page: https://patentgrep.com/patent/US20210241216A1

## CPC

- G06Q 10/087: Inventory or stock management, e.g. order filling, procurement or balancing against orders
- G06Q 10/08772: {Inventory counting methods}
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR

## Abstract

This disclosure describes a system for managing inventory as it transitions into a materials handling facility, as it transitions between locations within a materials handling facility and/or as it transitions out of a materials handling facility. In some instances, a user (e.g., picker or picking agent) may retrieve an item from an inventory location and place the item into a tote. The systems described herein detect the item when it is added to or removed from the tote.

## Claims

### Claim 1

A computer-implemented method, comprising:
detecting at least one of a user or a tote in a transition area;
scanning, with an item identifier reader located in the transition area, at least a portion of the transition area to determine one or more items positioned in the transition area;
generating, based at least in part on the scanning, an item list indicating the one or more items;
presenting information corresponding to at least one of the one or more items to the user; and
transitioning the one or more items to the user, wherein transitioning includes charging the user for the one or more items.

### Claim 2 (depends on 1)

The computer-implemented method of claim 1, wherein scanning at least the portion of the transition area includes scanning the tote for the one or more items positioned in the tote.

### Claim 3 (depends on 1)

The computer-implemented method of claim 1, further comprising:
in response to detecting at least one of the user or the tote, obtaining an item identifier list associated with the user or the tote, the item identifier list indicating items picked by the user or included in the tote.

### Claim 4 (depends on 3)

The computer-implemented method of claim 3, further comprising:
comparing the item identifier list and the item list to determine whether the one or more items indicated on the item list correspond to items indicated on the item identifier list.

### Claim 5 (depends on 4)

The computer-implemented method of claim 4, further comprising:
determining a difference between at least one item indicated on the item list and the item identifier list; and
in response to determining the difference and prior to transitioning the one or more items to the user, resolving the difference.

### Claim 6

A system, comprising:
an antenna configured to detect a plurality of item identifiers;
a computing system in communication with the antenna, the computing system including:
one or more processors; and
a memory coupled to the one or more processors and storing program instructions that when executed by the one or more processors cause the one or more processors to at least:
scan, with the antenna, at least a portion of a transition area to determine one or more items positioned in the transition area;
generate, based at least in part on the scan, an item list indicating the one or more items;
present, to a user, information corresponding to the one or more items; and
transition the one or more items to the user, wherein the transition includes charging the user for the one or more items.

### Claim 7 (depends on 6)

The system of claim 6, wherein the program instructions, when executed by the one or more processors, further cause the one or more processors to at least:
detect at least one of the user or a tote in the transition area.

### Claim 8 (depends on 6)

The system of claim 6, wherein each item of the one or more items include a radio frequency identifier (“RFID”) that is detectable by the antenna.

### Claim 9 (depends on 6)

The system of claim 6, wherein the transition of the one or more items is part of a purchase of the one or more items by the user.

### Claim 10 (depends on 6)

The system of claim 6, wherein the transition of the one or more items is part of a rental of the one or more items.

### Claim 11 (depends on 6)

The system of claim 6, wherein the transition area is at an exit of a material handling facility.

### Claim 12 (depends on 6)

The system of claim 6, wherein the program instructions, when executed by the one or more processors, further cause the one or more processors to at least:
compare the item list with an item identifier list associated with at least one of the user or a tote to determine whether the one or more items indicated on the item list correspond to items indicated on the item identifier list; and
in response to a determination of a difference between the item list and the item identifier list, present the difference to at least one of the user or an operator.

### Claim 13 (depends on 12)

The system of claim 12, wherein the program instructions, when executed by the one or more processors, further cause the one or more processors to at least:
receive, in response to presentation of the difference, a resolution of the difference.

### Claim 14 (depends on 6)

The system of claim 6, wherein the program instructions that when executed by the one or more processors to transition the one or more items to the user further include instructions, that when executed by the one or more processors further cause the one or more processors to at least:
transition an association of an item identifier for each of the one or more items from an inventory position within a materials handling facility to the user.

### Claim 15 (depends on 6)

The system of claim 6, wherein the program instructions that when executed by the one or more processors to present information corresponding to the one or more items, further include program instructions that when executed by the one or more processors further cause the one or more processors to at least present the information on a display located in the transition area.

### Claim 16

A computer-implemented method for transitioning items of a materials handling facility, comprising:
under control of one or more computing systems configured with executable instructions,
receiving, from an antenna of a transition area, one or more item identifiers corresponding to one or more items positioned within the transition area of the materials handling facility;
determining a user positioned within the transition area; and
transitioning an association of the item identifier from a first inventory position within the materials handling facility to the user, wherein the transition includes charging the user for the one or more items.

### Claim 17 (depends on 16)

The computer-implemented method of claim 16, further comprising:
presenting, to the user, information about the one or more items.

### Claim 18 (depends on 16)

The computer-implemented method of claim 16, further comprising:
generating an item list that includes the one or more item identifiers;
comparing the item list with an item identifier list associated with the user, wherein the item identifier list includes item identifiers of items determined to have been picked by the user while the user was located in the materials handling facility;
determining a difference between an item identifier indicated on the item list and the item identifier list; and
presenting the difference to the user.

### Claim 19 (depends on 18)

The computer-implemented method of claim 18, further comprising:
receiving a resolution from the user confirming that an item corresponding to the item identifier is at the transition area; and
transitioning a second association of the item identifier to the user.

### Claim 20 (depends on 16)

The computer-implemented method of claim 16, further comprising:
detecting a tote identifier corresponding to a tote positioned within the transition area; and
wherein determining the user includes determining the user based at least in part on the tote identifier.