公开(公告)号：US11940320B1

公开(公告)日：2024-03-26

申请号：US17358617

申请日：2021-06-25

Applicant: Amazon Technologies, Inc.

Inventor： Sarang Sandeep Bhadsavle ,  Alexander Eugene Choi ,  Graham Cyril Jordan ,  Paul Eugene Munger ,  Robert M. Riggs ,  Benjamin Hong Yee ,  Matthew Zimmer

IPC: G01G19/414 ,  G01G23/18 ,  G06Q10/087

CPC classification number: G01G19/4144 ,  G01G23/18 ,  G06Q10/087

Abstract: A load sensor compares generated values of load signals to predicted values of the load signals. Where an error between a generated value and a predicted value is less than a threshold, a value of zero is transmitted by the load sensor to an external systems, in an encoded stream of bits, and the error are used to calculate a predicated value of a next load signal, such that insubstantial changes in loading resulting in small errors are not transmitted to the external system. Where an error between the generated value and the predicted value exceeds the threshold, however, a value representative of the error is transmitted to the external system, in an encoded stream of bits. The external system processes the stream of bits to calculate the error, to determine that an item has been placed on a storage system or removed therefrom, or to identify the item.

公开(公告)号：US11796378B1

公开(公告)日：2023-10-24

申请号：US17304776

申请日：2021-06-25

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Robert M. Riggs ,  Andrew James Pierce ,  Cody Ryder Volk ,  Alexander Eugene Choi ,  Rafiuddin Arif Ahud ,  Graham Cyril Jordan ,  Paul Eugene Munger ,  Jacob Drewniak

IPC: G01G3/13 ,  G01G19/414 ,  G06Q10/08 ,  G06Q10/087

CPC classification number: G01G3/13 ,  G01G19/4144 ,  G06Q10/087

Abstract: An apparatus includes a platform or other accessory that is supported by one or more transducer assemblies using piezoelectric transducers. In one implementation, a saddle structure provides mechanical support to a platform while transferring force from a load onto a portion to which a pair of piezoelectric transducers are affixed. As a load on the saddle changes, the resulting change in strain on the portion produces signals from the piezoelectric transducers. In another implementation a beam provides mechanical support to a platform or other accessory. A pair of piezoelectric transducers are affixed near a strain concentrator, such as a hole in the beam, produce signals indicative of a change in load on the beam.

公开(公告)号：US11410122B1

公开(公告)日：2022-08-09

申请号：US16779032

申请日：2020-01-31

Applicant: Amazon Technologies, Inc.

Inventor： Matthew Ray DesJardien ,  Kenneth Edward Doe ,  Dan Beltzer ,  Andrew James Pierce ,  Alexander Eugene Choi ,  Jacob Drewniak ,  Paul Eugene Munger ,  Robert M. Riggs ,  Stavan Dholakia ,  Mike Mosman ,  Sergio Alfredo Phan Lung Li

IPC: G06Q10/08 ,  G06K7/14 ,  G06V10/141 ,  G06V20/10 ,  F25D27/00 ,  F25D29/00

Abstract: An impulse strip including a plurality of clips, hooks or other features for attaching items to the impulse strip also includes a plurality of switches associated with each of the clips, hooks or other features. The switches are in communication with illuminators or other indicators that are arranged in an array. When an item is loaded onto the strip, or removed from the strip, a switch may be opened or closed, causing one of the illuminators in the array to be activated or deactivated accordingly. An image captured of the illuminators is processed to determine which of the illuminators is activated and which is deactivated, and an inventory level of the strip may be determined based on the statuses of the respective illuminators corresponding to the clips, the hooks or the other features of the impulse strip.