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：US12159756B1

公开(公告)日：2024-12-03

申请号：US17930657

申请日：2022-09-08

Applicant: AMAZON TECHNOLOGIES, INC.

Inventor： Andrew James Pierce ,  James Stephanick ,  Joshua Smith ,  Nathan P. O'Neill ,  Robert M. Riggs ,  Sergio Alfredo Phan Lung Li ,  Benjamin Hong Yee ,  Alan Akiyoshi Nonaka ,  Ali Rahimi ,  Graham Cyril Jordan ,  David Bryan Michelman

IPC: H01G5/16 ,  H01G5/015 ,  H01G5/40 ,  H01H36/00

Abstract: An apparatus comprising an array of electrical conductors connected to circuitry that determines data indicative of objects at particular locations based on capacitance at junctions of conductors in the array. The apparatus comprises a first set of conductors arranged on a first substrate and a second set of conductors arranged on a second substrate to form an array. The first and second substrates are separated by an air gap within which the electrical conductors are positioned. Each conductor may be independently addressable, having a proximal end connected to readout electronics and a distal end that is not. The apparatus may be cut, at the ends distal to where the conductors connect to the circuitry, to fit a desired location, such as on a store shelf, while remaining operational.