Amazon Technologies, Inc.

Alan Akiyoshi Nonaka

Ali Rahimi

Nathan Pius O'Neill

Paul Eugene Munger

James Stephanick

Robert M Riggs

Graham Cyril Jordan

Andrew James Pierce

Jacob Drewniak

Alexander Eugene Choi

Sergio Alfredo Phan Lung Li

Benjamin Hong Yee

David Bryan Michelman

Matthew Zimmer

Techniques for compensating signal data from first order high pass filters for exponential decay to extract and underlying step function associated with the signal data. The techniques include adjusting a time scale of the signal data using a charge amplifier. The techniques also include determining a dynamic neutral point for the signal data using an exponential decay function. The techniques further apply an inverse transfer function to remove decay from the signal data and generate a step function associated with the signal data.

Dynamic decay compensation for first order high pass filters

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.

Field-configurable capacitive mat

Growing community of inventors

Seattle, WA, United States of America

Alan Akiyoshi Nonaka