Amazon Technologies, Inc.

Emilia Sorana Buneci

Gur Kimchi

Dominique Imjya Brezinski

Cyrus John Durgin

Martin Matthew O'Reilly

Benjamin S Kirzhner

Lane R LaRue

Unnikrishnan Vadakkanmaruveedu

Sachin Rajendra Kothari

Brian C Beckman

George Nikolaos Stathakopoulos

Allan Ko

Vedran Coralic

Josephine Ammer Bolotski

John Raymond Brodie

Eric Berlinberg

Embodiments herein describe a system that includes a first Faraday cage defining a first aperture through which a first conveyor extends, a first wirelessly controlled machine disposed in the first Faraday cage, where the first wirelessly controlled machine is configured to transmit control signals using a first frequency range, a second Faraday cage defining a second aperture through which a second conveyor extends, and a second wirelessly controlled machine disposed in the second Faraday cage where the first wirelessly controlled machine is configured to transmit control signals using the first frequency range. Further, a portion of at least one of the first Faraday cage and the second Faraday cage is disposed between the first and second apertures.

Mitigating interference between wirelessly controlled machines using RF shielding

Embodiments herein describe a controller for a machine that wirelessly transmits a destination address to a robot which is tasked with transporting an item to the destination corresponding to the received address. Using the address, the robot can select a predefined path stored in its memory for that address. Because multiple robots can move items in the machine at the same time, the robots may collide if their predefined paths intersect. The machine can use a variety of different techniques to prevent collisions between the robots as the robots deliver items to different locations along their predefined paths.

Wireless communication with robots tasked with sorting items

RF shielding techniques are employed to prevent wireless signals transmitted from one machine from reaching another machine using the same frequency range. If the machines are spaced closely together, the wireless signals emitted by one machine may be received by the other, thereby causing interference. In one embodiment, one of the machines is placed in a Faraday cage which prevents it from transmitting wireless signals to, and receiving signals from, the other machine. In another embodiment, machines that use different channels are grouped into a first Faraday cage while machines that use the same channels as the machines in the first Faraday cage are placed in a second Faraday cage. In this manner, the machines in the two cages can reuse the same communication channels while being disposed proximate to each other in the shared space.

Techniques for calculating a sound received at a plurality of distances from an unmanned aerial vehicle (UAV) may be provided. For example, during delivery, the UAV may be associated with a sensor to obtain first sound information that corresponds to the sound generated by the UAV. A sensor associated with a landing marker may obtain second sound information about the sound generated by the UAV during flight and delivery of a payload to a location associated with the landing marker. In embodiments, the first sound information and the second sound information may be utilized to calculate sound metrics for the sound generated by the UAV and determine the sound received at a plurality of distances from the UAV during flight.

On-demand drone noise measurements

Techniques for user authentication are disclosed. In some situations, the techniques include receiving, from a client device, an authentication request to access a network resource, the request including a user identifier, obtaining a security credential associated with the user identifier contained in the received request, generating an authorization code based on the obtained security credential, providing to the client device instructions to obtain first information corresponding to the generated authorization code, receiving, from the client device, the first information provided in response to the provided instructions, and, when the first information received from the client device corresponds to at least a portion of the generated authorization code, authorizing the client device to access the network resource.

Techniques for user authentication

A plurality of phrases may be extracted from documents associated with one or more document sources. The plurality of phrases may be filtered and processed to determine a frequency in which the plurality of phrases appear in the documents and/or a number of the document sources in which each phrase appears. A weight may be assigned to each of the phrases and, based at least in part on the assigned weight, a visual representation of the plurality of phrases may be presented. The visual representation may be dynamically updated based at least in part on an updated frequency or an updated total number of document sources associated with any one of the plurality of phrases.

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Seattle, WA, United States of America

Emilia Sorana Buneci