Amazon Technologies, Inc.

Pixel Qi Corporation

High Definition Integration Ltd.

Michael Bolotski

Daniel Buchmueller

Fabian Hensel

Joshua White Traube

Walker Chamberlain Robb

Nathan Stuart Friendly

Carlin Vieri

David Clarke

Phillip Walkemeyer

Danny Sekich

Wesley Caruso

Autonomous mobile robots for transporting carts are described. An example robotic cart transport system includes a cart for transport and a robotic transport. The robotic transport includes a transport cab and a load handler. The transport cab includes a drive system and a sensor array positioned over the transport cab. The load handler includes a load base supported by a directable caster wheel, a lift table positioned over the load base, a lift abutment anchor, and a lift drive. The robotic transport can autonomously position the load handler under a cart, and the lift drive can raise the lift table up and off of the top surface of the load base, to a lifted position seated against the lift abutment anchor. The lift table will contact and lift the cart in this motion, and the cart can be transported to a new location by the robotic transport.

Cart lift robotic transport

An illustrative battery charging device may identify a battery to be charged, and charge the identified battery using charge settings that are optimized for the identified battery. In some embodiments, the battery charging device may determine the optimized settings based on monitoring charging performance and discharge activities of the battery over time. The battery charging device may exchange data with a battery management service device, such as by exchanging battery health information, battery settings, and/or other data. The battery charging device may determine charge setting and times to charge a battery that is intended to power an unmanned aerial vehicle to complete a flight path.

Automatic battery charging

In an embodiment, a pixel driving circuit comprises: one or more source drivers for enabling a first subpixel of a subpixel pair to receive first data and a second subpixel of the subpixel pair to receive second data; one or more source drivers for driving the first data to the first subpixel and the second data to the second subpixel, wherein the first data is different than the second data.

Driving liquid crystal displays

A method of illuminating a pixel on a display to a desired brightness level that includes dividing a time required to reach a maximum brightness level into one or more time slices, varying a pixel voltage associated with the pixel according to a sequence of voltage values over the one or more time slices, and gradually increasing the brightness of the pixel according to the pixel voltage.

Methods and systems of pixel illumination

Growing community of inventors

Seattle, WA, United States of America

Michael Bolotski