Search Results - sensors+%26+controls

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Total Energy Shaping for Task-Invariant Control of Lower-Limb Exoskeletons

We present a total energy shaping control methodology for the development of portable lower-limb assistive exoskeletons and orthotic devices that help reduce the human’s effort and augment natural motion. Current robotic exoskeletons restrict joint motion to pre-defined position trajectories during gait rehabilitation; such methods aim to replicate...

Published: 5/20/2020 | Inventor(s): Robert Gregg, Ge Lv

Keywords(s): Biocompatible, Devices, Electronics, Engineering & Physical Sciences, Mechanical Systems, Medical Devices, Research Tools, Sensors & Controls, Signal Processing, Software, Therapeutics, Transportation, Wireless

Category(s): Robotics, Healthcare, Control Strategy

A Lower Limb Powered Orthosis for Improved Rehabilitation Training

Physical training is often needed for patients to relearn how to walk after a stroke, or other neurological damage. However, the frequency and availability of physical training are limited by finite medical resources: most lower-limb rehabilitation orthoses are stationary and only available in a limited number of clinical settings, due to their large...

Published: 5/20/2020 | Inventor(s): Robert Gregg, Hanqi Zhu

Keywords(s): Electronics, Engineering & Physical Sciences, Medical Devices, Motors, Research Tools, Sensors & Controls, Therapeutics

Category(s): Devices, Healthcare, Robotics, Mechanical Systems

Virtual Body-Weight Support via Lower-Limb Exoskeleton

Summary:This is a novel control system for powered lower-limb exoskeletons (or orthoses) that provides body-weight support (BWS) for people who have sustained a stroke and other neurological injury. Patients are provided with BWS during conventional gait retraining to help them produce the coordinated muscle activities needed for walking. Although current...

Published: 5/20/2020 | Inventor(s): Robert Gregg, Ge Lv, Hanqi Zhu

Keywords(s): Biotechnology, Engineering & Physical Sciences, Life Sciences, Medical Devices, Motors, Research Tools, Sensors & Controls, Signal Processing, Therapeutics

Category(s): Electronics, Healthcare, Robotics, Control Strategy, Devices, Mechanical Systems

Amorphous Silicon Carbide Ultramicroelectrode Arrays for Neural Interfaces

The clinical ability to record and stimulate neural activity with implanted microelectrode arrays has been limited by the problems of insertion trauma and foreign body response (FBR), which can lead to neuron damage and reduced reliability. Minimizing this tissue response is necessary for the development of implantable interfaces for studying neural...

Published: 4/26/2019 | Inventor(s): Stuart Cogan, Timothy Gardner

Keywords(s): Biocompatible, Electronics, Engineering & Physical Sciences, Implantable, Life Sciences, Materials, Medical, Sensors & Controls, Therapeutics

Category(s): Research Tools, Devices, Healthcare

Twistron Mechanical Energy Harvesters

Mechanical energy harvesters are needed for diverse applications, including self-powered wireless sensors, structural and human health monitoring systems, automotive technologies, and the extraction of energy from ocean waves. Until now, few harvesters have been flexible enough to be used as yarns in textiles, and the performance of such yarns has been...

Published: 4/26/2019 | Inventor(s): Shi Hyeong Kim, Carter Haines, Na Li, Keon Jung Kim, Tae Jin Mun, Changsoon Choi, Jiangtao Di, Shaoli Fang, Seon Jeong Kim, Ray Baughman

Keywords(s): Automotive, Carbon Nanomaterials, Carbon Nanotubes, Electronics, Energy, Cleantech & Environmental, Engineering & Physical Sciences, Renewable Energy, Sensors & Controls, Textiles, Wireless

Category(s): Nanotechnology

Sheath-Core Fibers for Superelastic Electronics, Sensors, and Muscles

Summary:From fitness trackers to smart clothing, wearables are in high demand. Researchers at UT Dallas have invented a new class of elastic wires that can be woven into clothing or made into super-stretchy charger cords. Lighter-than-air, electrically conductive sheets of tiny carbon nanotubes are wrapped around a long rubber core to create conducting...

Published: 4/26/2019 | Inventor(s): Ray Baughman, Shaoli Fang, Carter Haines, Hongbing Lu, Dong Qian

Keywords(s): Biomaterials, Industrial & Manufacturing, Mechanical Systems, Medical Devices, Motors, Nanotechnology, Polymers, Robotics, Sensors & Controls, Textiles

Category(s): Materials, Electronics

Unified Lower-Limb Prosthetic Control Strategy

Non-Confidential Description: This technology defines a novel control strategy for a powered prosthetic leg that unifies the entire gait cycle, eliminating the need to switch between controllers during different periods of gait. Current control methods divide the gait cycle into several sequential periods with independent controllers, resulting...

Published: 5/20/2020 | Inventor(s): Robert Gregg, David Quintero, Anne Martin

Keywords(s): Biotechnology, Devices, Electronics, Engineering & Physical Sciences, Healthcare, Life Sciences, Mechanical Systems, Motors, Sensors & Controls, Therapeutics

Category(s): Biomedical, Control Strategy, Robotics

Improved Auto Exposure for Digital and Smartphone Cameras

This invention is an improved auto exposure (AE) method which, unlike existing AE methods, does not make a middle brightness assumption. As a result, this invention allows for better exposed images, in particular in poor lighting conditions such as front/back lit and low light scenes. The developed method has been implemented on a camera platform and...

Published: 4/26/2019 | Inventor(s):

Keywords(s): Multi Media, Optics & Photonics, Processes, Sensors & Controls, Signal Processing, Software

Category(s): Imaging