Apparatus and method for surface and subsurface tactile sensation imaging
US9652696B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2011 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Apr 1, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tactile sensor, computer readable medium, methods of using and manufacturing the tactile sensor, and methods and apparatuses for processing the information generated by the tactile sensor. The tactile sensor includes a planar optical waveguide comprised of a flexible and transparent layer; a light configured to direct light into the optical waveguide; a light sensor or an imager facing the optical waveguide and configured to generate signals from light scattered out of the optical waveguide; and a controller which may be configured to generate an image of the object and characteristics of the object. The waveguide may be configured so that some of the light directed into the optical waveguide is scattered out of the waveguide if the waveguide is deformed by being pressed against the object. A finite element and a neural network are used to estimate mechanical characteristics of the objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.