Object location determination including writing pressure information of a stylus
US9229583B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2013 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Apr 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0418
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for determining a location of an object on a planar surface includes a time-of-flight sensor having sensing elements that provide a field of view for the time-of-flight sensor. The system also includes a mirror attached to the shaft of a motor for reflecting the field of view of the time-of-flight sensor across the planar surface. The system also includes electrical circuitry configured to receive range images from the time-of-flight sensor as the field of view is swept across the planar surface and process the range images to identify the object in at least one of the range images. The electrical circuitry is also configured to calculate a location of the object on the planar surface relative to the motor based on an angle of the shaft associated with the at least one range image and based on a distance of the object from time-of-flight sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.