Ultrasonic touch detection on stylus
US10606418B2 · kind B2 · utility
0Cited by
37References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 16, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Jun 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/0339
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An input device outfitted with one or more ultrasonic transducers can determine the location of one or more objects in contact with the input device. For example, the input device can include one or more transducers disposed in a ring around the circumference of the input device or in an array of rings along the length of the input device. The ultrasonic transducers can be used to detect the position of the one or more touching objects in at least one dimension, for example. In some examples, the one or more ultrasonic transducers can produce directional ultrasonic waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.