Multi-transducer waveguide arrays
US9170686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2013 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Dec 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0436
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and related methods providing for touch sensors having segmented reflective arrays including waveguide cores are discussed herein. A touch sensor may include a substrate configured to propagate surface acoustic waves. The substrate may include two or more segmented reflective arrays. A segmented reflective array may include a major reflective array configured to propagate surface acoustic waves and a waveguide core configured to concentrate acoustic energy of the surface acoustic waves. Two segmented reflective arrays may further include adjacent portions that define an overlap region of the substrate. In some embodiments, the segmented reflective array may further include a beam dump configured to decrease intensity of surface acoustic wave propagation past the end of the segmented reflective array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.