Calibration and detection techniques in haptic systems
US11189140B2 · kind B2 · utility
35Cited by
46References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2017 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Nov 2, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2215/03
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described is a system for producing an acoustic field from a plurality of ultrasonic transducer arrays, each of which has known relative positions and orientations. The acoustic field comprises a carrier wave and a modulated wave. The carrier wave has a plurality of modulated focal areas. A plurality of control points having a known spatial relationship relative to at least one of the plurality of ultrasonic transducer arrays is used. The plurality of ultrasonic transducer arrays are calibrated by using the relative position of each of the plurality of ultrasonic transducer arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.