Virtual image display and control method thereof
US11838730B2 · kind B2 · utility
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1References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 10, 2022 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Jan 10, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A virtual image display includes acoustic sensors and a controller, and a method is for operating the same. The acoustic sensors are for detecting the wind frequency information in the environment. The controller computes time points of the acoustic sensors receiving the wind frequency information, and computes wind direction information based on the time points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.