Method and apparatus for object detection using human echolocation for the visually impaired
US10690771B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2017 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Jun 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/521
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present device is an object detection device for assisting individuals with visual impairments to detect objects in front of him or her when walking or riding a bike. The device preferably includes an assistive device like a cane and an echolocation device coupled to the walking assistive device. When a user signals for the echolocation device to do so, the echolocation device uses a parametric array to generate a sound beam. If an object is in front of the user, the audible narrow sound beam reflects off of the object creating a strong, clear echo sound beam toward the user's ear. Because the user is preferably trained in echolocation, he or she is able to determine the distance, position, and possibly the type of object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.