Acoustic navigation device and method of detecting movement of a navigation device
US7826310B2 · kind B2 · utility
8Cited by
2References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2007 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Aug 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/043
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A navigation device for navigating a user interface of a processor-controlled device includes an acoustic transmitter adapted to transmit an acoustic signal, an acoustic receiver adapted to receive the acoustic signal and located at a fixed position with respect to the acoustic transmitter, and a measurement circuit coupled to an output of the acoustic receiver and adapted to determine a distance traversed by the navigation device as a function of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.