Headtracking system
US7864632B2 · kind B2 · utility
3Cited by
4References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2007 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Dec 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
System and method for tracking of a head comprising generating and radiating at least one acoustical test signal; receiving the radiated acoustical test signal(s) at two locations at the head under investigation and generating electrical measurement signals therefrom; and evaluating the two measurement signals for determining the position and/or angle of rotation φ from the measurement signals; the evaluation step comprises a cross power spectrum operation of the test signal(s) and the signals from the receivers in the frequency domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.