Method and apparatus for enhancing the generation of three-dimensional sound in headphone devices
US8160265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Aug 4, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A headphone device includes a first and a second ear piece coupled to an assembly, wherein the assembly facilitates the placement of the first and second ear piece in relation to a user's ears. A motion transducer is coupled to the first or second ear piece, whereby the motion transducer measures real-time pitch and roll movement associated with the user's head. An electronic compass is also coupled to the first or second ear piece, and measures real-time yaw movement associated with the user's head. A processing device associated with each of the first and second ear piece processes an audio signal according to a head-related-transfer-function selected from a plurality of head-related-transfer-functions on the basis of the measured pitch, roll, and yaw movement of the user's head. The processed audio signal is then applied to the first and second ear piece, and generates a virtual three-dimensional sound corresponding to the selected head-related-transfer-function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.