Acoustic wave generating apparatus and method
US7557471B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2008 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Jun 30, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tactile wave generating apparatus for generating amplified low frequency waves for transmission as tactile waves into a structure or a person's body. There is a housing in which is positioned a drive section that in turn comprises a magnet section that moves upwardly and downwardly as an inertial mass, two coils on opposite sides of the magnet and two flux path return plates for the coils. Each coil comprises upper and lower longitudinally aligned generally linear coil portions which drive the magnet section upwardly and downwardly. The magnet section is supported by upper and lower interconnecting sections that resiliently resist the up and down motion of the magnet section and restrain the magnet section to move up and down within close tolerances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.