Multifunction transducer
US7421088B2 · kind B2 · utility
22Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2003 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Apr 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Multi-function transducers (130, 700) that are suitable for use in handheld devices such as cellular telephones (100, 900) and are capable of emitting audio, and generating accelerations of sufficient magnitude, and at frequencies that can be sensed by tactile sensation and which exhibit resonant modes that are characterized by center frequencies within a frequency range that can be sensed by tactile sensation, and specifically located between two musical notes on a musical scale are provided. Devices (100, 900) including such transducer are provided, and methods of operating such transducers are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.