Audio signal output apparatus, audio signal output method, program, and recording medium
US8233645B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jan 7, 2009 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Mar 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R7/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio signal output apparatus includes a driving unit and an output unit. The driving unit is configured to receive incident waves and generate a driving signal with the same phase as the incident waves. The output unit is configured to be driven by the driving signal and output waves with the same phase as the incident waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.