Audio apparatus
US8948413B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2012 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Feb 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/1081
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An audio apparatus includes: a connector that supports a multipolar plug including a plurality of plug terminals, the connector having a plurality of connector terminals including an input terminal of an audio collection section and an output terminal that outputs a noise canceling signal; a signal amplification section that amplifies a combined signal generated by combining the noise canceling signal and a reproduction audio signal, the signal amplification section being provided on an audio signal line that connects the input terminal and the output terminal; a detection section that detects whether the multipolar plug is inserted or pulled out by detecting change of voltage of a voltage supply line connected to the audio signal line; and a suppression section that suppresses output from the signal amplification section when the multipolar plug is pulled out but does not suppress the output when the multipolar plug is inserted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.