Sound signal transmitter-receiver
US8379884B2 · kind B2 · utility
68Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2009 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Nov 1, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound signal transmitter-receiver includes a differential microphone for receiving sounds respectively at first and second points to convert the receiving sounds into a transmission sound signal; a transmission-reception unit for receiving an incoming signal as a reception sound signal; an addition unit for adding the reception sound signal from the transmission-reception unit and the transmission sound signal to produce an addition signal; and a speaker outputting sound based on the addition signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.