Use of handset microphone to enhance speakerphone loudspeaker performance
US7031455B2 · kind B2 · utility
6Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2001 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Jun 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M9/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A speakerphone incorporates a portion defining a loudspeaker cavity, the cavity containing a loudspeaker. The speakerphone also includes a handset with an internal microphone in the handset. The speakerphone has a housing adapted to receive the handset, and when it is thus received, the handset microphone is acoustically coupled to the loudspeaker cavity, allowing the handset microphone signal to be used to control feed-back or feed-forward algorithms that enhance the performance of the speakerphone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.