Hands-free device
US6965787B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2002 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | Nov 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A hands-free device includes a cellular phone of a driver, driver's speakers that output sounds to the driver, front speakers and rear speakers that output sounds widely in a car, a detection unit that outputs a detection signal to indicate whether there is a fellow passenger in the car or not, and control equipment that communicates with the cellular phone. In the case that the control equipment receives a telephone communication voice signal indicating telephone conversation voice of another party of the telephone conversation from the cellular phone, based on the detection signal outputted from the detection unit, when the control equipment judges that there is no fellow passenger, the control equipment has the telephone conversation voice outputted mainly from the front speakers and the rear speakers, and when the control equipment judges that there is a fellow passenger, the control equipment has the telephone conversation voice outputted mainly from the driver's speakers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.