Hands-free telephone conversation system and relay device in hands-free telephone conversation system
US7031656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2002 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Jan 8, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A hands-free telephone conversation system includes a communication device having a microphone that receives a voice from a user, a speaker that outputs the other party's voice, a control unit that detects the status of the wireless communication, and a local wireless communication unit that wirelessly communicates with a relay device. The relay device includes a microphone that receives the voice from the user, a local wireless communication unit that wirelessly communicates with the communication device, a communication control unit that detects the status of the wireless communication, a microphone switch unit that switches the voice input reception of the microphone, and a network communication unit that sends and receives the voice to and from the other party's communication device through a network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.