Earphone-microphone combination including a radio module and method of shifting its operational mode between telephone mode and radio mode
US6519475B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1999 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Oct 13, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/72409
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A device for enabling an earphone-microphone combination including a radio module to be used for a mobile phone, comprises a switching device for changing the operational mode of the radio module between telephoning mode and radio mode according to first and second mode selection signals, the radio module being muted in the telephoning mode, and a radio module interface connector connected with the hands-free kit interface connector of the mobile phone both to supply the power of the mobile phone battery to the radio module and to communicate the first and second mode signals and audio signals between the mobile phone and radio module or the earphone-microphone combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.