Communication device having illuminated audio indicator
US6947555B2 · kind B2 · utility
3Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Jan 9, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/724
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio (100) provides multiple audio modes of operation, such as a cellular and dispatch modes. Illumination devices (108, 110) are located near the radio's audio sources (104, 106) and become activated to indicate to the user which mode of operation is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.