Option selection method and apparatus
US5257413A · kind A · utility
71Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Oct 10, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio circuit (10) provides for the selection of a mode of operation for the radio in response to sensing an external accessory (22, 22') including a speaker or an earpiece being connected to the radio circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.