Control arrangement for radio apparatus
US4495652A · kind A · utility
16Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1983 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Feb 28, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M19/042
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Radiotelephone loudspeaker and handset volumes for different types or modes of operation are set by a single control and stored. After being set and stored, the volume for each mode can be retrieved and applied to an electronic attenuator to automatically provide the desired volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.