Audio ramping technique for a radio
US5749056A · kind A · utility
10Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1995 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Aug 31, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/20
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An audio ramping technique (200) reduces acoustic shock in radio (100) that has multiple operating modes each having a different nominal audio speaker level. The ramping technique (200) sets the audio speaker level to the same initial sound pressure level (SPL) (208) regardless of the mode of radio operation and then ramps the audio level (216) until either a user initiated control signal (212) is received or the audio level reaches a maximum threshold level (210).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.