Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1995-08-31
1998-05-05
Urban, Edward F.
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455575, 4552001, 381107, H04B 116
Patent
active
057490562
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).
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Patterson Audley F.
Suarez Hector E.
Wadin Craig P.
Doutre Barbara R.
Motorola Inc.
Urban Edward F.
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