Amplifiers – With plural amplifier channels – Amplifying different frequencies in different channels
Patent
1996-12-16
1998-08-04
Mottola, Steven
Amplifiers
With plural amplifier channels
Amplifying different frequencies in different channels
330306, 381120, H03F 368, H03F 3191
Patent
active
057899770
ABSTRACT:
An audio amplifier (20) which includes an arrangement (300) for influencing an audio signal applied to the audio amplifier (20). This arrangement (300) has an amplifier for additionally amplifying a high-frequency range of the audio signal relative to the rest of the audio signal. This additional amplification takes place once a value of the audio signal has exceeded a limit value. The additional amplification only takes place for a brief period of time. The audio amplifier additionally amplifies high-frequency peaks in the audio signal for a brief period of time. The rising and falling slopes of these peaks are briefly enlarged as a result. Especially for pop music, this appears to be an attractive effect.
REFERENCES:
patent: 3605042 (1971-09-01), Rapp
patent: 3750044 (1973-07-01), Stanley
patent: 4539526 (1985-09-01), Davis
patent: 4797933 (1989-01-01), Hahne
patent: 5138665 (1992-08-01), Ito
patent: 5481617 (1996-01-01), Bjerre
Biren Steven R.
Mottola Steven
U.S. Philips Corporation
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