Patent ID: 7202804
Filing Date: 2007-04-10
Classification: H03M

Abstract:
1. A digital signal processing amplifier comprising: an A/D converter for converting an analog input signal from a source device into a digital signal; a digital signal processing portion for processing the digital signal output from the A/D converter; a D/A converter for converting the processed digital signal output from the digital signal processing portion into an analog signal; a power amplifier for amplifying the analog signal output from the D/A converter into a driving signal for a speaker; and a controller, wherein the controller is operable to monitor the analog input signal, the digital signal output from the A/D converter, and the processed digital signal output from the digital signal processing portion so as to detect an excessively strong signal or an overflow and transmit a control signal to the source device so that a signal level of the analog input signal is suppressed.