Patent ID: 8306245
Filing Date: 2012-11-06
Classification: H03F,H03H

Abstract:
1. A multimode audio amplifier comprising: a mode controller configured to provide a control signal; at least one multimode module, wherein each of the multimode modules is configured to operate in one of a plurality of operating modes, wherein the operating modes are selected in response to the control signal, wherein changing the operating modes results in a measurable change in at least one characteristic of the multimode audio amplifier, and wherein the characteristics of the multimode audio amplifier include a variable-length finite impulse response (FIR) filter configured to provide an output signal based on an input signal, wherein a length of the variable-length FIR filter is selected in response to the control signal, wherein the length of the variable-length FIR filter represents at least one of wherein the variable-length FIR filter comprises