Patent ID: 8335327
Filing Date: 2012-12-18
Classification: H03G

Abstract:
1. An apparatus, comprising: a DVD/CD reader port for coupling to a DVD/CD reader; a microphone input to receive audio signals from an external microphone; an MPEG decoder coupled to the DVD/CD reader port and the microphone input, the MPEG decoder having first and second output terminals; a processor coupled to the MPEG decoder, the processor to control the MPEG decoder; and a configurable amplifier coupled to the first and second output terminals of the MPEG decoder, wherein a first audio signal originating from the first output terminal is selectively amplified by the configurable amplifier circuit in accordance with a second signal originating from the second output terminal, wherein: when the external microphone is electrically coupled to the apparatus via the microphone input, the second signal has a first state indicating the presence of the external microphone and the first audio signal comprises a combination of information from the DVD/CD reader and a signal from the external microphone; and when the external microphone is not electrically coupled to the apparatus via the microphone input, the second signal has a second state indicating the absence of the external microphone and the first audio signal comprises information from the DVD/CD reader.