Apparatus and method for reducing power consumption in a mobile unit
AssigneeQUALCOMM Incorporated
InventorLouis Dominic Oliveira
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Abstract
In a disclosed embodiment, a mobile unit includes a codec, a vocoder, and an audio decoder. The vocoder and the audio decoder provide respective outputs to an audio mux. A stereo/mono control unit receives an audio mux input from the audio mux. A control output generated by the stereo/mono control unit is coupled to a number of components in a receive audio processing path of the codec. By disabling at least one of the components in, for example, the right channel of the receive audio processing path of the codec, the control output of the stereo/mono control unit results in significant power savings. Such disabling can occur, for example, when the audio mux input received by the stereo/mono control unit contains voice signals, as opposed to music signals.
Claims21
A device adapted to communicate with an audio mux, the audio mux receiving a vocoder input from a vocoder and an audio decoder input from an audio decoder, the device comprising:
- a stereo/mono control unit coupled to a codec;
- the stereo/mono control unit receiving an audio mux input from the audio mux, the stereo/mono control unit providing a control output to the codec to reduce power consumption in the codec.
A method for processing received audio signals in a device, the method comprising:
- disabling a first channel in a receive audio processing path and enabling a second channel in the receive audio processing path when the audio signals comprise voice signals;
- and
- enabling the first channel in the receive audio processing path and enabling the second channel in the receive audio processing path when the audio signals comprise music signals.
Dependencies are inferred from the claim text.