| 摘要 |
A portable media player has an orientation-responsive power conservation feature. The portable media player includes a casing, processor, visual display, audio display, main memory functionally coupled to the processor, and a secondary memory functionally coupled to the processor. Media content is retrievably stored in the second memory. An orientation sensor transmits signals to the processor responsive to a spatial orientation of the casing with respect to gravity. A program has instructions executable by the processor to: (a) present media content to a user by displaying visual content on the visual display and playing audio content through the audio display; and (b) reduce power consumption of the visual display by lowering an intensity of display output when the orientation sensor indicates the spatial orientation of the casing is within certain boundaries, for example inverted with respect to gravity, while continuing to play audio content normally through the audio display.
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