Portable computing device having a low power media player
First Claim
1. In a portable computing device, a method of converting audio from a digital representation to an analog representation, comprising:
- storing, into a random access memory element, a digital representation of said audio, wherein said storing is performed by way of a first processor;
halting operation of said first processor;
reading said digital representation of said audio from said random access memory element, wherein said reading is performed by way of a second processor; and
converting said digital representation of said audio to analog audio information.
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Accused Products
Abstract
A portable computing device includes a first processor which reads audio files from an internal or external storage media and stores the audio files in a random access memory element. After the audio files are stored, the first processor enters a low-power mode while a secondary processor reads the audio files from the random access memory element and presents the audio to a user. Occasionally, the first processor is brought out of the low-power mode in order to read new audio files from the storage media and store these in the random access memory element, thereby allowing the user to listen to the new audio.
149 Citations
35 Claims
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1. In a portable computing device, a method of converting audio from a digital representation to an analog representation, comprising:
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storing, into a random access memory element, a digital representation of said audio, wherein said storing is performed by way of a first processor;
halting operation of said first processor;
reading said digital representation of said audio from said random access memory element, wherein said reading is performed by way of a second processor; and
converting said digital representation of said audio to analog audio information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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13. In a portable computing device, a method of converting video from a digital representation to representation which can be viewed by a user, comprising:
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storing, into a random access memory element, a digital representation of said video, wherein said storing is performed by way of a first processor;
halting operation of said first processor;
reading said digital representation of said video from said random access memory element, wherein said reading is performed by way of a second processor; and
converting said video to a format which can be viewed by a user.
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19. A portable computing device which is capable of transmitting audio while operating in a low power mode, comprising:
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a first processor for storing a digital representation of said audio into a random access memory element;
an input to said first processor for receiving a sleep command, said sleep command serving to permit said first processor to enter a low power consumption mode; and
a second processor for reading said representation of said audio from said random access memory element and converting said representation of said audio into analog audio information.
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30. A program storage device readable by a machine, tangibly embodying a program of instructions executable by said machine to perform method steps for directing a portable computer to enter a low-power sleep mode and present audio to a user of said portable computer, said method comprising:
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storing, into a random access memory element, a digital representation of said audio, wherein said storing is performed by way of a first processor;
halting operation of said first processor;
reading said digital representation of said audio from said random access memory element, wherein said reading is performed by way of a second processor; and
converting said digital representation of said audio to analog audio. - View Dependent Claims (31, 33, 34, 35)
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Specification