System and Method for Remote Use of Information Handling System Audio Components
First Claim
1. A method for presenting audio information at an information handling system audio subsystem, the method comprising:
- interfacing the information handling system with a portable audio device through a serial link;
processing digital audio files at the portable audio device to generate an analog audio signal;
sending the analog audio signal through the serial link to the information handling system audio subsystem; and
presenting the analog audio signal as audible sound from the audio subsystem.
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Accused Products
Abstract
An information handling system plays audio provided from a portable audio device at an information handling system audio subsystem in operating and powered down states of the information handling system. In the operating state, digital audio information is communicated from the portable audio device through a serial link for rendering at the information handling system into an analog audio signal presented by the audio subsystem. In the powered down state, digital audio information is rendered at the portable audio device and communicated as an analog audio signal through the serial link to the information handling system. A system module at the information handling system selectively switches the serial link to interface with the audio subsystem and play the analog signal as audible sounds. The system module supplies power to the audio subsystem to support playing the analog signal with the information handling system in the powered down state.
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Citations
20 Claims
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1. A method for presenting audio information at an information handling system audio subsystem, the method comprising:
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interfacing the information handling system with a portable audio device through a serial link; processing digital audio files at the portable audio device to generate an analog audio signal; sending the analog audio signal through the serial link to the information handling system audio subsystem; and presenting the analog audio signal as audible sound from the audio subsystem. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for presenting audio information at an information handling system connected by a serial link to a portable audio device, the system comprising:
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a player module associated with the portable audio device and operable to selectively interface analog or digital output of the portable audio device with the link; and a system module associated with the information handling system and operable to selectively interface an audio subsystem or a link controller of the information handling system with the link; wherein the player module is further operable to detect a power down state at the information handling system and to interface the analog output with the link; and wherein the system module is further operable to detect a power down state at the information handling system to interface the analog output with the audio subsystem to present the analog output as audible output from the audio subsystem. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An information handling system comprising:
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a CPU operable to process information; memory interfaced with the CPU and operable to store the information; a device interfaced with the CPU and operable to perform a predetermined function with the information; a power supply operable to supply power to the CPU, the memory and the device; a serial link interfaced with the CPU and operable to connect through a serial link cable with an external device to communicate digital information between the CPU and the external device; and a system module interfaced with the serial link and the device, the system module operable to selectively interface digital information received over the link with the CPU and analog information received over the link with the device. - View Dependent Claims (16, 17)
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18. The information handling system of claim 18 wherein the system module is further operable to:
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detect transition from the power down state to an operating state; communicate a request at the serial link to send digital audio information instead of analog audio information; and interface the CPU with the serial link to render the digital audio information. - View Dependent Claims (19, 20)
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Specification