Invention Grant
- Patent Title: Method and system for managing the power state of an audio device integrated in a graphics device
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Application No.: US12234486Application Date: 2008-09-19
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Publication No.: US08347118B1Publication Date: 2013-01-01
- Inventor: David Wyatt , Mark Pereira , Boon Sun Song
- Applicant: David Wyatt , Mark Pereira , Boon Sun Song
- Applicant Address: US CA Santa Clara
- Assignee: NVIDIA Corporation
- Current Assignee: NVIDIA Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson & Sheridan, LLP
- Main IPC: G06F1/00
- IPC: G06F1/00 ; G06F1/26 ; G06F1/32 ; G06F15/16 ; G06F15/80 ; G06F13/14

Abstract:
One embodiment of the present invention sets forth a method for managing a power state of an audio device resident in a graphics processing unit. The method includes the steps of directing audio data originated from a client application via an audio path in an audio driver stack to the audio device, determining whether an active stream of audio data along the audio path is present in response to a notification of an attempt to shut down the graphics processing unit, and requesting a plug and play manager to disable the audio device, if no active stream of audio data is present along the audio path.
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