Audio playback device

An audio playback device operation method used in an audio playback device is provided that includes the steps outlined below. The audio playback device is electrically coupled to a host through a bus. A first audio playback device information corresponding to a first transmission bus format is sele...

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Bibliographic Details
Main Author PENG, CHUN-HAO
Format Patent
LanguageChinese
English
Published 01.04.2020
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:An audio playback device operation method used in an audio playback device is provided that includes the steps outlined below. The audio playback device is electrically coupled to a host through a bus. A first audio playback device information corresponding to a first transmission bus format is selected to response to the host according to a status descriptor request of the host. Whether audio control function descriptor request command is received from the host is determined. When the audio control function descriptor request command is received, the status descriptor request from the host is kept responding. When the audio control feature unit descriptor request command is not received, the host is determined to not support the first transmission bus format, the audio playback device is electrically coupled to the host through the bus again and a second audio playback device information corresponding to a second audio bus transmission format is selected to response to the host according to the status descri
Bibliography:Application Number: TW20187134169