Invention Grant
US09521489B2 Operation using positioning information 有权
使用定位信息进行操作

Operation using positioning information
Abstract:
Operation of a playback device may be based on using position information. A position of a playback device with respect to a base is determined. The determined position is compared to a reference position. If the determined position corresponds to the reference position, operation of the playback device is allowed. If the determined position does not correspond to the reference position, operation of the playback device is limited.
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