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    • 1. 发明授权
    • Enhanced guidance for electronic devices having multiple tracking modes
    • 对具有多种跟踪模式的电子设备的增强指导
    • US08624725B1
    • 2014-01-07
    • US13241031
    • 2011-09-22
    • Christopher S. A. MacGregor
    • Christopher S. A. MacGregor
    • G08B21/00
    • H04W4/02H04W4/026H04W4/029H04W12/06
    • The location of an electronic device can be tracked and updated in order to provide a user of the device accurate directions from the user's current location to a target location, for various types of environments. Upon detecting a trigger (e.g., detecting a QR code or detecting an access point signal), an example device can switch from using a first type of positioning element (e.g., GPS) to a second type of positioning element (e.g., using accelerometers, QR codes, etc.) in determining the user's current location. By using the appropriate type of positioning element for each environment, the device may determine the user's current location more accurately. The device may provide an overlay (e.g., arrows) for displaying the directions over images captured from the user's surroundings to provide a more realistic and intuitive experience for the user.
    • 可以跟踪和更新电子设备的位置,以便为各种类型的环境提供设备的用户从用户的当前位置到目标位置的精确方向。 在检测到触发(例如,检测QR码或检测接入点信号)时,示例设备可以从使用第一类型的定位元件(例如,GPS)切换到第二类型的定位元件(例如,使用加速度计, QR码等)确定用户的当前位置。 通过为每个环境使用适当类型的定位元件,设备可以更准确地确定用户的当前位置。 该设备可以提供用于在从用户的周围环境捕获的图像上显示方向的覆盖(例如,箭头),以为用户提供更现实和直观的体验。