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    • 5. 发明公开
    • GPS Pre-acquisition for geotagging digital photos
    • GPS预采集地理标记数字照片
    • EP3196672A1
    • 2017-07-26
    • EP17160948.0
    • 2008-01-28
    • BlackBerry Limited
    • TYSOWSKI, Piotr KonradNGO, Ngoc BichVANDEN HEUVEL, David Noel
    • G01S19/14G01S19/25H04N1/32H04N1/00
    • A handheld electronic device, such as a GPS-enabled wireless communications device with an embedded camera, a GPS-enabled camera-phone or a GPS-enabled digital camera, determines whether ephemeris data needs to be obtained for geotagging digital photos taken with the device. By monitoring user activity with respect to the camera, such as activation of the camera, the device can begin pre-acquisition of a GPS position fix by obtaining needed ephemeris data before the photograph is actually taken. This GPS pre-acquisition improves the likelihood that a position fix (GPS lock) is achieved by the time the photo is taken (to enable immediate geotagging). Alternatively, the photo can be geotagged retroactively by appending the current location to the metadata tag associated with the digital photo. An optional acquisition status indicator can be displayed on a user interface of the device to indicate that a position fix is being obtained.
    • 诸如具有嵌入式照相机的GPS使能的无线通信设备,具有GPS功能的照相电话或具有GPS功能的数字照相机的手持电子设备确定是否需要获取星历数据以对使用该设备拍摄的数字照片进行地理标记 。 通过监视相机的用户活动,例如激活相机,设备可以在实际拍摄照片之前通过获取所需的星历数据来开始预先获取GPS定位。 此GPS预采集提高了在拍摄照片时实现定位(GPS锁定)的可能性(以启用即时地理标记)。 或者,可以通过将当前位置附加到与数字照片相关联的元数据标签来追溯地图相片。 可选的采集状态指示器可以显示在设备的用户界面上以指示正在获取定位。