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    • 1. 发明授权
    • Position detecting apparatus and method of detecting a position
    • 位置检测装置和位置检测方法
    • US07778775B2
    • 2010-08-17
    • US11803321
    • 2007-05-14
    • Kunio OkadaShimpei Matsuda
    • Kunio OkadaShimpei Matsuda
    • G01C21/00G01S5/14
    • G01S19/24G01S19/34
    • CPU instructs RF controlling section to switch RF section from an inoperative mode to an operation mode and from the operation mode to the inoperative mode. When all of five pieces of sub-frame data have not been acquired, RF section is switched intermittently from the inoperative mode to the operation mode in synchronization with transmission of lacking sub-frame data, thereby acquiring such lacking sub-frame data. When all the five pieces of sub-frame data have been acquired, the current position is calculated using positional information contained in the sub-frame data. A part of five pieces of sub-frame data including the first to fifth sub-frame data transmitted from a satellite in a time series manner is acquired from GPS signal received in the operation mode, and the remaining part of the five pieces of sub-frame data is acquired in operation mode set at other timing, and then the positional information is judged based on the five pieces of sub-frame data acquired in the above manner.
    • CPU指示RF控制部分将RF部分从不工作模式切换到操作模式,并从操作模式切换到不工作模式。 当没有获取五个子帧数据的全部时,与缺少子帧数据的传输同步地,将RF部分从不工作模式间歇地切换到操作模式,从而获取这种缺少的子帧数据。 当已经获取了所有五条子帧数据时,使用包含在子帧数据中的位置信息来计算当前位置。 从操作模式中接收的GPS信号中获取包括以时间序列方式从卫星发送的第一至第五子帧数据的五个子帧数据的一部分,并且五个子帧的剩余部分 在其他定时设定的操作模式中获取帧数据,然后基于以上述方式获取的5条子帧数据来判断位置信息。
    • 2. 发明申请
    • Position detecting apparatus and method of detecting a position
    • 位置检测装置和位置检测方法
    • US20070219719A1
    • 2007-09-20
    • US11803321
    • 2007-05-14
    • Kunio OkadaShimpei Matsuda
    • Kunio OkadaShimpei Matsuda
    • G01C21/00
    • G01S19/24G01S19/34
    • CPU instructs RF controlling section to switch RF section from an inoperative mode to an operation mode and from the operation mode to the inoperative mode. When all of five pieces of sub-frame data have not been acquired, RF section is switched intermittently from the inoperative mode to the operation mode in synchronization with transmission of lacking sub-frame data, thereby acquiring such lacking sub-frame data. When all the five pieces of sub-frame data have been acquired, the current position is calculated using positional information contained in the sub-frame data. A part of five pieces of sub-frame data including the first to fifth sub-frame data transmitted from a satellite in a time series manner is acquired from GPS signal received in the operation mode, and the remaining part of the five pieces of sub-frame data is acquired in operation mode set at other timing, and then the positional information is judged based on the five pieces of sub-frame data acquired in the above manner.
    • CPU指示RF控制部分将RF部分从不工作模式切换到操作模式,并从操作模式切换到不工作模式。 当没有获取五个子帧数据的全部时,与缺少子帧数据的传输同步地,将RF部分从不工作模式间歇地切换到操作模式,从而获取这种缺少的子帧数据。 当已经获取了所有五条子帧数据时,使用包含在子帧数据中的位置信息来计算当前位置。 从操作模式中接收的GPS信号中获取包括以时间序列方式从卫星发送的第一至第五子帧数据的五个子帧数据的一部分,并且五个子帧的剩余部分 在其他定时设定的操作模式中获取帧数据,然后基于以上述方式获取的5条子帧数据来判断位置信息。