发明名称 GPS positioning and returning device
摘要 A GPS positioning and returning device is provided. The GPS positioning and returning device comprises a compass, a GPS module, an input interface, a memory, a display module and a control module. A marked direction on the GPS positioning and returning device pointing to the cardinal point of North on the compass is a reference direction. Through an input from the input interface, a first control signal is generated. The first control signal is received by the GPS module through the control module so as to generate first coordinates; the first coordinates are then stored in the memory. The input interface may further input a second control signal. The second control signal is received by the GPS module so as to generate second coordinates. After a relative direction and distance between the first coordinates and second coordinates are calculated, the display module is driven to display the relative direction and distance.
申请公布号 US2009085804(A1) 申请公布日期 2009.04.02
申请号 US20070002660 申请日期 2007.12.18
申请人 LIN LIEN-CHEN 发明人 LIN LIEN-CHEN
分类号 G01S5/00;G01S19/14;G01S19/37 主分类号 G01S5/00
代理机构 代理人
主权项
地址