发明名称 |
GPS receivers with data ports for the uploading and downloading of absolute position information |
摘要 |
A GPS receiver comprises a data input/output port for communication of datum-less position fixes in an earth-centered, earth-fixed (ECEF) coordinate style to avoid the errors associated with not communicating the datum choice with latitude longitude data communication formats.
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申请公布号 |
US5450344(A) |
申请公布日期 |
1995.09.12 |
申请号 |
US19940232830 |
申请日期 |
1994.04.22 |
申请人 |
TRIMBLE NAVIGATION LIMITED |
发明人 |
WOO, ARTHUR;SPRAGUE, DAVID S. |
分类号 |
G01S1/00;(IPC1-7):G06F19/00 |
主分类号 |
G01S1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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