| 发明名称 |
Electrographic position location apparatus and method |
| 摘要 |
An apparatus for use in an electrographic position sensing system comprises an antenna system and a signal strength detector. In one embodiment, the antenna system comprises two antennas. The detector measures the signal strength from each antenna. A microprocessor contains an algorithm to calculate the position of the detector near the antennas.
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| 申请公布号 |
US7499036(B2) |
申请公布日期 |
2009.03.03 |
| 申请号 |
US20030661208 |
申请日期 |
2003.09.12 |
| 申请人 |
LEAPFROG ENTERPRISES, INC. |
发明人 |
FLOWERS MARK |
| 分类号 |
G06F3/041;G06F3/045;G01S5/02;G01S19/19;G01S19/36;G06F3/033;G06F3/044;G06F3/046;G06K11/06;G08C21/00;H01Q21/29 |
主分类号 |
G06F3/041 |
| 代理机构 |
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代理人 |
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| 主权项 |
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