发明名称 |
Guide marker and visual guide marker device |
摘要 |
A guide marker includes a substrate and a radio-wave reflecting unit for reflecting radio waves at certain intensity in all directions in a virtual plane, including the incident direction of the radio waves, the radio-wave reflecting unit being provided in the surface of the substrate. The radio-wave reflecting unit includes a concave and convex portions provided in the substrate or radio-wave reflectors which resonate at the frequency of incident radio waves and which reflect the radio waves in the incident direction. The radio-wave reflectors are mounted on the substrate. A visual guide marker device includes one of a light-reflecting component having a reflection characteristic and a light-generating component which self-generates light, and a guide marker including a dielectric material.
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申请公布号 |
US6882300(B2) |
申请公布日期 |
2005.04.19 |
申请号 |
US20030395145 |
申请日期 |
2003.03.25 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
NAKAMURA FUMINORI;TANIZAKI TORU;ISHIKAWA YOHEI;NISHIYAMA TAIYO |
分类号 |
H01Q1/32;H01Q15/00;H01Q15/14;(IPC1-7):H01Q15/00 |
主分类号 |
H01Q1/32 |
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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