发明名称 |
Optical communication system for stately home commentaries uses disposable terminals wavelength division language multiplexing |
摘要 |
The optical communications system has fixed transmitters (12) with diodes (20) of different wavelength for each language with Fresnel lens focussing separated by sector walls (16,18) sending to passive short term wide angle receivers (14) with earphone (94) in a portable card format |
申请公布号 |
FR2797539(A1) |
申请公布日期 |
2001.02.16 |
申请号 |
FR19990010482 |
申请日期 |
1999.08.13 |
申请人 |
COMPAGNIE DES INVENTIONS DE L'ATELIER DE L'INNOVATION |
发明人 |
CHARRON JEAN YVES;PANHELLEUX GERARD MARCEL PATRICK |
分类号 |
H04B10/00;H04B10/114 |
主分类号 |
H04B10/00 |
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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