EXCHANGING INFORMATION VIA RETRO-REFLECTION
Arrangements (1) for converting incoming first signals (2) into outgoing second signals (3) for transmitting information to devices (4) are provided with constructions (10) for making intensities of the second signals (3) dependent on angles of incidence of the first signals (2). The constructions (...
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Main Author | |
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Format | Patent |
Language | English French |
Published |
09.04.2009
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Subjects | |
Online Access | Get full text |
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