System for identification using a transponder powered by solar cells
First Claim
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1. A system for identification of primarily man-made objects, comprising:
- a transponder (11) at the object (12) arranged to be energized by an essentially infrared light beam (13) at 700-1100 nm, and/or by visible light, where said transponder sends messages to a reader (14) via an information beam (15) at 700-1100 nm, the transponder is being powered by solar cells (16) in crystalline silicon or copper indium selenide and that said messages comprise a bit stream (17) where a bit is represented by a pulse burst (18) with a pulse repetition frequency higher than 30 kHz.
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Abstract
A system for identification of primarily man-made objects is described. A transponder at an object is arranged to be energized by an essentially infrared light beam at 700-1100 nm and sends messages to a reader via an information beam at 700-1100 nm. The transponder is powered by solar cells in crystalline silicon or copper indium selenide. The messages have a bit stream where a bit is represented with a pulse burst that has a pulse repetition frequency higher than 30 kHz.
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19 Claims
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1. A system for identification of primarily man-made objects, comprising:
a transponder (11) at the object (12) arranged to be energized by an essentially infrared light beam (13) at 700-1100 nm, and/or by visible light, where said transponder sends messages to a reader (14) via an information beam (15) at 700-1100 nm, the transponder is being powered by solar cells (16) in crystalline silicon or copper indium selenide and that said messages comprise a bit stream (17) where a bit is represented by a pulse burst (18) with a pulse repetition frequency higher than 30 kHz. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
Specification