Method and system for hiding visible infrared markings

Details Method and system for hiding visible infrared markings Method and system for hiding visible infrared markings

2004-09-28

2008-08-05

Lee, Seung H (Department: 2887)

Registers

Coded record sensors

Particular sensor structure

C235S454000, C235S462010, C235S494000

Reexamination Certificate

active

07407106

ABSTRACT:
A marking carried by a physical object and discernible by an infrared (IR) sensor is at least partially concealed from the human eye. The marking is covered with a coating that is at least partially opaque in the visible spectrum and at least partially transparent in the IR spectrum (or other non-visible spectrum). The marking is thus not apparent to a human eye or to visible light sensors, while remaining discernible in the IR spectrum. Using the present invention to prevent a user from detecting the marking adds intrigue to the detection of the object, since the workings of the IR sensor that enable the sensor to identify the marking are not evident to a user. The present invention is also beneficially employed in games where it is desirable that an opponent be unable to see a marking that is detectable by the IR sensor.

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