Optics: measuring and testing – Position or displacement
Reexamination Certificate
2011-04-05
2011-04-05
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
Position or displacement
C356S622000
Reexamination Certificate
active
07920276
ABSTRACT:
Apparatus for tracking an object (12A,12B,12C) including radiator modules (16A,16B,16C), disposed in an array of known locations adjoining a region (13) in which the object moves; each module includes at least one emitter (44, 46, 48) which emits a respective color selected from among a first plurality of colors. The apparatus includes a controller (32), which drives the at least one emitter to emit during a respective time slot, selected from among a second plurality of time slots during which the modules may emit. The apparatus also includes a location unit (22), fixed to the object and including at least one camera (72), which captures a sequence of electronic images containing some of the locations of the modules. The apparatus further includes a processing unit (26), which processes the electronic images to determine, responsively to the colors emitted by the modules and the time slots in which the colors are emitted, a location of the object.
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Braiman Michael
Efrat Itai
Eizenberg Rom
Chowdhury Tarifur
Duane Morris LLP
Pajoohi Tara S
Precyse Technologies, Inc.
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