H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/28 (2006.01) H04B 10/00 (2006.01) H04B 10/02 (2006.01) H04B 10/04 (2006.01) H04B 10/06 (2006.01) H04B 10/14 (2006.01) H04B 10/26 (2006.01)
Patent
CA 2166255
A data transceiver employing optical radiation comprises transmitter assembly with an optical emitter operable in a first band and an optical emitter in a second band and a receiver assembly with a wide band optical detector which can receive signals transmitted via both the first and second band. In a second embodiment, the receiver includes both a wide band optical detector and a second optical detector which is operable in only one of the first and second bands, the receiver subtracting signals received at the second optical detector from those received at the wide band detector to separate signals received via the first and second bands. In a preferred aspect, the optical radiation employed is infrared radiation and the first and second bands are near and medium infrared bands.
Ingham Brian Richard
Taglione John V.
Ibm Canada Limited - Ibm Canada Limitee
Rosen Arnold
LandOfFree
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