Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2008-07-16
2010-02-02
Sohn, Seung C (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S226000, C250S559290, C345S169000
Reexamination Certificate
active
07655937
ABSTRACT:
Remote control systems that can distinguish predetermined light sources from stray light sources, e.g., environmental light sources and/or reflections are provided. The predetermined light sources can be disposed in asymmetric substantially linear or two-dimensional patterns. The predetermined light sources also can output waveforms modulated in accordance with one or more signature modulation characteristics. The predetermined light sources also can output light at different signature wavelengths.
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Hotelling Steven Porter
Kerr Duncan Robert
King Nicholas Vincent
Low Wing Kong
Apple Inc.
Kramer Levin Naftalis & Frankel LLP
Sohn Seung C
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