Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2011-06-28
2011-06-28
La, Anh V (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S555000, C340S007500, C340S539130
Reexamination Certificate
active
07969297
ABSTRACT:
Light sources are affixed at appropriate positions in a multilevel structure or in an obstructed environment. The light sources generate modulated light signals, such as controlled light-emitting diodes, which identify the positions of the light sources by their three-dimensional global positioning coordinates and/or equivalent representation that specifies their in situ locations in the environment. Mobile communication devices, upon receiving the light signals, can derive spatial positioning information and transmit such information to a remote location, such as an emergency response system.
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Camp, Jr. William O.
Haartsen Jacobus C.
Ingram Norbert Donald
Johnson Phillip Marc
La Anh V
Snyder, Clark, Lesch & Chung LLP
Sony Ericsson Mobile Communications AB
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