Method and device to identify a periodic light source

Details Method and device to identify a periodic light source Method and device to identify a periodic light source

2008-04-15

2008-04-15

Lee, Benjamin C. (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S572100, C340S686600, C340S870030, C356S614000, C356S615000, C356S623000, C398S140000, C398S172000

Reexamination Certificate

active

07358854

ABSTRACT:
In a device for location positioning, and more particularly, in a system for identifying an environmental source emitting a base frequency and waveform signal, a sensor (101) records an environmental source (105) emitting a base frequency and waveform signal, the signal being amplified (102), digitized (103), processed and compared (104) with a stored unique waveform characteristic. On the basis of the comparison result(s), location positioning and/or a device orientation may be determined.

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