Event-detection in multi-channel sensor-signal streams

Details Event-detection in multi-channel sensor-signal streams Event-detection in multi-channel sensor-signal streams

2011-08-09

2011-08-09

Charioui, Mohamed (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C702S182000, C702S183000, C702S188000

Reexamination Certificate

active

07996189

ABSTRACT:
Multiple parallel signal streams are produced by the sensors (20, 30, 40, 50) associated with a device (10). Events corresponding to real-world activities, contexts, environments, internal-states, uses, interactions and the like involving the device (10) can be detected in the multi-channel sensor-signal stream by evaluating how the pattern of coordination between the different sensors varies over time. The pattern of coordination between the sensors can be evaluated for a particular time period by computing an information distance matrix (IDM) for the sensor-signals generated during that time period. The IDM summarizes the normalized information distance between each possible pairing of the sensors.

REFERENCES:
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patent: 2002/0101632 (2002-08-01), Meckler
patent: 2005/0210027 (2005-09-01), Aggarwal et al.
patent: 2006/0107219 (2006-05-01), Ahya et al.
patent: 1 333 650 (2003-08-01), None

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