Handheld data capture system with power and safety monitor...

Details Handheld data capture system with power and safety monitor... Handheld data capture system with power and safety monitor...

2008-02-08

2010-06-08

Nguyen, Hung T. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S670000, C340S539100, C340S566000, C340S572100, C340S005610, C235S454000, C235S462300, C235S472010

Reexamination Certificate

active

07733238

ABSTRACT:
The present invention provide a motion detection circuit for a handheld item detection system, where the motion detection circuit includes an accelerometer outputting at least one signal corresponding to a measured acceleration. A differentiator differentiates the measured acceleration. A motion detection device evaluates a discriminated version of the acceleration and a discriminated version of the acceleration to determine whether the handheld item detection system is in motion. The present invention extends battery life and allows a handheld system to quickly enter an active operational mode without any user intervention other than handling (moving) the system.

REFERENCES:
patent: 7611061 (2009-11-01), Steele et al.
patent: 2006/0054708 (2006-03-01), Koo et al.
patent: 2006/0255139 (2006-11-01), Lee et al.

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