Measuring and testing – Specimen stress or strain – or testing by stress or strain...
Reexamination Certificate
2007-03-06
2007-03-06
Noori, Max (Department: 2855)
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Reexamination Certificate
active
11061507
ABSTRACT:
Provided is an apparatus and method for sensing the opening and shutting by using a strain gauge. The apparatus and method can reduce power consumption by using an output value of an analog-to-digital converter based on an output voltage value to sense opening and shutting and supplying or shutting off power. The opening and shutting apparatus includes: a strain gauge having a resistance value which is varied as the strain gauge is deformed by an external force; a voltage distributor for distributing voltage to the strain gauge based on the resistance value; an analog-to-digital (A/D) converter for converting the voltage of the strain gauge into a digital output value; and a controller for controlling the power to be supplied to or shut off from predetermined elements of a wireless communication terminal by sensing the opening and shutting based on the output from the A/D converter.
REFERENCES:
patent: 6434404 (2002-08-01), Claxton et al.
patent: 2003/0092470 (2003-05-01), Kurakane
patent: 2003/0199290 (2003-10-01), Viertola
patent: 2004/0201988 (2004-10-01), Allen
patent: 2005/0208903 (2005-09-01), Sakamoto
Curitel Communications Inc.
Noori Max
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