G - Physics – 01 – G
Patent
G - Physics
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G
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G01G 9/00 (2006.01) G01G 19/40 (2006.01) G01G 23/37 (2006.01)
Patent
CA 1044715
MOTION DETECTOR FOR WEIGHING SCALE Abstract of the Disclosure A method of detecting motion of a weighing scale platform including the steps of periodically generating electric signals representing weight, transferring said weight signals to a memory, comparing said incoming weight signals with that previously stored in the memory prior to transfer of new weight signals, thereinto and generat- ing a motion signal whenever there are more than a pre- determined number of successive weight changes in the same direction. An apparatus for detecting motion of a weighing scale platform including means for periodically generat- ing electrical signals representing weight on the plat- form and means for temporarily storing these weight sig- nals in a shift register. The weight information is then transferred to a memory/display device. A comparator device connected between the shift register and the mem- ory provides either a greater than, or less than output, and the output of this device is stored in a direction sensor. A motion sensor is connected to both the com- parator and the direction sensor and provides an output whenever there are two successive weight changes in the same direction, i.e., when the comparator output and the direction sensor output are the same. The output of the motion sensor is connected to a retriggerable multi- vibrator which provides a motion signal of predetermined time duration. - 1 -
222512
Hobart Corporation
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