| 摘要 |
PURPOSE: A device for measuring minute length of a cellular phone is provided to measure width, groove depth, and length of an object by using an antenna and a DSP(Digital Signal Processor) sensor, and to display measured information on a screen, so that a user can precisely measure the object by using a cellular phone. CONSTITUTION: An antenna(1) designates length or width and a groove of an object to be measured. A DSP sensor(2) measures length extracted from the antenna(1), and outputs measurement data in accordance with the measured length. When a hook switch(5) is pressed in a minute distance measurement mode, a microprocessor(3) sets the extracted length of the antenna(1) to a reference point, and displays a measured distance on an LCD(4) based on the measurement data.
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