Material identifying system and related identifying method
AssigneeHimax Technologies Limited
InventorsJui-Ni Li, Yaw-Guang Chang
Life of this patent
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Abstract
A material identifying system includes an identifying panel, a voltage source and a determining circuit. The voltage source is arranged to transmit a voltage signal to an object to be identified via the identifying panel in order to obtain an impedance of the object, wherein the voltage source adjusts a frequency of the voltage signal in a predetermined range to find a specific frequency in the predetermined range where the impedance of the object is minimum. The determining circuit is arranged to determine if the specific frequency of the object to be identified matches any specific frequency of a plurality of known materials in order to identify a material of the object.
Claims15
A material identifying system, comprising:
- an identifying panel;
- a voltage source, arranged to transmit a voltage signal to an object to be identified via the identifying panel in order to obtain an impedance of the object, wherein the voltage source adjusts a frequency of the voltage signal in a predetermined range to find a specific frequency in the predetermined range where the impedance of the object is minimum;
- and
- a determining circuit, arranged to determine if the specific frequency of the object to be identified matches any specific frequency of a plurality of known materials in order to identify a material of the object.
A material identifying method, comprising:
- transmitting a voltage signal to an object to be identified via an identifying panel in order to obtain an impedance of the object;
- adjusting a frequency of the voltage signal in a predetermined range to find a specific frequency in the predetermined range where the impedance of the object is minimum;
- and
- determining if the specific frequency of the object to be identified matches any specific frequency of a plurality of known materials in order to identify the material.
Dependencies are inferred from the claim text.