Patent ID: 8434684

Claim:
A capacitive data body having a capacitive data that a string of data printed on a card, a paper and a label as a medium is electrostatic inductively read, the capacitive data comprising a plurality of electrode planes formed in multiple kinds of different predetermined widths formed being spaced apart from each other in one direction, non-electrode planes, and ground electrode planes formed between the electrode planes, wherein, when electrodes for reading data charged on the electrode planes and the non-electrode planes, and ground electrode planes are scanned in one direction or in a direction opposite to the one direction, a capacitor is formed between the electrode planes and the electrodes for reading data and a string of data is read by an electrostatic inductively change in voltage according to the width of the electrode planes, wherein the capacitive data further comprises a RF common electrode and a ground common electrode, the electrode planes are comb-like and protruded from the RF common electrode, the ground electrode planes are comb-like and protruded from the ground common electrode, and the electrodes for reading data comprise: a sensor electrode to be scanned on the electrode planes, the non-electrode planes, and the ground electrode planes; a RF electrode to be scanned on the RF common electrode; and a ground electrode to be scanned on the ground common electrode.