Patent ID: 8344999
Filing Date: 2013-01-01
Classification: G06F,H04Q

Abstract:
1. A powerless electronic notepad comprising: a pad including: a plurality of piezoelectric elements arranged in a lattice pattern, each of the piezoelectric elements corresponding to an X coordinate and a Y coordinate; an upper surface disposed over the plurality of piezoelectric elements and configured to transmit kinetic energy from a stylus pressed against the upper surface to an underlying piezoelectric element; and an RFID tag including a memory configured to store X and Y coordinate data and an antenna configured to perform RFID communications, wherein, when the stylus presses against the top surface, the underlying piezoelectric element generates a voltage which supplies power to the memory, and data corresponding to the X and Y coordinates of the underlying piezoelectric element is transmitted to the RFID tag and stored in the memory.