Method for preventing interference of contactless card reader and touch functions when they are physically and logically bound together for improved authentication security

Abstract

A system for physically and logically integrating near field communication technology, touch sensor technology and display technology by using a more powerful near field communication antenna disposed under the touch sensor and display screen for transmitting, and a smaller near field communication antenna on top of the touch sensor for receiving near field communication signals.

What is claimed is: 
     
         1 .- 39 . (canceled) 
     
     
         40 . A system that integrates a touch sensor and near field communication antenna technology to provide communications in a touch sensitive portable electronic appliance, said system comprising:
 a display screen;   a touch sensor having a plurality of sensor electrodes disposed on top of the display screen to thereby create a touchscreen;   a transmitting near field communication antenna that shares the plurality of sensor electrodes for transmitting a signal through the touchscreen, and   a receiving near field communication antenna disposed under or inside the touchscreen for receiving a signal, wherein the receiving near field communication antenna is smaller than the transmitting near field communication antenna.   
     
     
         41 . (canceled) 
     
     
         42 . A system that integrates a touch sensor and near field communication antenna technology to provide communications in a touch sensitive portable electronic appliance, said system comprising:
 a display screen;   a touch sensor having a plurality of sensor electrodes disposed under the display screen to thereby create a touchscreen;   a transmitting near field communication antenna that shares the plurality of sensor electrodes for transmitting a signal through the touchscreen, and   receiving near field communication antenna disposed under or inside of the touchscreen for receiving a signal, wherein the receiving near field communication antenna is smaller than the transmitting near field communication antenna.   
     
     
         43 . (canceled)