DISPLAY INFORMATION MODULATION METHOD, INFORMATION PROCESSING DEVICE HAVING DISPLAY, AND DISPLAY INFORMATION MODULATION DEVICE

摘要

It is possible to prevent wire tapping of information via a leak of an electromagnetic wave when transmitting information by using an image display device.  When an image I is transmitted/received together with synchronization information Is, a transmitter S of the image I and the synchronization information Is modulates the image I to an image I' according to the synchronization information I's obtained by modulating the synchronization information Is and transmits the image I' to a receiver R of the image I and the synchronization information Is so that a third person cannot predict the image I.  The receiver R restores the image I from the modulated image I' and the synchronization information I's and displays the image I on a display device.