Portable data carrier e.g. credit card of data communication system, has data carrier main structure in which mechanical wave produced due to mechanical vibration at different location is tactile perceived as confirmation of user input

摘要

The data carrier (1) has semiconductor chip (2) that is integrated in a data carrier main structure. The mechanical wave is produced to preset location of data carrier main structure due to mechanical vibration arises in data carrier main structure, and is spread to different location. The mechanical wave at different location of data carrier main structure is tactile perceived as confirmation of user input. Independent claims are included for the following: (1) method for displaying information for user by portable data carrier; and (2) data communication system comprising data carrier and reader.