Original Publication Date: 2003-Feb-13
Included in the Prior Art Database: 2003-Feb-13
AbstractDisclosed is a programmable smart coin or token which has electronics within to store its nominal value and other related information.
Disclosed is a programmable smart coin or token which has electronics within to store its nominal value and other related information. The smart coin uses its two faces as terminals for power and signals simultaneously for its electronics when it is engaged with a coin reader and has a display to show its nominal value which can be reprogrammed.
An exemplary programmable coin with liquid-crystal display is shown in Fig. 1 in three-dimensional view. The cross-sectional view of the programmable coin in Fig. 2 shows a typical structure and components inside the coin. A thin circuit board 11 is mounted on the inner surface of the metal plate 21 which has the usual embossment on the outer surface. All of the electronics 12 are placed on the circuit board 11. Terminal 13 from the circuit board 11 is soldered on the inner surface of the metal plate 21 which will provide one of the electrical connections for the electronic circuits to the coin reader or programmer. The terminal 14 of the circuit is held vertically on the circuit board 11. The terminal 14 is in hook-like shape and made from spring materials such that it will provide a good electrical contact when it is inserted in the socket 24 on the metal coin base 22. A liquid-crystal display 15 is placed and epoxied in a slot in the metal plate 21. The metal plate 21 with the electronics will be joined to the coin base 22 using epoxies 23. Some standoffs may be applied at the joints to ensure that t...