0147099-A2 is referenced by 41 patents and cites 10 patents.

A token handling device transmits, using an electro-magnetic carrier, data, clock pulses and power to a token. The token transmits data by varying the degree of absorption of the carrier in synchronism with the clock pulses. These data transmissions are detected by a receiver in the token handling device, the sensitivity of which is adjusted each time a token is received. The token could be used in transactions in place of coins, or alternatively could be used for identification purposes in other areas. Data stored by the token could be used to change the way in which the token handling device operates. The token handling device may for example form a vending machine, and the token could be used to alter the pricing of goods vended thereby.; The token handling device may be combined with a coin validator, in which case there is preferably a common path from an entrance slot for carrying both the tokens and the coins to appropriate testing apparatus.

Title
Tokens and token handling devices.
Application Number
EP19840308445 19841205
Publication Number
0147099 (A2)
Application Date
December 5, 1984
Publication Date
July 3, 1985
Inventor
Lewis Adrian
Eglise David
Assignee
Mars
US
IPC
G07F 07/08
G07F 01/06
G07F 07/08
G07F 07/00
G07F 01/00
G07C 09/00
G06K 19/077
G06K 19/04
G06K 07/01
G06K 07/00
G07D 05/00
G07F 07/08
G07F 07/02
G07F 07/00
G07F 01/06
G07C 09/00
G06K 19/077
G06K 19/04
G06K 07/01
G06K 07/00
G07D 05/08
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