05602919 is referenced by 143 patents and cites 4 patents.

This invention allows a user to have a smartcard (66) and a smartcard-based transponder (14). This smartcard-based transponder (14) can accept money from the smartcard (14). The amount transferred from the smartcard (66) can be stored in the transponder memory (80,82). At a toll plaza (29), a toll amount can be subtracted within a short period of time, so that a vehicle (26) bearing the transponder (14) will not pass through the zone in which the transponder (14) and the interrogator (12) may perform RF communications before an appropriate toll amount can be decremented from the amount stored within the transponder (14).

Title
Speedup for monetary transactions using a transponder in conjunction with a smartcard
Application Number
420849
Publication Number
5602919
Application Date
August 18, 1995
Publication Date
February 11, 1997
Inventor
Peter Wolfart
Neu-Anspach
DE
Anne Tip
McKinney
TX, US
Dwaine S Hurta
Garland
TX, US
Agent
Richard L Donaldson
James C Kesterson
Rebecca A Mapstone
Assignee
Texas Instruments Incorporated
TX, US
IPC
G08G 1/00
G07B 15/02
H04K 1/00
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