Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1996-08-14
1998-09-15
Tarcza, Thomas H.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 23, 340928, 342 42, 342 51, H04L 900, G01S 1376
Patent
active
058091424
ABSTRACT:
A system and method in which a transponder (14) is operable to transmit an original user account balance to an interrogator (12), which in turn calculates a revised user account balance and transmits the revised user account balance to the transponder (14). In one embodiment of the invention, the transponder (14) is further operable to transmit a verification user account balance back to the interrogator (12), which then compares verification user account balance to the revised user account balance that was earlier calculated and stored in an interrogator memory.
REFERENCES:
patent: 3602881 (1971-08-01), Bayne
patent: 4104630 (1978-08-01), Chasek
patent: 4207468 (1980-06-01), Wilson
patent: 4303904 (1981-12-01), Chasek
patent: 5086389 (1992-02-01), Hassett et al.
patent: 5144553 (1992-09-01), Hassett et al.
patent: 5164732 (1992-11-01), Brockeslby et al.
patent: 5204675 (1993-04-01), Sekine
patent: 5310999 (1994-05-01), Claus et al.
patent: 5351187 (1994-09-01), Hassett
patent: 5424727 (1995-06-01), Shieh
patent: 5485520 (1996-01-01), Chaum et al.
Frazee Francis B.
Hurta Dwaine S.
Donaldson Richard L.
Kesterson James C.
Lake Rebecca Mapstone
Tarcza Thomas H.
Texas Instruments Incorporated
LandOfFree
Method and system for calculating a user account balance in a re does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for calculating a user account balance in a re, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for calculating a user account balance in a re will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-97209