The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2006
Filed:
Apr. 15, 2003
Eric Gerbault, Vence, FR;
Eric Gerbault, Vence, FR;
ASK S.A., Valbonne, FR;
Abstract
A method for modification of data in a card transaction system having a memory card and a reader for reading the card. The card has a first memory (RAM) and a second memory (EEPROM) with data locations occupied by data recordings. Each transaction involves the modification of at least one of the data locations or the addition of a new recording. The method reads the address of a free location from a previous control register located in a first fixed location in the EEPROM memory, writes the new modified recording or addition in the free location, repeat the steps for each new recording to be modified or added, and writes in a second fixed location in the EEPROM memory a new control register containing the addresses of free locations within the EEPROM memory to use in the next transaction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile