公开(公告)号：US5627355A

公开(公告)日：1997-05-06

申请号：US422708

申请日：1995-04-13

申请人： Sam Rahman ,  James Magner ,  John Brown ,  Adarsh Pun ,  Grant Parker

发明人： Sam Rahman ,  James Magner ,  John Brown ,  Adarsh Pun ,  Grant Parker

IPC分类号： G06K19/07 ,  G06Q20/00 ,  G07F7/10 ,  G06K5/00

CPC分类号： G06K19/07 ,  G06Q20/00 ,  G06Q20/341 ,  G06Q20/3415 ,  G06Q20/347 ,  G06Q20/385 ,  G06Q20/4097 ,  G07F7/10 ,  G07F7/1008 ,  G07F7/1075

摘要： Security equipment protects the relaying of account numbers and personal identification numbers (PIN) by telephonic or other communication link. The equipment includes a host computer an a remote portable transaction device that interact. A credit granting institution generates an account number and a series of unique personal identification numbers for each account number. This information is stored in the host computer's memory and is assigned as a reference series to an individual customer account number. An identical series of numbers in the same sequence is stored in the memory of the remote device. In operation, the customer account on the host computer is activated and the host computer's memory is indexed sequentially to the first number in the reference series. During the use of the remote device, a unique personal identification number is added to the customer account number and transmitted to the host computer. There it is compared to the account number and personal identification number in the reference series. The computer will authorize the transaction if the number in the stored series is identical the number in the reference series. Otherwise the transaction will be denied or questioned.

摘要翻译： 安全设备通过电话或其他通信链路保护帐号和个人识别码（PIN）的中继。 该设备包括主计算机和远程便携式交易设备进行交互。 信用授予机构为每个帐号生成一个帐号和一系列唯一的个人识别号码。 该信息存储在主计算机的存储器中，并作为参考系列分配给个人客户帐号。 同一序列中相同的数字序列存储在远程设备的存储器中。 在操作中，主计算机上的客户帐户被激活，并且主计算机的存储器被顺序地索引到参考系列中的第一个数字。 在使用远程设备期间，将唯一的个人识别号码添加到客户帐号，并发送到主计算机。 与参考系列中的帐号和个人识别号进行比较。 如果存储系列中的编号与参考系列中的编号相同，则计算机将授权交易。 否则交易将被拒绝或质疑。

公开(公告)号：US5478994A

公开(公告)日：1995-12-26

申请号：US274252

申请日：1994-07-13

申请人： Sam Rahman ,  Jim Magner ,  John Brown ,  Adarsh Pun ,  Grant Parker

发明人： Sam Rahman ,  Jim Magner ,  John Brown ,  Adarsh Pun ,  Grant Parker

IPC分类号： G06K19/07 ,  G06Q20/00 ,  G07F7/10 ,  G06K5/00

CPC分类号： G07F7/1008 ,  G06K19/07 ,  G06Q20/00 ,  G06Q20/341 ,  G06Q20/3415 ,  G06Q20/347 ,  G06Q20/385 ,  G06Q20/4097 ,  G07F7/10 ,  G07F7/1075

摘要： A secure credit card 10 has a body member to which is attached a microprocessor controller 14 electrically coupled a Programmable Read Only Memory (PROM) device 18 programmed with a series of random numbers in a predetermined sequence. The random numbers are identical to random numbers in a host computer and in the identical sequence as the random numbers in the host computer. This computer is accessible upon each use of the credit card 10. The Programmable Read Only Memory (PROM) accesses the next random number in sequence with each use of the credit card 10 to permit verification by comparing the random number with each use of the credit card 10 with the next random number in sequence as indicated by the computer. A switch 20 actuated with each use of the credit card 10 provides a pulse signal that activates the microprocessor controller 14 to turn on the Programmable Read Only Memory (PROM) to access the next random number in the sequence. A counter 26 connected to the microprocessor controller 14 counts the number of pulse signals received to count each use of the credit card 10. A display device 24 displays the next Personal Identification Number (PIN) in the sequence each time a pulse is received.

摘要翻译： 安全的信用卡10具有主体部件，微处理器控制器14附加有一个主体部件，微处理器控制器14以预定顺序用一系列随机数编程的可编程只读存储器（PROM）装置18进行电耦合。 随机数与主计算机中的随机数相同，与主计算机中的随机数相同。 每个使用信用卡10可以访问该计算机。可编程只读存储器（PROM）依次使用下一个随机数字，每次使用信用卡10以通过将随机数与每次使用信用比较来进行验证 卡10与计算机所指示的顺序的下一个随机数。 每个使用信用卡10启动的开关20提供脉冲信号，其激活微处理器控制器14以接通可编程只读存储器（PROM）以访问序列中的下一个随机数。 连接到微处理器控制器14的计数器26对接收的脉冲信号的数量进行计数，以计数信用卡10的每次使用。显示装置24每当接收到脉冲时，按顺序显示下一个个人识别号码（PIN）。