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    • 1. 发明授权
    • File management method, and memory card and terminal apparatus that make use of the method
    • 文件管理方法以及使用该方法的存储卡和终端装置
    • US07024532B2
    • 2006-04-04
    • US10211586
    • 2002-08-05
    • Yoshihiko TakagiYoshiaki NakanishiOsamu SasakiTsutomu Sekibe
    • Yoshihiko TakagiYoshiaki NakanishiOsamu SasakiTsutomu Sekibe
    • G06F12/00
    • G07F7/1008G06Q20/341G06Q20/3552G06Q20/35765
    • A file management method, whereby inconsistencies can be prevented between a file recorded in a memory card and the file management information that a terminal apparatus manages, without leaking the information of a file made and stored in an in-card processing system. According to this method, a flash memory accessible from two processing systems 100 and 300 is provided. First processing system 100 requests a reservation of an use area of flash memory 200a to second processing system 300, which, upon receiving the request, implements a reservation processing for an area of the memory section and reflects the information of the reserve area upon file management section 230. First processing system 100 performs the processing of writing data into the area reserved by second processing system 300. Inconsistencies between the file management information that a terminal manages and a file actually recorded into the memory section of a secure card can be prevented. Furthermore, exclusive control can be implemented, whereby there will be no direct access from a terminal to the area used for a card-dedicated file recorded therein by means of processing that takes place inside the card.
    • 一种文件管理方法,可以防止记录在存储卡中的文件与终端设备管理的文件管理信息之间的不一致性,而不会泄漏在卡内处理系统中制作和存储的文件的信息。 根据该方法,提供从两个处理系统100和300可访问的闪存。 第一处理系统100请求将闪存200a的使用区域预留到第二处理系统300,第二处理系统300在接收到请求时对存储器部分的区域执行预留处理,并将保留区域的信息反映到文件 管理部分230。 第一处理系统100执行将数据写入到由第二处理系统300保留的区域中的处理。 可以防止终端管理的文件管理信息与实际记录在安全卡的存储部分中的文件之间的不一致。 此外,可以实现专用控制,由此通过在卡内部进行的处理,不会从终端直接访问用于其中记录的卡专用文件的区域。
    • 6. 发明申请
    • DATA COMMUNICATION SYSTEM, DATA COMMUNICATION REQUEST DEVICE, AND DATA COMMUNICATION RESPONSE DEVICE
    • 数据通信系统,数据通信请求设备和数据通信响应设备
    • US20100142418A1
    • 2010-06-10
    • US12665079
    • 2009-05-13
    • Shinichiro NishiokaKeisuke SakaiMasayuki ToyamaTsutomu Sekibe
    • Shinichiro NishiokaKeisuke SakaiMasayuki ToyamaTsutomu Sekibe
    • H04B1/44
    • H04L5/14H04L5/1438H04L5/16H04W72/1247
    • The object of the present invention is to provide a data communication system in which a communication scheme is switched without a decrease in communication efficiency.In a data communication system including first and second devices that are capable of performing full-duplex communication and half-duplex communication via a set of channels connecting the first and second devices, the first device transmits, via the set of channels, to the second device a first communication flag indicating whether half-duplex communication is to be specified in accordance with a communication processing capability of the first device, the second device transmits, via the set of channels, to the first device a second communication flag indicating whether half-duplex communication is to be specified in accordance with a communication processing capability of the second device, and the first and second devices select either a full-duplex communication scheme or a half-duplex communication scheme depending on the first and second communication flags in compliance with a procedure predetermined between the devices and perform data communication in the selected communication scheme, the selected communication scheme conforming to the communication processing capability of each device.
    • 本发明的目的是提供一种在不降低通信效率的情况下切换通信方案的数据通信系统。 在包括能够经由连接第一和第二设备的一组通道执行全双工通信和半双工通信的第一和第二设备的数据通信系统中,第一设备经由一组信道发送到第二设备 设备指示是否根据第一设备的通信处理能力指定半双工通信的第一通信标志,第二设备经由该组信道向第一设备发送第二通信标志, 双向通信将根据第二设备的通信处理能力来指定,并且第一和第二设备根据第一和第二通信标志选择全双工通信方案或半双工通信方案,其符合 在所述设备之间预定的过程,并在所选择的通信中进行数据通信 离子方案,所选择的通信方案符合每个设备的通信处理能力。
    • 10. 发明申请
    • DECRYPTION DEVICE
    • US20080285750A1
    • 2008-11-20
    • US11838792
    • 2007-08-14
    • Osamu ShibataTaihei YugawaTsutomu SekibeYoshiyuki SaitoToshihiko Otake
    • Osamu ShibataTaihei YugawaTsutomu SekibeYoshiyuki SaitoToshihiko Otake
    • H04N7/167
    • H04L9/0894H04L2209/60
    • A decryption device includes: an internal-key storage section for storing an internal-key; a content-key storage section for storing a content-key; a determination section for determining whether or not a value of the content-key storage section in its initial state and a current value of the content-key storage section are different; and an operation section, the operation section including a first decrypting section which, when an encrypted content-key is input to the operation section, decrypts the encrypted content-key using the internal-key so as to obtain a content-key and stores the content-key in the content-key storage section, and a second decrypting section which, when an encrypted content is input to the operation section and the determination section determines that the value of the content-key storage section in its initial state and the current value of the content-key storage section are different, decrypts the encrypted content using the current value of the content-key storage section as a content-key so as to obtain a first output data and outputs the first output data to outside of the decryption device.
    • 解密装置包括:内部密钥存储部分,用于存储内部密钥; 内容密钥存储部分,用于存储内容密钥; 确定部分,用于确定内容密钥存储部分的初始状态的值和内容密钥存储部分的当前值是否不同; 以及操作部,所述操作部包括第一解密部,所述第一解密部在将加密内容密钥输入到所述操作部时,使用所述内部密钥对所述加密内容密钥进行解密,以获得内容密钥,并且存储 内容密钥存储部分中的内容密钥,以及第二解密部分,当加密内容被输入到操作部分并且确定部分确定内容密钥存储部分的值处于其初始状态和当前时间 内容密钥存储部的值不同,使用内容密钥存储部的当前值作为内容密钥来解密加密内容,以获得第一输出数据,并将第一输出数据输出到解密之外 设备。