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    • 5. 发明授权
    • Calculation device and calculation method
    • 计算装置及计算方法
    • US07392272B2
    • 2008-06-24
    • US10480803
    • 2003-04-18
    • Hiromi MatsudaMiki AbeEiichiro MorinagaMasao Tanaka
    • Hiromi MatsudaMiki AbeEiichiro MorinagaMasao Tanaka
    • G06F7/38
    • H04L9/0877H04L2209/60
    • An arithmetic unit and an arithmetic method that output no information necessary for decryption or encryption to the outside and can perform a self-protecting function when an illegal attack is made. A command monitoring part (44) monitors input command sequences. In a first sequence, a process key in a first stage is calculated from a hardware key (Khd) and is then written to a key storing part (47). In each of the following sequences, a process key in a next stage is calculated from a process key stored in the key storing part (47). When commands of predetermined contents are inputted in predetermined order, a content key is calculated and then written to the key storing part (47). Encrypted data is decrypted with the content key, and the result is outputted from data output means (63). When an illegal attack is made, initialization is performed by selecting fixed value data (Kf) as key data (Ksl) and selecting fixed value data (Df) as input data (Ein).
    • 一种算术单元和算术方法,其不向外部输出解密或加密所需的信息,并且可以在进行非法攻击时执行自我保护功能。 命令监视部分(44)监视输入命令序列。 在第一序列中,根据硬件密钥(Khd)计算第一级中的处理密钥,然后将其写入密钥存储部分(47)。 在以下每个序列中,从存储在密钥存储部分(47)中的处理密钥计算下一级中的处理密钥。 当以预定顺序输入预定内容的命令时,计算内容密钥,然后将其写入密钥存储部分(47)。 加密数据用内容密钥解密,结果从数据输出装置(63)输出。 当进行非法攻击时,通过选择固定值数据(Kf)作为密钥数据(Ksl)并选择固定值数据(Df)作为输入数据(Ein)来执行初始化。
    • 8. 发明授权
    • Device control method, data transfer apparatus and recording medium
    • 设备控制方法,数据传输设备和记录介质
    • US06959366B2
    • 2005-10-25
    • US10363299
    • 2002-06-27
    • Miki AbeTakafumi HosoiEiichiro MorinagaMasao Tanaka
    • Miki AbeTakafumi HosoiEiichiro MorinagaMasao Tanaka
    • G06F3/06G06F21/24G10K15/02G11B20/00G11B20/10G06F13/14
    • G11B20/10G06F3/0601G06F2003/0697G10K15/02G11B20/00086G11B20/0021
    • A data transfer apparatus for simplifying a module structure for controlling a connected data recording apparatus and improving the processing efficiency. A control code issued by a common application module having a main purpose of check-out/check-in is made a control code corresponding to a device connected by a conversion module and transmitted via a device driver. Moreover, for example, a control code issued by a local application module having a main purpose of controlling processing depending on a device connected shares the aforementioned device driver. For example, the local application module issues a control code in a state matched with a control code format converted by the conversion module. Alternatively, the local application module issues a local control code by indicating issuance of a local control code of a format different from the control code format converted by the conversion module.
    • 一种用于简化用于控制连接的数据记录装置的模块结构并提高处理效率的数据传送装置。 由具有检出/登记的主要目的的通用应用模块发出的控制码是与由转换模块连接并通过设备驱动程序发送的设备相对应的控制码。 此外,例如,具有主要目的的本地应用模块发出的控制代码,该控制代码根据连接的设备来控制处理共享上述设备驱动程序。 例如,本地应用程序模块发出与由转换模块转换的控制代码格式匹配的状态的控制代码。 或者,本地应用模块通过指示发布不同于由转换模块转换的控制代码格式的格式的本地控制代码来发出本地控制代码。
    • 10. 发明授权
    • Analogue to digital converter
    • 模数转换器
    • US4649372A
    • 1987-03-10
    • US556710
    • 1983-11-25
    • Miki AbeTadao Suzuki
    • Miki AbeTadao Suzuki
    • H03M1/52H03M1/00H03K13/02
    • H03M1/1225H03M1/162H03M1/52
    • An analogue to digital converter comprises first and second switches (21:26) for sampling alternately first and second analogue signals, respectively, first and second integrators (22:27) which are supplied with the first and second analogue signals sampled alternately by the first and second switches (21:26), respectively, and produce output voltages varying in response to the first and second analogue signals supplied thereto, a constant current source section (32) operative to supply with a constant current to the first integrator (22) when the first switch (21) is in the OFF state and to the second integrator (27) when the second switch (26) is in the OFF state, and a digital signal generating section (34, 35) which is supplied alternately with comparison outputs obtained by comparing the output voltages of the first and second integrators derived therefrom when the constant current is supplied thereto with a predetermined voltage, respectively, and produces a digital signal corresponding to a duration defined by an instant at which the constant current source section commences supplying the constant current to either the first or second integrator and an instant at which the output voltage of either the first or second integrator, to which the constant current is supplied, reaches the level of the predetermined voltage.
    • PCT No.PCT / JP83 / 00090 Sec。 371日期:1983年11月25日 102(e)1983年11月25日日期PCT提交1983年3月25日PCT公布。 公开号WO83 / 03501 日期:1983年10月13日。模数转换器包括用于分别对第一和第二模拟信号进行采样的第一和第二开关(21:26),第一和第二积分器(22:27)被提供有第一和第二 分别由第一和第二开关(21:26)交替采样的模拟信号,并且产生响应于提供给其的第一和第二模拟信号而变化的输出电压;恒定电流源部分(32),用于提供恒定电流 当第二开关(26)处于关闭状态时,当第一开关(21)处于断开状态时,到第一积分器(22)和第二积分器(27),以及数字信号产生部分 ),其分别通过比较输出而获得的比较输出,所述比较输出通过比较从其中提供恒定电流时得到的第一和第二积分器的输出电压到达预定电压,并产生二 对应于由恒定电流源部分开始向第一或第二积分器提供恒定电流的瞬间所定义的持续时间和第一或第二积分器的输出电压的瞬时信号,恒定电流 被提供,达到预定电压的电平。