Encryption/decryption device, communication controller, and electronic instrument
    1.
    发明申请
    Encryption/decryption device, communication controller, and electronic instrument 审中-公开
    加密/解密设备,通信控制器和电子仪器

    公开(公告)号:US20070180270A1

    公开(公告)日:2007-08-02

    申请号:US11345386

    申请日:2006-02-02

    IPC分类号: G06F12/14

    摘要: An encryption/decryption device includes a storage section which stores input data and output data, a first encryption/decryption processing section which performs first encryption and decryption processing, and a second encryption/decryption processing section which performs second encryption and decryption processing. The encryption/decryption device stores decrypted data obtained by causing one of the first and second encryption/decryption processing sections to perform the first or second decryption processing for the input data in the storage section. The encryption/decryption device stores data obtained by causing the other of the first and second encryption/decryption processing sections to perform the first or second encryption processing for the decrypted data in the storage section as the output data. The storage area of the storage section for the decrypted data is configured to be inaccessible from the outside of the encryption/decryption device.

    摘要翻译: 加密/解密装置包括存储输入数据和输出数据的存储部分,执行第一加密和解密处理的第一加密/解密处理部分,以及执行第二加密和解密处理的第二加密/解密处理部分。 加密/解密装置存储通过使第一和第二加密/解密处理部中的一个对存储部中的输入数据执行第一或第二解密处理而获得的解密数据。 加密/解密装置存储通过使第一和第二加密/解密处理部分中的另一个对存储部分中的解密数据执行第一或第二加密处理而获得的数据作为输出数据。 用于解密数据的存储部分的存储区域被配置为从加密/解密设备的外部不可访问。

    Encryption/decryption device, communication controller, and electronic instrument
    2.
    发明申请
    Encryption/decryption device, communication controller, and electronic instrument 审中-公开
    加密/解密设备,通信控制器和电子仪器

    公开(公告)号:US20060188098A1

    公开(公告)日:2006-08-24

    申请号:US11355999

    申请日:2006-02-17

    IPC分类号: H04N7/167

    CPC分类号: H04L9/0637 H04L2209/60

    摘要: An encryption/decryption device includes an encryption/decryption processing section which performs encryption or decryption processing for divided data of first and second content data in an operation mode of a block cipher method using data in a block other than a block under processing, and an intermediate value storage section which stores a processing result or an input value of the encryption/decryption processing section in content units. After the processing result or the input value of the encryption/decryption processing section for one of the divided data of the second content data has been stored in the intermediate value storage section, the processing result or the input value for the Kth divided data of the first content data is read from the intermediate value storage section, and the encryption/decryption processing section performs the encryption or decryption processing for the (K+1)th divided data of the first content data by using the processing result or the input value.

    摘要翻译: 一种加密/解密装置包括:加密/解密处理部分,其使用在处理中的块以外的块中的数据的块密码方法的操作模式中对第一和第二内容数据的划分数据执行加密或解密处理, 中间值存储部,其以内容单位存储加密/解密处理部的处理结果或输入值。 在第二内容数据的划分数据之一的处理结果或加密/解密处理部分的输入值已被存储在中间值存储部分中之后,处理结果或第K个分割数据的输入值 从中间值存储部分读取第一内容数据,并且加密/解密处理部分通过使用处理结果或输入值来执行第一内容数据的第(K + 1)个划分数据的加密或解密处理。

    POWER SUPPLY UNIT
    6.
    发明申请
    POWER SUPPLY UNIT 有权
    供电单元

    公开(公告)号:US20090315401A1

    公开(公告)日:2009-12-24

    申请号:US12307994

    申请日:2007-06-18

    IPC分类号: H02J1/00 H02M3/155

    摘要: The power supply unit has a sample-and-hold circuit that samples a voltage supplied from a power source to a load according to a sample timing signal and holds the voltage as an output set value for the DC/DC converter. The unit supplies a load with an output from the DC/DC converter controlled so that an output voltage of power source (22) becomes an output set value of the DC/DC converter when the voltage of power source (22) drops. Since a voltage corresponding to the voltage of the power source before the voltage drop is set to the output set value of the DC/DC converter, a stable power supply unit is obtained in which the difference is always small between the voltage of the power source in normal times and the output voltage from the DC/DC converter when the voltage of the power source temporarily fluctuates.

    摘要翻译: 电源单元具有采样和保持电路,其根据采样定时信号对从电源提供给负载的电压进行采样,并将该电压保持为DC / DC转换器的输出设定值。 该单元向受到控制的DC / DC转换器的输出提供负载,使得当电源(22)的电压下降时,电源(22)的输出电压变为DC / DC转换器的输出设定值。 由于将与电压下降之间的电源电压相对应的电压设定为DC / DC转换器的输出设定值,因此获得稳定的电源单元,其中电源的电压之间的差异总是很小 在正常情况下,当电源电压暂时波动时,来自DC / DC转换器的输出电压。

    POWER SUPPLY DEVICE
    7.
    发明申请
    POWER SUPPLY DEVICE 有权
    电源设备

    公开(公告)号:US20090236915A1

    公开(公告)日:2009-09-24

    申请号:US12375153

    申请日:2007-07-20

    IPC分类号: H02J1/00

    摘要: A power supply device of the present invention includes a switching element and a switch that operate so that when a primary DC voltage source of the device is in a voltage drop state, the power of a secondary auxiliary voltage source thereof is mixed with the power of the DC voltage source in a balanced manner and supplied to a load. This structure can reduce the maxim amount of power storage necessary for the auxiliary voltage source and thus the number of power storage elements necessary for the auxiliary voltage source. Thus, a smaller power supply device can be provided.

    摘要翻译: 本发明的电源装置包括开关元件和开关,其操作使得当器件的初级DC电压源处于电压降状态时,其辅助辅助电压源的功率与 直流电压源以平衡的方式提供给负载。 这种结构可以减少辅助电压源所需的最大功率储存量,从而减少辅助电压源所需的功率存储元件的数量。 因此,可以提供更小的电源装置。

    POWER SUPPLY SYSTEM
    8.
    发明申请
    POWER SUPPLY SYSTEM 有权
    电源系统

    公开(公告)号:US20090200991A1

    公开(公告)日:2009-08-13

    申请号:US11576360

    申请日:2006-11-09

    IPC分类号: H02J7/00 H02J7/04

    摘要: A limit value of an output current of power converter is defined as a first current value when a voltage at both ends of capacitor is higher than a voltage at both ends of battery, and a limit value of the output current thereof is defined as a second current value when the voltages are substantially equal to each other, the first current value is set to be smaller than the second current value. Thus, when a voltage at both ends of capacitor and a voltage at both ends of battery are substantially equal, heat is hardly generated. The limit value of the output current is set to a maximum current consumed by load. When a voltage at both ends of capacitor is higher than a voltage at both ends of battery, the limit value of the output current is set to be smaller than the second current value, and thereby heat generation is suppressed. Thus, the size of the heat dissipating components can be reduced, and a power supply system whose entire size can be minimized can be provided.

    摘要翻译: 当电容器两端的电压高于电池两端的电压时,功率转换器的输出电流的极限值被定义为第一电流值,其输出电流的极限值被定义为第二电流值 当电压基本相等时,电流值被设定为小于第二电流值。 因此,当电容器两端的电压和电池两端的电压基本相等时,几乎不产生热量。 输出电流的极限值设置为负载消耗的最大电流。 当电容器两端的电压高于电池两端的电压时,将输出电流的极限值设定为小于第二电流值,从而抑制发热。 因此,可以降低散热部件的尺寸,并且可以提供整体尺寸可以最小化的电源系统。

    Power supply unit
    10.
    发明授权
    Power supply unit 有权
    供电单元

    公开(公告)号:US07830035B2

    公开(公告)日:2010-11-09

    申请号:US12307994

    申请日:2007-06-18

    IPC分类号: H02J1/10

    摘要: The power supply unit has a sample-and-hold circuit that samples a voltage supplied from a power source to a load according to a sample timing signal and holds the voltage as an output set value for the DC/DC converter. The unit supplies a load with an output from the DC/DC converter controlled so that an output voltage of a power source becomes an output set value of the DC/DC converter when the voltage of the power source drops. Since a voltage corresponding to the voltage of the power source before the voltage drop is set to the output set value of the DC/DC converter, a stable power supply unit is obtained in which the difference is always small between the voltage of the power source in normal times and the output voltage from the DC/DC converter when the voltage of the power source temporarily fluctuates.

    摘要翻译: 电源单元具有采样和保持电路,其根据采样定时信号对从电源提供给负载的电压进行采样,并将该电压保持为DC / DC转换器的输出设定值。 该单元为控制的DC / DC转换器的输出提供负载,使得当电源的电压下降时,电源的输出电压变为DC / DC转换器的输出设定值。 由于将与电压下降之间的电源电压对应的电压设定为DC / DC转换器的输出设定值,因此获得稳定的电源单元,其中电源的电压之间的差异总是很小 在正常情况下,当电源电压暂时波动时,来自DC / DC转换器的输出电压。