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    • 3. 发明申请
    • Cryptographic method and apparatus for non-linearly merging a data block and a key
    • 用于非线性合并数据块和密钥的加密方法和装置
    • US20020034295A1
    • 2002-03-21
    • US09924990
    • 2001-08-08
    • U.S. Philips Corp.
    • Huibert Den Boer
    • H04L009/06
    • H04L9/002H04L9/0625H04L2209/24
    • The method and apparatus are used for cryptographically converting a digital input block into a digital output block. The apparatus 400 comprises first input means 410 for obtaining the digital input block and second input means 440 for obtaining a key K1. Cryptographic processing means 420 of the apparatus 400 convert the digital input block into the digital output block by merging a selected part M1 of the digital input block with the key K1 and producing a data block B1 which non-linearly depends on M1 and K1. The merging is performed in one, sequentially inseparable step. Output means 430 are used to output the digital output block of which a selected part is derived from B1.
    • 该方法和装置用于将数字输入块加密转换为数字输出块。 装置400包括用于获得数字输入块的第一输入装置410和用于获得密钥K1的第二输入装置440。 装置400的加密处理装置420通过将数字输入块的选定部分M1与密钥K1合并并产生非线性地依赖于M1和K1的数据块B1,将数字输入块转换为数字输出块。 合并在一个顺序不可分割的步骤中执行。 输出装置430用于输出从B1导出所选择的部分的数字输出块。
    • 6. 发明授权
    • Semiconductor radiation detector and method of manufacturing same
    • 半导体辐射探测器及其制造方法
    • US3928866A
    • 1975-12-23
    • US37779773
    • 1973-07-09
    • PHILIPS CORP
    • DIGOY JEAN LOUIS
    • G01T1/24H01L31/00H01L31/09H01L31/10H01L15/00
    • H01L31/00H01L31/10
    • A radiation detector comprising a semiconductor body having two oppositely located major surfaces which are substantially parallel to each other, a surface layer of a first conductivity type adjoining a first of said major surfaces, said surface layer in the semiconductor body adjoining a substantially intrinsic intermediate region which extends through the semiconductor body down to substantially the second major surface, an annular surface region of the second conductivity type being present at the second major surface, the first major surface comprising two substantially concentric grooves extending in the semiconductor body from the first major surface down to a depth which is larger than the thickness of the surface layer of the first conductivity type.
    • 一种辐射检测器,包括半导体本体,所述半导体本体具有彼此基本平行的两个相对定位的主表面,与所述主表面中的第一个相邻的第一导电类型的表面层,所述半导体主体中的所述表面层邻接基本上本征的中间区域 其延伸穿过半导体主体到大致第二主表面,第二导电类型的环形表面区域存在于第二主表面处,第一主表面包括从半导体主体中的第一主表面延伸的两个基本同心的凹槽 直到比第一导电类型的表面层的厚度大的深度。
    • 10. 发明授权
    • Apparatus having dropout detection and compensation for reproducing a video signal recorded on a record
    • 具有用于再现记录在记录上的视频信号的压差检测和补偿的装置
    • US3925811A
    • 1975-12-09
    • US44235474
    • 1974-02-14
    • PHILIPS CORP
    • KENNEY GEORGE CHURCHILL
    • H04N5/94G11B20/06H04N9/88H04N5/76H04N9/02
    • H04N9/88
    • An apparatus for reproducing a video signal which is recorded on a record carrier, which apparatus includes a dropout detection and compensation device. The carrier which is frequency modulated by the luminance signal is divided by two frequency dividers, the first divider supplying a lower frequency signal whose zero crossings correspond to the zero crossings of the rising edges of the modulated carrier and the second divider supplying a lower frequency signal whose zero crossings correspond to the zero crossings of the falling edges of the modulated carrier. The two lower frequency signals are FM-demodulated and comparison of said demodulated lower frequency signals enables dropout detection. During a dropout compensation is possible by inserting the undisturbed lower frequency signal with the aid of a selection device. A similar detection and substantially the same compensation is also possible for the chrominance information when coded in a specific manner.
    • 一种用于再现记录在记录载体上的视频信号的装置,该装置包括一个压差检测和补偿装置。 由亮度信号进行频率调制的载波由两个分频器分频,第一分频器提供低频信号,其过零点对应于调制载波的上升沿的过零点,而第二分频器提供较低频率信号 其过零点对应于调制载波的下降沿的零交叉。 两个较低频率信号被FM解调,并且所述解调的较低频率信号的比较使得能够进行检测。 通过在选择装置的帮助下插入未受干扰的较低频率信号,可以进行压差补偿。 当以特定方式编码时,色度信息的类似检测和基本上相同的补偿也是可能的。