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    • 4. 发明授权
    • Method of using small addresses to access any guest zone in a large
memory
    • 使用小地址访问大型内存中的任何访客区域的方法
    • US5371867A
    • 1994-12-06
    • US974393
    • 1992-11-10
    • Jonel GeorgeRoger E. HoughMoon J. KimAllen H. PrestonDavid E. StuckiCharles F. Webb
    • Jonel GeorgeRoger E. HoughMoon J. KimAllen H. PrestonDavid E. StuckiCharles F. Webb
    • G06F12/06G06F9/46G06F12/02G06F12/10G06F12/08
    • G06F12/10
    • Enables a host (hypervisor) to access any location in any guest zone in a large memory, when host and guest operands have small addresses that cannot access locations outside of their own zones. System hardware/microcode provides a particular number of windows for host use. Each CPU in the system has one or more window access registers (WARs), and one or more window registers (WRs). The host uses a load WAR instruction to designate each page frame (PF) in the host zone to be used as a host window, and each PF is associated with a respective window number. When the host receives an interception signal requiring the host to access a guest location represented by a guest zone identifier and a guest small address, the host designates one of its window numbers for an access to this guest location. Then, the host executes an activate WR instruction which invokes CPU hardware/microcode that generates a large absolute address for accessing this guest location in the large memory and stores it in a WR associated with the window number. When the host thereafter executes any instruction with an operand small address accessing the host window PF associated with that WR, and CPU hardware/microcode automatically substitutes that guest large address in the WR for the host operand small address for accessing the guest location.
    • 当主机和访客操作数具有不能访问其本身区域之外的位置的小地址时,使主机(管理程序)能够访问大内存中任何访客区域中的任何位置。 系统硬件/微码提供特定数量的主机使用的窗口。 系统中的每个CPU都有一个或多个窗口访问寄存器(WARs)和一个或多个窗口寄存器(WR)。 主机使用加载WAR指令来指定要用作主机窗口的主机区域中的每个页面帧(PF),并且每个PF与相应的窗口编号相关联。 当主机接收到要求主机访问由客户区域标识符和客人小地址表示的客户位置的拦截信号时,主机指定其窗口号码之一用于访问该访客位置。 然后,主机执行一个激活WR指令,该指令调用生成大型绝对地址的CPU硬件/微码,用于访问大存储器中的该客户位置,并将其存储在与窗口号相关联的WR中。 当主机此后执行任何具有访问与该WR相关联的主机窗口PF的操作数小地址的指令,并且CPU硬件/微代码自动地将该客户机大地址替换为用于访问客户位置的主操作数小地址。
    • 10. 发明授权
    • Adaptive fingerprint scanning
    • 自适应指纹扫描
    • US09189675B2
    • 2015-11-17
    • US13096179
    • 2011-04-28
    • Moon J. Kim
    • Moon J. Kim
    • G06K9/00
    • G06K9/0002
    • Embodiments of the present invention provide an adaptive and intelligent fingerprint scanning device and approach. Specifically, embodiments of the present invention utilize DC resistive image scanning to reduce overall scanning time and energy consumption (e.g., by identifying a targeted scanning area). In a typical embodiment, a scanning device will be provided that includes a scanning area comprised of a set (e.g., at least one) of imaging pixel electrodes (e.g., arranged adjacent to one another in a grid-like or other fashion). As a user presses his/her finger against the scanning area, a first portion of the finger will contact a first electrode while a second portion of the finger will contact a second electrode. When this occurs, a voltage source of the device will apply an initial voltage across the first and second finger portions. A meter of the device will take an electrical measurement (e.g., resistance and/or charged skin voltage) across the two finger portions. Based on the electrical measurement, a location of the finger on the device will be identified, and the fingerprint will be scanned accordingly. Thus, the entire scanning surface need not be scanned, only the portions thereof where the finger was detected.
    • 本发明的实施例提供了一种自适应和智能的指纹扫描装置和方法。 具体地,本发明的实施例利用DC电阻图像扫描来减少总扫描时间和能量消耗(例如,通过识别目标扫描区域)。 在典型的实施例中,将提供一种扫描装置,其包括由成像像素电极(例如,以格子状或其他方式彼此相邻布置)的组(例如至少一个)组成的扫描区域。 当用户将他/她的手指压靠扫描区域时,手指的第一部分将接触第一电极,而手指的第二部分将接触第二电极。 当这种情况发生时,装置的电压源将施加跨越第一和第二手指部分的初始电压。 设备的一米将跨两个手指部分进行电测量(例如,电阻和/或带电皮肤电压)。 基于电测量,将识别手指在设备上的位置,并且相应地扫描指纹。 因此,整个扫描表面不需要被扫描,仅仅是其中检测到手指的部分。