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    • 1. 发明授权
    • Security keys for enhanced downstream access security for electronic file systems and drives
    • 用于电子文件系统和驱动器增强的下游访问安全性的安全密钥
    • US06934852B2
    • 2005-08-23
    • US09732810
    • 2000-12-11
    • Scott Leonard DanielsDanny Marvin NealYat Hung Ng
    • Scott Leonard DanielsDanny Marvin NealYat Hung Ng
    • G06F21/00G06F11/30G06F12/14H04L9/00H04L9/32
    • G06F21/6218
    • A method and system for protecting electronic files from unauthorized access. The drive on which the file is stored is provided with a hardware identification code, which is unique to the drive. An Operating System (OS) extension allows a user to provide a security code required to access a requested drive. OS device driver, working in conjunction with the extension of the OS checks the requested drive to determine if an access code is required, and the drive responds with the security code or a default code. The default code indicates that the drive is globally accessible to users on the system. When a security code is returned, the OS compares the security code to the access code provided and provides the user with access to the drive only when the access code matches the security code.
    • 一种用于保护电子文件免遭未经授权访问的方法和系统。 存储文件的驱动器具有硬盘识别码,该驱动器是驱动器唯一的。 操作系统(OS)扩展允许用户提供访问请求的驱动器所需的安全代码。 OS设备驱动程序与OS的扩展一起工作,检查所请求的驱动器以确定是否需要访问代码,并且驱动器使用安全代码或默认代码进行响应。 默认代码表示驱动器可全面访问系统上的用户。 当返回安全代码时,操作系统将安全代码与提供的访问代码进行比较,只有当访问代码与安全代码相匹配时,才能向用户提供对驱动器的访问权限。
    • 4. 发明授权
    • Apparatus and a method for security authorization using a security key installed on removable media
    • 使用安装在可移动媒体上的安全密钥进行安全授权的装置和方法
    • US06944769B1
    • 2005-09-13
    • US09637320
    • 2000-08-10
    • Scott Leonard DanielsDanny Marvin NealYat Hung Ng
    • Scott Leonard DanielsDanny Marvin NealYat Hung Ng
    • G06F12/14
    • G06F21/51
    • An apparatus and a method in a data processing system are provided for insuring the security of data accessed from removable media. Normal virus scanning occurs after data is loaded into the main memory, but infection by a virus may have already occurred by this time. Therefore, it would be beneficial to check for possible virus infection before the data is transferred to main memory. A security key is read from the removable media. As encrypted data is read from the device, it is decrypted using the security key and then re-encrypted using the same security key to produce new data. The original data is accepted and sent to main memory if it is identical to the new data produced by decryption and re-encryption. If the two sets of data are not identical, then the data transmission from the device is aborted and all data on the removable media is rejected. The decryption/re-encryption checking is performed in hardware and so it can occur in real time. This hardware could be on the device controller, a separate security card, the mother board, or anywhere along the data path from the device controller to the main memory.
    • 提供数据处理系统中的装置和方法,用于确保从可移动介质访问的数据的安全性。 数据加载到主内存后会发生正常的病毒扫描,但病毒感染可能已经发生了。 因此,在将数据传输到主存储器之前检查可能的病毒感染将是有益的。 从可移动媒体读取安全密钥。 当从设备读取加密数据时,使用安全密钥对其进行解密,然后使用相同的安全密钥重新加密以产生新的数据。 如果原始数据与通过解密和重新加密产生的新数据相同,则原始数据被接受并发送到主存储器。 如果两组数据不完全相同,则从设备的数据传输中止,并且可移动介质上的所有数据都被拒绝。 解密/重新加密检查在硬件中执行,因此可以实时发生。 该硬件可以在设备控制器,单独的安全卡,母板或从设备控制器到主存储器的数据路径的任何地方。
    • 7. 发明授权
    • Method and an apparatus for dynamically reconfiguring a system bus topology
    • 用于动态重新配置系统总线拓扑的方法和装置
    • US06865615B1
    • 2005-03-08
    • US09620721
    • 2000-07-20
    • Pat Allen BucklandScott Leonard DanielsThomas R. Forrer, Jr.Daniel Eugene Pridgeon
    • Pat Allen BucklandScott Leonard DanielsThomas R. Forrer, Jr.Daniel Eugene Pridgeon
    • G06F13/40G06F15/16
    • G06F13/4068
    • A method and an apparatus is presented for configuring a system bus topology dynamically. In a preferred embodiment, the system bus is a Small Computer System Interface (SCSI) bus that connects a “daisy” chain of disk drives. Two types of disk drives are used: single ended (SE) “Ultra” drives capable of 20 MHz operation and LVD (low voltage differential) “Ultra Plus” drives capable of 40 MHz operation. LVD disk drives can also function in the slower SE mode. The first drive in the chain of drives may need to be connected by a cable over three feet long. This introduces signal degradation that is often overcome by introducing redrive circuitry to boost signal quality. This is an expensive solution and a much easier solution is presented: install a jumper between the last drive in the chain and the first drive. However, if LVD bus mode is used, then this jumper solution does not work and the jumper must be removed. Disk drives in a server system are “hot swappable,” which means they can be changed at run time without shutting down the system. A method and an apparatus is provided for dynamically testing for the appropriate mode of bus operation based on the currently installed disk drives and adjusting the jumper setting accordingly.
    • 提出一种动态配置系统总线拓扑的方法和装置。 在优选实施例中,系统总线是连接“菊花”链驱动器的小型计算机系统接口(SCSI)总线。 使用两种类型的磁盘驱动器:具有20MHz操作的单端(SE)“Ultra”驱动器和能够进行40MHz操作的LVD(低电压差分)“Ultra Plus”驱动器。 LVD磁盘驱动器也可以在较慢的SE模式下运行。 驱动器链中的第一个驱动器可能需要通过三英尺长的电缆连接。 这导致信号劣化,通常通过引入重新启动电路来提升信号质量来克服。 这是一个昂贵的解决方案,提供了一个更简单的解决方案:在链中的最后一个驱动器和第一个驱动器之间安装跳线。 但是,如果使用LVD总线模式,则该跳线解决方案不起作用,并且必须移除跳线。 服务器系统中的磁盘驱动器是“热插拔”,这意味着它们可以在运行时更改而不关闭系统。 提供一种方法和装置,用于基于当前安装的磁盘驱动器动态测试适当的总线操作模式,并相应地调整跳线设置。
    • 8. 发明授权
    • Data processing system and method included within an oscilloscope for independently testing an input signal
    • 用于独立测试输入信号的示波器中的数据处理系统和方法
    • US06845331B2
    • 2005-01-18
    • US10054184
    • 2002-01-22
    • Scott Leonard DanielsDavid Edward Halter
    • Scott Leonard DanielsDavid Edward Halter
    • G01R13/02G01R13/00
    • G01R13/0263
    • A data processing system and method included within an oscilloscope for independently analyzing a signal input into the oscilloscope. The oscilloscope includes a plurality of triggering modes. A plurality of trigger parameters are specified for each of the triggering modes. Thereafter, the oscilloscope automatically analyzes the input signal, independently from any user input, utilizing each of the triggering modes and the trigger parameters specified for each of the triggering modes. The input signal includes a desired waveform and a plurality of undesired waveforms. While the oscilloscope is automatically analyzing the input signal, a determination is made regarding whether the oscilloscope triggered on one of the undesired waveforms. When it is determined that the oscilloscope triggered on one of the undesired waveforms, the undesired waveform upon which the oscilloscope triggered is stored.
    • 示波器中包含的用于独立分析示波器输入信号的数据处理系统和方法。 示波器包括多个触发模式。 为每个触发模式指定多个触发参数。 此后,示波器将自动分析输入信号,独立于任何用户输入,利用每种触发模式和为每种触发模式指定的触发参数。 输入信号包括期望的波形和多个非期望的波形。 当示波器自动分析输入信号时,确定示波器是否在不期望的波形之一触发。 当确定示波器在其中一个不需要的波形上触发时,存储示波器触发的不需要的波形。
    • 10. 发明授权
    • Data processing system and method included within an oscilloscope for independently testing an input signal
    • 用于独立测试输入信号的示波器中的数据处理系统和方法
    • US06421619B1
    • 2002-07-16
    • US09165881
    • 1998-10-02
    • Scott Leonard DanielsDavid Edward Halter
    • Scott Leonard DanielsDavid Edward Halter
    • G01R1332
    • G01R13/0263
    • A data processing system and method included within an oscilloscope for independently analyzing a signal input into the oscilloscope. The oscilloscope includes a plurality of triggering modes. A plurality of trigger parameters are specified for each of the triggering modes. Thereafter, the oscilloscope automatically analyzes the input signal, independently from any user input, utilizing each of the triggering modes and the trigger parameters specified for each of the triggering modes. The input signal includes a desired waveform and a plurality of undesired waveforms. While the oscilloscope is automatically analyzing the input signal, a determination is made regarding whether the oscilloscope triggered on one of the undesired waveforms. When it is determined that the oscilloscope triggered on one of the undesired waveforms, the undesired waveform upon which the oscilloscope triggered is stored.
    • 示波器中包含的用于独立分析示波器输入信号的数据处理系统和方法。 示波器包括多个触发模式。 为每个触发模式指定多个触发参数。 此后,示波器将自动分析输入信号,独立于任何用户输入,利用每种触发模式和为每种触发模式指定的触发参数。 输入信号包括期望的波形和多个非期望的波形。 当示波器自动分析输入信号时,确定示波器是否在不期望的波形之一触发。 当确定示波器在其中一个不需要的波形上触发时,存储示波器触发的不需要的波形。