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    • 1. 发明授权
    • Controllerless modem
    • 无控制器调制解调器
    • US06799225B2
    • 2004-09-28
    • US09778511
    • 2001-02-06
    • G. Byron SandsPeter J. BrownDon A. DykesAndrew L. LoveKevin W. Eyres
    • G. Byron SandsPeter J. BrownDon A. DykesAndrew L. LoveKevin W. Eyres
    • G06F1314
    • G06F13/105
    • A computer system implements a standard modem without the use of a microcontroller. Instead, a digital signal processor is provided on an expansion card, but with direct links to the computer system itself. The code usually implemented in the microcontroller is instead implemented as a virtual modem controller to be called by the operating system of the computer itself. Further, this virtual modem controller includes a virtualized UART, that appears to the operating system software as a hardware UART, with entry points for calls to replace input/output instructions. In this way, standard device driver code written to execute input/output operations is easily converted to operate with the “virtualized” UART.
    • 计算机系统在不使用微控制器的情况下实现标准调制解调器。 相反,在扩展卡上提供数字信号处理器,而是直接连接到计算机系统本身。 通常在微控制器中实现的代码被实现为由计算机本身的操作系统调用的虚拟调制解调器控制器。 此外,该虚拟调制解调器控制器包括虚拟化UART,其作为硬件UART在操作系统软件中出现,具有用于替换输入/输出指令的调用的入口点。 以这种方式,写入执行输入/输出操作的标准设备驱动程序代码很容易转换为使用“虚拟化”UART进行操作。
    • 2. 发明授权
    • Controllerless modem
    • 无控制器调制解调器
    • US5864710A
    • 1999-01-26
    • US685310
    • 1996-07-22
    • G. Byron SandsPeter J. BrownDon A. DykesAndrew L. LoveKevin W. Eyres
    • G. Byron SandsPeter J. BrownDon A. DykesAndrew L. LoveKevin W. Eyres
    • G06F13/10G06F13/00
    • G06F13/105
    • A computer system implements a standard modem without the use of a microcontroller. Instead, a digital signal processor is provided on an expansion card, but with direct links to the computer system itself. The code usually implemented in the microcontroller is instead implemented as a virtual modem controller to be called by the operating system of the computer itself. Further, this virtual modem controller includes a virtualized UART, that appears to the operating system software as a hardware UART, with entry points for calls to replace input/output instructions. In this way, standard device driver code written to execute input/output operations is easily converted to operate with the "virtualized" UART.
    • 计算机系统在不使用微控制器的情况下实现标准调制解调器。 相反,在扩展卡上提供数字信号处理器,而是直接连接到计算机系统本身。 通常在微控制器中实现的代码被实现为由计算机本身的操作系统调用的虚拟调制解调器控制器。 此外,该虚拟调制解调器控制器包括虚拟化UART,其作为硬件UART在操作系统软件中出现,具有用于替换输入/输出指令的调用的入口点。 以这种方式,写入执行输入/输出操作的标准设备驱动程序代码很容易转换为使用“虚拟化”UART进行操作。
    • 5. 发明授权
    • System, method, and computer program product for on-line replacement of a host bus adapter
    • 用于在线更换主机总线适配器的系统,方法和计算机程序产品
    • US06779064B2
    • 2004-08-17
    • US10057404
    • 2002-01-24
    • Michael E. McGowenWilliam C. EdwardsPeter J. BrownCraig M. Belusar
    • Michael E. McGowenWilliam C. EdwardsPeter J. BrownCraig M. Belusar
    • G06F1300
    • H04L67/1097G06F3/0601G06F9/4411G06F11/2005G06F11/2007G06F11/2092G06F2003/0692
    • A system and method for enabling multi-path functionality between a host bus adapter (HBA) in a host computer of a storage system and at least one storage device is disclosed. The host computer includes a processor and associated memory, and an operating system including a PnP manager that maintains a logical device stack for the storage device. An HBA-specific filter driver intercepts responses from the underlying HBA driver to specified PnP requests. These responses are modified to prevent standard Microsoft operating system SCSI class device drivers from being loaded for devices attached to the HBA. Instead, the modified responses cause a multi-path SCSI class device driver to be loaded. The filter driver also monitors the status of the paths to a device and, upon request, provides status information to the multi-path SCSI class device driver. The multi-path SCSI class driver may use this status information to decide whether to make a particular path a primary path. The actions required to make a path a primary path may be performed by the filter driver, e.g., through a function call to the filter driver initiated by the multi-path SCSI driver.
    • 公开了一种用于在存储系统的主计算机中的主机总线适配器(HBA)和至少一个存储设备之间实现多路径功能的系统和方法。 主机包括处理器和相关联的存储器,以及包括维护存储设备的逻辑设备堆栈的PnP管理器的操作系统。 HBA特定的过滤器驱动程序拦截从基础HBA驱动程序到指定的PnP请求的响应。 修改这些响应以防止为连接到HBA的设备加载标准的Microsoft操作系统SCSI类设备驱动程序。 相反,修改的响应会导致加载多路径SCSI类设备驱动程序。 过滤器驱动程序还监视设备路径的状态,并根据请求向多路径SCSI类设备驱动程序提供状态信息。 多路径SCSI类驱动程序可以使用该状态信息来决定是否使特定路径成为主路径。 使路径成为主路径所需的动作可以由过滤器驱动器执行,例如通过对由多路径SCSI驱动器发起的过滤器驱动程序的函数调用来执行。
    • 6. 发明授权
    • High speed optoisolator switching apparatus
    • 高速光隔离开关装置
    • US5089948A
    • 1992-02-18
    • US546117
    • 1990-06-29
    • Peter J. BrownSuresh Hariharan
    • Peter J. BrownSuresh Hariharan
    • H03K17/795
    • H03K17/7955Y10S323/902
    • An electrically isolated high speed optical switching arrangement for use as a computer over-voltage sensing circuit utilizing first and second optoisolator devices, the first having an input, a first signal from the output of a bus sensing circuitry which provides two complementary outputs, with the output voltage of the optoisolator controlling power-down circuitry for the computer in response to an over-voltage condition. A second control optoisolator has its output in parallel with a resistor in the base to emitter path of the first optoisolator. The complementary signal of the bus-sensing circuitry provides the input to the second optoisolator. During normal power conditions, the first optoisolator is conductive and the second is non-conductive. As an over-voltage condition occurs, the second optoisolator is driven into conduction, thereby effectively providing a shunt across the resistor of the first optoisolator while the first optoisolator is shut off to instantaneously terminate conduction of the first optoisolator and provide an output signal to the power-down circuitry for shutting down the power in response to the over-voltage condition.
    • 一种电隔离的高速光开关装置,用作利用第一和第二光隔离器装置的计算机过电压感测电路,第一和第二光隔离器装置具有输入,来自总线感测电路的输出的第一信号,其提供两个互补输出, 响应于过电压条件,计算机的控制断电电路的光隔离器的输出电压。 第二控制光隔离器的输出与第一光隔离器的基极到发射极路径中的电阻并联。 总线感测电路的互补信号为第二光隔离器提供输入。 在正常功率条件下,第一个光隔离器是导电的,第二个是非导通的。 当发生过电压状态时,第二光隔离器被驱动导通,由此有效地在第一光隔离器的电阻器之间提供并联,同时第一光隔离器被切断以瞬时终止第一光隔离器的导通,并向第一光隔离器提供输出信号 断电电路,用于响应过电压条件关闭电源。