Controllerless modem
    1.
    发明授权
    Controllerless modem 失效
    无控制器调制解调器

    公开(公告)号:US06799225B2

    公开(公告)日:2004-09-28

    申请号:US09778511

    申请日:2001-02-06

    IPC分类号: G06F1314

    CPC分类号: G06F13/105

    摘要: 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.

    摘要翻译: 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。

    Controllerless modem
    2.
    发明授权
    Controllerless modem 失效
    无控制器调制解调器

    公开(公告)号:US5864710A

    公开(公告)日:1999-01-26

    申请号:US685310

    申请日:1996-07-22

    IPC分类号: G06F13/10 G06F13/00

    CPC分类号: G06F13/105

    摘要: 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.

    摘要翻译: 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。

    Controllerless modem with general purpose computer executing modem controller code and virtualized dart communicating data to/from modem controller code
    3.
    发明授权
    Controllerless modem with general purpose computer executing modem controller code and virtualized dart communicating data to/from modem controller code 有权
    无控制调制解调器,通用计算机执行调制解调器控制器代码,虚拟化飞镖与调制解调器控制器代码通信数据

    公开(公告)号:US06185628B2

    公开(公告)日:2001-02-06

    申请号:US09237636

    申请日:1999-01-26

    IPC分类号: G06F300

    CPC分类号: G06F13/105

    摘要: 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.

    摘要翻译: 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。