发明授权
US06185628B2 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
- 专利标题： Controllerless modem with general purpose computer executing modem controller code and virtualized dart communicating data to/from modem controller code
- 专利标题（中）： 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
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申请号： US09237636申请日： 1999-01-26
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公开(公告)号： US06185628B2公开(公告)日： 2001-02-06
- 发明人: G. Byron Sands , Peter J. Brown , Don A. Dykes , Andrew L. Love , Kevin W. Eyres
- 申请人： G. Byron Sands , Peter J. Brown , Don A. Dykes , Andrew L. Love , Kevin W. Eyres
- 主分类号： G06F300
- IPC分类号： G06F300
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.