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Controllerless modem

  • US 6,799,225 B2
  • Filed: 02/06/2001
  • Issued: 09/28/2004
  • Est. Priority Date: 01/31/1996
  • Status: Expired due to Fees
First Claim
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1. A general purpose computer system for use with a modem that lacks a microcontroller for executing a modem controller code, where the general purpose computer system executes the modem controller code, comprising:

  • a processor for executing instructions;

    a virtualized UART interface for execution by said processor, said virtualized UART interface communicating data to and from the modem controller code;

    an input/output bus coupled to said processor, said input/output bus adapted to communicate with a controllerless hardware modem; and

    wherein said processor executes both general computer system code and the modem controller code and communicates data and commands between the executed modem controller code and the controllerless hardware modem, an operating system, wherein the virtualized UART interface appears to the operating system to be a physical UART.

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