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    • 2. 发明授权
    • Method of checking parallel port of personal computer using loopback
    • 使用环回检查个人电脑并口的方法
    • US06374372B1
    • 2002-04-16
    • US09134149
    • 1998-08-14
    • Jung-chul Ha
    • Jung-chul Ha
    • G06F11273
    • G06F11/221
    • A method of checking a parallel port of a personal computer using loopback includes the steps of loopback-connecting pins corresponding to control signals and data signals transmitted to a printer to pins corresponding to status signals transmitted to the computer, checking whether there is a parallel port, stopping the checking when there is no parallel port, generating the control signals and reading looped-back status signals after a predetermined time to check control pins, and generating the data signals and reading looped-back status signals after a predetermined time to check data pins. Accordingly, a parallel port of a personal computer is tested without being connected to a printer, thereby simplifying the a production process. Also, manual printing is not required, thereby reducing test time and production time.
    • 使用环回检查个人计算机的并行端口的方法包括以下步骤:将对应于控制信号的环路连接引脚和发送到打印机的数据信号对应于发送到计算机的状态信号的引脚,检查是否存在并行端口 在没有并行端口时停止检查,在预定时间之后产生控制信号和读回环状态信号以检查控制引脚,并且在预定时间之后产生数据信号和读回环状态信号以检查数据 针脚。 因此,个人计算机的并行端口被测试而不连接到打印机,从而简化了生产过程。 此外,不需要手动打印,从而减少测试时间和生产时间。
    • 3. 发明授权
    • Method and apparatus for upgrading BIOS using a serial communication
    • 使用串行通信升级BIOS的方法和设备
    • US06175919B1
    • 2001-01-16
    • US09071032
    • 1998-05-04
    • Jung-chul Ha
    • Jung-chul Ha
    • G06F1314
    • G06F8/64G06F8/65G06F9/4401
    • A method for upgrading a BIOS using serial communication is provided. In the method, it is possible to collectively upgrade the BIOS's of a plurality of computers using serial communication without using a floppy disk. The method includes the steps of: at a host computer, transferring predetermined BIOS upgrade software and BIOS image data corresponding to a computer to the computer through a selector using serial communication when the computer connected to the host computer through the selector requests the BIOS to be upgraded; and, at the computer which requested the BIOS to be upgraded, upgrading the BIOS by removing the existing BIOS stored in a BIOS ROM and writing the BIOS image data into the BIOS ROM by executing the received BIOS upgrade software. According to the present invention, it is possible to save time in upgrading the BIOS and to collectively upgrade the BIOS's of a plurality of computers.
    • 提供了一种使用串行通信来升级BIOS的方法。 在该方法中,可以在不使用软盘的情况下使用串行通信来集体升级多台计算机的BIOS。 该方法包括以下步骤:在主计算机中,当通过选择器连接到主计算机的计算机请求BIOS为BIOS时,通过使用串行通信的选择器将预定的BIOS升级软件和对应于计算机的BIOS图像数据传送到计算机 升级 并且在请求BIOS升级的计算机上,通过移除存储在BIOS ROM中的现有BIOS来升级BIOS,并通过执行所接收的BIOS升级软件将BIOS图像数据写入BIOS ROM。 根据本发明,可以节省升级BIOS的时间并集中升级多台计算机的BIOS。