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    • 44. 发明授权
    • Method of protecting leakage of information, and information processing apparatus and driver program which implement the method
    • 保护信息泄露的方法,实施该方法的信息处理装置和驱动程序
    • US08451474B2
    • 2013-05-28
    • US11283145
    • 2005-11-18
    • Yasuhiro KujiraiTatsuro UchidaMasanori AritomiHiroaki Nakata
    • Yasuhiro KujiraiTatsuro UchidaMasanori AritomiHiroaki Nakata
    • G06F3/12
    • G06F3/1222G06F3/1238G06F3/126G06F3/1288
    • A host computer which generates a print job subjected to printing by a printer stores a drawing command output from an application in a spool file via a graphic engine. A spool system, the graphic engine, and a job chasing function processing unit execute a chasing data generation process by using the drawing command. The spool system, the graphic engine, and a graphics control unit execute a print data generation process by using the same drawing command. At this time, the drawing command is read out and output so as to successively execute the chasing data generation process and print data generation process. With this configuration, there are provided a method of protecting leakage of information by which the contents of information can be reliably chased without requiring either a special application or a device having a special function and posing any restriction on the read or output path, and an information processing apparatus and driver program which implement the method.
    • 生成由打印机打印的打印作业的主计算机经由图形引擎将从应用输出的绘图命令存储在假脱机文件中。 卷线器系统,图形引擎和作业追踪功能处理单元通过使用绘图命令执行追踪数据生成处理。 卷轴系统,图形引擎和图形控制单元通过使用相同的绘制命令执行打印数据生成处理。 此时,绘制命令被读出并输出,以便连续执行追踪数据生成处理和打印数据生成处理。 利用这种配置,提供了一种保护信息泄漏的方法,其中信息内容可以可靠地追踪,而不需要特殊应用或具有特殊功能的设备,并且对读取或输出路径构成任何限制,并且 执行该方法的信息处理装置和驱动程序。