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    • 13. 发明授权
    • System for downloading programs
    • 用于下载程序的系统
    • US6131159A
    • 2000-10-10
    • US880257
    • 1992-05-08
    • Gideon HechtKurt Ervin HolmquistDonald C. Snoll
    • Gideon HechtKurt Ervin HolmquistDonald C. Snoll
    • G06F9/445H04L29/06
    • G06F8/60H04L29/06H04L67/34
    • A modified version of the operating communication program of a stored program controlled apparatus is installed with the aid of a downloadable start address specification means, optionally realized with an EEPROM memory. The start address specification means stores information that is downloaded through a communication port in the apparatus, and that information is used in defining the address from where the communication programs are initiated. In accordance with the method of this invention, downloading of the entire new set of programs is effected by first downloading a segment of the essential portion of the new package of programs. Control is then transferred to the new segment by downloading appropriate information into the start address specification means. Thereafter, utilizing the downloaded essential portion of the new package of programs, the remainder of the new package is downloaded.
    • 存储程序控制装置的操作通信程序的修改版本借助于可选地由EEPROM存储器实现的可下载的开始地址指定装置来安装。 开始地址规定装置存储通过设备中的通信端口下载的信息,并且该信息用于定义通信程序发起地址。 根据本发明的方法,通过首先下载新的程序包的主要部分的一部分来实现整个新的程序集的下载。 然后通过将适当的信息下载到起始地址指定装置中来将控制转移到新的段。 此后,利用下载的新程序包的基本部分,下载新包的其余部分。