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    Terminal device capable of remote download, download method of loader program in terminal device, and storage medium storing loader program
    5.
    发明授权
    Terminal device capable of remote download, download method of loader program in terminal device, and storage medium storing loader program 失效
    能够远程下载的终端设备，终端设备中的加载程序的下载方法以及存储加载程序的存储介质

    公开(公告)号：US06209127B1

    公开(公告)日：2001-03-27

    申请号：US09090685

    申请日：1998-06-04

    申请人： Toshiya Mori ,  Takashi Kakiuchi ,  Tetsuji Maeda ,  Hisayuki Kino ,  Yoshiyuki Miyabe

    发明人： Toshiya Mori ,  Takashi Kakiuchi ,  Tetsuji Maeda ,  Hisayuki Kino ,  Yoshiyuki Miyabe

    IPC分类号： G06F9445

    CPC分类号： G06F8/65 ,  G06F9/44536

    摘要： Memory is divided into a plurality of banks to store software which is upgraded one bank at a time. By doing so, a memory with the same size as one bank is only needed as the temporary storage used when performing an upgrade. The terminal device only needs a memory that is “1+1/n” times as large as a total software when there are n banks, while a conventional terminal device needs a memory that is twice as large as the total software. Two loader programs are stored in different banks as a master loader program used for download processing and a backup loader program. On receiving a new loader program, one loader program is used to write the new loader program over the other loader program so as to upgrade the loader program. The backup loader program is activated when the new loader program is to be written over the master loader program.

    摘要翻译： 存储器被分成多个银行以存储每次升级一个银行的软件。 通过这样做，只需要具有与一个存储体相同大小的存储器作为执行升级时使用的临时存储器。 当存在n个存储区时，终端设备仅需要与总软件“1 + 1 / n”倍的存储器，而常规的终端设备需要的存储器是总软件的两倍。 两个加载程序存储在不同的库中，作为用于下载处理的主加载程序和备份加载程序。 在接收到一个新的加载程序时，一个加载程序用于通过另一个加载程序写入新的加载程序，以升级加载程序。 当新的加载程序将通过主加载程序写入时，备份加载程序被激活。