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Field configurable embedded computer system

  • US 5,812,857 A
  • Filed: 08/28/1996
  • Issued: 09/22/1998
  • Est. Priority Date: 08/28/1996
  • Status: Expired due to Term
First Claim
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1. A field configurable embedded computer system capable of being upgrade by a new download code set comprising:

  • a central processing unit,a volatile memory area,a network communication hardware means,a persistent memory area further comprising;

    a persistent variable storage section, for storing persistent configuration information,a persistent program code storage section for storing factory permanent product programs such as power-up initialization, self-test programs, and persistent memory read/write programs,a feature code section further comprising;

    feature functions, including a download program code section that contains a download program, anda combined network driver section including a combined network driver section,the combined network drivers having a software means to interface with the feature functions including the download program,the central processing unit, the volatile memory area the network communication hardware means, and the persistant memory means are electronically connected,whereby the field configurable embedded system can be upgraded with the new download code set.

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