WO2002084484A3 - Method of remotely upgrading firmware in field-deployed devices - Google Patents

Method of remotely upgrading firmware in field-deployed devices Download PDF

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Publication number
WO2002084484A3
WO2002084484A3 PCT/CA2002/000556 CA0200556W WO02084484A3 WO 2002084484 A3 WO2002084484 A3 WO 2002084484A3 CA 0200556 W CA0200556 W CA 0200556W WO 02084484 A3 WO02084484 A3 WO 02084484A3
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WO
WIPO (PCT)
Prior art keywords
firmware
server
field
upgrade
initiated
Prior art date
Application number
PCT/CA2002/000556
Other languages
French (fr)
Other versions
WO2002084484A2 (en
Inventor
Marie-Eve Lajoie
Francois St-Arnaud
Steve Baril
Jacques Boivin
Original Assignee
Domosys Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Domosys Corp filed Critical Domosys Corp
Publication of WO2002084484A2 publication Critical patent/WO2002084484A2/en
Publication of WO2002084484A3 publication Critical patent/WO2002084484A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates

Abstract

The method is used for downloading firmware upgrades to a non-volatile memory (210) of a targeted remote programmable embedded field-deployed device (120) over a communication network (100). The device (120) is connected to the network (100) and requires no human intervention at the remote site. The firmware includes a small upgrade program (320) which performs programming tasks on the device (120) according to commands received by a server (110). The method carried out by the upgrade program (320) allows to upgrade the application program (310), the communication protocol stack (330), a set of mutable interrupt vector table (340) or itself without the need of additional memory. It also has a bootstrap function which is responsible for verifying the integrity of the firmware upon reset of the device (120) before transferring control to the new application program (310). Upgrades can be either server-initiated (the firmware provider pushes the new version out to the field) or device-initiated (the device pulls the latest firmware version from the server).
PCT/CA2002/000556 2001-04-18 2002-04-18 Method of remotely upgrading firmware in field-deployed devices WO2002084484A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28420901P 2001-04-18 2001-04-18
US60/284,209 2001-04-18

Publications (2)

Publication Number Publication Date
WO2002084484A2 WO2002084484A2 (en) 2002-10-24
WO2002084484A3 true WO2002084484A3 (en) 2004-06-10

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PCT/CA2002/000556 WO2002084484A2 (en) 2001-04-18 2002-04-18 Method of remotely upgrading firmware in field-deployed devices

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US (1) US7093244B2 (en)
WO (1) WO2002084484A2 (en)

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WO2002084484A2 (en) 2002-10-24
US7093244B2 (en) 2006-08-15

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