Global Patent Index - EP 1508091 A4

EP 1508091 A4 20051221 - SYSTEM UPDATE PROTOCOL AND BOOTABLE CD CONTROLLER WITH EMBEDDED OPERATING SYSTEM

Title (en)

SYSTEM UPDATE PROTOCOL AND BOOTABLE CD CONTROLLER WITH EMBEDDED OPERATING SYSTEM

Title (de)

SYSTEMAKTUALISIERUNGSPROTOKOLL UND BOOT-FÄHIGE CD-STEUERUNG MIT EINGEBETTETEM BETRIEBSSYSTEM

Title (fr)

PROTOCOLE DE MISE A JOUR DE SYSTEME ET CONTROLEUR INITIALISABLE A PARTIR D'UN C.D. A SYSTEME D'EXPLOITATION INCORPORE

Publication

EP 1508091 A4 20051221 (EN)

Application

EP 03741823 A 20030528

Priority

  • US 0316752 W 20030528
  • US 15652102 A 20020528
  • US 15630302 A 20020528

Abstract (en)

[origin: WO03100610A1] A system update protocol. A software update is packed into a packed file, which packed file includes a unique signature. The packed file is uploaded from a trusted client computer to the network printer. The integrity of the packed file is automatically checked on the network printer by performing a checksum and signature comparison to ensure the packed file is transmitted correctly. The packed file is resent when the packed file is determined to be corrupt. The packed file is unpacked into a predetermined directory structure of unpacked files. The client computer then signals the network printer cause installation of the software update on the network printer. In another embodiment, the printer controller includes one or more non-volatile memory elements for storing print/fax/scan data and printer controller system parameters. The printer controller is bootable from the non-volatile storage medium, such as a CD-ROM or other removable type data disc.

IPC 1-7

G06F 9/45; G06F 9/445

IPC 8 full level

B41J 29/38 (2006.01); G06F 3/12 (2006.01); G06F 9/445 (2006.01); G06F 11/00 (2006.01); G06F 13/00 (2006.01)

CPC (source: EP)

G06F 3/1204 (2013.01); G06F 3/123 (2013.01); G06F 3/1285 (2013.01); G06F 8/65 (2013.01)

Citation (search report)

  • [X] EP 0601704 A1 19940615 - CANON INFORMATION SYST INC [US]
  • [X] WO 0104749 A1 20010118 - AXIS AB [SE], et al
  • [A] EP 1043656 A2 20001011 - SUN MICROSYSTEMS INC [US]
  • [A] WO 0193577 A2 20011206 - GEN INSTRUMENT CORP [US]
  • [A] U.S. DEPARTMENT OF COMMERCE/NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY: "FIPS PUB 182-2 + change notice 1: Digital Signature Standard (DSS)", 27 January 2000 (2000-01-27), Gaithersburg, MD, pages 1 - 76, XP002345589, Retrieved from the Internet <URL:http://csrc.nist.gov/publications/fips/fips186-2/fips186-2-change1.pdf> [retrieved on 20050915]
  • See references of WO 03100610A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 03100610 A1 20031204; WO 03100610 A8 20040304; AU 2003273157 A1 20031212; AU 2003273157 A8 20031212; EP 1508091 A1 20050223; EP 1508091 A4 20051221; JP 2005527908 A 20050915

DOCDB simple family (application)

US 0316752 W 20030528; AU 2003273157 A 20030528; EP 03741823 A 20030528; JP 2004507997 A 20030528