(19)

(11)

EP 1 836 826 A1

(12)

(43) Date of publication: 26.09.2007 Bulletin 2007/39 (21) Application number: 05819824.3 (22) Date of filing: 22.12.2005

(51) International Patent Classification (IPC):  H04L 29/06(2006.01) H04L 29/08(2006.01) G08B 25/08(2006.01) H04N 7/18(2006.01) (86) International application number: PCT/SE2005/002026 (87) International publication number: WO 2006/073348 (13.07.2006 Gazette 2006/28)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 10.01.2005 SE 0500071 (71) Applicant: Axis AB 223 69 Lund (SE)	(72) Inventors: TULLBERG, Joacim S-222 40 Lund (SE) ADOLFSSON, Johan S-247 34 Södra Sandby (SE) (74) Representative: Andersson, Mikael Per Robert  Awapatent AB Box 1066 S-251 10 Helsingborg S-251 10 Helsingborg (SE)