EP 1991942 A1 20081119 - APPARATUS AND METHODS FOR ELECTROMAGNETIC IDENTIFICATION
Title (en)
APPARATUS AND METHODS FOR ELECTROMAGNETIC IDENTIFICATION
Title (de)
VORRICHTUNGEN UND VERFAHREN ZUR ELEKTROMAGNETISCHEN IDENTIFIKATION
Title (fr)
APPAREIL ET PROCÉDÉS D'IDENTIFICATION ÉLECTROMAGNÉTIQUE
Publication
Application
Priority
- GB 2007000734 W 20070302
- GB 0604341 A 20060303
Abstract (en)
[origin: WO2007099339A1] The invention relates to devices for use in RFID and similar systems and methods for operating such systems and devices. In particular, embodiments of the invention relate to active transponder tags, networked reader devices, and messaging protocols suitable for communications over the wireless interface between such tags and readers. These devices and protocols support message packets corresponding to a transponder class to which the transponder belongs, said class of transponders being one of a plurality of classes each characterised by aspects of the configuration of peripheral devices of transponders in that class, and wherein the message packet contains an indication it is a message from a transponder and an indication of the class of transponder from which the message originates, and one or more peripheral data fields according to the message packet structure of the transponder class.
IPC 8 full level
G06K 7/00 (2006.01); G06K 19/07 (2006.01)
CPC (source: EP)
G06K 7/0008 (2013.01); G06K 7/10297 (2013.01); G06K 19/0717 (2013.01); H04B 5/48 (2024.01); H04B 5/45 (2024.01); H04B 5/73 (2024.01); H04B 5/77 (2024.01)
Citation (search report)
See references of WO 2007099339A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007099339 A1 20070907; WO 2007099339 A8 20071025; AU 2007220298 A1 20070907; BR PI0708548 A2 20110531; CA 2642978 A1 20070907; CN 101432758 A 20090513; EP 1991942 A1 20081119; GB 0604341 D0 20060412
DOCDB simple family (application)
GB 2007000734 W 20070302; AU 2007220298 A 20070302; BR PI0708548 A 20070302; CA 2642978 A 20070302; CN 200780015747 A 20070302; EP 07705316 A 20070302; GB 0604341 A 20060303