Global Patent Index - EP 1125380 A2

EP 1125380 A2 20010822 - SYSTEM AND METHOD FOR INFRARED COMMUNICATION

Title (en)

SYSTEM AND METHOD FOR INFRARED COMMUNICATION

Title (de)

INFRAROTÜBERTRAGUNGSSYSTEM UND -VERFAHREN

Title (fr)

SYSTEME ET PROCEDE POUR COMMUNICATION INFRA-ROUGE

Publication

EP 1125380 A2 20010822 (EN)

Application

EP 99952777 A 19991029

Priority

  • IL 9900572 W 19991029
  • IL 12679998 A 19981029

Abstract (en)

[origin: WO0026686A2] A method and system for effecting bi-directional IR data communication between a plurality N of readers (21, 22, 23) and a plurality M of portable objects each having associated therewith a respective object transceiver (24, 25, 26, 27) which is initially dormant and has embedded therein a respective object ID uniquely identifying the object. Each reader transmits to an object transceiver a preamble containing the object ID for awaking the object transceiver from its initially dormant state, and a Reader Control Message (RCM) including a header; a respective reader ID so as to allow the reader to be addressed when required followed by up to K object IDs (K < M) each in respect of one of the object transceivers and each being followed by a respective command for controlling the respective object transceiver. Up to K data slots are allocated each for allowing communication of a data message between the respective reader and one of the object transceivers, and each of the M object transceivers may randomly select of one of R allocation slots for transmitting limited capacity data therein to the respective reader.

IPC 1-7

H04B 10/10; H04L 12/28

IPC 8 full level

G06K 7/00 (2006.01); G06K 7/10 (2006.01); H04B 10/114 (2013.01); H04L 12/28 (2006.01); H04L 12/56 (2006.01); G01S 17/74 (2006.01)

CPC (source: EP)

G06K 7/0008 (2013.01); G06K 7/10039 (2013.01); G06K 7/10356 (2013.01); G06K 7/1097 (2013.01); H04B 10/1143 (2013.01); H04W 76/10 (2018.02); G01S 17/74 (2013.01); H04W 8/26 (2013.01); H04W 52/0216 (2013.01); H04W 52/0219 (2013.01); H04W 52/0229 (2013.01); H04W 72/04 (2013.01); Y02D 30/70 (2020.08)

Citation (search report)

See references of WO 0026686A3

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0026686 A2 20000511; WO 0026686 A3 20000908; AU 6486199 A 20000522; EP 1125380 A2 20010822; IL 126799 A 20050517; IL 126799 D0 19990817

DOCDB simple family (application)

IL 9900572 W 19991029; AU 6486199 A 19991029; EP 99952777 A 19991029; IL 12679998 A 19981029