EP 0347355 B1 19930922 - SYNCHRONISED MULTI-TOPICAL INFORMATION BROADCASTING PERMITTING A RECONFIGURABLE LISTENING STRATEGY OVER A TRANSMITTER PARK AND OF RADIO PROGRAMMES
Title (en)
SYNCHRONISED MULTI-TOPICAL INFORMATION BROADCASTING PERMITTING A RECONFIGURABLE LISTENING STRATEGY OVER A TRANSMITTER PARK AND OF RADIO PROGRAMMES
Publication
Application
Priority
FR 8808349 A 19880617
Abstract (en)
[origin: EP0347355A1] The field of the invention is that of the broadcasting of information messages by a park of radio transmitters with distributed transmission frequencies, destined for fixed or mobile receivers. The objective is to allow a single receiver to be listening, in an optimised way, to several transmitters broadcasting regularly updated information messages. This objective is achieved with the aid of a method characterised in that each transmitter (21, 22, 23) continuously broadcasts a cycle made up of a variable number of messages, each cycle of messages being partitioned into successive blocks of fixed duration, identical for all the transmitters, in that each block comprises an initial informatory marker, termed the state marker, and each cycle comprises an initial informatory marker (24, 25, 26), termed the synchronising marker, and in that the starts of cycle (24, 25, 26) of each transmitter (21, 22, 23) of the park are shifted from one transmitter to the next. <IMAGE>
IPC 1-7
IPC 8 full level
G08G 1/09 (2006.01); H04H 20/26 (2008.01); H04H 60/25 (2008.01); H04H 20/55 (2008.01); H04H 60/71 (2008.01)
CPC (source: EP)
G08G 1/094 (2013.01); H04H 20/26 (2013.01); H04H 60/25 (2013.01); H04H 20/55 (2013.01); H04H 60/71 (2013.01); H04H 2201/13 (2013.01)
Designated contracting state (EPC)
DE ES GB NL
DOCDB simple family (publication)
EP 0347355 A1 19891220; EP 0347355 B1 19930922; DE 68909321 D1 19931028; DE 68909321 T2 19940120; ES 2046522 T3 19940201; FR 2633122 A1 19891222; FR 2633122 B1 19901109
DOCDB simple family (application)
EP 89460017 A 19890614; DE 68909321 T 19890614; ES 89460017 T 19890614; FR 8808349 A 19880617