Patent EP0347355A1 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0347355A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Synchronised multi-topical information broadcasting permitting a reconfigurable listening strategy over a transmitter park and of radio programmes

Assignee: Telediffusion de France ets Public de Diffusion
•
Filing: 1989-06-14
•
Granted: —
•
Expires: 2009-06-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from French Le domaine de l'invention est celui de la diffusion de messages d'informa­tions par un parc d'émetteurs hertziens à fréquences d'émissions distribuées, à destination de récepteurs fixes ou mobiles. The field of the invention is that of the dissemination of information messages by a fleet of radio transmitters with distributed transmission frequencies, intended for fixed or mobile receivers. L'objectif est de permettre à un récepteur unique d'être à l'écoute, de façon optimisée, de plusieurs émetteurs diffusant des messages d'informations régulièrement mis à jour. The objective is to allow a single receiver to listen, in an optimized way, to several transmitters broadcasting regularly updated information messages. Cet objectif est atteint à l'aide d'une procédé caractérisé en ce que chaque émetteur (21, 22, 23) diffuse en permanence un cycle formé d'un nombre variable de messages, chaque cycle de messages étant découpé en blocs successifs de durée fixe et identique pour tous les émetteurs, en ce que chaque bloc comporte un marqueur informatif initial, dit marqueur d'état, et chaque cycle comporte un marqueur informatif initial (24, 25, 26), dit marqueur synchronisant, et en ce que les débuts de cycle (24, 25, 26) de chaque émetteur (21, 22, 23) du parc sont décalés d'un emetteur à l'autre This objective is achieved using a method characterized in that each transmitter (21, 22, 23) continuously broadcasts a cycle formed by a variable number of messages, each cycle of messages being divided into successive blocks of duration fixed and identical for all transmitters, in that each block includes an initial informative marker, known as a status marker, and each cycle includes an initial informative marker (24, 25, 26), known as a synchronizing marker, and in that the cycle starts (24, 25, 26) of each transmitter (21, 22, 23) of the fleet are shifted from one transmitter to another

Inventors

  • 👤 Denis Renault
  • 👤 Jean-Pierre Bauduin
  • 👤 Pascal Leray

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-29 23:34
CPC Classifications
H; H04; H04H; H04H20/00; H04H20/26; G; G08; G08G; G08G1/00; G08G1/09; G08G1/091; G08G1/094; H04H60/00; H04H60/25; H04H20/53; H04H20/55; H04H2201/00; H04H2201/10; H04H2201/13; H04H60/68; H04H60/71

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

GB1514941A Cited
EP0033218A1 Cited
GB2195868A Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag