EP 0369373 B1 19940112 - Initialization information transmitting system between fixed installations and trains.
Title (en)
Initialization information transmitting system between fixed installations and trains.
Title (de)
Initialisierungsnachtrichten-Übertragungssystem zwischen einer festen Installation und Zügen.
Title (fr)
Système de transmission d'information d'initialisation entre des installations fixes et des trains.
Publication
Application
Priority
FR 8815006 A 19881118
Abstract (en)
[origin: EP0369373A1] Initialisation information transmitting system, between fixed installations and trains. It comprises, an initialisation loop (bi), physically constituted as a speed monitoring loop, a speed monitoring coil (cd), also used for receiving initialisation messages, a source of initialisation messages (si) connected to the initialising loop and delivering a message in the form of an initialisation carrier wave, having an initialisation frequency modulated by frequency jumps, the level of which is markedly greater than the level of the speed monitoring carrier wave, and initialisation information detecting circuits (di) connected to the speed monitoring coil and detecting the modulation by frequency jumps in order to deliver a received initialisation message, subordinate to a switching device (ad, dp, sd, ri) responding only upon receiving the initialisation frequency, when the latter possesses a level exceeding a specified threshold. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
B61L 3/121 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0369373 A1 19900523; EP 0369373 B1 19940112; AU 4477889 A 19900524; AU 617555 B2 19911128; BR 8905834 A 19900612; CA 2003268 A1 19900518; CA 2003268 C 19940419; DE 68912279 D1 19940224; DE 68912279 T2 19940428; FR 2639306 A1 19900525; FR 2639306 B1 19901221; US 5074499 A 19911224
DOCDB simple family (application)
EP 89120993 A 19891113; AU 4477889 A 19891117; BR 8905834 A 19891120; CA 2003268 A 19891117; DE 68912279 T 19891113; FR 8815006 A 19881118; US 43756889 A 19891117