Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerotrain SA
Original Assignee
Aerotrain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aerotrain SAfiledCriticalAerotrain SA
Priority to FR7237975ApriorityCriticalpatent/FR2205030A5/fr
Application grantedgrantedCritical
Publication of FR2205030A5publicationCriticalpatent/FR2205030A5/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
B61L3/16—Continuous control along the route
B61L3/18—Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train
B61L3/20—Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train employing different frequencies or coded pulse groups, e.g. using currents carried by traction current
