EP 0685828 B1 19970813 - Data transmission from a fixed station to a moving object
Title (en)
Data transmission from a fixed station to a moving object
Title (de)
Datenübertragung von einer Feststation zu einem bewegten Körper
Title (fr)
Transmission de données d'une station fixe vers un objet mobile
Publication
Application
Priority
- DE 9409056 U 19940603
- DE 4445248 A 19941219
Abstract (en)
[origin: EP0685828A1] Directions to the mobiles (28, 31, 32) to follow selected routes (eg. 29) to their allotted parking spaces (30) are encoded in the data words from fixed transmitters (35-40). Each data words contains two directional bits characterising the course of the mobile addressed, a change-of-direction bit and at least one check digit. The change-of-direction bit serves to adapt the directional bits after changes of course. The infrared transmitters and receivers operate in accordance with pulse pause modulation, yielding advantages esp. for battery-powered transmitters backed up by solar cells. <IMAGE>
IPC 1-7
IPC 8 full level
G08G 1/0967 (2006.01)
CPC (source: EP)
G08G 1/096716 (2013.01); G08G 1/09675 (2013.01); G08G 1/096783 (2013.01); G08G 5/0013 (2013.01); G08G 5/065 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL
DOCDB simple family (publication)
EP 0685828 A1 19951206; EP 0685828 B1 19970813; AT E156923 T1 19970815; DE 59500498 D1 19970918; ES 2105817 T3 19971016
DOCDB simple family (application)
EP 95108628 A 19950606; AT 95108628 T 19950606; DE 59500498 T 19950606; ES 95108628 T 19950606