EP 0329641 A3 19920122 - RECEIVING DEVICE FOR SIGNALS TRANSMITTED ON THE BASIS OF THE IUR STANDARD TO VEHICLES, ESPECIALLY RAILWAY VEHICLES
Title (en)
RECEIVING DEVICE FOR SIGNALS TRANSMITTED ON THE BASIS OF THE IUR STANDARD TO VEHICLES, ESPECIALLY RAILWAY VEHICLES
Publication
Application
Priority
AT 34088 A 19880215
Abstract (en)
[origin: EP0329641A2] A receiving device for signals which are transmitted at alternating equidistant transmission frequencies on the basis of the IUR standard by transmitting aerials along a route, has an input part (4-11) of broad-band design for all the signal frequencies to be received, to which receiving channels (12-14), the number of which corresponds to the number of signal frequencies to be received and in which the signal frequencies are transposed downwards in mixing stages (16-20) and then amplified and demodulated in amplifier-demodulators (26-28), are connected via narrow-band filters (15-17). On the one hand, the demodulated output signals are fed directly to a switching matrix (32) and, on the other hand, are used for the derivation, via quality and/or quantity evaluation stages (33-35 and/or 39-41), of control signals in digital form which are applied to the switching matrix (32), so that the latter supplies the best signal at the output (45). <IMAGE>
IPC 1-7
IPC 8 full level
G08C 19/00 (2006.01); B61L 1/12 (2006.01); B61L 3/12 (2006.01); H04B 7/26 (2006.01)
CPC (source: EP)
B61L 3/125 (2013.01); B61L 3/126 (2013.01)
Citation (search report)
- [A] DE 3231564 A1 19840301 - SIEMENS AG [DE]
- [A] DE 3109849 A1 19820923 - BLAUPUNKT WERKE GMBH [DE]
- [A] FR 2322504 A1 19770325 - AUTOPHON AG [CH]
- [A] DE 1591556 A1 19701008 - SIEMENS AG
- [A] US 3158864 A 19641124 - LEHAN FRANK W
Designated contracting state (EPC)
BE CH DE IT LI LU NL SE
DOCDB simple family (publication)
EP 0329641 A2 19890823; EP 0329641 A3 19920122; EP 0329641 B1 19940601; AT 391573 B 19901025; AT A34088 A 19900415; BA 96108 A 19981228; CS 275720 B6 19920318; CS 8900929 A2 19910411; DD 279134 A5 19900523; DE 58907722 D1 19940707; FI 890594 A0 19890208; FI 890594 A 19890816; FI 94303 B 19950428; FI 94303 C 19950810; HR P920604 A2 19940430; HR P920604 B1 19971031; HU 207188 B 19930301; HU T52900 A 19900828; PL 159890 B1 19930129; PL 277729 A1 19890904; RU 1838825 C 19930830; SI 8910331 A 19970228; UA 12996 A 19970228; YU 33189 A 19920720; YU 47301 B 19950131
DOCDB simple family (application)
EP 89890036 A 19890210; AT 34088 A 19880215; BA 960108 A 19960529; CS 92989 A 19890213; DD 32573689 A 19890213; DE 58907722 T 19890210; FI 890594 A 19890208; HR P920604 A 19920929; HU 65189 A 19890214; PL 27772989 A 19890215; SI 8910331 A 19890214; SU 4613468 A 19890214; UA 4613468 A 19890214; YU 33189 A 19890214