EP 0155108 A3 19871202 - DETECTION SYSTEM
Title (en)
DETECTION SYSTEM
Publication
Application
Priority
GB 8404838 A 19840224
Abstract (en)
[origin: EP0155108A2] A detection system for use in monitoring traffic flow along a roadway in which the detector (1) is buried in the roadway (3) and transmits the information by radio frequency to a receiver (4) located at a remote location, the detector incorporating a transmission coil and a detection coil, the detection coil being responsive to entry and exit of an object into and from the detection field produced by the transmission coil.
IPC 1-7
IPC 8 full level
G08G 1/015 (2006.01); G08G 1/042 (2006.01); G08G 1/08 (2006.01); G08G 1/0967 (2006.01)
CPC (source: EP)
G08G 1/015 (2013.01); G08G 1/042 (2013.01); G08G 1/08 (2013.01)
Citation (search report)
- [Y] US 4276539 A 19810630 - ESHRAGHIAN KAMRAN, et al
- [Y] US 3839700 A 19741001 - DE LORENZO J, et al
- [A] DE 2505287 A1 19750814 - THOMSON CSF
- [A] EP 0096252 A2 19831221 - FLINTAB AB [SE]
- [A] US 3400365 A 19680903 - FRENCH WALTER K
- [A] US 2532231 A 19501128 - JARVIS KENNETH W
- [A] DE 3202626 A1 19830804 - ELMEG [DE]
- [A] US 3346842 A 19671010 - DIXON HAROLD A
- [A] US 4056815 A 19771101 - ANDERSON ARTHUR ERNEST
Designated contracting state (EPC)
CH DE FR GB LI NL SE
DOCDB simple family (publication)
EP 0155108 A2 19850918; EP 0155108 A3 19871202; GB 8404838 D0 19840328
DOCDB simple family (application)
EP 85301267 A 19850225; GB 8404838 A 19840224