EP 0290161 A3 19890628 - VEHICLE COMMUNICATION SYSTEM USING ROADWAY LOOPS
Title (en)
VEHICLE COMMUNICATION SYSTEM USING ROADWAY LOOPS
Publication
Application
Priority
US 4783387 A 19870508
Abstract (en)
[origin: EP0290161A2] A method and system for transferring information between a moving vehicle and a stationary information location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals generated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle The information is encoded on a carrier having a frequency outside the normal frequency range of the vehicle detector system, preferably by interrupted carrier pattern processing.
IPC 1-7
IPC 8 full level
H04B 7/26 (2006.01); G08G 1/042 (2006.01); G08G 1/09 (2006.01); G08G 1/0967 (2006.01)
CPC (source: EP)
G08G 1/042 (2013.01); G08G 1/094 (2013.01); G08G 1/096716 (2013.01); G08G 1/096758 (2013.01); G08G 1/096783 (2013.01)
Citation (search report)
- [Y] EP 0096252 A2 19831221 - FLINTAB AB [SE]
- [A] EP 0126958 A2 19841205 - BOSCH GMBH ROBERT [DE]
- [A] GB 2138613 A 19841024 - SARASOTA AUTOMATION
- [Y] PHILIPS TELECOMMUNICATION REVIEW, vol. 41, no. 3, September 1983, pages 235-249, Hilversum, NL; N. VAN TOL et al.: "VECOM short-range communication with vehicles"
- [A] WIRELESS WORLD, vol. 81, no. 1474, June 1975, pages 269-270, Haywards Heath, Sussex, GB; "Aid for drivers"
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0290161 A2 19881109; EP 0290161 A3 19890628; CA 1310369 C 19921117; JP S6439129 A 19890209
DOCDB simple family (application)
EP 88303508 A 19880419; CA 566196 A 19880506; JP 11136588 A 19880507