Communications: electrical – External condition vehicle-mounted indicator or alarm – Highway information
Reexamination Certificate
2000-07-05
2002-10-15
Pope, Daryl (Department: 2632)
Communications: electrical
External condition vehicle-mounted indicator or alarm
Highway information
C340S995190, C340S901000, C340S907000, C340S539230
Reexamination Certificate
active
06466139
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to an information system for a traffic network, information of interest for travellers being transmitted, by a transmitter system, to data receivers in vehicles making use of the traffic network.
Such a system is disclosed in WO-90/05969, in which the traffic intensity of road sections is measured using infrared detectors and said information, after having been processed, is transmitted to pagers located in vehicles. On said pagers, the traffic intensity of the region is then shown using a graphic display on which the regional road network is shown, as well as the traffic intensity on the various roads. Although the known system gives an impetus to informing road users, the system does not extend beyond a specific region. Although the “region” may of course be chosen large, the consequence then is that the information becomes less specific for each road user.
SUMMARY OF THE INVENTION
The invention provides for a system as indicated hereinabove in which, however, the information may be transmitted more specifically to each road user, while the system is still usable over a large area (national, European).
The present invention represents a system with which said regional distribution of information may be carried out in such a way that for each user the relevant information travels along with him, as it were. For this purpose, the invention provides for means by which the pager used by the traveller for (inter alia) receiving traffic information, is automatically switched from one to the other “information region”. The traffic network according to the invention is broken down into information regions having a regional (pager) identification code (RIC) each, and means to provide pagers (in a vehicle), upon entry into a new region, with the RIC in force for said new region. In doing so, of course, use must be made of (modern) pagers which are suitable for setting the RIC by an external code signal. Said type of pager is capable of receiving and displaying messages which are addressed to the (an) individual pager ID [=identifier], but also messages which are addressed to a collective ID, as a result of which one and the same message may be simultaneously passed along to various pagers. Pagers with which said collective ID is capable of being set from the outside may be used in the system according to the invention. The collective ID is preferably set using beacon transmitters.
REFERENCES:
patent: 6097313 (2000-08-01), Takahashi et al.
patent: 6317058 (2001-11-01), Lemelson et al.
Koninklijke KPN N.V.
Michaelson Peter L.
Michaelson & Wallace
Pope Daryl
Skafar Janet M.
LandOfFree
Information system for road traffic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Information system for road traffic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information system for road traffic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2988920