Communications: electrical – Vehicle position indication – At remote location
Patent
1994-06-02
1996-01-09
Swarthout, Brent A.
Communications: electrical
Vehicle position indication
At remote location
340988, G08G 1123
Patent
active
054832349
ABSTRACT:
The installation is intended to inform users of a bus network about waiting times for buses at stops in the network, the installation including a central station suitable for transmitting radio signals relating to the real instantaneous positions of the buses and portable receiver appliances (1) suitable for displaying waiting times on their own screens (3). Each appliance has an appliance identification symbol recorded therein and also (at 11) an expiry date, and it is possible to obtain the desired displays on the screen only if said appliance is used earlier than said date. Provision is made for renewing the appliance remotely for new subscription periods at the end of each subscription.
REFERENCES:
patent: 4350969 (1982-09-01), Greer
patent: 4730285 (1988-03-01), Lie
patent: 4799162 (1989-01-01), Shinkawa et al.
patent: 4857925 (1989-08-01), Brubaker
patent: 5021780 (1991-06-01), Fabiano et al.
patent: 5086389 (1992-02-01), Hassett et al.
patent: 5168451 (1992-12-01), Bolger
patent: 5339000 (1994-08-01), Bashan et al.
patent: 5343237 (1994-08-01), Morimoto
Applicant admitted prior art of French patent #9209042 in the disclosure of this application.
Carreel Eric
Decaux Jean-Claude
Lewiner Jacques
Decaux Jean-Claude
Lee Benjamin C.
Swarthout Brent A.
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