Portable appliance for informing the users of a bus network abou

Details Portable appliance for informing the users of a bus network abou Portable appliance for informing the users of a bus network abou

1997-04-30

2000-08-01

Swarthout, Brent A.

Communications: electrical

Vehicle position indication

At remote location

340991, 701117, G08G 1123

Patent

active

06097317&

ABSTRACT:
The portable appliance informs users about waiting times at stops in a bus network, the appliance comprising a radio receiver to receive data enabling waiting times to be determined, an interrogation keypad, a central unit for evaluating the estimated time of arrival of the next bus at a particular stop, a screen for displaying the waiting time for said bus, and a sound emitter. The central unit is designed to update cyclically the estimated time of arrival for the next bus and to actuate the sound emitter when said estimated time of arrival differs excessively from the time of arrival initially estimated the last time the appliance was interrogated by the user.

REFERENCES:
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patent: 5172092 (1992-12-01), Nguyen et al.
patent: 5461374 (1995-10-01), Lewiner et al.
patent: 5483454 (1996-01-01), Lewiner et al.
patent: 5493295 (1996-02-01), Lewiner et al.
patent: 5657010 (1997-08-01), Jones
patent: 5724243 (1998-03-01), Westerlage et al.
patent: 5736940 (1998-04-01), Burgeher
Burgener et al., "A Personal Transit Arrival Time Receiver,"0 IEEE-IEE Vehicle Navigation & Information Systems Conference, Ottawa--VNIS '93.
French Search Report dated Jan. 13, 1997, French Appl. No. FR 9605561.

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