Systems for informing users about waiting times for buses at stops in a network
US5461374A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | May 18, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/127
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for informing users of a bus network about waiting times for buses at stops of the network comprises means (3-6) for generating and transmitting electrical signals representative of the distance (d) between each bus (1) and the "next" stop (2), and means (7) associated with each stop and organized to receive said signals, to select therefrom those signals that concern said stop, and to display at said stop data relating to the waiting times for the "approaching" buses. The system also includes means for generating electrical signals representative of two past real average bus speeds relating to two different periods immediately before the instant at which the signals are generated, and means for using the average speeds in order to determine the waiting times to be displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.