System for informing users about urban transport
US5493295A · kind A · utility
69Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | May 18, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/123
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for displaying waiting times for buses (2) approaching various stops (1) of a network. The system comprises means for generating electromagnetic signals (8) whose addresses are based on the buses, fixed receivers (9) of said signals for display purposes at the stops themselves, and preferably also portable appliances (10) also capable of receiving said signals and suitable for displaying the waiting times for buses at any stop of the network in response to interrogation by users bearing said appliances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.