Automatic message announcement system
US4307859A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 13, 1980 |
| Grant date | Dec 29, 1981 |
| Priority date | — |
| Expiry date | Feb 13, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C22/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automatic message announcement system for trains in the railroad station premises, including a train tracking circuit which tracks the location of approaching train, a trains information memory which stores information concerning each train, an edition circuit which combines the train information read out from said train information memory and a series of message patterns which include portions to be completed and which edits the message patterns to produce a series of short messages arranged sequentially according of their priority order to the content, an announcement message selection circuit which determines up to which short message among those arranged sequentially according to said priority order should be announced, in accordance with the location of the train at the time the announcement starts, and an automatic announcement system which includes a voice memory containing addressable voice segments for annoucing the message determined above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.