Monitor for bus destination signs
US4325062A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1979 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Dec 6, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A message display monitor for a bus is disclosed in combination with a bus destination sign. A changeable alphanumeric destination sign (10) is automatically controlled by a control system (16) to display a selected message from a message memory (14). The message is selected by a manually actuated selector (12) which addresses the memory (14) according to a manual input which is specified in a look-up table which contains multiple messages. An electronic alphanumeric display monitor (18), specifically an LED display, is connected with the message memory (14) through a monitor control system (20) so that it will show the bus driver the message selected from the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.