Bus door observation system
US5874989A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1996 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Dec 9, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/183
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A vehicle installed monitoring system which allows a driver of a bus or a like vehicle to observe an area outside the vehicle and around the vehicle door. The vehicle installed monitoring system comprises a video camera mounted on the vehicle and connected to a monitor disposed near the driver. The video camera is mounted so as to view the area surrounding the vehicle door, and includes an attached microphone which transmits noises around the area to the monitor. The monitor includes a video display and a loudspeaker to allow the driver to audio-visually monitor the area surrounding the vehicle door. The monitor also includes a reminder device, a flashing light in this case, which attracts the driver's attention and reminds the driver to inspect the monitor and verify that the area around the door is clear before driving off. The camera, microphone and monitor are activated when the driver opens the vehicle door. The flashing light is activated when the driver closes the vehicle door and remains activated for a predetermined time period. The camera, microphone and monitor remain activated until the driver operates a reset switch to reset the monitoring system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.