Traffic light system and method for using the same
US8253593B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 21, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Nov 17, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/095
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A traffic light system includes a traffic light unit and at least one reminding unit. The traffic light unit includes a plurality of traffic lights, a detecting module connected to the traffic lights, and a wireless communication module connected to the detecting module. Each reminding unit includes a central processing unit (CPU) and a signaling module, such as a speaker module connected to the CPU. The detecting unit detects the working statuses of the traffic lights and generates corresponding detect signals transmitted to the wireless communication module, the wireless communication module sends the detect signals to the reminding unit in a predetermined reminding area, the CPU processes the detect signals to obtain the workings statuses of the traffic lights and controls the speaker module to play corresponding audio signals to remind the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.