Simultaneously illuminating traffic light signals at different ranges
US9620010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2013 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Aug 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/095
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of controlling a traffic light having at least two distinguishable light signals is provided herein. The method may include the following steps: obtaining a lighting pattern that determines an order of turning “on” and turning “off” said light signals over time; and illuminating the light signals based on the lighting pattern, such that over at least one period of time, a first light of the at least two distinguishable light signals is visible from a first distance range from the traffic light and a second light of the at least two distinguishable light signals is visible from a second distance range from the traffic light, wherein the first and the second distance ranges are non-overlapping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.