Title:
LED traffic lamp control system
Document Type and Number:
Japanese Patent JP6363085
Kind Code:
B2
Abstract:
A traffic lamp and a method of controlling the traffic lamp based on a power signal are provided. The traffic lamp can include a controller and a light emitting element When a plurality of light emitting elements is included in the traffic lamp, each light emitting element is coupled with a separate controller. Each controller can be configured to include a predetermined light emitting timing sequence for the corresponding light emitting element. When the power signal is supplied to the traffic lamp, each controller determines a power signal characteristic such as a frequency or a period of the power signal and controls a light output of the light emitting element: based on the power signal characteristic and the light emitting timing sequence. A plurality of light emitting elements can be synchronized using the power signal applied to the traffic lamp.
Inventors:
Nether, Morne
Nguyen, Troun-Core
Poiriere, Christian
Nguyen, Troun-Core
Poiriere, Christian
Application Number:
JP2015536922A
Publication Date:
July 25, 2018
Filing Date:
October 11, 2013
Export Citation:
Assignee:
GE Writing Solutions, LRC
International Classes:
G08G1/095; H01L33/00
Domestic Patent References:
| JP2006048348A | ||||
| JP2006092512A |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa
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