发明名称 |
Traffic signal devices and methods of using the same |
摘要 |
A traffic control system and device is provided. The traffic control system of the instant invention permits two-way communication between a plurality of traffic signal devices and/or other devices or locations. Each traffic signal device locally controls the state of the traffic signals, while communication between the traffic signal devices is used to synchronize the internal timers or clocks of the plurality of traffic control devices.
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申请公布号 |
US8362923(B2) |
申请公布日期 |
2013.01.29 |
申请号 |
US20090512599 |
申请日期 |
2009.07.30 |
申请人 |
EMERGENCY TRAFFIC SYSTEMS INC.;WITTE EDWARD;WILKERSON GLENN |
发明人 |
WITTE EDWARD;WILKERSON GLENN |
分类号 |
G08G0001/000095 |
主分类号 |
G08G0001/000095 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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