发明名称 |
Optical signal transmitter |
摘要 |
An optical signal transmitter for use by priority vehicles for remotely controlling traffic signals, including a light source which is flashed at a controlled repetition rate to transmit an optical signal to a receiver located at the traffic intersection. Circuitry associated with the light source includes a comparator network for disabling an electrical energy supply in the event of certain predetermined operating conditions.
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申请公布号 |
US4234967(A) |
申请公布日期 |
1980.11.18 |
申请号 |
US19780952959 |
申请日期 |
1978.10.20 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
HENSCHEL, JOHN P. |
分类号 |
G08C23/04;G08G1/087;(IPC1-7):H04B9/00;H04B1/04;H02J9/02;H01M10/44 |
主分类号 |
G08C23/04 |
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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