发明名称 |
Drive-in theater audio system |
摘要 |
A drive-in movie theater audio system provides sound to the patrons over their car radios and connects to each radio through a novel lead-in which couples the car radio antenna to a transmission bus connected to a central broadcast band transmitter. The lead-in employs a pair of elongated wire sections supported parallel to one another to capacitively couple the broadcast band signal to the car antenna.
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申请公布号 |
US4047109(A) |
申请公布日期 |
1977.09.06 |
申请号 |
US19750611635 |
申请日期 |
1975.09.09 |
申请人 |
SEKIGUCHI, KIICHI |
发明人 |
SEKIGUCHI, KIICHI |
分类号 |
H04B1/10;H04B1/18;H04H20/63;H04H20/76;H04H20/77;H04R27/00;(IPC1-7):H04H1/00 |
主分类号 |
H04B1/10 |
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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