| 发明名称 |
ELASTIC SURFACE WAVE DEVICE |
| 摘要 |
PURPOSE:To suppress greatly the disturbing signal and thus to enhance the filter performance, by installing the weighted roller screen type electrode which is analized into the area where the signal waves reflected from two edges feature an effective path difference of lambda/4N. |
| 申请公布号 |
JPS547257(A) |
申请公布日期 |
1979.01.19 |
| 申请号 |
JP19770072056 |
申请日期 |
1977.06.20 |
| 申请人 |
HITACHI LTD |
发明人 |
NORO YOSHIHIKO;HAZAMA TAKESHI;YAMADA JIYUN;YANAGIHARA HITOSHI;MIURA YOSHITSUGU |
| 分类号 |
H03H3/08;H03H9/02;H03H9/145;H03H9/64 |
主分类号 |
H03H3/08 |
| 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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