发明名称 |
ELASTIC SURFACE WAVE DEVICE |
摘要 |
PURPOSE:To improve the accuracy against the center frequency and to reduce the influence of unneeded waves, by transmitting signals with the use of the elastic surface wave group to which the odd-order high frequency group is added at the fundamental frequency of f0/(2n+1) against frequency f0 corresponding to the center frequency. |
申请公布号 |
JPS5399846(A) |
申请公布日期 |
1978.08.31 |
申请号 |
JP19770014228 |
申请日期 |
1977.02.14 |
申请人 |
HITACHI LTD |
发明人 |
HAZAMA TAKESHI;ISHIGAKI MASAHARU;NORO YOSHIHIKO |
分类号 |
H03H9/145;H03H3/08;H03H9/64 |
主分类号 |
H03H9/145 |
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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