发明授权
- 专利标题: Method of intermediate frequency filtration in a television receiver
- 专利标题(中): 电视接收机中的中频滤波方法
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申请号: US963151申请日: 1978-11-22
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公开(公告)号: US4245200A公开(公告)日: 1981-01-13
- 发明人: Sadao Takahashi , Hitoshi Hirano , Sadao Matsumura
- 申请人: Sadao Takahashi , Hitoshi Hirano , Sadao Matsumura
- 申请人地址: JPX Kawasaki
- 专利权人: Tokyo Shibaura Electric Co., Ltd.
- 当前专利权人: Tokyo Shibaura Electric Co., Ltd.
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX51/29889 19760322
- 主分类号: H03H9/25
- IPC分类号: H03H9/25 ; G10K11/36 ; H03H3/08 ; H03H3/10 ; H03H9/02 ; H01L41/18 ; H03H9/64
摘要:
An elastic surface wave device includes a transducer having an elastic surface wave propagated in the direction of 75 to 133 degrees to a Y-axis on an X-cut lithium tantalate (LiTaO.sub.3) substrate.
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