发明授权
- 专利标题： Binary logic device having input and output alternating signals
- 专利标题（中）： 具有输入和输出交替信号的二进制逻辑器件
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申请号： US520687申请日： 1983-08-05
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公开(公告)号： US4564774A公开(公告)日： 1986-01-14
- 发明人: Korefumi Tashiro , Hiroyuki Akiyama
- 申请人： Korefumi Tashiro , Hiroyuki Akiyama
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX57-137312 19820809
- 主分类号： H03K19/00
- IPC分类号： H03K19/00 ; H03K19/007 ; H03K19/20 ; H03K19/23 ; H03K19/003
摘要：
There is provided a logic device wherein an alternating input signal having a frequency which is one of two frequencies allotted to two input logical values, respectively, positive logic "1" and negative logic "0", is inputted to the device. An output logical value is decided depending on the determination which frequencies the input frequency coincides with or not, and an alternating output signal having a frequency which corresponds to the output logical value is delivered out of the device. The logic device, even when constituted with semiconductor elements, can have highly reliable fail-safe capability and can be reduced in size and weight.
公开/授权文献
- US5615886A Word forming board game with colored transparent tiles 公开/授权日：1997-04-01
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