发明名称 |
Device for improving output waveform of manually controllable pulse generator for use in preset electronic tuning control device |
摘要 |
An output waveform of a manually operable tuning pulse generator of an electronic preset type tuning control device of a tuner using varactor diodes for a multi-band radio receiver is improved by using Schmitt trigger circuit means which may be provided with a trigger level checking circuit, both being provided as IC.
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申请公布号 |
US4210828(A) |
申请公布日期 |
1980.07.01 |
申请号 |
US19780912143 |
申请日期 |
1978.06.02 |
申请人 |
PIONEER ELECTRONIC CORP |
发明人 |
TAKAOKA, SABURO;TSUDA, YOUICHIRO |
分类号 |
H03L7/18;H03J5/02;H03L7/183;H04B1/26;(IPC1-7):H03K5/15 |
主分类号 |
H03L7/18 |
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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