发明名称 |
ELECTRONIC TIME SIGNAL CIRCUIT |
摘要 |
PURPOSE:To generate a stable time signal sound resembling a monotone natural sound by making the attenuated frequency signals and clock pulses, which are converted to have an integrated form by a transfer gate, pass through low pass filter of two stages thereby to generate the time signals. |
申请公布号 |
JPS53143374(A) |
申请公布日期 |
1978.12.13 |
申请号 |
JP19770059040 |
申请日期 |
1977.05.20 |
申请人 |
MATSUSHITA ELECTRIC WORKS LTD |
发明人 |
KURODA MINORU;ITOYAMA HIROSHI |
分类号 |
G10K15/04;G04C21/02;G04G13/00 |
主分类号 |
G10K15/04 |
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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