发明名称 |
ELECTRIC SIGNAL RESPONSIVE DEVICE |
摘要 |
A demodulator for television or like signals having modulated and cyclic signals intermixed comprises two cascaded demodulators having respective short-and long-time constants compared to the modulation content and a signal level sensor between the cascaded demodulators responsive to the cyclic signals connected to provide an input signal to the second demodulator. |
申请公布号 |
ZA7105554(B) |
申请公布日期 |
1972.04.26 |
申请号 |
ZA19710005554 |
申请日期 |
1971.08.19 |
申请人 |
COMMUNICATIONS PATENTS LTD |
发明人 |
BAKER H;QUINTON K;SMART D |
分类号 |
H04N5/44;H04N5/455 |
主分类号 |
H04N5/44 |
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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