发明名称 |
METHOD OF ATTENUATING UNDESIRED SPURIOUS SIGNALS IN A MODULATED SIGNAL |
摘要 |
<p>A stereophonic signal generator for generating a composite signal for effectively attenuating undesired spurious signals in a modulated signal, e.g., in a four channel stereophonic signal. In the generator, the main spurious signal, which is a spurious signal most closely adjacent to a given or desired frequency band for a necessary signal, is cancelled by a cancellation signal which is in a compensation relationship with the main spurious signal. Thus, residual spurious signals are attenuated easily by simple filters without degrading the necessary signals.</p> |
申请公布号 |
CA1026429(A) |
申请公布日期 |
1978.02.14 |
申请号 |
CA19730189048 |
申请日期 |
1973.12.28 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YAMAZAKI, OSAMU;MIKI, SUKEICHI;TAKEZAKI, TSUNEO |
分类号 |
H03C1/04;H04H20/89;(IPC1-7):04H5/00 |
主分类号 |
H03C1/04 |
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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