发明名称 SIGNAL PROCESSOR AND VOICE DIALING TELEPHONE SYSTEM
摘要 PURPOSE:To obtain a signal processor capable of generating a signal in which noise is securely removed. CONSTITUTION:A frequency analyzing means 3 inputs a signal mixed with noise and analyzes frequency, a signal detecting means 20 detects a signal part from the signal mixed with noise for which the frequency is analyzed, a noise prediction means 6 inputs the signal mixed with noise for which the frequency analyzed and predicts the noise of the signal part based on noise information in the past, a cancellating means 7 deducts the predicted noise from the signal mixed with noise for which the frequency is analyzed and a band synthesizing means 8 synthesizes the band of a cancelled signal.
申请公布号 JPH04211523(A) 申请公布日期 1992.08.03
申请号 JP19910018573 申请日期 1991.02.12
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 KANE JOJI;NOHARA AKIRA
分类号 G10L15/20;G10L13/00;G10L15/02;G10L21/02;H04B1/10 主分类号 G10L15/20
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