发明名称 Method for extending the bandwidth of analog recorded speech signals for a dictation apparatus
摘要 <p>After reception by a microphone, a speech signal is split into a low frequency (LF) component and a high frequency (HF) component. The LF component is stored and the HF component is digitized and compressed. The processed signal component is synchronized with the LF component and stored. During playback the stored HF digitized signal and the compared signal component are reconverted into an analog speech signal and exactly synchronized with the LF component, using the stored synchronization data. Independent claims are included for a recording apparatus and for its cassette.</p>
申请公布号 EP1059637(B1) 申请公布日期 2008.02.27
申请号 EP20000111728 申请日期 2000.06.02
申请人 GBS HOLDING GMBH 发明人 ZHU, MING, DR.
分类号 G11B21/10;G10L15/26;G11B20/10;G11B21/02;G11C7/16 主分类号 G11B21/10
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