发明名称 Dual demodulation mode AM radio
摘要 Apparatuses and methods for receiving an amplitude modulated signal in one of two modes depending on the quality of the received signal. In a first mode, the amplitude modulated signal is converted directly to a baseband signal. In a second mode, the amplitude modulated signal is converted to an intermediate frequency signal. The present invention advantageously combines direct conversion and image-rejection heterodyne receiver topologies with a relatively large degree of component reuse and relatively few additional components.
申请公布号 US7804911(B2) 申请公布日期 2010.09.28
申请号 US20070740159 申请日期 2007.04.25
申请人 SEIKO EPSON CORPORATION 发明人 MELTZER DAVID;BLUM GREGORY A.;PADAPARAMBIL MURALIKUMAR A.
分类号 H04L27/02 主分类号 H04L27/02
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