Invention Grant
- Patent Title: Dual demodulation mode AM radio
- Patent Title (中): 双解调模式AM收音机
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Application No.: US11740159Application Date: 2007-04-25
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Publication No.: US07804911B2Publication Date: 2010-09-28
- Inventor: David Meltzer , Gregory A. Blum , Muralikumar A. Padaparambil
- Applicant: David Meltzer , Gregory A. Blum , Muralikumar A. Padaparambil
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Main IPC: H04L27/02
- IPC: H04L27/02

Abstract:
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.
Public/Granted literature
- US20080267313A1 Dual Demodulation Mode AM Radio Public/Granted day:2008-10-30
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