Invention Application
US20150133069A1 FM RECEIVER WITH FREQUENCY DEVIATION-DEPENDENT ADAPTIVE CHANNEL FILTER
审中-公开
FM接收机与频偏相关的自适应信道滤波器
- Patent Title: FM RECEIVER WITH FREQUENCY DEVIATION-DEPENDENT ADAPTIVE CHANNEL FILTER
- Patent Title (中): FM接收机与频偏相关的自适应信道滤波器
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Application No.: US14080551Application Date: 2013-11-14
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Publication No.: US20150133069A1Publication Date: 2015-05-14
- Inventor: Eunmo Kang , Yossef Tsfaty , Le Nguyen Luong
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Main IPC: H04B1/12
- IPC: H04B1/12 ; H04L27/14

Abstract:
Methods, systems, and devices are described for wireless communications in a frequency modulation (FM) receiver with a frequency deviation-dependent adaptive channel filter. A maximum frequency deviation of an FM broadcast signal may be estimated. One or more coefficients of a channel filter may be adapted based at least in part on the maximum frequency deviation. The coefficient adaptation may include identifying a set of coefficients corresponding to the maximum frequency deviation and applying the set of coefficients to the channel filter. The set of coefficients may be identified by selecting one of multiple sets of coefficients stored in memory. In some instances, a signal quality metric (e.g., signal-to-noise ratio (SNR)) may be identified and may be used to modify a value of one or more of the set of coefficients applied to the channel filter.
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