Invention Grant
- Patent Title: Frequency modulation receiver and receiving method thereof
- Patent Title (中): 频率调制接收机及其接收方法
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Application No.: US12619960Application Date: 2009-11-17
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Publication No.: US08509717B2Publication Date: 2013-08-13
- Inventor: Huei-Chiang Shiu
- Applicant: Huei-Chiang Shiu
- Applicant Address: TW NeiHu District, Taipei
- Assignee: RichWave Technology Corp.
- Current Assignee: RichWave Technology Corp.
- Current Assignee Address: TW NeiHu District, Taipei
- Agent Winston Hsu; Scott Margo
- Priority: TW98114802A 20090505
- Main IPC: H04B1/18
- IPC: H04B1/18 ; H04K3/00

Abstract:
A frequency modulation receiver is provided. The frequency modulation receiver includes an automatic frequency controller and a signal detector. The automatic frequency controller receives a demodulated frequency modulation signal demodulated from a radio frequency signal and outputs a control voltage to control an oscillation frequency of a local oscillator. The signal detector coupled to the automatic frequency controller receives the control voltage and determines whether the radio frequency signal is a frequency modulation signal according to the control voltage and a predetermined voltage range.
Public/Granted literature
- US20100285764A1 FREQUENCY MODULATION RECEIVER AND RECEIVING METHOD THEREOF Public/Granted day:2010-11-11
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