FREQUENCY-SHIFT KEYING RECEIVER

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

14/282,333

專利證號

US 9,166,848 B2

專利獲證名稱

FREQUENCY-SHIFT KEYING RECEIVER

專利所屬機關 (申請機關)

國立暨南國際大學

獲證日期

2015/10/20

技術說明

一種頻移鍵控接收裝置，包含一低雜訊放大器及一頻移鍵控解調器。該頻移鍵控解調器包括：一注入鎖定式震盪電路、一相位偵測電路，及一低通濾波電路。該注入鎖定式震盪電路接收一輸入信號，並輸出一傾向於追隨該輸入信號的鎖定信號，並於本身的自振頻率大於/小於該輸入信號的頻率時，輸出與該輸入信號的相位差小於/大於0度的該鎖定信號。該相位偵測電路根據該輸入信號及該鎖定信號之相位差進行解調以輸出一基頻信號。藉由設置該注入鎖定式震盪電路及該相位偵測電路，可以大幅減少電路元件數量及電路複雜度，進而降低整體電路的功耗。 A frequency-shift keying (FSK) receiver includes an injection-locking oscillating circuit to receive a FSK input signal, and a phase detecting circuit. The injection-locking oscillating circuit outputs a locked signal having a phase that tracks a phase of the FSK input signal. A difference between the phases of the FSK input signal and the locked signal is associated with a difference between a frequency of the FSK input signal and a free-running frequency of the injection-locking oscillating circuit. The phase detecting circuit receives the FSK input signal and the locked signal, and outputs a baseband logic signal according to the difference between the phases of the FSK input signal and the locked signal.

備註

連絡單位 (專責單位/部門名稱)

研究發展處創業育成中心

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049-2910960

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