NON-CONTACT PHASE-LOCKED AND SELF-INJECTION-LOCKED VITAL SIGN SENSOR

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

16/402,301

專利證號

US 11,368,160 B2

專利獲證名稱

NON-CONTACT PHASE-LOCKED AND SELF-INJECTION-LOCKED VITAL SIGN SENSOR

專利所屬機關 (申請機關)

國立臺灣科技大學

獲證日期

2022/06/21

技術說明

A new phase-locked and self-injection-locked radar sensor with a self-oscillating active-integrated-antenna and a phase-locked-loop demodulator is presented for noncontact vital sign detection. The AIA is developed to simultaneously radiate the radio-frequency signal and receive the scattered-back injection signal, which is phase-modulated by the chest movement of the human subject. According to the injection-locking theory, the oscillation frequency of the AIA will be shifted by injecting a signal with a phase variation, which amounts to the frequency modulation. Hence, the vital sign can be demodulated by a PLL demodulator. The developed radar sensor has been experimentally verified as the human subject is located at the distances of 1.5 m away from the radar sensor.

備註

連絡單位 (專責單位/部門名稱)

技術移轉中心

連絡電話

02-2733-3141#7346

網址