HSIEH, CHIH CHENG,谢志成,謝志成,CHIOU, ALBERT TEN CHIH,邱衍智,邱衍智
申请号：
TW105121064
公开号：
TWI587836B
申请日:
2016.07.04
申请国别(地区):
TW
年份:
2017
代理人:
摘要：
The present invention discloses a physiological signal sensing device. The physiological signal sensing device includes a substrate, a first light-emitting diode, a second first light-emitting diode, a sensing array and a processing unit. The substrate includes a touch surface for contacted with a finger. The first and second light-emitting diodes respectively emit red light and infrared light to the finger through the touch surface. The sensing array senses, according to a first sensing period, the red light or the infrared light reflected or refracted from the finger to obtain a first physiological sensing signal. The sensing array senses, according to a second sensing period, the red light and the infrared light reflected or refracted from the finger to obtain a second physiological sensing signal. The first sensing period is shorter than the second sensing period. The processing unit operates the sensing array according to the first and second sensing periods. The processing unit respectively processes the first and second physiological sensing signal to obtain space information and energy information of the finger.本發明揭露一種生理訊號感測晶片,包括基板、第一發光二極體、第二發光二極體、感測陣列和處理單元。基板包括與手指相接觸之接觸面。第一和第二發光二極體分別發出紅色光和紅外光至手指。感測陣列依據第一感測週期感測反射自或折射自手指之紅色光或紅外光得到第一生理感測訊號,或是依據第二感測週期感測反射自或折射自手指之紅色光和紅外光得到第二生理感測訊號,其中第一感測週期小於第二感測週期。處理單元依據第一和第二感測週期運作感測陣列。處理單元分別處理第一和第二生理感測訊號得到手指之空間資訊和能量資訊。10‧‧‧生理訊號感測晶片131‧‧‧第一發光二極體132‧‧‧第二發光二極體14‧‧‧影像感測器140‧‧‧感測陣列142‧‧‧訊號讀出電路143‧‧‧體溫感測器15‧‧‧處理單元151‧‧‧指紋影像處理單元152‧‧‧血氧訊號處理單元16‧‧‧二極體驅動電路
