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    • 120. 发明申请
    • OPTICAL SENSING APPARATUS AND OPERATING METHOD THEREOF
    • 光学传感装置及其操作方法
    • US20160270677A1
    • 2016-09-22
    • US15054168
    • 2016-02-26
    • uPI semiconductor corp.
    • YU-TING LIN
    • A61B5/024A61B5/00G01D5/34
    • A61B5/02427A61B5/6886A61B5/7214A61B5/7221A61B2562/0257H03K17/941H03K2217/94108
    • An optical sensing apparatus includes a sensing unit, an analog/digital conversion unit, a switching unit, a first processing unit, and a second processing unit. The sensing unit provides a light sensing signal. The analog/digital conversion unit is coupled to sensing unit and converts light sensing signal into a digital light sensing signal. The switching unit is coupled to analog/digital conversion unit and selectively switched to a first mode or a second mode according to a mode control signal. The first processing unit and second processing unit are coupled to analog/digital conversion unit and switching unit. When switching unit is switched to first mode according to mode control signal, first processing unit generates a photoplethysmography (PPG) signal according to digital light sensing signal; when switching unit is switched to second mode according to mode control signal, second processing unit generates a proximity sensing signal according to digital light sensing signal.
    • 光感测装置包括感测单元,模拟/数字转换单元,切换单元,第一处理单元和第二处理单元。 感测单元提供光感测信号。 模拟/数字转换单元耦合到感测单元并将光感测信号转换成数字光感测信号。 开关单元耦合到模拟/数字转换单元,并根据模式控制信号选择性地切换到第一模式或第二模式。 第一处理单元和第二处理单元耦合到模拟/数字转换单元和开关单元。 当根据模式控制信号将切换单元切换到第一模式时,第一处理单元根据数字光感测信号产生光电容积描记术(PPG)信号; 当根据模式控制信号将切换单元切换到第二模式时,第二处理单元根据数字光感测信号产生接近感测信号。