ACOUSTIC WAVE SIGNAL READING CIRCUITS, CONTROL METHODS, AND ACOUSTIC WAVE SIGNAL READING APPARATUSES

    公开(公告)号:US20210333903A1

    公开(公告)日:2021-10-28

    申请号:US16605204

    申请日:2019-05-13

    Abstract: Embodiments of the present application provide acoustic wave signal reading apparatuses, acoustic wave signal reading circuits, and control methods thereof related to the field of acoustic wave signal reading technology. One embodiment of an acoustic wave signal reading circuit comprises: an acoustic wave receiver, a reset control circuit, a function circuit, and an output circuit; an acoustic wave receiver is configured to convert a received acoustic wave signal into an electrical signal and outputs the electrical signal to a first node; the reset control circuit outputs a voltage to the first node; the function circuit switches states based on the first node, a signal terminal, and a voltage terminal, and outputs a voltage to a second node to reset the second node or amplifies a potential of the first node and outputs to the amplified potential to the second node depending on a state of the function circuit.

    OPTICAL MEASUREMENT MODULE, OPTICAL MEASUREMENT CIRCUIT, AND ELECTRONIC DEVICE

    公开(公告)号:US20190178712A1

    公开(公告)日:2019-06-13

    申请号:US16315561

    申请日:2018-04-09

    Abstract: The present disclosure provides an optical measurement module which includes a detection sub-circuit, a comparison sub-circuit and a blocking layer, the blocking layer includes at least one blocking element, the detection sub-circuit comprises a first photosensitive element, and the detection sub-circuit is configured to output a detection signal according to light irradiation received by the first photosensitive element and an input signal of the detection sub-circuit; the comparison sub-circuit includes a second photosensitive element, the at least one blocking element in the blocking layer covers at least the second photosensitive element, the comparison sub-circuit is configured to output a comparison signal according to an input signal of the comparison sub-circuit; wherein the first photosensitive element and the second photosensitive element have a same structure, so that they have a same response to light irradiation and a same response to environment.

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