Method for operating electronic apparatus with independent power sources

    公开(公告)号:US10289240B2

    公开(公告)日:2019-05-14

    申请号:US15603479

    申请日:2017-05-24

    Abstract: A method for operating electronic apparatus with independent power sources and having a functional circuit and a force and touch sensing circuit, the functional circuit and the force and touch sensing circuit are respectively powered by a first power source and a second power source different with the first power source. The method comprises (a) connecting the first power source and the second power source to different grounds; (b) the force and touch sensing circuit applying a capacitive sensing excitation signal to a force sensing electrode or a touch sensing electrode; and (c) the force and touch sensing circuit detecting a sensing signal from the force sensing electrode or the touch sensing electrode. In above step (b) or (c), the first power source and the second power source have no common current loop therebetween.

    High-efficiency fingerprint identification device

    公开(公告)号:US10192092B2

    公开(公告)日:2019-01-29

    申请号:US15412836

    申请日:2017-01-23

    Abstract: A high-efficiency fingerprint identification device includes an electrode substrate, plural 1-to-N switch circuits formed on the electrode substrate, plural sensing electrodes and plural wires. Each 1-to-N switch circuit has one first end, N second ends and m control ends. The m control ends control connection between the N second ends and the first end. Each sensing electrode corresponds to a nearby 1-to-N switch circuit. The wires are divided into sensing and driving lines and control lines. The sensing electrodes in each column correspond to a sensing and driving line. The sensing and driving line is connected to one of the N second ends of the 1-to-N switch circuits in the column. The sensing electrodes in each row correspond to m control lines. Each control line is connected to ones of the m control ends of the 1-to-N switch circuits in the row.

    Sensing device and method with functions of force measurement, touch control and fingerprint identification

    公开(公告)号:US10191604B2

    公开(公告)日:2019-01-29

    申请号:US15482029

    申请日:2017-04-07

    Abstract: A sensing device is provided with functions of force measurement, touch control and fingerprint identification. A first electrode layer has plural first electrodes. A switch and wire layer includes plural switch circuits, plural switch control lines and plural sensing signal lines. Each switch circuit is corresponding to an adjacent first electrode and electrically connected to the corresponding first electrode through a contact. Each switch control line includes two control wires and is electrically connected to two switch circuits. Each sensing signal line includes one sensing wire and is electrically connected to the two switch circuits. A force electrode layer has a force electrode. A compressible dielectric layer is arranged between the first electrode layer and the force electrode layer. The compressible dielectric layer is deformed when a force is applied, and restored to the original shape after the force is removed.

    Sensing device for force and tactile-proximity sensing

    公开(公告)号:US10180751B2

    公开(公告)日:2019-01-15

    申请号:US15414119

    申请日:2017-01-24

    Abstract: A sensing device for force and tactile-proximity sensing includes an upper substrate, a lower substrate, a first electrode layer having a plurality of first sensing electrodes, a second electrode layer having at least one second sensing electrode, a dielectric layer arranged between the upper substrate and the lower substrates, and a capacitance sensing circuit. In tactile-proximity sensing operation, the capacitance sensing circuit sends a touch control capacitance-exciting signal to a selected first sensing electrode and obtains a tactile-proximity sensing signal therefrom, wherein an tactile-proximity auxiliary signal with same phase as the touch control capacitance-exciting signal is sent to the at least one corresponding second sensing electrode. In force sensing operation, the capacitance sensing circuit sends a force capacitance-exciting signal to the corresponding second sensing electrode and obtains a force sensing signal therefrom, wherein a force counter-exciting signal is also sent to the selected first sensing electrode.

    Biometric recognition apparatus
    47.
    发明授权

    公开(公告)号:US09892305B2

    公开(公告)日:2018-02-13

    申请号:US15062657

    申请日:2016-03-07

    CPC classification number: G06K9/00026 G06K9/0002

    Abstract: A biometric recognition apparatus includes a substrate, a plurality of sensing electrodes, a plurality of traces, at least one shielding electrode, at least one insulating layer, and at least one fingerprint recognition IC. The sensing electrodes are arranged on one side of the substrate with at least one row to detect fingerprint information. Each trace is electrically coupled to at least one sensing electrode. The shielding electrodes are arranged above the traces to avoid the interference from fingers or external noise. The insulating layer is arranged between the shielding electrodes and the traces. The fingerprint recognition IC is connected to the corresponding sensing electrodes to detect the electric charge variations at the sensing electrodes.

    BIOMETRIC RECOGNITION APPARATUS WITH CURVED SUBSTRATE
    48.
    发明申请
    BIOMETRIC RECOGNITION APPARATUS WITH CURVED SUBSTRATE 审中-公开
    具有弯曲基底的生物识别装置

    公开(公告)号:US20160253542A1

    公开(公告)日:2016-09-01

    申请号:US15043823

    申请日:2016-02-15

    CPC classification number: G06K9/0002

    Abstract: A biometric recognition apparatus includes a curved substrate, a sensing electrode layer, and a plurality of selection switches. The sensing electrode layer is arranged on one side of the curved substrate. The sensing electrode layer has a plurality of sensing electrodes. The selection switches sequentially or dynamically select at least one sensing electrode to be one or more than one sensing electrode assemblies.

    Abstract translation: 生物识别装置包括弯曲基板,感测电极层和多个选择开关。 感测电极层设置在弯曲基板的一侧。 感测电极层具有多个感测电极。 选择顺序地或动态地选择至少一个感测电极为一个或多于一个感测电极组件。

    Touch control method integrating fingerprint recognition and touch operation modes

    公开(公告)号:US11809655B2

    公开(公告)日:2023-11-07

    申请号:US18104287

    申请日:2023-01-31

    Abstract: A touch control method is provided. The method includes: providing a touch device with multiple touch electrodes; determining whether an object is located in a sensing distance; detecting a sensing group sensing the object if the determination is yes; determining whether an electrode amount in the electrode group is between a first value and a second value; determining whether a sensing time of a predetermined proportion of the touch electrodes in the sensing group is equal to or greater than a predetermined time; executing a fingerprint recognition mode if the electrode amount is between the first value and the second value, and the sensing time is equal to or greater than the predetermined time; executing a touch operation mode if the electrode amount is less than the first value or greater than the second value, or the sensing time is less than the predetermined time.

    Rapid identification method for fingerprint

    公开(公告)号:US10664678B2

    公开(公告)日:2020-05-26

    申请号:US16668230

    申请日:2019-10-30

    Abstract: A rapid identification method for fingerprint first provides a fingerprint identification apparatus having a fingerprint sensing area and divides the fingerprint sensing area into fingerprint sensing sub-regions. In a registration stage, the method performs fingerprint sensing for the entire fingerprint sensing area to obtain fingerprint image for a whole fingerprint sensing area, fingerprint minutiae and relevant locations for the fingerprint minutiae and then pre-stores those data. In an identification stage, the method performs fingerprint sensing on a part of the fingerprint sensing sub-regions for a user to be identified and detects fingerprint minutiae and relevant locations for the fingerprint minutiae in the part of the fingerprint sensing sub-regions. The method compares the fingerprint minutiae and relevant locations detected in the identification stage with respect to the corresponding fingerprint minutiae and relevant locations in the registration stage in order to determine whether the user can be granted with access right.

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