Electronic device with fingerprint recognition circuit powered by dedicated power source

    公开(公告)号:US10055630B2

    公开(公告)日:2018-08-21

    申请号:US14959682

    申请日:2015-12-04

    CPC classification number: G06K9/0002

    Abstract: An electronic device with fingerprint recognition circuit powered by dedicated power source includes a functional circuit, a plurality of fingerprint sensing electrodes, and a fingerprint sensing control circuit. The functional circuit is powered by a first power source. The fingerprint sensing electrodes are provided for sensing a contact of a finger. The fingerprint sensing control circuit is powered by a second power source which is different from the first power source. The fingerprint sensing control circuit is connected to the fingerprint sensing electrodes for driving the fingerprint sensing electrodes to sense the fingerprint, wherein there is no common current loop between the first power source and the second power source during an operation of fingerprint sensing.

    Combinational sensing type fingerprint identification device and method
    32.
    发明授权
    Combinational sensing type fingerprint identification device and method 有权
    组合感知类型指纹识别装置及方法

    公开(公告)号:US09501094B2

    公开(公告)日:2016-11-22

    申请号:US14824711

    申请日:2015-08-12

    CPC classification number: G06F1/16 G06K9/0002

    Abstract: A combinational sensing type fingerprint identification device includes plural sensing electrodes; plural sensing electrode switches; plural first sensed signal connection lines, and a controller. Each sensing electrode switch corresponds to one sensing electrode and has a first terminal, a second terminal connected to a common signal, a third terminal connected to a corresponding sensing electrode, and a control terminal Each first sensed signal connection line is connected to the first terminals of the sensing electrode switches in one column. The controller is connected to the control terminal of each sensing electrode switch for controlling whether the sensing electrode switches are electrically connected to the common signal or corresponding first sensed signal connection lines. The controller configures the control terminals of the sensing electrode switches for allowing a part of the sensing electrodes to be electrically connected to the corresponding first sensed signal connection lines.

    Abstract translation: 组合感测型指纹识别装置包括多个感测电极; 多个感测电极开关; 多个第一感测信号连接线,以及控制器。 每个感测电极开关对应于一个感测电极并且具有第一端子,连接到公共信号的第二端子,连接到相应的感测电极的第三端子和控制端子每个第一感测信号连接线路连接到第一端子 的感测电极开关在一列。 控制器连接到每个感测电极开关的控制端子,用于控制感测电极开关是否电连接到公共信号或对应的第一感测信号连接线。 控制器配置感测电极开关的控制端,以使一部分检测电极与相应的第一感测信号连接线电连接。

    Safe electric power regulating circuit
    33.
    发明授权
    Safe electric power regulating circuit 有权
    安全电力调节电路

    公开(公告)号:US09385607B2

    公开(公告)日:2016-07-05

    申请号:US14277458

    申请日:2014-05-14

    Abstract: A safe electric power regulating circuit is connected between a power supply and a voltage boost/buck circuit to regulate the output voltage by the power supply to have a target voltage through the voltage boost/buck circuit. A switching device includes a switch unit, a first diode, and a first capacitor. The switch unit includes a first end, a second end, and a third end. The first end is connected to the power supply, and the second end is connected to the voltage boost/buck circuit. The switch unit is controlled to connect the third end to the first end or the second end. The first diode has one end connected to the first end of the switch unit. The first capacitor has one end connected to the third end of the switch unit and the other end connected to circuit ground.

    Abstract translation: 在电源和升压/降压电路之间连接有安全的电力调节电路,以通过电源调节输出电压以通过升压/降压电路具有目标电压。 开关装置包括开关单元,第一二极管和第一电容器。 开关单元包括第一端,第二端和第三端。 第一端连接到电源,第二端连接到升压/降压电路。 控制开关单元将第三端连接到第一端或第二端。 第一二极管的一端连接到开关单元的第一端。 第一电容器的一端连接到开关单元的第三端,另一端连接到电路地。

    High-precision fingerprint sensing method

    公开(公告)号:US11003885B1

    公开(公告)日:2021-05-11

    申请号:US16783330

    申请日:2020-02-06

    Abstract: A high-precision fingerprint sensing method includes providing a fingerprint sensor (10) having a plurality of transistor switches (Q), a plurality of sensing electrodes (SE), a plurality of gate lines (GL), a plurality of data lines (DL), arranging at least one sampling conductor (SC) near the gate lines (GL) to form a coupling capacitance between the sampling conductor (SC) and the gate lines (GL) and to render the sampling conductor (SC) sensing noise on the adjacent gate lines (GL), inverting the noise signal (Vn) obtained from the sampling conductor (SC) into a noise-suppressing signal (Vc) and sending the noise-suppressing signal (Vc) to the fingerprint sensor (10) to suppress noise of the fingerprint sensor (10) and enhance fingerprint sensing accuracy.

    Hovering and touch sensing apparatus with enhanced sensitivity

    公开(公告)号:US10725597B2

    公开(公告)日:2020-07-28

    申请号:US16042856

    申请日:2018-07-23

    Abstract: A hovering and touch sensing apparatus includes a plurality of touch sensing electrodes, a system circuit and a touch control circuit. When an operating object approaches to or touches the touch sensing electrodes for hovering or touch sensing operation, there is no common circuit loop between the system circuit and the touch control circuit to prevent the influence of the system circuit to the touch-sensing circuit. Besides, the touch control circuit sends a capacitance-exciting signal to the operating object through a first specific conductor of the system circuit, thus more effectively send the capacitance-exciting signal to the operating object and enhance the preciseness for sensing the touch sensing signal.

    Organic light emitting display apparatus with force and touch sensing

    公开(公告)号:US10671223B2

    公开(公告)日:2020-06-02

    申请号:US15480374

    申请日:2017-04-06

    Abstract: An organic light emitting display apparatus with force and touch sensing includes a touch protection layer, a touch electrode layer, a resilient material layer, a force electrode layer, a thin-film-encapsulation layer, a common electrode layer, an organic light emitting material layer and a thin film transistor substrate from top to bottom. The thin film transistor substrate includes a pixel electrode layer, a thin film transistor layer and a transistor substrate from top to bottom. The organic light emitting display apparatus further includes a display controller to drive the organic light emitting material layer and a force touch controller for sensing touch position on the touch electrode layer and force exerted on the force electrode layer.

    Electronic apparatus with independent power sources

    公开(公告)号:US10534471B2

    公开(公告)日:2020-01-14

    申请号:US15611786

    申请日:2017-06-02

    Abstract: An electronic apparatus with independent power sources includes a functional circuit, a plurality of touch sensing electrodes, at least one force sensing electrode and a force and touch sensing circuit, wherein the functional circuit and the force and touch sensing circuit are powered by a first power source and a second power source different with the first power source, respectively. The force and touch sensing circuit is electrically connected with the touch sensing electrodes and the force sensing electrode to sense external touch and touching force by driving the touch sensing electrodes and the force sensing electrode. The first power source and the second power source have no common current loop therebetween during touch or force sensing operation.

    Method of enabling and disabling operating authority of handheld device

    公开(公告)号:US10474801B2

    公开(公告)日:2019-11-12

    申请号:US15485212

    申请日:2017-04-11

    Abstract: A method of enabling and disabling operating authority of handheld device is provided. The method includes following steps of: detecting whether a user is holding a handheld device; control the handheld device to enable an operating authority when detecting that the user is holding the handheld device; detecting whether the user stops holding the handheld device; control the handheld device to disable the operating authority when detecting that the user stops holding the handheld device. It may effectively manage the operating authority and simplify the operation of enabling and disabling the operating authority via enabling and disabling the operating authority automatically according to the user-holding status of the handheld device.

    RAPID IDENTIFICATION METHOD FOR FINGERPRINT
    39.
    发明申请

    公开(公告)号:US20190266380A1

    公开(公告)日:2019-08-29

    申请号:US15908784

    申请日:2018-02-28

    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.

    Fingerprint identification device
    40.
    发明授权

    公开(公告)号:US10395084B2

    公开(公告)日:2019-08-27

    申请号:US15720572

    申请日:2017-09-29

    Abstract: A fingerprint identification device includes a plurality of fingerprint sensing electrodes, a shielding enhancement electrode, a fingerprint detection circuit and an auxiliary enhancement signal circuit. The shield enhancement electrode corresponds to a plurality of the fingerprint sensing electrodes. The fingerprint detection circuit is powered by a first power supply and includes a capacitive stimulation signal source. The auxiliary enhancement signal circuit is powered by a second power supply and includes an auxiliary enhancement signal source. The fingerprint detection circuit transmits a capacitive stimulation signal to a selected fingerprint sensing electrode, and receives a fingerprint sensing signal. The fingerprint sensing signal is amplified to generate a capacitive elimination shielding signal. The capacitive elimination shielding signal is transmitted to the shielding enhancement electrode. The auxiliary enhancement signal circuit outputs an auxiliary enhancement signal to the shielding enhancement electrode for performing a fingerprint detection operation.

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