METHOD OF GENERATING FINGERPRINT IMAGE AND FINGERPRINT SENSOR

    公开(公告)号:US20220114830A1

    公开(公告)日:2022-04-14

    申请号:US17561202

    申请日:2021-12-23

    Abstract: A method of generating a finger image includes determining a quantity of electric charge to be removed from each of a plurality of detection circuits connected to a fingerprint sensor, based on an amplifier characteristic of each of the plurality of detection circuits; obtaining a second electrical quantity by removing the quantity of electric charge from a first electrical quantity that is input to each of the plurality of detection circuits; integrating the second electrical quantity to obtain an integrated value; and generating the fingerprint image based on comparison between the integrated value of the second electrical quantity and a predetermined threshold value.

    Fingerprint/touch sensor and electronic apparatus including the same

    公开(公告)号:US10788922B2

    公开(公告)日:2020-09-29

    申请号:US16046160

    申请日:2018-07-26

    Abstract: Provided are fingerprint/touch sensors and electronic devices including the same. A fingerprint/touch sensor includes: a touch pad; a touch sensing element including a plurality of first touch sensing lines extending in a row direction and a plurality of second touch sensing lines extending in a column direction, different from the row direction, and intersecting the first touch sensing lines, the touch sensing element forming a touch region on the touch pad; a fingerprint sensing element including a plurality of first fingerprint sensing lines extending in the row direction and a plurality of second fingerprint sensing lines extending in the column direction and intersecting the first fingerprint sensing lines, the fingerprint sensing element forming a fingerprint sensing region on the touch pad; a routing unit configured to route signals generated from the touch sensing element and the fingerprint sensing element; and an integrated circuit configured to sense a touch or a fingerprint by processing the signals transmitted from the routing unit.

    Integrator circuit device and operating method thereof

    公开(公告)号:US10572058B2

    公开(公告)日:2020-02-25

    申请号:US15472971

    申请日:2017-03-29

    Abstract: An integrator circuit device for integrating an input signal includes an integrator configured to perform integration on an input signal in a positive direction or a negative direction to generate an output voltage, and a switching controller configured to control a switch so that the integrator performs the integration on the input signal in the positive direction or the negative direction. The integrator circuit device further includes a counter configured to count a number of times an integration direction of the integrator is changed, and a controller configured to determine a final output voltage, based on the counted number of times the integration direction is changed and the output voltage.

    INTEGRATED CIRCUIT, AND METHOD AND SYSTEM FOR PROVIDING POWER TO INTEGRATED CIRCUIT

    公开(公告)号:US20190033904A1

    公开(公告)日:2019-01-31

    申请号:US15869605

    申请日:2018-01-12

    CPC classification number: G05F3/08 H03K19/0019

    Abstract: An integrated circuit includes a highest class core circuit that has a positive power supply terminal connected to a positive power supply terminal of an external power source, and is configured to receive a first supply voltage which is at least a portion of a an input supply voltage that is provided from the external power source based on an operation throughput; and a lowest class core circuit that has a positive power supply terminal connected to a negative power supply terminal of an adjacent upper class core circuit, has a negative power supply terminal connected to a negative power supply terminal of the external power source, and is configured to receive a second supply voltage which is at least a portion of a part of the input supply voltage that excludes the first supply voltage.

    Method of generating fingerprint image and fingerprint sensor

    公开(公告)号:US11625942B2

    公开(公告)日:2023-04-11

    申请号:US17561202

    申请日:2021-12-23

    Abstract: A method of generating a finger image includes determining a quantity of electric charge to be removed from each of a plurality of detection circuits connected to a fingerprint sensor, based on an amplifier characteristic of each of the plurality of detection circuits; obtaining a second electrical quantity by removing the quantity of electric charge from a first electrical quantity that is input to each of the plurality of detection circuits; integrating the second electrical quantity to obtain an integrated value; and generating the fingerprint image based on comparison between the integrated value of the second electrical quantity and a predetermined threshold value.

    Method of generating fingerprint image and fingerprint sensor

    公开(公告)号:US11227136B2

    公开(公告)日:2022-01-18

    申请号:US16880435

    申请日:2020-05-21

    Abstract: A method of generating a finger image includes determining a quantity of electric charge to be removed from each of a plurality of detection circuits connected to a fingerprint sensor, based on an amplifier characteristic of each of the plurality of detection circuits; obtaining a second electrical quantity by removing the quantity of electric charge from a first electrical quantity that is input to each of the plurality of detection circuits; integrating the second electrical quantity to obtain an integrated value; and generating the fingerprint image based on comparison between the integrated value of the second electrical quantity and a predetermined threshold value.

    FINGERPRINT RECOGNIZABLE TOUCH SENSOR AND DISPLAY DEVICE INCLUDING THE FINGERPRINT RECOGNIZABLE TOUCH SENSOR

    公开(公告)号:US20210240302A1

    公开(公告)日:2021-08-05

    申请号:US16984685

    申请日:2020-08-04

    Abstract: A touch sensor may include: a touch panel including a plurality of electrodes and a plurality of electrode pads respectively connected to the plurality of electrodes; a bonding layer disposed on and in contact with the plurality of electrode pads; and a printed circuit board including: an insulating layer including a first surface adjacent to the bonding layer and a second surface facing the first surface; a plurality of first bonding pads provided in a first region of the first surface of the insulating layer; a plurality of second bonding pads disposed on the second surface of the insulating layer; and a plurality of extension pads disposed on a second region different from the first region of the first surface of the insulating layer and respectively connected to the plurality of second bonding pads.

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