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1.发明授权公开(公告)号：US11340732B2
公开(公告)日：2022-05-24
申请号：US16587862
申请日：2019-09-30
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jin Chui Lee , San Ho Byun , Yoon Kyung Choi , Choong Hoon Lee , Bum Soo Kim , Ho Suk Na , Dong Wook Lim
Abstract: The present inventive concepts relate to a noise compensation device and method of a touch-sensing panel, and to a noise avoiding device and method. The noise compensation device of a touch-sensing device according to some example embodiments includes: a noise compensation signal generator configured to generate mutually different noise compensation signals for at least portions of first to Nth channels included in the touch-sensing panel; and a noise cancelling signal output circuit configured to generate noise-compensated reception signals based on the mutually different noise compensation signals and provide the noise-compensated reception signals to each of at least two channels among the first to Nth channels, wherein N is an integer two or greater.
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2.发明授权公开(公告)号：US09886136B2
公开(公告)日：2018-02-06
申请号：US15189647
申请日：2016-06-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jun Chul Park , Bum Soo Kim , Kyeong Gon Lee , Cha Dong Kim , San Ho Byun , Jin Chul Lee , Yoon Kyung Choi
CPC classification number: G06F3/0418 , G06F3/044
Abstract: A touch screen controller controlling a capacitive touch screen includes a first comparator that compares a reference signal with a sensing signal, and generates a first output signal. The capacitive touch screen includes capacitive touch sensors connected to a sensing line and a drive line, and that sense a touch event. The sensing signal is output from the sensing line. The touch screen controller further includes a filter that generates a second output signal by integrating the first output signal in each sensing cycle of the filter, an analog-to-digital converter that converts the second output signal to a digital signal, and a controller that determines at least one of whether a noise is generated and whether the touch event is generated based on a reference digital signal and the digital signal, and that adjusts the number of the sensing cycles of the filter based on a result of the determination.
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公开(公告)号：US10082916B2
公开(公告)日：2018-09-25
申请号：US15201532
申请日：2016-07-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Bum Soo Kim , Jun Chul Park , Hyun Kyu Ouh , Cha Dong Kim , San Ho Byun , Jin Chul Lee , Yoon Kyung Choi
CPC classification number: G06F3/044 , G06F3/0418
Abstract: A touch screen controller for cancelling an offset capacitance of a capacitive touch screen panel includes a code generator configured to generate a time-invariant digital code and a time-variant digital code during an offset cancellation time. A switched-capacitor array converts the time-invariant digital code and the time-variant digital code into an amount of electric charges corresponding to the offset capacitance.
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公开(公告)号：US11782552B2
公开(公告)日：2023-10-10
申请号：US16670367
申请日：2019-10-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yoon Kyung Choi , Jun Chul Park , Jin Bong Kim
CPC classification number: G06F3/04166 , G06F3/0446 , G06F2203/04112
Abstract: A capacitive touch panel includes a plurality of x-line channels extending in a first direction, a plurality of y-line channels extending in a second direction, different from the first direction, and processing circuitry configured to apply a first voltage to the x-line channels, apply a second voltage to the y-line channels, the first voltage and the second voltage having opposite phases to each other, and sense a contact on at least one of intersections of the plurality of x-line channels and the plurality of y-line channels.
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Patent Agency Ranking
公开(公告)号：US11048364B2
公开(公告)日：2021-06-29
申请号：US16549714
申请日：2019-08-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yong Jin Park , Min Gyu Kim , Sun Kwon Kim , Jong Bin Moon , Young Kil Choi , Yoon Kyung Choi
Abstract: A method for acquiring capacitance of a capacitive touch panel includes acquiring a selected capacitance value at a selected point among a plurality of points at which a plurality of capacitances are present, in the capacitive touch panel, determining the selected capacitance value as a reference capacitance value, and performing a multi-driving using a balanced code, and acquiring a capacitance value from at least one point among the plurality of points using the reference capacitance value.
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公开(公告)号：US09727183B2
公开(公告)日：2017-08-08
申请号：US14477198
申请日：2014-09-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： San Ho Byun , Jun Chul Park , Ki Duk Kim , Yoon Kyung Choi
CPC classification number: G06F3/044 , G06F3/0416
Abstract: A method of operating a touch screen sensor integrated circuit includes: receiving a plurality of current signals through a plurality of pins, wherein each current signal is generated according to mutual capacitance in response to a modulation signal; sensing the current signals and generating a plurality of sensed current signals corresponding to each of the current signals; and generating a plurality of subtracted current signals, wherein each subtracted current signal is generated by performing a subtraction on sensed current signals corresponding to a pair of the pins.
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公开(公告)号：US11216129B2
公开(公告)日：2022-01-04
申请号：US16738492
申请日：2020-01-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yoon Kyung Choi , Ki Up Kim , Jin Bong Kim , Sung Yong Cho
IPC: G06F3/044
Abstract: A touch sensor including a sensor array including a first touch node and a second touch node adjacent to each other in at least one of a first direction or a second direction, the second direction perpendicular to the first direction, the first touch node and the second touch node electrically separated from each other, each of the first touch node and the second touch node including a driving electrode and a sensing electrode, and a controller configured to output a first driving signal having a first phase to the driving electrode of the first touch node and output a second driving signal having a second phase opposite to the first phase of the first driving signal to the driving electrode of the second touch node may be provided. The controller may be further configured to output the first driving signal and the second driving signal simultaneously.
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公开(公告)号：US20200326815A1
公开(公告)日：2020-10-15
申请号：US16738492
申请日：2020-01-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yoon Kyung Choi , Ki Up Kim , Jin Bong Kim , Sung Yong Cho
IPC: G06F3/044
Abstract: A touch sensor including a sensor array including a first touch node and a second touch node adjacent to each other in at least one of a first direction or a second direction, the second direction perpendicular to the first direction, the first touch node and the second touch node electrically separated from each other, each of the first touch node and the second touch node including a driving electrode and a sensing electrode, and a controller configured to output a first driving signal having a first phase to the driving electrode of the first touch node and output a second driving signal having a second phase opposite to the first phase of the first driving signal to the driving electrode of the second touch node may be provided. The controller may be further configured to output the first driving signal and the second driving signal simultaneously.
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公开(公告)号：US10712869B2
公开(公告)日：2020-07-14
申请号：US15680108
申请日：2017-08-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jin Chul Lee , Choong Hoon Lee , Cha Dong Kim , Jun Chul Park , Dong Wook Lim , Yoon Kyung Choi
Abstract: A touch panel controller includes a signal driver charging a plurality of sensor lines extending in a direction with the same charge, by applying a driving signal to one sensor line of sensor lines and applying a mirrored driving signal mirrored from the driving signal to the remaining sensor lines of the sensor lines, and a sensor sensing a change in capacitance from the sensor lines, respectively.
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