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公开(公告)号：US20160124544A1
公开(公告)日：2016-05-05
申请号：US14741940
申请日：2015-06-17
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sanghyub Kang , San-ho Byun , Jinchul Lee , Chadong Kim , Bumsoo Kim , Junchul Park , Hojin Park , Hyunkyu Ouh , Kyunghoon Lee , Michael Choi , Yoonkyung Choi
IPC: G06F3/044
CPC classification number: G06F3/044 , G06F1/163 , G06F3/011 , G06F3/03547 , G06F3/0418 , G06F2203/0339 , G06F2203/04108
Abstract: A touch analog front-end (AFE) for a touch sensitive screen may include a transmitter configured to charge a touch panel and a receiver configured to sense the touch panel. The receiver may include a charge-to-voltage (C2V) converter configured to convert a change of capacitance received from the touch panel into a voltage signal, a correlated double sampling (CDS) block configured to convert the voltage signal into a differential signal and to sample each of the positive and the negative signals of the differential signal, and an integrator configured to accumulate a difference between the sampled positive and negative signals.
Abstract translation: 用于触敏屏幕的触摸模拟前端（AFE）可以包括被配置为对触摸面板和被配置为感测触摸面板的接收器充电的发射器。 接收器可以包括被配置为将从触摸面板接收的电容的变化转换为电压信号的电荷 - 电压（C2V）转换器，被配置为将电压信号转换为差分信号的相关双采样（CDS）块，以及 对差分信号的正和负信号进行采样，以及积分器，被配置为累积采样的正和负信号之间的差。
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公开(公告)号：US12124664B2
公开(公告)日：2024-10-22
申请号：US18485708
申请日：2023-10-12
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jinchul Lee , Yoonkyung Choi , Bumsoo Kim , Sanho Byun
CPC classification number: G06F3/0446 , G06F3/0412
Abstract: A touch sensor of multi-driving scheme includes a touch panel including input lines and output lines, the touch panel causes a change in mutual capacitance in response to touch. Processing circuitry generates transmission signals to the input lines as a result of an encoding operation on a first matrix having an inverse matrix, each of the transmission signals has a first polarity or a second polarity opposite in phase to the first polarity; outputs the transmission signals in an unbalanced period when the sum of phases of the transmission signals is greater than 0; receives receiving signals through the output lines; and decodes the receiving signals based on the first matrix, the receiving signals generated by the change in the mutual capacitance in response to the touch.
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3.发明授权公开(公告)号：US11960680B2
公开(公告)日：2024-04-16
申请号：US17978705
申请日：2022-11-01
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Heejin Lee , Jinbong Kim , Sanho Byun , Jinchul Lee , Yunrae Jo
CPC classification number: G06F3/04182 , G06F3/0412 , G06F3/0443 , G06F3/0446 , G06F3/04166
Abstract: A touch controller includes a noise detection circuit that respectively provides a first reference voltage and a second reference voltage for detecting display noise to a first electrode and a second electrode arranged on lines except a line on which touch sensing is performed, among sensing electrodes, the second reference voltage being different from the first reference voltage, a driving signal generation circuit that receive a first noise voltage and a second noise voltage generated based on the first reference voltage and the second reference voltage and alternately selects the first noise voltage and the second noise voltage as a driving signal, and a receiving circuit that receives the driving signal, a touch sensing signal generated based on the driving signal from a third electrode arranged on the line on which touch sensing is performed, among the sensing electrodes, and generates a sensing voltage based on the touch sensing signal.
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公开(公告)号：US09898149B2
公开(公告)日：2018-02-20
申请号：US14741940
申请日：2015-06-17
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sanghyub Kang , San-ho Byun , Jinchul Lee , Chadong Kim , Bumsoo Kim , Junchul Park , Hojin Park , Hyunkyu Ouh , Kyunghoon Lee , Michael Choi , YoonKyung Choi
IPC: G06F3/044 , G06F3/041 , G06F1/16 , G06F3/01 , G06F3/0354
CPC classification number: G06F3/044 , G06F1/163 , G06F3/011 , G06F3/03547 , G06F3/0418 , G06F2203/0339 , G06F2203/04108
Abstract: A touch analog front-end (AFE) for a touch sensitive screen may include a transmitter configured to charge a touch panel and a receiver configured to sense the touch panel. The receiver may include a charge-to-voltage (C2V) converter configured to convert a change of capacitance received from the touch panel into a voltage signal, a correlated double sampling (CDS) block configured to convert the voltage signal into a differential signal and to sample each of the positive and the negative signals of the differential signal, and an integrator configured to accumulate a difference between the sampled positive and negative signals.
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公开(公告)号：US11656715B2
公开(公告)日：2023-05-23
申请号：US17397223
申请日：2021-08-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungyong Cho , Jinchul Lee , Yunrae Jo , Bumsoo Kim , Choonghoon Lee , Yoon-Kyung Choi
IPC: G06F3/041 , G06F3/0354 , G09G3/3225 , G06F3/044
CPC classification number: G06F3/04162 , G06F3/03545 , G06F3/0412 , G06F3/04164 , G06F3/04166 , G09G3/3225 , G06F3/0446 , G09G2320/0247
Abstract: A touch sensing device may include a touch sensor array including at least one beacon driving section and at least one compensation section, the at least one beacon driving section including a plurality of first touch electrodes, and the at least one compensation section including a plurality of second touch electrodes; and a touch controller connected to the touch sensor array through at least one first driving channel and at least one second driving channel, the touch controller is configured to, during a first uplink period for communication with an active pen, provide at least one beacon signal to the at least one first driving channel, and provide at least one compensation signal to the at least one second driving channel, the at least one compensation signal being an inverse of the at least one beacon signal.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20230134287A1
公开(公告)日：2023-05-04
申请号：US17978705
申请日：2022-11-01
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Heejin Lee , Jinbong Kim , Sanho Byun , Jinchul Lee , Yunrae Jo
Abstract: A touch controller includes a noise detection circuit that respectively provides a first reference voltage and a second reference voltage for detecting display noise to a first electrode and a second electrode arranged on lines except a line on which touch sensing is performed, among sensing electrodes, the second reference voltage being different from the first reference voltage, a driving signal generation circuit that receive a first noise voltage and a second noise voltage generated based on the first reference voltage and the second reference voltage and alternately selects the first noise voltage and the second noise voltage as a driving signal, and a receiving circuit that receives the driving signal, a touch sensing signal generated based on the driving signal from a third electrode arranged on the line on which touch sensing is performed, among the sensing electrodes, and generates a sensing voltage based on the touch sensing signal.
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7.发明授权公开(公告)号：US09710118B2
公开(公告)日：2017-07-18
申请号：US14750079
申请日：2015-06-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junchul Park , Bumsoo Kim , Hyunkyu Ouh , Sang-Hyub Kang , Chadong Kim , Sanho Byun , Jinchul Lee , Yoon-Kyung Choi
CPC classification number: G06F3/044 , G06F3/0416 , G06F3/0418
Abstract: Provided are a semiconductor device and a semiconductor system, which can increase immunity against noises through tertiary correlated double sampling (CDS). The semiconductor device includes an amplifier that receives noise and a driving signal, resets for each predetermined period of the driving signal and samples the noise to generate first sampled noise. The first sampled noise includes multiple noise differences each occurring between consecutive reset points. A sampler performs second sampling and third sampling on the first sampled noise and performs fourth sampling on the second and third sampled noises. The first sampled noise includes first to third noise differences, the second sampled noise is a difference between the first and second noise differences, the third sampled noise is a difference between the second and third noise differences, and the fourth sampled noise is a difference between the second and third sampled noises.
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公开(公告)号：US12164731B2
公开(公告)日：2024-12-10
申请号：US18135376
申请日：2023-04-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chadong Kim , Bumsoo Kim , Jongmin Baek , Gyeonggon Lee , Jinchul Lee , Choonghoon Lee , Yunrae Jo , Yoonkyung Choi
IPC: G06F3/044
Abstract: A sensing device includes a touch panel including first and second sensor electrodes, and a touch panel controller acquiring a sensing signal from the touch panel and detecting a user input based on the sensing signal. The touch panel controller acquires the sensing signal from at least one of the first sensor electrodes and the second sensor electrodes in a first mode operating at a first power. The touch panel controller selects a first transmitting electrode, a second transmitting electrode, and receiving electrodes from one of the first sensor electrodes and the second sensor electrodes, inputs a first driving signal to the first transmitting electrode, and inputs a second driving signal having a phase difference of 180 degrees with respect to the first driving signal to the second transmitting electrode in a second mode operating at a second power and a third mode in which a sensing operation is performed.
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公开(公告)号：US11650702B2
公开(公告)日：2023-05-16
申请号：US17507395
申请日：2021-10-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chadong Kim , Bumsoo Kim , Jongmin Baek , Gyeonggon Lee , Jinchul Lee , Choonghoon Lee , Yunrae Jo , Yoonkyung Choi
IPC: G06F3/044
CPC classification number: G06F3/044 , G06F2203/04112
Abstract: A sensing device includes a touch panel including first and second sensor electrodes, and a touch panel controller acquiring a sensing signal from the touch panel and detecting a user input based on the sensing signal. The touch panel controller acquires the sensing signal from at least one of the first sensor electrodes and the second sensor electrodes in a first mode operating at a first power. The touch panel controller selects a first transmitting electrode, a second transmitting electrode, and receiving electrodes from one of the first sensor electrodes and the second sensor electrodes, inputs a first driving signal to the first transmitting electrode, and inputs a second driving signal having a phase difference of 180 degrees with respect to the first driving signal to the second transmitting electrode in a second mode operating at a second power and a third mode in which a sensing operation is performed.
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10.发明授权公开(公告)号：US11157116B2
公开(公告)日：2021-10-26
申请号：US16813943
申请日：2020-03-10
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chadong Kim , Bumsoo Kim , Jongmin Baek , Gyeonggon Lee , Jinchul Lee , Choonghoon Lee , Yunrae Jo , Yoonkyung Choi
IPC: G06F3/044
Abstract: A sensing device includes a touch panel including first and second sensor electrodes, and a touch panel controller acquiring a sensing signal from the touch panel and detecting a user input based on the sensing signal. The touch panel controller acquires the sensing signal from at least one of the first sensor electrodes and the second sensor electrodes in a first mode operating at a first power. The touch panel controller selects a first transmitting electrode, a second transmitting electrode, and receiving electrodes from one of the first sensor electrodes and the second sensor electrodes, inputs a first driving signal to the first transmitting electrode, and inputs a second driving signal having a phase difference of 180 degrees with respect to the first driving signal to the second transmitting electrode in a second mode operating at a second power and a third mode in which a sensing operation is performed.
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