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公开(公告)号：US11733798B2
公开(公告)日：2023-08-22
申请号：US17699728
申请日：2022-03-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Minsung Kim , Sanho Byun , Roots Huang , Yao Sheng Liang , Jungmoon Kim , Dongjo Park
CPC classification number: G06F3/04166 , G06F3/0446 , G06F2203/04107 , G06F2203/04108
Abstract: A touch sensing system is provided. The touch sensing system includes a touch panel including touch sensors arranged in a grid along row and column directions; a touch controller including at least one transmission circuit to transmit a signal to the touch sensors and at least one reception circuit to detect a signal from the touch sensors; and a switching circuit to selectively connect each of the touch sensors to the at least one transmission circuit and the at least one reception circuit in accordance with an operation mode. The switching circuit connects each of the touch sensors to the at least one reception circuit in a touch mode and connects a first portion of the touch sensors to the at least one reception circuit and a second portion of the touch sensors to the at least one transmission circuit in a proximity mode.
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公开(公告)号：US11777514B2
公开(公告)日：2023-10-03
申请号：US17696252
申请日：2022-03-16
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sanho Byun , Minsung Kim , Jungmoon Kim
Abstract: A touch processing circuit includes: a front-end circuit including an amplifier, a first capacitor, a second capacitor, a third capacitor, and a plurality of switches each having two ends that are selectively connected each other, the front-end circuit being configured to process an input signal varying according to a touch; and a controller controlling the plurality of switches so that the front-end circuit is configured as a first circuit that accumulates deviation of the input signal between a first phase and a second phase during an integration period and a second circuit that converts the accumulated deviation into a digital signal during a conversion period.
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公开(公告)号：US11296719B2
公开(公告)日：2022-04-05
申请号：US16738077
申请日：2020-01-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sanho Byun , Minsung Kim , Jungmoon Kim
Abstract: A touch processing circuit includes: a front-end circuit including an amplifier, a first capacitor, a second capacitor, a third capacitor, and a plurality of switches each having two ends that are selectively connected each other, the front-end circuit being configured to process an input signal varying according to a touch; and a controller controlling the plurality of switches so that the front-end circuit is configured as a first circuit that accumulates deviation of the input signal between a first phase and a second phase during an integration period and a second circuit that converts the accumulated deviation into a digital signal during a conversion period.
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4.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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5.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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Patent Agency Ranking
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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7.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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8.发明申请公开(公告)号：US20200373936A1
公开(公告)日：2020-11-26
申请号：US16738077
申请日：2020-01-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sanho Byun , Minsung Kim , Jungmoon Kim
Abstract: A touch processing circuit includes: a front-end circuit including an amplifier, a first capacitor, a second capacitor, a third capacitor, and a plurality of switches each having two ends that are selectively connected each other, the front-end circuit being configured to process an input signal varying according to a touch; and a controller controlling the plurality of switches so that the front-end circuit is configured as a first circuit that accumulates deviation of the input signal between a first phase and a second phase during an integration period and a second circuit that converts the accumulated deviation into a digital signal during a conversion period.
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公开(公告)号：US11822753B2
公开(公告)日：2023-11-21
申请号：US17306317
申请日：2021-05-03
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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公开(公告)号：US11307708B2
公开(公告)日：2022-04-19
申请号：US16822685
申请日：2020-03-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Minsung Kim , Sanho Byun , Roots Huang , Yao Sheng Liang , Jungmoon Kim , Dongjo Park
Abstract: A touch sensing system is provided. The touch sensing system includes a touch panel including touch sensors arranged in a grid along row and column directions; a touch controller including at least one transmission circuit to transmit a signal to the touch sensors and at least one reception circuit to detect a signal from the touch sensors; and a switching circuit to selectively connect each of the touch sensors to the at least one transmission circuit and the at least one reception circuit in accordance with an operation mode. The switching circuit connects each of the touch sensors to the at least one reception circuit in a touch mode and connects a first portion of the touch sensors to the at least one reception circuit and a second portion of the touch sensors to the at least one transmission circuit in a proximity mode.
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