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公开(公告)号：US20180164948A1
公开(公告)日：2018-06-14
申请号：US15378188
申请日：2016-12-14
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Leonard Liviu Dinu , Hugo Gicquel
CPC classification number: G06F3/0418 , G06F3/044
Abstract: A touch screen controller disclosed herein includes a circuit configured to generate a digital touch voltage comprises of samples, at a base sampling rate. The touch screen controller also includes a digital processing unit configured to analyze a first subset of samples of the digital touch voltage samples to determine noise content thereof, the first subset of samples corresponding to samples at a first investigated sampling rate that is a first function of the base sampling rate. The digital processing unit is also configured to analyze a second subset of samples of the digital touch voltage to determine noise content thereof, with the second subset of samples corresponding to samples at a second investigated sampling rate that is a second function of the base sampling rate, and determine a preferred sampling rate from among the first and second investigated sampling rates as a function of determined noise content thereof.
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公开(公告)号：US20180150183A1
公开(公告)日：2018-05-31
申请号：US15362434
申请日：2016-11-28
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Ade Putra , Kusuma Adi Ningrat
CPC classification number: G06F3/0418 , G06F3/044 , G06F2203/04108
Abstract: A method for touch screen self-capacitance foreign matter detection for a capacitive touch screen is disclosed. By iteratively performing methods of self-capacitance scanning and foreign matter scanning foreign matter may be detected.
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公开(公告)号：US09976914B2
公开(公告)日：2018-05-22
申请号：US14308470
申请日：2014-06-18
Inventor： Praveen Kumar Radhakrishnan , Dino Faralli
CPC classification number: B01L3/502715 , B01L3/502707 , B01L2300/0627 , B01L2300/0848 , B01L2300/12 , G01F1/6845 , G01F1/6888 , G01K7/02 , G01K7/021 , H01L35/32 , H01L35/325 , Y10T29/41
Abstract: A microfluidic-based sensor, comprising: a semiconductor body, having a first and a second side opposite to one another in a direction; a buried channel, extending within the semiconductor body; a structural layer, of dielectric or insulating material, formed over the first side of the semiconductor body at least partially suspended above the buried channel; and a first thermocouple element, including a first strip, of a first electrical conductive material, and a second strip, of a second electrical conductive material different from the first electrical conductive material, electrically coupled to the first strip. The first thermocouple element is buried in the structural layer and partially extends over the buried channel at a first location. A corresponding manufacturing method is disclosed.
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公开(公告)号：US20180121010A1
公开(公告)日：2018-05-03
申请号：US15337167
申请日：2016-10-28
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Manivannan Ponnarasu , Mythreyi Nagarajan
CPC classification number: G06F3/0416 , G06F3/044 , G06F2203/04101
Abstract: Disclosed herein is a touch screen controller that calculates a variance of an island in acquired touch data values. Where the variance exceeds a variance threshold, the island is validated as a representing touch. Where the variance does not exceed the variance threshold, whether the island represents a touch or a hover is determined by calculating a sharpness by applying weights to nodes of the island, where neighboring nodes adjacent to a peak node are weighted less than non-neighboring nodes not adjacent to the peak node. An island strength threshold is determined as a function of a product of the variance and the sharpness. It is determined that the island represents a touch where a highest touch data value of the island is greater than the island strength threshold, and a hover where the highest touch data value of the island is less than the island strength threshold.
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公开(公告)号：US09938136B2
公开(公告)日：2018-04-10
申请号：US15240709
申请日：2016-08-18
Applicant: STMicroelectronics Asia Pacific Pte Ltd , STMicroelectronics S.r.l. , STMicroelectronics, Inc.
Inventor： Teck Khim Neo , Mauro Pasetti , Franco Consiglieri , Luca Molinari , Andrea Nicola Colecchia , Simon Dodd
CPC classification number: B81B7/008 , B05B1/24 , B05B17/06 , B41J2/04501 , B41J2/04541 , B41J2/04543 , B41J2/14016 , B41J2/14072 , B81B2201/05 , B81B2207/012 , B81B2207/091
Abstract: The present disclosure is directed to a microfluidic die that includes ejection circuitry and one time programmable memory with a minimal number of contact pads to external devices. The die includes a relatively large number of nozzles and a relatively small number of contact pads. The die includes decoding circuitry that utilizes the small number of contact pads to control the drive and ejection of the nozzles and the reading/writing of the memory with the same contact pads.
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Patent Agency Ranking
公开(公告)号：US09874974B2
公开(公告)日：2018-01-23
申请号：US15093878
申请日：2016-04-08
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Rooney Kim , Lokesh Kumar Korapati
CPC classification number: G06F3/0418 , G06F3/044
Abstract: A method of compensated touch data values disclosed herein includes acquiring touch data values about a dead sensing zone of a touch screen, and determining a peak value of those touch data values. Then, a new peak value is calculated as a function of an average of the peak value and another value of the touch data value, and a sharpness value for the dead sensing zone is generated if a second highest value of the touch data values is less than the new peak value. Thereafter, compensated touch data values are generated for the dead sensing zone if the second highest value is greater than the new peak value.
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公开(公告)号：US09864468B2
公开(公告)日：2018-01-09
申请号：US15177489
申请日：2016-06-09
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Jerry Kim , Tae-gil Kang , Glen Kang , Rooney Kim
CPC classification number: G06F3/0418 , G06F3/044 , G06F2203/04104
Abstract: A method for multi-touch integrity sensing for a multi-touch capacitive touch screen is disclosed. By determining the integrity of touches, a distinction is identified between wanted touches, such as via a finger or stylus, and unwanted touches such as via foreign matter, errors, and the like.
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公开(公告)号：US20170357371A1
公开(公告)日：2017-12-14
申请号：US15177489
申请日：2016-06-09
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Jerry Kim , Tae-gil Kang , Glen Kang , Rooney Kim
CPC classification number: G06F3/0418 , G06F3/044 , G06F2203/04104
Abstract: A method for multi-touch integrity sensing for a multi-touch capacitive touch screen is disclosed. By determining the integrity of touches, a distinction is identified between wanted touches, such as via a finger or stylus, and unwanted touches such as via foreign matter, errors, and the like.
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公开(公告)号：US20170344158A1
公开(公告)日：2017-11-30
申请号：US15679771
申请日：2017-08-17
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Chee Weng Cheong , Dianbo Guo , Kien Beng Tan , Yannick Guedon
CPC classification number: G06F3/044 , G06F3/041 , G06F3/0418
Abstract: A capacitive discharge circuit includes a line having a capacitance, a switched capacitor circuit including a capacitor, a switched circuit coupled to the line, and a voltage regulator coupled between the switched capacitor circuit and the switched circuit. A controller operates the switched capacitor circuit and switched circuit to in a first phase, charge the capacitor by coupling the capacitor between a common mode and a power supply, and in a second phase, discharge the capacitor by coupling the voltage regulator in series with the capacitor between the power supply node a ground. The controller is also configured to in a third phase, charge the capacitor by coupling the capacitor between the common mode and the power supply, and in a fourth phase, share charge between the line and the capacitor by coupling the voltage regulator and the capacitor in series between the line and the ground.
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公开(公告)号：US09791985B2
公开(公告)日：2017-10-17
申请号：US14803190
申请日：2015-07-20
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Praveesh Chandran , Ravi Bhatia
CPC classification number: G06F3/044 , G06F2203/04111 , H05K1/0296 , H05K1/09
Abstract: In one implementation, a capacitive sensing structure comprises rows of first sensors electrically coupled together and columns of second sensors electrically coupled together, wherein the first sensors include: a first arm extending in a first direction and having a first plurality of finger structures extending therefrom, a second arm extending in the first direction and having a second plurality of finger structures extending therefrom, and an end portion connecting the arms, wherein the first sensors define open regions that are occupied by the second sensors. In a second implementation, a capacitive sensing structure comprises rows of first sensors and columns of second sensors, wherein each of the first sensors includes an elongated portion having finger structures extending therefrom, and wherein each of the second sensors includes a primary portion connected to secondary portions via arms, wherein the secondary portions occupy gaps defined by the finger structures of the first sensors.
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