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公开(公告)号：US10818162B2
公开(公告)日：2020-10-27
申请号：US15210661
申请日：2016-07-14
Applicant: Ultrahaptics IP Ltd
Abstract: A system providing various improved calibration techniques for haptic feedback is described. An acoustic field is defined by one or more control points in a space within which the acoustic field may exist. Each control point is assigned an amplitude value equating to a desired amplitude of the acoustic field at the control point. Because complete control of space is not possible, controlling the acoustic field at given points yields erroneous local maxima in the acoustic field levels at other related positions. In relation to mid-air haptic feedback, these can interfere in interactions with the space by creating secondary effects and ghost phenomena that can be felt outside the interaction area. The level and nature of the secondary maxima in the acoustic field is determined by how the space is controlled. By arranging the transducer elements in different ways, unwanted effects on the acoustic field can be limited and controlled.
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公开(公告)号：US10817798B2
公开(公告)日：2020-10-27
申请号：US15140301
申请日：2016-04-27
Applicant: Mogees Limited
Inventor： Bruno Zamborlin , Baptiste Caramiaux , Carmine Emanuele Cella
Abstract: A method for recognizing a gesture using a first and second devices, wherein the gesture is made on a physical object. The first device may receive an entrance signal generated by the gesture, calculate descriptors of the gesture to assess characteristics of said entrance signal, segment, based on the descriptors, said entrance signal to obtain a group of segments and calculate physical values from said entrance signal, calculate a characteristic vector of signal features for each segment using the physical values, and process the characteristic vector of signal features for each segment to learn a metric function between gestures. The second device may determine, based on the metric function between gestures and characteristics of an entrance signal received by the second device, a specific exit signal correlated to a new gesture made in contact on another physical object; and supply the specific exit signal to another device.
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公开(公告)号：US20200319737A1
公开(公告)日：2020-10-08
申请号：US16908180
申请日：2020-06-22
Applicant: Tactual Labs Co.
Inventor： Darren Leigh , Clifton Forlines , Daniel Wigdor , Steven Leonard Sanders
IPC: G06F3/046 , G06F3/0488 , G06F3/041 , G02F1/1333 , G06F3/0354 , G06F3/042 , G06F3/043 , G06F3/044 , G06F3/045 , G06F3/047 , G06F3/0481
Abstract: Methods are disclosed for dynamic assignment of possible channels in a touch sensitive device having rows and columns. In an embodiment, a method determines a first signal space in which to generate signals for use in the touch sensor. Signals are then generated in the first signal space on separate ones of the rows and a column signal is sensed on a column. The first signal space is replaced with a second signal space, and a second plurality of signals is generated for use in the touch sensor in the second frequency space. The second plurality of signals is sensed to identify a touch event in the touch sensitive device.
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公开(公告)号：US10769900B2
公开(公告)日：2020-09-08
申请号：US15684922
申请日：2017-08-23
Applicant: Google LLC
Inventor： Neil Harris
Abstract: A method of generating a set of filters determining an initial estimate of a filter to be applied to a signal associated with each transducer; defining a model of the system; calculating the vibration of the member as an output of the model of the system; calculating the output of the model by comparing the output of the model with a measured value; determining changed parameter values of parameters of the model; recalculating the error value for the output of the model by comparing the output of the model with the changed parameter values with the measured value; comparing the recalculated error value with the reference error value; setting the recalculated error value as the reference error value, setting the changed parameter values as the model parameters, and repeating the above steps, or outputting the model parameters; generating a set of new filters each using respective output model parameters.
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公开(公告)号：US10725546B2
公开(公告)日：2020-07-28
申请号：US15888185
申请日：2018-02-05
Applicant: FUJITSU COMPONENT LIMITED
Inventor： Ayumu Akabane , Fumio Takei
Abstract: A tactile presentation device includes a plate panel; a piezo-electric element attached to the panel; an actuator that drives the piezo-electric element to vibrate the piezo-electric element so that a tactile sensation is generated on the panel; a detection unit that detects an electrical signal generated at the piezo-electric element, touching of an object to the panel being detected based on the detected electrical signal.
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Patent Agency Ranking
66.发明授权公开(公告)号：US10725545B2
公开(公告)日：2020-07-28
申请号：US15749470
申请日：2018-01-04
Inventor： Xiaoliang Feng
Abstract: A tactile force feedback touch panel is provided, which comprises a plurality of detection components for detecting a touch signal and a protection layer located on a surface of the detection components. Each of the detection components includes a signal transmitting module for transmitting a detection signal and a signal receiving module for receiving the detection signal. The protection layer covers the surface of the detection components and covers a touch region. The signal transmitting module and the signal receiving module are located at at least two adjacent sides of the touch region respectively. A tactile force feedback system is also provided. After the user presses the protection layer, the detection component may detect the condition of deformation of the protection layer according to the detection signal received by the detection component to implement regular touch function and the touch control function with different tactile feeling.
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公开(公告)号：US10698554B2
公开(公告)日：2020-06-30
申请号：US15904123
申请日：2018-02-23
Applicant: Microchip Technology Incorporated
Inventor： Carl Olof Fredrik Jonsson
Abstract: In certain embodiments, a system includes first and second resistive components and a touch sensor controller. The first component is positioned on a first sense line connected to an in-cell touch sensor. The first resistive component is set to a value modifying an RC time constant of a first electrode of the touch sensor. The second resistive component is positioned on a second sense line connected to the in-cell touch sensor. The second component is set to a value modifying an RC time constant of a second electrode of the touch sensor. The value of the modified RC time constant of the first electrode is within 100% of the value of the modified RC time constant of the second electrode. The controller receives signals from the first and second sense lines, such that the first and second resistive components are between the controller and the first and second electrodes, respectively.
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公开(公告)号：US10691912B2
公开(公告)日：2020-06-23
申请号：US16057638
申请日：2018-08-07
Applicant: The Board of Trustees of the Leland Stanford Junior University , Orchid Sound Technologies LLC
Inventor： Butrus T. Khuri-Yakub , Morten Fischer Rasmussen , Gerard Touma , John N. Irwin, III
IPC: G06K9/00 , A61B5/026 , A61B5/024 , A61B5/08 , A61B5/1172 , G06F3/043 , H04M1/03 , A61B5/1455 , A61B5/00 , G06K9/22
Abstract: Aspects of this disclosure relate to a biometric sensing device that includes a sensing device and an integrated optical system for authentication. For instance, the sensing device can be an ultrasonic sensing device that can generate an image of a fingerprint and the optical system can transmit light to a finger through the ultrasonic scanning device. In some instances, the acoustic biometric sensing device can generate a liveness parameter associated with a finger based on a reflection of the light.
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公开(公告)号：US20200174595A1
公开(公告)日：2020-06-04
申请号：US16297752
申请日：2019-03-11
Applicant: Acer Incorporated
Inventor： Jui-Chieh Hsiang , Chih-Chiang Chen
IPC: G06F3/043 , G06F3/0488 , G06F3/041
Abstract: An electronic device with ultrasonic touch is provided. The electronic device includes a display device, an ultrasonic transmission device, an ultrasonic reception device, a substrate, an ultrasonic controller, and a sensing circuit. The substrate is adjacent to the ultrasonic transmission device and the ultrasonic reception device. The ultrasonic controller generates a control signal. The ultrasonic transmission device generates an ultrasonic wave in a direction toward the substrate according to the control signal, and the ultrasonic reception device simultaneously receives the ultrasonic wave according to the control signal through the substrate and generates a sensing signal corresponding to the received ultrasonic wave. The sensing circuit determines a position whether a touch occurs according to the sensing signal to generate a touch signal.
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公开(公告)号：US10671218B2
公开(公告)日：2020-06-02
申请号：US15757562
申请日：2017-09-21
Applicant: BOE Technology Group Co., Ltd.
Inventor： Yingming Liu , Xue Dong , Haisheng Wang , Xiaoliang Ding , Chun Wei Wu , Chih Jen Cheng , Yuzhen Guo , Yanling Han
Abstract: Disclosed floating touch control panel includes a substrate, a modulated light source, a read sub-circuit, an output sub-circuit, an ultrasonic wave sensing unit and a light sensing unit; the ultrasonic wave sensing unit is configured to transmit an ultrasonic wave to a touch control side, to convert an ultrasonic wave reflected back from the touch control side into an electric signal and then provide it to a first node; the light sensing unit is configured to convert a modulated light reflected from the touch control side into an electric signal and then provide it to the first node; the read sub-circuit is configured to output a touch control signal to the output sub-circuit according to a potential of the first node; the output sub-circuit is configured to be controlled by a corresponding first touch control scan line to provide a touch control read line with the received touch control signal.
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