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公开(公告)号：US20220155932A1
公开(公告)日：2022-05-19
申请号：US17591058
申请日：2022-02-02
申请人： SIGMASENSE, LLC.
发明人： Patrick Troy Gray , Gerald Dale Morrison , Daniel Keith Van Ostrand , Richard Stuart Seger, JR.
IPC分类号： G06F3/0488 , G06F3/044 , G06F3/041
摘要： A touch sensor system includes touch sensors, drive-sense circuits (DSCs), memory, and a processing module. A DSC drives a first signal via a single line coupling to a touch sensor and simultaneously senses, when present, a second signal that is uniquely associated with a user. The DSC processes the first signal and/or the second signal to generate a digital signal that is representative of an electrical characteristic of the touch sensor. The processing module executes operational instructions (stored in the memory) to process the digital signal to detect interaction of the user with the touch sensor and to determine whether the interaction of the user with the touch sensor compares favorably with authorization. When not authorized, the processing module aborts execution of operation(s) associated with the interaction of the user with the touch sensor. Alternatively, when authorized, the processing module facilitates execution of the operation(s).
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公开(公告)号：US20220113836A1
公开(公告)日：2022-04-14
申请号：US17537768
申请日：2021-11-30
申请人： SIGMASENSE, LLC.
发明人： Kevin Joseph Derichs
摘要： A touch sensor device includes a first panel, a second panel, and a drive-sense circuit (DSC). The first panel that includes first electrodes arranged in a first direction and second electrodes arranged in a second direction. The second panel includes third electrodes arranged in a third direction and fourth electrodes arranged in a fourth direction. The DSC is operably coupled via a single line to a coupling of a first electrode of the first electrodes and a first electrode of the third electrodes. The DSC is configured to provide the signal, which is generated based on a reference signal, via the single line to the coupling and simultaneously to sense the signal via the single line. The DSC generates a digital signal representative of the at least one electrical characteristic associated with the first electrode of the first electrodes and/or the first electrode of the third electrodes.
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公开(公告)号：US20220083166A1
公开(公告)日：2022-03-17
申请号：US17537630
申请日：2021-11-30
申请人： SigmaSense, LLC.
发明人： Daniel Keith Van Ostrand , Gerald Dale Morrison , Richard Stuart Seger, JR. , Timothy W. Markison
摘要： A method includes a first computing device generating a signal having an oscillating component and driving the signal on a first touch sense element of the first computing device. The method continues with the first computing device detecting a touch on the first touch sense element based on the signal. While the touch is detected, the method continues by the first computing device modulating the signal with data to produce a modulated data signal. The method continues with a second computing device receiving the modulated data signal via a transmission medium and a second touch sense element of the second computing device, where the transmission medium includes at least one of a human body and a close proximity between the first and second computing devices. The method continues with by the second computing device demodulating the modulated data signal to recover the data.
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公开(公告)号：US11269458B2
公开(公告)日：2022-03-08
申请号：US17223613
申请日：2021-04-06
申请人： SigmaSense, LLC.
发明人： Daniel Keith Van Ostrand , Gerald Dale Morrison , Richard Stuart Seger, Jr. , Timothy W. Markison
IPC分类号： G06F3/042 , G09G3/3225 , G06F3/0488
摘要： A drive-sense module for a light emitting diode (LED) touch-sense panel includes an input source for providing a forward bias reference signal and a reverse bias reference signal, a first conversion circuit operably coupled to the input source and a second conversion circuit coupled to the input source and to an LED, where the second conversion circuit is configured to generate either a reverse bias for the LED or a forward bias for the LED based on a reverse bias reference signal or a forward bias reference signal. The drive-sense module includes a difference detection circuit to generate a signal representative of light detected by the LED in the first mode and a signal representative of light emitted by the LED in the second mode and a bi-directional dependent current source configured to output an error correction current to the first input of the difference detection circuit based on the output of the difference detection circuit.
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公开(公告)号：US11269436B2
公开(公告)日：2022-03-08
申请号：US17081089
申请日：2020-10-27
申请人： SIGMASENSE, LLC.
摘要： A touchscreen display includes one or more display drivers coupled to an active matrix display and one or more touch controllers coupled to one or more touch sensor conductors. The one or more display drivers are coupled to the active matrix display via active matrix conductive components. When enabled, the one or more display drivers is configured to transmit a first signal to the active matrix display in accordance with display operation. A touch sensor conductor includes one or more segments of the active matrix conductive components. When enabled, a touch controller of the one or more touch controllers is configured to transmit a second signal via the touch sensor conductor in accordance with touchscreen operation that is performed concurrently with the display operation.
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公开(公告)号：US11231793B2
公开(公告)日：2022-01-25
申请号：US17082237
申请日：2020-10-28
申请人： SIGMASENSE, LLC.
发明人： Patrick Troy Gray , Michael Gray
IPC分类号： G06F3/0354 , G06F3/041 , G06F3/0346 , G06F3/038 , G06F3/044
摘要： A pen apparatus with a pressure sensitive tip mechanism that internally generates pressure, tilt, and/or barrel rotation through the use of a multi-axis measurement scheme with simultaneous transmit, receive, and sensing driver capability operable in conjunction with a receiving system or in a relative stand-alone manner. Signaling schemes are provided for operating the pen apparatus to achieve improved function. Systems and methods are provided for operating a pen, and for operating a pen with a touch sensor system. Drive/receive circuitry and methods of driving and receiving sensor electrode signals are provided that allow digital I/O pins to be used to interface with touch sensor electrodes. This circuitry may be operated in modes to sense various combinations of signals coupled within a pen, or from outside of a pen.
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公开(公告)号：US11231735B2
公开(公告)日：2022-01-25
申请号：US17303612
申请日：2021-06-03
申请人： SigmaSense, LLC.
发明人： Richard Stuart Seger, Jr. , Daniel Keith Van Ostrand , Gerald Dale Morrison , Timothy W. Markison
摘要： A low voltage drive circuit includes a transmit digital to analog circuit that converts transmit digital data into analog outbound data by: generating a DC component; generating a first oscillation at a first frequency; generating a second oscillation at the first frequency; and outputting the first oscillation or the second oscillation on a bit-by-bit basis in accordance with the transmit digital data to produce an oscillating component, wherein the DC component is combined with the oscillating component to produce the analog outbound data, and wherein the oscillating component and the DC component are combined to produce the analog outbound data. A drive sense circuit drives an analog transmit signal onto a bus, wherein the analog outbound data is represented within the analog transmit signal as variances in loading of the bus in a first frequency range and wherein analog inbound data is represented within an analog receive signal as variances in loading of the bus in a second frequency range.
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公开(公告)号：US11221980B2
公开(公告)日：2022-01-11
申请号：US16670370
申请日：2019-10-31
申请人： SIGMASENSE, LLC.
发明人： Richard Stuart Seger, Jr. , Daniel Keith Van Ostrand , Gerald Dale Morrison , Timothy W. Markison
IPC分类号： G06F13/36
摘要： A low voltage drive circuit (LVDC) operable to convey data via a bus and includes a signal generator operable to convert transmit digital data into analog outbound data. The LVDC also includes an analog to digital output circuit operable to convert analog inbound data into received digital data. The LVDC further includes a drive circuit operable to convert the analog outbound data into an analog transmit signal and drive the analog transmit signal on to the bus, where the analog outbound data is represented within the analog transmit signal as variances in loading of the bus at a first frequency. The LVDC further includes a sense circuit operable to receive an analog receive signal from the bus and convert the analog receive signal into the analog inbound data, where the analog inbound data is represented within the analog receive signal as variances in loading of the bus at a second frequency.
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公开(公告)号：US11221709B2
公开(公告)日：2022-01-11
申请号：US17070799
申请日：2020-10-14
申请人： SigmaSense, LLC.
IPC分类号： G06F3/041 , G06F3/16 , G06F3/044 , G06F3/0354
摘要： A circuit includes a function module, a processing module, and a transceive circuit. The function module is operably coupled to detect stimulus of an electronic writing apparatus and generate functional data based on the stimulus. The processing module is operable to generate an outbound data signal from the functional data. The transceive circuit is coupled to a conductor of the electronic writing apparatus and includes a reference circuit operably coupled to, generate an identifier signal having a unique waveform characteristic that is an identifier for an aspect of the electronic writing apparatus, and combine the outbound data signal with the identifier signal to produce a transmit reference signal. The transceive circuit also includes a drive-sense circuit that is operably coupled to regulate the transmit reference signal on the conductor and generate an error correction signal based on the transmit reference signal and an inbound signal received via the conductor.
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公开(公告)号：US11215973B2
公开(公告)日：2022-01-04
申请号：US17138040
申请日：2020-12-30
申请人： SIGMASENSE, LLC.
发明人： Patrick Troy Gray , Gerald Dale Morrison , Daniel Keith Van Ostrand , Richard Stuart Seger, Jr.
IPC分类号： G05B19/418 , H04L29/08
摘要： An automated system includes transducers, at least one computing device, and at least one automated apparatus. The transducer(s) is/are driven and sensed using drive-sense circuit(s). A drives and senses drive and sense a transducer via a single line, generates a digital signal representative of a sensed analog feature to which the transducer is exposed, and transmits the digital signal to the computing device. The computing device receives digital signals from at least some of drive-sense circuits and process them in accordance with the automation process to produce an automated process command. The automated apparatus executes a portion of an automated process based on the automated process command.
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