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公开(公告)号：US20210219053A1
公开(公告)日：2021-07-15
申请号：US16740297
申请日：2020-01-10
Applicant: SYNAPTICS INCORPORATED
Inventor： Alireza Masnadi-Shirazi , Francesco Nesta
Abstract: Embodiments described herein provide a combined multi-source time difference of arrival (TDOA) tracking and voice activity detection (VAD) mechanism that is applicable for generic array geometries, e.g., a microphone array that lies on a plane. The combined multi-source TDOA tracking and VAD mechanism scans the azimuth and elevation angles of the microphone array in microphone pairs, based on which a planar locus of physically admissible TDOAs can be formed in the multi-dimensional TDOA space of multiple microphone pairs. In this way, the multi-dimensional TDOA tracking reduces the number of calculations that was usually involved in traditional TDOA by performing the TDOA search for each dimension separately.
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公开(公告)号：US20210184638A1
公开(公告)日：2021-06-17
申请号：US17118411
申请日：2020-12-10
Applicant: SYNAPTICS INCORPORATED
Inventor： Dan SHEN , Lorenzo CRESPI
IPC: H03F3/217 , G10K11/178 , H04R3/00
Abstract: Systems and methods include a digital control module that receives and processes audio data for output through a loudspeaker. An analog block receives the audio data and the power control signal and amplifies the audio data for output. A first processing path includes a buffer to delay the audio data, a first component to combine the buffered audio data and anti-noise. A second processing path includes an absolute value block to receive the audio data and an envelope detector to receive the absolute value data and generate a maximum value for the envelope. An anti-noise path includes an absolute value block configured to determine an anti-noise absolute value which is combined with the absolute value anti-noise data. A power generator receives the output from the envelope detector and updates a power level to approximate a minimum powered needed to process the audio signal.
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公开(公告)号：US11030989B2
公开(公告)日：2021-06-08
申请号：US15853645
申请日：2017-12-22
Applicant: SYNAPTICS INCORPORATED
IPC: G10K11/178 , H04R1/10
Abstract: An active noise cancellation system includes a sensor operable to sense environmental noise and generate a corresponding reference signal, a fixed noise cancellation filter including a predetermined model of the active noise cancellation system operable to generate an anti-noise signal, and a tunable noise cancellation filter operable to modify the anti-noise signal in accordance with stored coefficients, wherein the tunable noise cancellation filter is further operable to modify the stored coefficients in real-time based on user feedback and generate a tuned anti-noise signal that models tunable deviations from the predetermined noise model. A graphical user interface is operable to receive user adjustments of tunable parameters in real-time, the tunable parameters corresponding to at least one of the stored coefficients.
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公开(公告)号：US11029780B1
公开(公告)日：2021-06-08
申请号：US16938775
申请日：2020-07-24
Applicant: SYNAPTICS INCORPORATED
Inventor： Katayoun Goudarzi , Tracy Scott Dattalo
Abstract: A method and apparatus for dynamically rescanning an array of sensor electrodes of an input device. The input device performs a first scan of the array over a plurality of iterations to acquire a frame of sensor data, where a different subframe of the sensor data is acquired from each iteration of the first scan. During each iteration of the first scan, the input device compares the subframe of sensor data acquired from the iteration with a respective subframe of sensor data acquired prior to the iteration. In some implementations, the input device may selectively repeat one or more iterations of the first scan based on the comparison.
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公开(公告)号：US11029349B2
公开(公告)日：2021-06-08
申请号：US16898266
申请日：2020-06-10
Applicant: Synaptics Incorporated
Inventor： Robert J. Bolender
Abstract: An input device is disclosed that provides reduced electromagnetic emissions while detecting the presence of an input object. In one embodiment, a first set of sensor electrodes is driven with a first modulated signal while a second set of sensor electrodes is driven with a second set of modulated signals that is based on an inverted first modulated signal. The first set of sensor electrodes may determine a capacitance value while the second set of sensor electrodes may reduce electromagnetic emissions associated with the first set of sensor electrodes.
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Patent Agency Ranking
公开(公告)号：US11010589B1
公开(公告)日：2021-05-18
申请号：US16357306
申请日：2019-03-18
Applicant: Synaptics Incorporated
Inventor： Anthony P. Russo , Erik Jonathon Thompson
IPC: G06K9/00
Abstract: An input device includes a biometric sensor and a processing system. The biometric sensor is configured to capture images of a sensing region of the input device. The processing system is configured to acquire a first image of the sensing region in response to a first authentication trigger, and to acquire a second image of the sensing region in response to a second authentication trigger. The processing system is further configured to determine an amount of similarity between the first image and the second image, and to validate the second image for user authentication when the amount of similarity between the first image and the second image is below a threshold level.
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公开(公告)号：US11010585B2
公开(公告)日：2021-05-18
申请号：US16456196
申请日：2019-06-28
Applicant: Synaptics Incorporated
Inventor： Bjoren Davis , Adam L. Schwartz , Alvin Jee
Abstract: Systems and methods for optical imaging are disclosed. An optical sensing system, including a display, an optical sensor, and a processor communicatively coupled to the display and the optical sensor is provided. The processor is configured to execute an input object image capture method. The method determines that an input object is proximate to an optical sensing region of the display, and in response to determining that an input object is proximate to the sensing region of the display, the optical sensing system illuminates the sensing region with an illumination sequence. The illumination sequence includes a cue mark sequence preceding an illumination pattern, where the cue mark sequence contains information about the illumination pattern.
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公开(公告)号：US11010006B2
公开(公告)日：2021-05-18
申请号：US16943754
申请日：2020-07-30
Applicant: Synaptics Incorporated
Inventor： David Hoch , John Weinerth
Abstract: The invention relates to a processing system. The processing system includes a sensor module performing a first measurement to obtain a combination signal using a first sensor electrode and a second sensor electrode. The first electrode is driven using a first modulated signal with a first driving voltage amplitude and simultaneously the second electrode is driven using a second modulated signal with a second driving voltage amplitude greater than the first driving voltage amplitude, while simultaneously first and second resulting signals are received from the first and second electrodes, respectively. The sensor module is further performs a second measurement to obtain a transcapacitance signal using the first and second sensor electrodes. The processing system also includes a determination module that generates the combination signal by combining the first and second resulting signals, and computes an absolute capacitance signal from the combination signal, the transcapacitance signal, and a background capacitance.
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公开(公告)号：US10921855B1
公开(公告)日：2021-02-16
申请号：US16554826
申请日：2019-08-29
Applicant: SYNAPTICS INCORPORATED
Inventor： Shengmin Wen , Qing Xiao , Jason Goodelle , Joseph Kurth Reynolds
IPC: G06F1/16 , G09G3/3275 , G09G3/36 , H01L25/16 , G02F1/1333
Abstract: A semiconductor assembly for a display device comprises a display driver integrated circuit (DDIC) chip and an interposer coupled to the DDIC chip. The DDIC chip comprises a plurality of output pads and a plurality of input pads. Further, the DDIC chip is configured to drive a plurality of data lines of the display device to update an active region of the display device. The interposer comprises a plurality of output pads coupled to the plurality of output pads of the DDIC chip and is configured to be coupled to the plurality of data lines of the display device. The interposer further comprises a plurality of input pads coupled to the plurality of input pads of the DDIC chip pads. Further, a width of the interposer is at least as large as a distance between outermost data lines of the plurality of data lines.
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公开(公告)号：US10848131B1
公开(公告)日：2020-11-24
申请号：US16425813
申请日：2019-05-29
Applicant: SYNAPTICS INCORPORATED
Inventor： Jacky Li , Jens Kristian Poulsen , Hari Hariharan
Abstract: Systems and methods for low power lattice wave filters include an input operable to receive a digital input signal having a first sample rate, a first processing branch including a first delay element operable to receive the digital input signal and output a delayed digital input signal, a second processing branch including a first adder operable to receive the digital input signal and subtract a delayed feedback signal to produce a difference signal, a second adder operable to combine the delayed digital input signal and the difference signal to produce an output signal, and wherein the second processing branch further includes a feedback path including a second delay element operable to receive the output signal and output the delayed feedback signal. In a multistage topology, a register is disposed between each stage and clocked to reduce ripple power.
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