Voice activity detection systems and methods
Granted: December 10, 2019
Patent Number:
10504539
An audio processing device or method includes an audio transducer operable to receive audio input and generate an audio signal based on the audio input. The audio processing device or method also includes an audio signal processor operable to extract local features from the audio signal, such as Power-Normalized Coefficients (PNCC) of the audio signal. The audio signal processor also is operable to extract global features from the audio signal, such as chroma features and harmonicity…
Semiconductor device having shifted operation voltages in different modes and electronic apparatus thereof
Granted: December 10, 2019
Patent Number:
10504478
A semiconductor device has a first mode in which the semiconductor device is used alone and a second mode in which the semiconductor device is used in combination with another semiconductor device. In case that one driven device is driven using the semiconductor device in the first mode and the second mode, power supply lines are caused to allow electrical conduction to each other outside of each semiconductor device in order to cancel errors of operation power supply voltages of each…
Display panel with reduced source lines
Granted: December 10, 2019
Patent Number:
10504463
A system and method for updating a display panel having a plurality of display lines, a plurality of gate lines and a plurality of pixels. A first pixel pair of the pixels is coupled to at least three gate lines and two source lines. A display driver is coupled to the source lines, and is configured to drive the source lines to update the pixels.
Device with improved circuit positioning
Granted: December 10, 2019
Patent Number:
10503955
Disclosed is a sensor device comprising: a two-dimensional array of sensor pixel circuits, wherein the two-dimensional array includes a first axis and second axis, and wherein the two-dimensional array includes more sensor pixel circuits along the second axis than along the first axis; a gate drive circuit disposed along on the first axis of the two-dimensional array configured to drive one or more sensor pixel circuits; and, a readout circuit disposed along on the first axis of the…
Device and method for touch sensing on display panel
Granted: December 10, 2019
Patent Number:
10503336
A semiconductor device includes an analog front end and processing circuitry. The analog front end is configured to obtain capacitance detection data depending on capacitances of a plurality of sense electrodes of a liquid crystal display panel. The processing circuitry is configured to generate touch sensing data associated with a current touch sensing frame, based on capacitance detection data associated with the current touch sensing frame and capacitance detection data associated…
Current-driven display panel and panel display device adapted to touch sensing
Granted: December 10, 2019
Patent Number:
10503335
A display panel includes a plurality of pixel circuits; and a sense line. The plurality of pixel circuits includes a touch sensing-adapted pixel circuit including a current-driven element, a drive transistor; a hold capacitor configured to hold a voltage corresponding to a data voltage and a sense capacitor. A capacitance of the sense capacitor varies in response to contact of an object with the current-driven display panel in a vicinity of the touch sensing-adapted pixel circuit. The…
Active feedforward interference cancellation techniques for sensor analog front-end
Granted: December 10, 2019
Patent Number:
10503320
Embodiments herein provide input devices that include a display panel on which a discrete capacitive sensor is disposed to form a capacitive sensing region. The capacitive sensor includes a plurality of sensor electrodes that are used to generate capacitive sensing signals indicating user interaction with the input device. Moreover, the input device includes analog interference detection circuitry for mitigating the negative impact of display noise on capacitive sensing. In one…
System and method for regulating voltages in a display device having an integrated sensing device
Granted: December 10, 2019
Patent Number:
10503311
Embodiments herein provide a voltage regulation system comprising a charge pump a voltage regulator and a current regulator. The charge pump is configured to output a current signal to a capacitor. The voltage regulator is configured to sample an output of the capacitor, and compare the sampled voltage to a target voltage to generate a control signal. The current regulator is configured to sample a portion of the output current based on the control signal and regulate the current signal…
Sensing for touch and force
Granted: December 3, 2019
Patent Number:
10496215
An input device described herein includes at least one dual purpose electrode that is used to perform both capacitive sensing to detect an input object (e.g., a finger or stylus) and force sensing to determine the force applied by the input object on the input device. During a first time period, the input device performs capacitive sensing using a first electrode of the plurality of sensor electrodes. However, during a second time period, the input device excites the first electrode and…
Systems and methods for image alignment
Granted: December 3, 2019
Patent Number:
10496863
Systems and methods for image alignment are disclosed. A method includes: determining a first set of patches for a first image and a second set of patches for a second image, wherein each patch in the first and second sets of patches comprises a portion of the first and second image, respectively; determining a set of possible match pairings of a patch from the first set and a patch from the second set; for each match pairing in the set of possible match pairings, computing a…
Multi-touch detection in moisture
Granted: November 26, 2019
Patent Number:
10489262
A method of detecting touch inputs, in the presence of moisture, in a sensing region of an input device. The input device acquires sensor information about the sensing region via a plurality of sensor electrodes configured for capacitive sensing. A first capacitive image of the sensing region is generated based on the received sensor information. The input device further determines a set of contiguous regions in the first capacitive image and selects, from the set of contiguous regions,…
Single layer capacitive sensor pattern
Granted: November 26, 2019
Patent Number:
10488994
A capacitive sensor is provided that includes an array of sensor electrodes deposed in single layer on a substrate. The array includes a number of columns of sensor electrode sets arranged in a row. Each column of the sensor electrode sets includes a plurality of transmitter electrode elements and at least one receiver electrode. The transmitter electrode elements are deposed in a staggered arrangement in a direction of the column, wherein each transmitter electrode element has a trace…
Systems and methods for image optimization and enhancement in electrophotographic copying
Granted: November 5, 2019
Patent Number:
10469708
Systems and methods for enhancing an image for printing include identifying a plurality of true edge positions in a scanned digital image, generating an edge restoration signal based on image data at the plurality of true edge positions, generating a boost value for each pixel position in the image as a function of the edge restoration signal and an unsharp masking of the image, and generating an enhanced image. A system may include a print interface, an image interface receiving a…
CDM excitation on full in-cell matrix sensor array with reduced background capacitance
Granted: November 5, 2019
Patent Number:
10466848
Embodiments described herein include a method for detecting a presence of an input in a capacitive sensing device that includes a sensing region and a plurality of sensor electrodes. The method includes driving a first column of transmitter sensor electrodes at a first potential and driving a second column of transmitter sensor electrodes at a second potential different than the first potential. The method includes acquiring a measurement from each row of sensor electrodes, where a first…
Dynamic differential algorithm for side touch signals
Granted: November 5, 2019
Patent Number:
10466839
Input devices described herein include sensing regions that permit the device to identify a location of input objects along a side of the device. To perform gesture detection, an input device selects baseline signals which are subtracted from capacitive sensing signals captured using the sensor electrodes in the sensing region. Doing so results in delta signals that represent the difference between the capacitive sensing signals and the baseline signals. In one embodiment, the baseline…
Input sensing using lower-order CDM
Granted: October 29, 2019
Patent Number:
10459581
A method for performing input sensing using an input device includes: receiving, at a sensing region of the input device, an input; obtaining, via receivers of the input device, measurements corresponding to the input, wherein obtaining the measurements comprises: separately driving multiple subsets of transmitters of the input device, and obtaining measurements corresponding to each separately-driven subset of transmitters via the receivers, wherein each separately-driven subset of…
Force sensor with uniform response in an axis
Granted: October 22, 2019
Patent Number:
10452211
An input device includes an input surface having a first axis and a second axis, and force sensor electrodes. The force sensor electrodes have a cumulative capacitive sensor response to a force on the input surface. The cumulative capacitive sensor response is, within a specified tolerance, uniform along the first axis based on the plurality of sizes of the plurality of force sensor electrodes.
Low-profile capacitive pointing stick
Granted: October 15, 2019
Patent Number:
10444862
In an example, an input device includes a substrate and an elastomeric material. The substrate includes a plurality of sensor electrodes disposed thereon. The elastomeric material is mechanically coupled to the substrate and overlaps the plurality of sensor electrodes. The elastomeric material includes an inner portion disposed such that an area of contact between the inner portion and at least some of the plurality of sensor electrodes changes in response to at least one of a lateral…
Electrode combining for noise determination
Granted: October 15, 2019
Patent Number:
10444922
Sensor electrodes are coupled, in a first configuration, to input channels of a processing system. The sensor electrodes are used to acquire a measurement of current. In a second configuration that is different from the first configuration, the sensor electrodes are coupled to the input channels. The sensor electrodes in the second configuration are used to acquire a capacitive resulting signal. Positional information is determined using the current measurement and the capacitive…
Force electrodes with non-uniform spacing
Granted: October 15, 2019
Patent Number:
10444888
An input device includes an input surface having a first axis and a second axis, and force sensor electrodes. The force sensor electrodes have non-uniform distances between adjacent force sensor electrodes along the first axis.
