System and method for determining user input using dual baseline modes
Granted: April 9, 2019
Patent Number:
10254873
The embodiments described herein provide devices and methods that facilitate improved performance. In one embodiment, an input device comprises a plurality of capacitive sensor electrodes and a processing system coupled to the electrodes and configured to operate the electrodes to sense in a sensing region. Specifically, the processing system is configured to determine information about input objects in the sensing region based on comparisons of preliminary values with corresponding…
Touch pad with flexible substrate
Granted: April 9, 2019
Patent Number:
10254860
A touch sensor device is provided that uses a flexible circuit substrate to provide an improved input device. Specifically, the present invention uses a touch sensor controller affixed to the flexible circuit substrate, which is coupled to a sensor component to provide a flexible, reliable and cost effective touch sensor suitable for a wide variety of applications. In one embodiment the touch sensor uses a flexible circuit substrate that provides relatively high temperature resistance.…
Device and method for digital signal transmission
Granted: April 2, 2019
Patent Number:
10250259
A system and method for digital signal reception comprise outputting first and second digital transmission signals complementary to each other. Further, a first and second output signals are outputted. The first output signal has a logical value based on a product of a logical value of the first digital transmission signal and a logical value complementary to a logical value of the second digital transmission signal is outputted. The second output signal has a logical value based on a…
Multi-resolution fingerprint sensor
Granted: April 2, 2019
Patent Number:
10248837
Multi-resolution fingerprint sensors and methods of using the same are provided. The multi-resolution fingerprint sensors each include a portion of the imaging area or region of the sensor that provides higher imaging resolution than the remaining imaging area of the sensor. The area of higher resolution is useful for anti-spoofing purposes, but because only a portion of the sensor is higher-resolution, advantageously it will not impact hardware costs nearly as much as a sensor that was…
Inflection based bending signal abstraction from a mixed signal
Granted: April 2, 2019
Patent Number:
10248270
A method for performing capacitive force sensing involves acquiring a plurality of changes of capacitance at a plurality of sensor electrodes, determining an input object location, obtaining a mixed signal representing the plurality of changes of capacitance at the input object location, wherein the mixed signal comprises a touch signal portion and a bending signal portion, identifying at least one inflection point using the mixed signal, using the at least one inflection point,…
Resolving touch and press for multiple input objects
Granted: April 2, 2019
Patent Number:
10248245
A processing system for an input device, including: sensor circuitry configured to receive resulting signals from a plurality of force sensors of the input device; and processing circuitry configured to: determine a first position of a first input object and a second position of a second input object on a surface of the input device; determine a plurality of force values based on the resulting signals; calculate a first aggregate force metric for a first region of the input region based…
Touch-display control device and personal data assistant
Granted: March 26, 2019
Patent Number:
10242640
Provided are a touch display control device and an information terminal device, which are arranged so that the noise resulting from the actions for activation and display on a display panel, and the noise caused by the actions of activation and detection on a touch sensor never affects each other, and are useful for suppressing the elicitation of the difference in brightness attributed to non-display in a display frame. The information terminal device includes: a display controller…
Display control device and display panel module
Granted: March 26, 2019
Patent Number:
10242632
A halt period is inserted between a drive period in an odd-numbered field and a drive period in an even-numbered field in interlace driving. When drive signals driving subpixels are time-divisionally supplied to the display panel in units of subpixel types, switch control signals controlling source line switches which distribute the drive signals associated with respective subpixels to the corresponding source lines are generated so that the number of switching of the source line…
Object classification under low-power scan
Granted: March 26, 2019
Patent Number:
10241614
A method may include performing a first low-power scan to detect an input object in a sensing region of an input device. The method may further include determining, using the first low-power scan, whether the input object is an object of interest. The method may further include performing a high-power scan of the sensing region when the input object is an object of interest. The method may further include performing a second low-power scan of the sensing region when the input object is…
Calculation of degree of similarity between two images
Granted: March 19, 2019
Patent Number:
10235598
An image processing apparatus includes: a first circuit which calculates values f(RPi), f(GPi) and f(BPi) by applying a function f(x) to an R grayscale value RPi, a G grayscale value GPi and a B grayscale value BPi of each pixel i of a first image; a second circuit which calculates values f(RQi), f(GQi) and f(BQi) by applying the function f(x) to an R grayscale value RQi, a G grayscale value GQi and a B grayscale value BQi of each pixel i of a second image; and a similarity calculation…
Sensing system and semiconductor device
Granted: March 19, 2019
Patent Number:
10235000
A sensing system includes: a transmitter circuitry configured to transmit drive signals to N sensors, N being a positive integer; N receiver circuitries configured to receive in parallel N sense signals generated in response to the drive signals by N sensors, N being a positive integer; N modulation circuitries configured to modulate outputs of the N receiver circuitries; a mixer circuitry configured to mix outputs of the N modulation circuitries; an A/D converter circuitry configured to…
Compound collimating system using apertures and collimators
Granted: March 12, 2019
Patent Number:
10229316
An optical sensor system having a compound aperture and collimator structure for collimating light includes: an input surface providing a sensing region for a biometric object; an aperture layer, disposed beneath the input surface; a plurality of light-blocking structures, disposed beneath the aperture layer, forming a plurality of collimators; and an image sensor, disposed beneath the plurality of light-blocking structures, wherein the image sensor is configured to detect light from the…
Finger detection with auto-baseline tracking
Granted: March 12, 2019
Patent Number:
10229304
A device and system for automatically tracking a baseline input into a biometric sensor is provided. The device and system include a processing system with an amplifier having an input terminal and an output terminal for producing an output signal based on the input signal received by the input terminal. The processing system further includes at least one signal conditioning element coupled to the input terminal of the amplifier and configured to condition a compensation signal, and the…
Determining thickness profiles for a dielectric layer within an input device
Granted: March 12, 2019
Patent Number:
10228805
An input device and related method and processing system are disclosed. The input device comprises a sensing assembly attached with a conductive reference element, the sensing assembly comprising a plurality of sensor electrodes capacitively coupled with the conductive reference element and defining a surface. The input device further comprises a switching element configured to couple the conductive reference element with a selected one of a plurality of reference voltages. A first…
Continuous time anti-alias filter for capacitive touch sensing
Granted: March 12, 2019
Patent Number:
10228797
Embodiments described herein include an input device with a plurality of capacitive sensor electrodes configured to receive a signal. The input device also includes a processing system coupled to the plurality of capacitive sensor electrodes. The processing system includes an analog front end (AFE). The AFE includes an anti-aliasing filter comprising a continuous time analog infinite impulse response (IIR) filter configured to filter out interference from the received signal at…
Shared cycle LSB generation for an array of successive approximation analog-to-digital converters
Granted: March 5, 2019
Patent Number:
10224949
An example apparatus for converting a plurality of analog signals to a plurality of digital signals includes: a plurality of successive approximation (SAR) analog-to-digital converters (ADCs) each including a first input configured to receive a respective one of the plurality of analog signals, a second input configured to receive a reference signal, and an output configured to provide a respective one of the plurality of digital signals; and a shared cycle LSB generator coupled to the…
Device and method for self-capacitance touch sensing
Granted: March 5, 2019
Patent Number:
10222916
A touch panel device includes a touch panel including sensing electrodes, a selector circuitry; a sensing circuitry configured to generate sensed signals having signal levels depending on self-capacitances of connected ones of the sensing electrodes, and a processor configured to perform touch sensing of the touch panel, based on the sensed signals. When the touch panel device is placed in a first state, the selector circuitry electrically connects first sensing electrodes to the sensing…
Power consumption optimization using interference measurements
Granted: February 26, 2019
Patent Number:
10216257
A method and related processing system and input device are disclosed for power consumption optimization using interference measurements. The method comprises applying, within a predefined first low-power operational mode, a first set of values for at least one predefined sensing parameter and corresponding to a first power consumption level; acquiring, within the first low-power operational mode, a first interference measurement using the plurality of sensor electrodes; transitioning,…
Pixel architecture and driving scheme for biometric sensing
Granted: February 26, 2019
Patent Number:
10216972
Embodiments herein describe an input device that includes a rectangular array of sensor electrodes connected to sensor modules that measure capacitive sensing signals corresponding to the electrodes. During a charge stage, the input device applies a charging voltage to neighboring sensor electrodes in the array. The input device then drives the neighboring sensor electrodes to a reference voltage and measures the amount of charge accumulated on at least one of the sensor electrodes.…
Routing for an integrated display and input sensing device
Granted: February 26, 2019
Patent Number:
10216302
Display devices with improved routing between connectors and source drivers disposed on a substrate such as glass. Various features improve different characteristics of the routings between the connectors and source drivers. For example, a t-shaped connector is provided to ensure voltage provided to the source drivers is approximately equal. Routings may be tapered (i.e., altered in width) to reduce the amount of area consumption in locations where doing so is desirable but to decrease…
