Abstract: A convolutional neural network (CNN) method includes determining a temporary buffer layer, which is located between a first layer and a final layer of a CNN system; performing convolutional operations from the first layer to the determined temporary buffer layer of the CNN system in a first stage to generate a feature map line according to partial input data of layers before the temporary buffer layer; and performing convolutional operations from the temporary buffer layer to the final layer of the CNN system in a second stage to generate a feature map.

Abstract: An apparatus for measuring a signal is provided. The apparatus for measuring a signal may include a sensor configured to generate pixel data representing a fingerprint image of an object by detecting light scattered or reflected from the object and a processor configured to acquire the fingerprint image of the object based on the pixel data and acquire a pulse wave signal based on the fingerprint image and the pixel data.

Abstract: In some aspects, a device may detect that an object is contacting a display of the device. The device may illuminate, based at least in part on detecting that the object is contacting the display, a plurality of pixel regions of the display. The plurality of pixel regions may be illuminated sequentially. The device may obtain, using one or more photosensors, a set of data relating to light that is reflected from at least a portion of the object based at least in part on illuminating the plurality of pixel regions. The set of data may include respective data for each sequential illumination of the plurality of pixel regions. The device may generate an image of at least the portion of the object based at least in part on the set of data. Numerous other aspects are described.

Abstract: A fingerprint detection apparatus and an electronic device are provided. The fingerprint detection apparatus is applied under a display screen, the fingerprint detection apparatus includes a plurality of fingerprint detecting units distributed in an array or arranged in a staggered manner, and the fingerprint detecting unit includes: a plurality of optical sensing pixels; at least one micro lens disposed above the plurality of optical sensing pixels; and at least one light shielding layer disposed between the at least one micro lens and the plurality of optical sensing pixels, each of the at least one light shielding layer being provided with an opening corresponding to the plurality of optical sensing pixels; where oblique light signals in multiple directions are respectively transmitted to the plurality of optical sensing pixels through an opening provided in the at least one light shielding layer after being converged by the at least one micro lens.

Abstract: To resolve an issue related to the calibration of optical cameras in transducer-based mid-air haptic systems, the magnification of the motion induced on an optical camera by an acoustic field modulated at specific frequencies reveals very small temporal variations in video frames. This quantized distortion is used to compare different acoustic fields and to solve the calibration problem in an automatized manner. Further, mechanical resonators may be excited by ultrasound when it is modulated at the resonant frequency. When enough energy is transferred and when operating at the correct frequency, a user in contact with the device can feel vibration near areas of largest displacement. This effect can be exploited to create devices which can produce haptic feedback while not carrying a battery or exciter when in the presence of an ultrasonic source.

Abstract: A pen input device is provided, including a housing including a front opening and a rear opening; a pen input generator including a pen tip disposed in the front opening, the pen input generator generating a position signal and a pen pressure signal of the pen input device; a battery; a PCB; a support on which at least a part of the pen input generator, the battery, and the PCB are disposed; a conductive member electrically connecting the PCB and the battery; a buffer disposed in the rear opening; and a polymer that fills in an inner space of the housing. The support includes a support plate extended in a direction toward the rear opening from the front opening of the housing, and a first partition, a second partition, and a third partition, which protrude from the support plate and are sequentially spaced.

Abstract: An electronic apparatus, includes: a display screen, a reflector and a sensor, wherein a region of the display screen located on a front surface of the electronic apparatus is a first display region, a region of the display screen located on a back surface of the electronic apparatus is a second display region, and the display screen is configured to transmit light; the reflector and the sensor are arranged inside the electronic apparatus, and light transmitted from the first display region or the second display region is reflected by the reflector and then irradiated on the sensor; and the sensor generates an electric signal for fingerprint identification based on the light received. Sharing the sensor under the display screen can therefore be realized, with a single sensor to implement fingerprint collection and identification of a multi-surface display device.

Abstract: Control instructions are transmitted to receivers by modulating light sources to generate light beams that are modulated with digital data streams for inducing control instructions in the light beams. Each light beam is applied to a pixel shaper element of a pixel shaper assembly to produce a light pixel, each light pixel carrying the control instructions of the light beam, each light pixel having a perimeter defined by the pixel shaper element. The pixel shaper assembly combines the light pixels into an image without significant overlap or voids between the light pixels. The light pixels are directed toward a projector lens for transmission toward the receivers. In a receiver, an optical receiver detects a light pixel. A controller decodes the control instructions received in the detected light pixel and uses the control instructions to control a function of the receiver.

Abstract: 2D and 3D data of a scene are linked by associating points in the 3D data with corresponding points in multiple different 2D images within the 2D data. Labels assigned to points in either data can be propagated to the other data. Labels propagated to a point in the 3D data are aggregated, and the labels ranked highest are kept and propagated back to the 2D images. 3D data including labels produced in this manner allow partially obscured objects in certain views to be more accurately identified. Thus, an object can be manipulated in all 2D views of the 2D data in which the object is at least partially visible, in order to digitally remove, alter, or replace it.

Abstract: A fingerprint sensor includes: a first layer including a plurality of pixels; a light transmitting hole array layer including a plurality of light transmitting holes providing light transmitting paths of light rays that are incident through the first layer; and a sensor layer including a plurality of photo sensors configured to sense the light rays that pass through the light transmitting holes and are incident on the sensor layer. A resolution at which the photo sensors are disposed in first areas on the sensor layer differs from a resolution at which the photo sensors are disposed in second areas on the sensor layer.

Abstract: A method for preparing a polymer composite material is provided. The method includes steps of mixing and heat-treating a first polymer, a second polymer, and a third polymer to obtain a first mixture, adding a light-transmitting material to the first mixture to obtain a second mixture, adding a nano material to the second mixture to obtain a third mixture, performing subsequent processing on the uniformly mixed third mixture to obtain the polymer composite material. The polymer composite material is configured to replace conventional protective glass in ultrasonic fingerprint recognition technology, and to improve accuracy of fingerprint recognition.

Abstract: A method for controlling a temperature of a refrigerator provided in a vehicle is provided. A method for controlling a temperature of a refrigerator provided in a vehicle according to an embodiment of the present disclosure detects a foodstuff requiring a low temperature storage included in image information of an article using an artificial neutral network model, and when the foodstuff requiring the low temperature storage is detected, can prevent deterioration of the foodstuff while the article is transported through the vehicle by controlling a temperature of the refrigerator based on storage temperature information of the foodstuff requiring the low temperature storage. A temperature control device of a refrigerator installed in a vehicle of the present disclosure is associated with an artificial intelligence module, an unmmanned aerial vehicle (UAV) robot, an augmented reality (AR) device, a virtual reality (VR) device, and a device related to a 5G service.

Abstract: In one aspect, a headset may include at least one processor, at least two electrodes accessible to the at least one processor, an inertial measurement unit (IMU) accessible to the at least one processor, and storage accessible to the at least one processor. The storage may include instructions executable by the at least one processor to receive input from the at least two electrodes, receive input from the IMU, and normalize the input from the at least two electrodes based on the input from the IMU. The instructions may then be executable to perform eye tracking using electrooculography (EOG) based on the normalized input from the at least two electrodes.

Abstract: Methods for biometric recognition interaction are provided. One example method includes displaying a gallery application interface that displays at least one album entry that is different from a hidden albums entry, and receiving a sliding operation of a user in the gallery application interface. A start location of the sliding operation is a top of the gallery application interface and a trend of the sliding operation is from the top to a bottom of the gallery application interface. If a sliding distance of the sliding operation is greater than a first distance threshold or duration of the sliding operation is greater than a first duration threshold, collecting face information of the user. If the face information matches a face information template, displaying the hidden albums entry. Or, if the face information matches a face information template, displaying a hidden albums interface. The hidden albums interface includes hidden photos.

Abstract: A display device includes a display panel including a plurality of pixels, a gate driver configured to provide gate signals to the plurality of pixels, a data driver configured to provide data signals to the plurality of pixels, a correction data memory configured to store mura correction data, and a controller configured to control the gate driver and the data driver. The controller includes a pattern detection block configured to detect a set pattern in input image data, and a mura correction block configured to perform a mura correction operation that corrects the input image data based on the mura correction data in response to the set pattern not being detected, and to not perform the mura correction operation in accordance with the set pattern being detected.

Abstract: A head mounted display device and a power management method are provided. The head mounted display device includes a host device and a power input device. The power input device is detachably connected to a power device and an electronic device. The power input device generates a first input signal according to a supply voltage value of the power device, and generates a second input signal according to power supply information of the electronic device. The host device enters a power saving mode or performs a boot-up operation according to the first input signal and the second input signal.

Abstract: An electronic device is provided, which includes a display member including at least one piece of glass, a housing surrounding at least a portion of the display member to form a space inside the electronic device, a mounting member coupled to at least one side of the housing, a light output device disposed inside the mounting member to output light to the display member, a light refracting member refracting light emitted from the light output device, and a heat radiating member including at least a first portion disposed adjacent to the light output device and at least second portion extending to the housing to surround at least a portion of the at least one piece of glass, wherein at least a part of the heat radiating member contacts the space.

Abstract: A display module, a touch method and a terminal are disclosed. The display module includes: a signal reading mechanism; a fingerprint collection mechanism comprising a plurality of pixel circuits, the plurality of pixel circuits being divided into a plurality of groups, each group of pixel circuits being connected to the signal reading mechanism, a first switching unit being provided on a connection line of at least one group of pixel circuits and the signal reading mechanism; and a control mechanism respectively connected to the first switching unit and the signal reading mechanism respectively, wherein the control mechanism is configured to control at least one group of pixel circuits to be connected to the signal reading mechanism through the first switching unit, and to control the signal reading mechanism to read fingerprint signals collected by the at least one group of pixel circuits connected to the signal reading mechanism.

Abstract: Provided is a display device including a display panel and an input sensing unit. The input sensing unit includes at least one insulation layer, an electrode, and an auxiliary electrode. The electrode includes sensor parts including a metal and having a mesh shape and connection parts connecting adjacent sensor parts of the sensor parts to each other. The auxiliary electrode overlaps the sensor parts, is connected to the sensor parts, and includes transparent conductive oxide.

Abstract: An OLED driving power source includes a power supply board connected to main board and OLED screen, power supply board includes standby circuit, power supply circuit, first conversion module, second conversion module and switch; after powering on, standby circuit supplies mainboard and power supply circuit, power supply circuit starts first conversion module to output first voltage and second voltage to power mainboard and output HVDC to second conversion module, switch converts first voltage to first enabling voltage to supply OLED screen according to first enabling signal from mainboard; power supply circuit starts second conversion module to convert HVDC into second enabling voltage to power and light up OLED screen, first conversion module comprises bridgeless PFC circuit and auxiliary path LLC control circuit integrated into same semiconductor chip encapsulation, and omitting specific standby circuit, circuit structure is simplified, area of power supply board is reduced, and production cost is reduced.