Abstract: Reducing blinking pixels in a display includes detecting a first timing of activation of one or more emissive elements of the display, detecting a second timing of sensing pulses from a sensor arranged to detect radiation transmitted through the display, determining, based on the first timing and the second timing, a synchronized timing that staggers the activation of the one or more emissive elements of the display and the sensing pulses from the sensor, and dynamically altering, based on the determined synchronized timing, a subsequent timing of the sensing pulses from the sensor to reduce blinking of at least some of the pixels compared to blinking associated with the synchronized timing.

Abstract: An LED lighting device includes a seat, an optical assembly and a light source. The seat has a baseplate and a sidewall. A chamber is formed between the baseplate and the sidewall. The optical assembly completely covers a light-emitting side of the LED lighting device. The light source is disposed in the chamber of the seat and includes multiple LED arrays. Each LED array includes an LED chip. The optical assembly includes an optical unit. The optical unit includes multiple first optical members and multiple second optical members corresponding to the first optical members. The LED arrays correspond to the first optical members. Each first optical member possesses an effect of light diffusion resulting from its own material property. Each second optical member includes one or more sets of optical walls. Each set of optical walls surrounds one of the first optical members.

Abstract: The present invention relates to a method for screening mobile terminal visual attention abnormalities in children based on multimodal data learning. A calibration video and a testing video are set up, and a head-face video of children while watching the calibration video and the testing video on smartphones is recorded, respectively. An eye-tracking estimation model is constructed to predict the fixation point location from the head-face video corresponding to the testing video frame by frame and to extract the eye-tracking features. Facial expression features and head posture features are extracted. A Long Short-Term Memory (LSTM) network is used to fuse different modal features and realize the mapping from multimodal features to category labels. In the testing stage, the head-face video of children to be classified while watching the videos on smartphones is recorded, and the features are extracted and input into the post-training model to determine whether they are abnormal.

Abstract: An eye tracking system with in-optical-assembly plane illumination is described. Side-emitting light emitting diodes (LEDs) aligned with a plane of an optical assembly of a near-eye display device are used to illuminate the eye of a user and generate glints that can be detected by an eye tracking camera. When a corrective optical lens or similar element is included in the optical assembly that may distort illumination beams from the light emitting diodes (LEDs), the distortion is mitigated by using in-package or externally modified LEDs that provide angled beams. In addition to in-package level mitigations such as reflectors or labels, edge portions of the distorting optical elements may be shaped or complemented with refractive elements to redirect the beams toward the eye.

Abstract: A method and apparatus for planning a route, and a readable storage medium are provided. An implementation of the method includes: in a process of that an autonomous vehicle travels according to a first travelling route, in response to a situation where changing from a current lane to a target lane at a vehicle lane-changing permitted road section is planned for the autonomous vehicle but the autonomous vehicle is unable to change to the target lane, determining for the autonomous vehicle a permitted travel direction at a target intersection, the target intersection being a road intersection in front of the autonomous vehicle and corresponding to the vehicle lane-changing permitted road section, and the first travelling route being a travelling route pre-planned for a target starting point and a target ending point; and planning, based on the permitted travel direction, a second travelling route for the autonomous vehicle to pass through the target intersection to reach the target ending point.

Abstract: The present disclosure designs a mixed refrigerant hydrogen liquefaction device including a normal-pressure precooling cold box, a vacuum cryogenic cold box, a hydrogen refrigeration cycle compressor unit, a nitrogen cycle refrigeration unit and a mixed refrigerant cycle refrigeration unit. The precooling section uses a mixed refrigerant process and a nitrogen cycle refrigeration process as the main sources of cold energy. The refrigerant refrigeration cycle is the main source of cold energy in the temperature range of 303K to 113K. The liquid nitrogen refrigeration cycle is the main source of cold energy in the temperature range of 130K to 80K. The hydrogen refrigeration cycle provides cold energy for the temperature range of 80K to 20K. Most of the BOG generated in a storage part is recovered by an ejector. A plate-fin heat exchanger is filled with ortho-para hydrogen conversion catalysts to realize the para hydrogen content of liquefied hydrogen ?98%.

Abstract: An acoustic resonator device is formed that reduces a thermal coefficient of expansion mismatch between a piezoelectric plate and a silicon substrate by bonding the front surface of the silicon substrate having a filled and planarized sacrificial tub to a piezoelectric substrate and thinning the silicon substrate by removing material from a back surface. That back surface is then bonded to a handle wafer having a thermal coefficient of expansion (TCE) closer to a TCE of the piezoelectric substrate than a TCE of the silicon substrate and thinning the piezoelectric substrate to a target piezoelectric membrane thickness to form a piezoelectric plate. A conductor pattern is formed on the thinned piezoelectric plate and the sacrificial tub is removed to form a cavity and release a membrane of the piezoelectric plate using an etchant introduced through holes in the piezoelectric plate.

Abstract: An acoustic resonator device is formed that reduces a thermal coefficient of expansion mismatch between a piezoelectric plate and a silicon substrate by bonding the front surface of the silicon substrate having a filled and planarized sacrificial tub to a piezoelectric substrate and thinning the silicon substrate by removing material from a back surface. That back surface is then bonded to a handle wafer having a thermal coefficient of expansion (TCE) closer to a TCE of the piezoelectric substrate than a TCE of the silicon substrate and thinning the piezoelectric substrate to a target piezoelectric membrane thickness to form a piezoelectric plate. A conductor pattern is formed on the thinned piezoelectric plate and the sacrificial tub is removed to form a cavity and release a membrane of the piezoelectric plate using an etchant introduced through holes in the piezoelectric plate.

Abstract: An acoustic resonator has a piezoelectric plate attached to the surface of the substrate except for a portion of the piezoelectric plate forming a diaphragm spanning a cavity in the substrate. An interdigital transducer (IDT) formed on the plate has interleaved fingers on the diaphragm with first parallel fingers extending from a first busbar and second parallel fingers extending from a second busbar of the IDT. The first and second busbars of the IDT terminate in beveled corners that extend off of the diaphragm as side edges of the busbars that form angles with a perimeter of the cavity.

Abstract: A decision method, device, equipment in a lane changing process and storage medium are provided. The method includes: acquiring a first planned track of a driverless vehicle for travelling to a first lane and a second planned track of the driverless vehicle for travelling to a second lane within a preset time period, in a lane changing process of the driverless vehicle; predicting a predicted track of at least one obstacle within the preset time period according to a travelling state of the obstacle, wherein the obstacle is in a preset range around the driverless vehicle; and determining a travelling motion of the driverless vehicle according to the first planned track, the second planned track and the predicted track of the obstacle.

Abstract: A lane changing method, device for a driverless vehicle and a computer-readable storage medium are provided. The lane changing method includes: determining candidate lanes, to which a lane changing is to be performed, based on a travelling intention of a main vehicle; screening the candidate lanes based on lane changing conditions of the candidate lanes; selecting, from the screened candidate lanes, a target lane, to which the lane changing of the main vehicle is to be performed; determining whether the lane changing of the main vehicle from a current lane to the target lane is safe; and performing the lane changing, if the lane changing is determined to be safe.

Abstract: Acoustic filters, resonators and methods are disclosed. An acoustic filter device includes a substrate having a surface and a single-crystal piezoelectric plate having front and back surfaces, the back surface attached to the surface of the substrate except for a portion of the piezoelectric plate forming a diaphragm that spans a cavity in the substrate. An interdigital transducer is formed on the front surface of the piezoelectric plate with interleaved fingers of the IDT disposed on the diaphragm. At least a portion of a perimeter of the cavity is curved and at least one end zone of the perimeter of the cavity is round.

Abstract: A lane changing method, device for a driverless vehicle and a computer-readable storage medium are provided. The lane changing method includes: determining candidate lanes, to which a lane changing is to be performed, based on a travelling intention of a main vehicle; screening the candidate lanes based on lane changing conditions of the candidate lanes; selecting, from the screened candidate lanes, a target lane, to which the lane changing of the main vehicle is to be performed; determining whether the lane changing of the main vehicle from a current lane to the target lane is safe; and performing the lane changing, if the lane changing is determined to be safe.

Abstract: An adapter connector has two ends to be mated with a first mating connector and a second mating connector respectively. The adapter connector includes an insulating body and multiple terminals. The insulating body has a first mating section and a second mating section. The first mating section is concavely provided with multiple terminal slots. The second mating section is concavely provided with an insertion space communicated with the terminal slots. The first mating section is mated with the first mating connector. The insertion space accommodates the second mating connector. Each terminal has an elastic contact portion at one end thereof and a flat plate contact portion at the other end thereof. The elastic contact portion is accommodated in a corresponding terminal slot and electrically connected with the first mating connector. The flat plate contact portion is accommodated in the insertion space to be electrically connected with the second mating connector.

Abstract: A decision method, device, equipment in a lane changing process and storage medium are provided. The method includes: acquiring a first planned track of a driverless vehicle for travelling to a first lane and a second planned track of the driverless vehicle for travelling to a second lane within a preset time period, in a lane changing process of the driverless vehicle; predicting a predicted track of at least one obstacle within the preset time period according to a travelling state of the obstacle, wherein the obstacle is in a preset range around the driverless vehicle; and determining a travelling motion of the driverless vehicle according to the first planned track, the second planned track and the predicted track of the obstacle.

Abstract: An adapter connector has two ends to be mated with a first mating connector and a second mating connector respectively. The adapter connector includes an insulating body and multiple terminals. The insulating body has a first mating section and a second mating section. The first mating section is concavely provided with multiple terminal slots. The second mating section is concavely provided with an insertion space communicated with the terminal slots. The first mating section is mated with the first mating connector. The insertion space accommodates the second mating connector. Each terminal has an elastic contact portion at one end thereof and a flat plate contact portion at the other end thereof. The elastic contact portion is accommodated in a corresponding terminal slot and electrically connected with the first mating connector. The flat plate contact portion is accommodated in the insertion space to be electrically connected with the second mating connector.

Abstract: An electrical connector includes an insulative housing, a lower mating contact module, and an upper mating contact module. The insulative housing has a lower receiving cavity, an upper receiving cavity, and an intermediate wall located therebetween. The lower mating contact module has a lower insulating carrier and a set of lower mating contacts secured to the lower insulating carrier. The upper mating contact module has an upper insulating carrier and a set of upper mating contacts secured to the upper insulating carrier. The intermediate wall defines a lower passageway extending along a front-to-back direction and an upper passageway disposed above the lower passageway. The lower insulating carrier has a lower fixing arm inserted and fixed in the lower passageway, and the upper insulating carrier has an upper fixing arm inserted and fixing in the upper passageway.

Abstract: A modular jack includes an insulative housing, a set of central shields, and a set of insert modules. The modular jack defines a mounting port. Each insert module includes a printed circuit broad assembly (PCBA) disposed horizontally in the mounting port and a terminal module located below the PCBA. The terminal module has a set of first terminals, a set of second terminals, and an insulative carrier holding the first and second terminals. Each central shield is disposed between two adjacent insert modules and mounted to the insulative housing. The central shield has a metal wafer and an insulative body for holding the metal wafer. The insulative body includes a pressing face extending along a front-to-back direction and the insulative carrier has a receiving pressure face extending along the front-to-back direction. Each terminal has a mounting portion for electrically and mechanically engaged with an exterior PCB.

Abstract: An electrical connector (100) includes a mating port (15) for insertion of a plug connector, a first indicating assembly (5) for indicating a communication status of the mating port, and a second indicating assembly (6) for indicating another communication status of the mating port. The first indicating assembly includes a first light pipe (51) extending along the front-to-back direction and a first light emitting diode (52) extending along a top-to-bottom direction. The first LED has a number of first pins for mounting onto an exterior substrate and a first light emitting portion (521). The first light emitting portion has a number of first surrounding walls (5211) over molded with a first opaque layer (71).

Abstract: An electrical connector comprises a connector body. The connector body includes an insulative housing and a contact module received in the insulative housing. The contact module includes a spacer and a plurality of contacts received in the spacer. Each of the contacts have a foot portion for being mounted onto an external printed circuit board. The insulative housing has a plurality of mating ports defined in a vertical front face. The electrical connector also includes a connector standoff assembled under the connector body to support the connector body. The connector standoff includes a base portion and four locking arms extending from the base portion along a down-to-up direction, and two of the locking arms engage with the spacer. The foot portion extends downwardly through the connector standoff.