Abstract: In some embodiments, a piezoelectric device is provided. The piezoelectric device includes a semiconductor substrate. A first electrode is disposed over the semiconductor substrate. A piezoelectric structure is disposed on the first electrode. A second electrode is disposed on the piezoelectric structure. A heating element is disposed over the semiconductor substrate. The heating element is configured to heat the piezoelectric structure to a recovery temperature for a period of time, where heating the piezoelectric structure to the recovery temperature for the period of time improves a degraded electrical property of the piezoelectric device.

Abstract: Disclosed are a gait analysis method, a gait analysis device, and a computer-readable storage medium. The method includes: obtaining consecutive N motion data; determining a plurality of probability distributions based on the N motion data, wherein the probability distributions respectively corresponds to a plurality of gait events; and determining an event time point of each gait event belonging to a specific step according to the plurality of probability distributions.

Abstract: A semiconductor structure and a method for fabricating the same are provided. The semiconductor structure includes a first chip, a second chip and a conductive structure. The first chip has an active side and an opposite side disposed opposite to each other. The second chip includes a chip bonding portion and an outer pad, and the outer pad is located outside the chip bonding portion. The first chip is disposed on the chip bonding portion of the second chip with the active side. The conductive structure is disposed on the outer pad, and the conductive structure includes a stack of a plurality of metal balls. The stack extends from the outer pad beyond the opposite side of the first chip.

Abstract: A cabin monitoring and situation understanding perceiving method is proposed. A cabin interior image capturing step is performed to capture a cabin interior image. A generative adversarial network model creating step is performed to create a generative adversarial network model according to the cabin interior image. An image adjusting step is performed to adjust the cabin interior image to generate an approximate image. A cabin interior monitoring step is performed to process the approximate image to generate a facial recognizing result and a human pose estimating result. A cabin exterior image and voice capturing step is performed to capture a cabin exterior image and a voice information. A situation understanding perceiving step is performed to process at least one of the approximate image, the cabin exterior image and the voice information according to a situation understanding model to perceive a situation understanding result.

Abstract: In some embodiments, a piezoelectric device is provided. The piezoelectric device includes a semiconductor substrate. A first electrode is disposed over the semiconductor substrate. A piezoelectric structure is disposed on the first electrode. A second electrode is disposed on the piezoelectric structure. A heating element is disposed over the semiconductor substrate. The heating element is configured to heat the piezoelectric structure to a recovery temperature for a period of time, where heating the piezoelectric structure to the recovery temperature for the period of time improves a degraded electrical property of the piezoelectric device.

Abstract: A light-emitting device is provided. The light-emitting device generates a white light and includes at least one light-emitting diode. The at least one light-emitting diode generates a light beam with a broadband blue spectrum and includes a first semiconductor layer, a second semiconductor layer and a multiple quantum well structure. The multiple quantum well structure is located between the first semiconductor layer and the second semiconductor layer, and includes well layers and barrier layers. The well layers include a first well layer, a second well layer and third well layers different in indium concentrations. The first well layer has the largest indium concentration, and the third well layers have the smallest indium concentration. Three of the well layers that are closest to the first semiconductor layer are the third well layers, and the first well layer is closer to the second semiconductor layer than the first semiconductor layer.

Abstract: A method includes: selecting, from among a series of images, a candidate image that was captured at an image-capturing time instant corresponding to a point-cloud-generating time instant at which a point cloud was generated; generating a two-dimensional data set from the point cloud; superimposing the two-dimensional data set on the candidate image to result in a superimposed image; obtaining a derived distance inconsistency between the candidate image and the two-dimensional data set in the superimposed image; feeding the derived distance inconsistency into a conversion model to obtain a derived time difference; calculating a target time instant based on the derived time difference and the image-capturing time instant of the candidate image; and selecting, from among the series of images that have been received from the image capturing device, a target image that was captured at a time instant the closest to the target time instant.

Abstract: A feature point integration positioning system includes a moving object, an image input source, an analyzing module and a positioning module. The image input source is disposed at the moving object to shoot an environment for obtaining a sequential image dataset. The analyzing module includes a machine vision detecting unit configured to generate a plurality of first feature points in each of the images based on each of the images, a deep learning detecting unit configured to generate a plurality of second feature points in each of the images based on each of the images, and an integrating unit configured to integrate the first feature points and the second feature points in each of the images into a plurality of integrated feature points in each of the images. The positioning module confirms a position of the moving object relative to the environment at each of the time points.

Abstract: A cabin monitoring and situation understanding perceiving method is proposed. A cabin interior image capturing step is performed to capture a cabin interior image. A generative adversarial network model creating step is performed to create a generative adversarial network model according to the cabin interior image. An image adjusting step is performed to adjust the cabin interior image to generate an approximate image. A cabin interior monitoring step is performed to process the approximate image to generate a facial recognizing result and a human pose estimating result. A cabin exterior image and voice capturing step is performed to capture a cabin exterior image and a voice information. A situation understanding perceiving step is performed to process at least one of the approximate image, the cabin exterior image and the voice information according to a situation understanding model to perceive a situation understanding result.

Abstract: A feature point integration positioning system includes a moving object, an image input source, an analyzing module and a positioning module. The image input source is disposed at the moving object to shoot an environment for obtaining a sequential image dataset. The analyzing module includes a machine vision detecting unit configured to generate a plurality of first feature points in each of the images based on each of the images, a deep learning detecting unit configured to generate a plurality of second feature points in each of the images based on each of the images, and an integrating unit configured to integrate the first feature points and the second feature points in each of the images into a plurality of integrated feature points in each of the images. The positioning module confirms a position of the moving object relative to the environment at each of the time points.

Abstract: A light emitting device includes a lamp holder, a light emitting unit which is removably disposed on the lamp holder and includes a plurality of light emitting elements arranged in a closed configuration, and an optical element with a lens portion and a connecting portion and removably disposed on the lamp holder. The lens portion is formed in a closed configuration which is the same as the closed configuration formed by the light emitting elements, and the lens portion is aligned with the light emitting elements. The optical element can be removed via the connecting portion, then the light emitting unit is removed from another end of the elastic clamping unit, so that the light emitting unit can be easily replaced or removed. Besides, the light emitting unit can always fit in the same optical element no matter how the number of the light emitting element changes.

Abstract: A lens module for LED light sources including: a lens body; and an LED light source received in a recess of the lens body. By the conditions of Z1>Z2 and Z3>Y1, and with the shape of light incident surface and the position of LED light source, a light deflection effect is achieved. This allows light emitted from the LED light source to be refracted by the light incident surface and then emitted by the light exiting surface, generating an excellent light deflection effect, thereby increasing illumination in width at the road or public squares and increasing utilization rate of the LED light source.

Abstract: An optical lens for lighting fixture includes a body, which comprises a bottom surface and a light-exit surface at opposing bottom and top sides thereof, an elongated groove formed in the bottom surface, a light incident surface, a first intersection line and a second intersection line respectively connected between the two ends of the elongated groove and the bottom surface, a first line segment and a second line segment respectively connected between the light incident surface and the bottom surface, a first virtual line defined between the two ends of the first line segment, a first distance that is the shortest distance between the two ends of the first intersection line, and a SAGi that is the shortest distance between any point at the first line segment and the first virtual line and satisfies the equation: 0?|SAGi/first distance|×100?2.8.

Abstract: A lens module for LED light sources including: a lens body; and an LED light source received in a recess of the lens body. By the conditions of Z1>Z2 and Z3>Y1, and with the shape of light incident surface and the position of LED light source, a light deflection effect is achieved. This allows light emitted from the LED light source to be refracted by the light incident surface and then emitted by the light exiting surface, generating an excellent light deflection effect, thereby increasing illumination in width at the road or public squares and increasing utilization rate of the LED light source.

Abstract: An optical lens for lighting fixture includes a body, which comprises a bottom surface and a light-exit surface at opposing bottom and top sides thereof, an elongated groove formed in the bottom surface, a light incident surface, a first intersection line and a second intersection line respectively connected between the two ends of the elongated groove and the bottom surface, a first line segment and a second line segment respectively connected between the light incident surface and the bottom surface, a first virtual line defined between the two ends of the first line segment, a first distance that is the shortest distance between the two ends of the first intersection line, and a SAGi that is the shortest distance between any point at the first line segment and the first virtual line and satisfies the equation: 0?|SAGi/first distance|×100?2.8.

Abstract: A lens assembly includes a platform having an incident surface and a projection surface on opposite surfaces thereof. Wire holes are formed to the bottom side along a longer axis of the incident surface for wiring. A cut is formed around the incident surface for receiving waterproof ring. The incident surface has a main oval-shaped concave surface. Two symmetric oval-shaped lateral concave surfaces are formed to front two lateral sides of the main oval-shaped concave surface. The projection surface is formed by a plurality of continuous oval-shaped convex surfaces and discontinuous oval-shaped convex surfaces. Two symmetric vertical planes are formed to two lateral sides of the projection surface. The lens assembly capable of receiving LED larger than 10 mm has good distribution of a transverse maximum intensity of light occurring between ±50 to ±60 degrees and a vertical maximum intensity of light occurring between ±30 to ±40 degrees.

Abstract: A lens assembly includes a platform having an incident surface and a projection surface on opposite surfaces thereof. Wire holes are formed to the bottom side along a longer axis of the incident surface for wiring. A cut is formed around the incident surface for receiving waterproof ring. The incident surface has a main oval-shaped concave surface. Two symmetric oval-shaped lateral concave surfaces are formed to front two lateral sides of the main oval-shaped concave surface. The projection surface is formed by a plurality of continuous oval-shaped convex surfaces and discontinuous oval-shaped convex surfaces. Two symmetric vertical planes are formed to two lateral sides of the projection surface. The lens assembly capable of receiving LED larger than 10 mm has good distribution of a transverse maximum intensity of light occurring between ±50 to ±60 degrees and a vertical maximum intensity of light occurring between ±30 to ±40 degrees.

Abstract: A Chinese abacus adder is disclosed. The Chinese abacus adder includes a B/A (binary to abacus) circuit, a P/A (parallel addition) circuit and a T/B (thermometric to binary) circuit. The Chinese abacus adder has a multiple radix calculating structure, which could reduce power consumption of the system and lower the calculation delay time.

Abstract: A Chinese abacus adder is disclosed. The Chinese abacus adder includes a B/A (binary to abacus) circuit, a P/A (parallel addition) circuit and a T/B (thermometric to binary) circuit. The Chinese abacus adder has a multiple radix calculating structure, which could reduce power consumption of the system and lower the calculation delay time.