Abstract: An antenna structure includes first, second, and third radiators. The first radiator includes first, second, and third segments. One end of the first segment includes a signal feeding end. The second and third segments respectively extend in opposite directions from another end of the first segment. The second radiator includes a fourth segment, a fifth segment, and a sixth segment extending from an intersection of the fourth and fifth segments. The fourth segment includes a first ground end. The fifth segment includes a second ground end. A first slit is between the second and sixth segments; a second slit is between the third, fourth, and sixth segments. The third radiator includes seventh and eighth segments connected to each other in a bending manner. The seventh segment includes a third ground end. A third slit is between the first and seventh segments and between the third and eighth segments.

Abstract: A waterproof connector disposed on a circuit board of an electronic device and inserted with a housing of the electronic device is provided. The waterproof connector includes a connector and a waterproof covering member. The connector is disposed on the circuit board, and the waterproof covering member covers the connector and a part of the circuit board. An outer surface of the waterproof covering member has multiple ribs, and the ribs contact the housing to provide waterproof protection for an inside of the electronic device.

Abstract: An electronic device includes a housing, a heat conductive portion, a circuit board, a fin set, and a fan. The housing has an accommodating space. The heat conductive portion is disposed in the accommodating space, and divides the accommodating space into a first space and a second space. The circuit board is disposed in the first space and includes a heat source. The heat source generates heat and is thermally coupled to the heat conductive portion. The fin set is disposed in the second space and thermally coupled to the heat conductive portion. The fan is disposed in the second space and located on one side of the fin set. The fan is adapted to guide an airflow through the fin set to discharge the heat generated by the heat source from the housing.

Abstract: A head-mounted electronic device including a body, a circuit board, and a fan is provided. The body includes a first cover, a second cover, and an annular side wall. The annular side wall is encircled to form two opposite openings, and the first cover and the second cover are assembled on the openings. The first cover has a main air outlet and a pair of first air inlets. The second cover has a pair of second air inlets. The circuit board is disposed in the body and is located between the first cover and the second cover. The fan is disposed on the circuit board and is located in the body. An air intake of the fan faces the first cover. The fan draws air from the pair of first air inlets and the pair of second air inlets, and blows the air out of the main air outlet.

Abstract: A clamping device includes first and second clamping components and at least one elastic component. The first clamping component includes a first clamping portion and two first pivot portions connected to the first clamping portion. The second clamping component includes a second clamping portion and two second pivot portions connected to the second clamping portion. The second pivot portions are pivotally connected to the first pivot portions respectively, such that the first and second clamping components are capable of rotating relative to each other to present a first state and a second state. The elastic component is connected to the first clamping component and the second clamping component. When the first and second clamping components are in the second state, the elastic component provides an elastic force for the first clamping portion and the second clamping portion to be restored to the first state to clamp an object.

Abstract: A battery charging method is disclosed. The method includes: obtaining historical working durations in which the electronic device was powered by a battery of the electronic device; in response to an electronic device connected to a charging power source, obtaining a remaining battery level and a target capacity of a battery of the electronic device, and accordingly defining a capacity to be charged; obtaining a current system time when the electronic device is connected to the charging power source; obtaining a specific time difference between the current system time and a predicted working duration, wherein the predicted working duration is a specific working duration chosen from the historical working durations subsequent to the current system time; and using the capacity to be charged to correspond to the specific time difference to obtain a predicted charging current value.

Abstract: A laptop computer and a chassis thereof are disclosed. The chassis comprises a display case, a host case, a shielding member and a connecting member. The display case includes an upper cover having a first notch and a screen frame connected with the upper cover. The host case includes a keyboard frame having a second notch and a bottom cover having a third notch. The bottom cover is connected with the keyboard frame. The first, second and third notches together form an accommodation space to accommodate at least one pivot structure. The display case is rotatable relative to the host case through the pivot structure. The shielding member is configured to cover at least part of the first notch. The connecting member is disposed between the display case and the host case, and located in the accommodation space. The pivot structure is located in the connecting member.

Abstract: An augmented reality (AR) device includes a main body, a support element, and a lens module. The main body includes a base, a projector, and a first pivot portion. The projector is pivoted to the base by using the first pivot portion, so that the projector is capable of rotating relative to the base by using the first pivot portion as a first rotation axis. The support element is pivoted to a first end portion of the base and is configured to wear on a head of a user. The lens module is pivoted to a second end portion of the base and the second end portion is opposite to the first end portion. The lens module is capable of rotating relative to the base and being overlapped under the base. Through a rotatable and foldable accommodation structure, the augmented reality device is easier to be carried and accommodated.

Abstract: A head-up display device, including a projection unit, a lens unit, and a geometric cavity, is provided. The projection unit is configured to emit an image light beam. The lens unit is configured to project the image light beam to a windshield. The geometric cavity includes multiple mirrors. The mirrors sequentially reflect the image light beam. A route of the image light beam in the geometric cavity corresponds to a virtual image distance of an image generated by the image light beam projected on the windshield.

Abstract: A sealing device adapted for an object to be disposed through is provided. The sealing device includes a casing, a sealing elastic member, and a pressing member. The casing has an accommodating groove and a penetrating via communicated with the accommodating groove. The sealing elastic member is detachably disposed in the accommodating groove and has a through hole aligned with the penetrating via. The sealing elastic member is adapted to be compressed along an axis. The through hole has a first inner diameter before compression and a second inner diameter after compression. An outer dimension of the object is less than or equal to the first inner diameter and greater than the second inner diameter. The pressing member is detachably disposed at the casing and presses against the sealing elastic member, so that the compressed sealing elastic member is fixed in the accommodating groove.

Abstract: An electronic device includes a processor, a battery, a charging circuit, a controller, and an arithmetic logic unit. The processor is capable of operating at a preset frequency or a low frequency. The charging circuit is electrically connected to an external power supply and a battery and transmits a disconnection signal and to be powered by the battery when the external power supply and the charging circuit are changed from a connected state to a disconnected state. The controller is configured to transmit a first control signal when the external power supply and the charging circuit are changed from the connected state to the disconnected state. The arithmetic logic unit is configured to transmit a frequency reduction signal to the processor according to the disconnection signal and the first control signal, so that the processor reduces the preset frequency to the low frequency and operates at the low frequency.

Abstract: An antenna module includes first to third radiators and a ground radiator. The first radiator includes first and second sections and excites at a first frequency band. An extension direction of the first section, including a feeding end, is not parallel to an extension direction of the second section. The second radiator includes third and fourth sections. The third section extends from an intersection of the first and second sections. The third section excites at a second frequency band. The third radiator is disposed beside the first radiator and away from the second radiator. The ground radiator is disposed on one side of the first, second, and third radiators, and includes a ground end. The fourth section of the second radiator is connected to the third section and the ground radiator. The third radiator is connected to the ground end.

Abstract: An antenna module disposed on a substrate having a first and a second surface opposite to each other includes a microstrip line, a first radiator, a ground radiator and a ground plane. The microstrip line, the first radiator and the ground radiator are disposed on the first surface. The microstrip line includes a first and a second end opposite to each other. The first end includes a first feeding end. The first radiator is connected to the second end of the microstrip line. The ground radiator surrounds the microstrip line and the first radiator and has a first opening and two opposite grounding ends. The first end of the microstrip line is located in the first opening. A gap is formed between each grounding end and the first feeding end. The ground plane is disposed on the second surface. The ground radiator is connected to the ground plane.

Abstract: The disclosure provides a classification method and an electronic apparatus. The classification method includes the following steps. First feature data of multiple pictures of assembly is extracted, and each picture of assembly includes an operator at a station. The first feature data is converted into a first feature vector. Second feature data recording personal data of the operator is converted into a second feature vector. The first feature vector and the second feature vector are merged into a first feature matrix. The efficiency of the operator operating at the station is classified according to the first feature matrix to obtain a classification result.

Abstract: An automatic model reconstruction method and an automatic model reconstruction system for a component recognition model are provided. The automatic model reconstruction method includes the following steps. A first component image of a plurality of circuit boards is sequentially captured at a first position. The component recognition model sequentially recognizes component categories of the first component images, and a number of recognition probability values are output. According to the recognition probability values, a number of exponentially weighted moving averages (EWMA) are obtained. The first component images corresponding to the exponentially weighted moving averages lower than a first set value are collected until one of the exponentially weighted moving averages is lower than or equal to a second set value. The collected first component images are regarded as abnormal component images. The component recognition model is reconstructed according to the abnormal component images.

Abstract: An antenna module includes a first radiator, a ground plane and a second radiator. The first radiator includes a first section and a second section. The first section includes a first end and a second end. The first end is a feeding end, and the second end is connected to the second section. The first section includes first parts bent back and forth along a first direction, the second section includes second parts bent back and forth along a second direction, and an included angle formed between the first direction and the second direction is 60 degrees to 120 degrees. The ground plane is disposed beside the first section of the first radiator. An end of the second radiator is connected to the feeding end of the first radiator, and the other end of the second radiator is vertically connected to the ground plane.

Abstract: An antenna module includes first, second, third antenna radiators, and first, second, third ground radiators. The first antenna radiator includes a first feeding terminal. The second antenna radiator extends from the first antenna radiator. The third antenna radiator extends from the first feeding terminal. The first ground radiator is disposed beside the first and second antenna radiators. A first coupling gap exists between the first ground radiator and the first and second antenna radiators. The second ground radiator is disposed beside the second antenna radiator. A second coupling gap exists between the second ground radiator and the second antenna radiator. The third ground radiator is disposed beside the first and second antenna radiators. A third coupling gap exists between the third ground radiator and the first antenna radiator. A fourth coupling gap exists between the third ground radiator and the second antenna radiator.

Abstract: Disclosed is an electronic device, including a first housing, a second housing, and a snap release module. The first housing is provided with a fastening slot. The second housing is provided with an accommodation slot. The snap release module is accommodated in the accommodation slot, and includes a slide member, an elastic component, a hook, and a stop member. The slide member reciprocates in a first axial direction. When the first housing is assembled to the second housing in the second axial direction, the slide member is located at the snap position for the hook to be buckled in the fastening slot, and the first housing presses the stop member so that the stop member abuts against the slide member. When the slide member slides from the snap position to the release position, the stop member stops the slide member and the hook is detached from the fastening slot.

Abstract: A model training apparatus, a model training method, and a computer-readable medium are provided. In the method, a labeled abnormal sample is inputted into an abnormal detecting model. The abnormal detecting model is based on an autoencoder structure. A reconstructed error between the abnormal sample and an output of the abnormal detecting model is maximized to optimize the abnormal detecting model.