Abstract: A buckle assembly and an electronic device using the buckle assembly are provided. The buckle assembly is assembled in a housing of the electronic device. The housing has an inner surface and a column with a first through hole, wherein the column protrudes from the inner surface toward inside of the housing. The buckle assembly includes a fixing element, a shaft and a pair of retaining rings. The fixing element is assembled in the first through hole. The shaft is fixed in the housing. The retaining rings are pivoted to the shaft. Each of the retaining rings has an arc portion, and the retaining rings buckle each other and abut on the column. The arc portions are co-constructed to form a first hole communicating with the first through hole while the retaining rings buckle each other, and the fixing element is inserted in the first hole and column to be fixed in the housing.

Abstract: A buckle assembly and an electronic device using the same are provided. The buckle assembly is adapted to be assembled on a housing of the electronic device. The housing has an inner surface and a first hole. The buckle assembly includes an assembly element, a slider, and an abutting member. The assembly element is assembled in the first hole along a first direction; the slider is disposed on the inner surface of the housing and is capable of moving relative to the housing along a second direction to lock or unlock the assembly element, wherein the second direction is perpendicular to the first direction; and the abutting member is disposed on the inner surface of the housing and is used to abut against the slider when the slider locks the assembly element.

Abstract: A luminance compensation method is provided. The luminance compensation method includes: establishing a time-varying luminance sequence according to an average luminance value of a plurality of sampled display devices in each unit time during an initial start-up period; establishing an operating luminance sequence according to an average operating luminance value of the sampled display devices under a plurality of different driving condition values after the initial start-up period; generating a driving condition value look-up table according to the time-varying luminance sequence and the operating luminance sequence; and obtaining compensation driving condition values in each unit time according to the driving condition value look-up table and the time-varying luminance sequence and accordingly establishing a time-varying compensation sequence, such that a display device drives a backlight module according to the time-varying compensation sequence in each time unit during the initial start-up period.

Abstract: A charging base includes a charging cradle, a pad plate, and a recess positioning portion. A mobile device includes a bottom base, a contact portion disposed on the bottom base, and a drive wheel drives the mobile device to move. The charging cradle includes a platform and a charging contact portion, and a height of the charging contact portion is greater than a height of the bottom base, when the drive wheel moves onto the pad plate, the height of the bottom base is greater than the height of the charging contact portion, when the drive wheel reaches the recess positioning portion while moving from the pad plate toward the charging cradle, the height of the bottom base is less than or equal to the height of the charging contact portion, so that the bottom base covers the platform and the contact portion is in contact with the charging contact portion.

Abstract: A connector mounting mechanism includes a base, a power module, a guide buffer module, a first position guide block, a first joint guide block, a second position guide block, and a second joint guide block. The first position guide block is connected with the power module and movably received in the guide buffer module. The first joint guide block is disposed on the guide buffer module and connected with the power module, and is configured to fix a first connector. The second joint guide block is disposed at the second position guide block and configured to fix a second connector. The power module drives the first joint guide block to be plugged into the second joint guide block after driving the first position guide block to be guided into the second position guide block.

Abstract: A rotating assembly is provided and is adapted to be assembled on a foot stand. The rotating assembly includes a limit ring, a base, a spherical friction part, and a pressing module. The limit ring is adapted to be fixed on the foot stand. The base is movably assembled on the limit ring along an axis. The base and the limit ring form a space. The spherical friction part is rotatably disposed in the space between the limit ring and the base. The pressing module is adapted to be fixed on the foot stand. The pressing module is configured on one side of the base along the axis, and pushes the base to a direction of the limit ring to compress the space formed by the base and the limit ring, so that the spherical friction part is in contact with the limit ring and the base. The spherical friction part is temporarily maintained at a specific angle by friction between the spherical friction part and the limit ring and friction between the spherical friction part and the base.

Abstract: A camera-lens waterproofing device is provided, including a shell, a camera lens, a cover ring and an outer cover. A mounting hole is formed in a surface of the shell. The camera lens includes a body and a lens. One end of the body is disposed to the mounting hole, and the other end of the body extends out of the mounting hole. The lens is located at the other end of the body. The cover ring is connected to the body in a sleeving manner and fixed on the mounting hole. The outer cover is fixed at a periphery of the lens in a sleeving manner to form a first-layer waterproof structure and disposed on the surface of the shell, and covers the exterior of the cover ring. The cover ring abuts between the camera lens and the shell to form a second-layer waterproof structure.

Abstract: An antenna module includes a feeding end, a first radiator, a second radiator, a third radiator, and a ground structure. The first radiator excites a first frequency and a second frequency. The second radiator extends from the first radiator and excites a third frequency with a part of the first radiator. The third radiator extends from the first radiator and excites a fourth frequency with a part of the first radiator. The ground structure includes a main ground surface and an extending portion extending from the main ground surface. The main ground surface is located below the feeding end, and the extending portion extends from the main ground surface to a bottom of the first radiator and is apart from the first radiator. An extending direction of a portion of the first radiator above the extending portion is orthogonal to an extending direction of the extending portion.

Abstract: An antenna device includes first antenna units, second antenna units, first switching circuits and second switching circuits. The first antenna units generate radio frequency (RF) signals operating at a first frequency. The second antenna units generate RF signals operating at a second frequency. The first frequency is larger than the second frequency. The first switching circuits selectively enable at least one of the first antenna units. Each of the first switching circuits includes a first switch element and a second switch element. The first switch element is connected in parallel with an inductor. The second switch element is connected in parallel with another inductor. The second switching circuits selectively enable at least one of the second antenna units.

Abstract: A rotary device includes a rotatable member, at least one movable ring, and a supporting member. The supporting member includes a stopping portion. The rotatable member includes a rotary ring and a positioning portion. The movable ring includes an acting portion. The rotary ring and the at least one movable ring are coaxially disposed on the supporting member, and the movable ring is disposed between the rotatable member and the supporting member. The rotary ring and the at least one movable ring is capable of rotating relative to the supporting member. A part of the positioning portion overlaps the movable ring. When the rotary ring rotates relative to the supporting member, the part of the positioning portion pushes the acting portion, to drive the at least one movable ring to rotate until the acting portion is stopped between the positioning portion and the stopping portion.

Abstract: A charge device, including a fixing base, a charging arm pivoting lever, and a pivoting lever, is provided. The charging arm includes a first end portion and a second end portion. The pivoting lever includes a first portion and a second portion, and the first portion is pivotally connected to the fixing base. The pivoting lever is adapted to rotate relative to the fixing base, the second portion is pivotally connected to the first end portion, and the charging arm is adapted to rotate relative to the pivoting lever. A charging system is also provided.

Abstract: The following steps are executed by a self-propelled device and a calculating device: the self-propelled device moves on a path to form a moving trajectory; the calculating device obtains a sensing data file generated by a sensing module of the self-propelled device on the path; after the sensing data file is imported into a simultaneous localization and mapping algorithm, a map corresponding to the path can be constructed; if the sensing data file is imported into a loop closure algorithm, a pose at each unit time can be obtained, and an optimized trajectory can be formed; when the sensing data file is imported into a cartographer localization algorithm, a reference trajectory can be constructed, and whether the reference trajectory approaches an optimized trajectory is determined; and parameters capable of being imported into the self-propelled device are obtained according to the reference trajectory which approaches the optimized trajectory.

Abstract: A trigger device is configured to trigger a Hall sensor located above the trigger device and the trigger device includes a body, a pressing member and a pushing member. The body includes a base, an elastic member and a shaft. The elastic member is disposed in the base and the shaft is pivotally connected to the base. The pressing member is pivotally connected to one end of the shaft. The pushing member is pivotally connected to the other end of the shaft, slidably disposed on the base and holds against the elastic member. When the pressing member is pressed, the pressing member pushes the shaft to rotate and push the pushing member to undergo a displacement so that a position of a magnetic member of the pushing member and a position of the Hall sensor overlap. And the pushing member squeezes the elastic member to generate an elastic restoring force.

Abstract: Provided is an electronic device including a multi-input multi-output antenna structure configured on a substrate, and the multi-input multi-output antenna structure includes two dipole antennas and two second grounded radiators. Each dipole antenna is used for resonating a first frequency band and a second frequency band. Each dipole antenna includes a feed-in radiator and a first grounded radiator. The feed-in radiator has a feed-in end. The first grounded radiator is disposed beside the feed-in radiator and has a first grounded end. The two second grounded radiators are positioned between the two dipole antennas, the two second grounded radiators are separated from the two first grounded radiators and are respectively corresponding to the two first grounded radiators, and a bent gap is formed between the two second grounded radiators.

Abstract: A control method of a portable electronic device (PED) includes following steps. A trigger event is received. Next, an accelerator detects a first behavior of the PED and produces a first signal. If the first signal satisfies a first preset condition, the accelerator detects a second behavior of the PED and produces a second signal. If the second signal satisfies a second preset condition, the PED performs an action.

Abstract: A connector includes a base, a transmission interface, a shielding cover and a shielding layer. The base includes a slot. The transmission interface includes a clamping portion and a plugboard. The clamping portion is clamped in the slot and a portion of the plugboard protrudes out of the base. The shielding cover has an accommodation space and a shielding layer. The accommodation space is disposed to accommodate the base and the transmission interface, and the shielding layer is electroplated on an inner side surface of the shielding cover. The shielding cover covers the base and the transmission interface and is disposed to block electromagnetic waves generated by the transmission interface.

Abstract: The application discloses an electronic device including a motherboard and a housing structure. The motherboard has a first surface and a second surface. The housing structure includes a first casing, a first cushion, a second casing, and a second cushion. The first casing has at least one first fixing member. The first cushion covers the first surface, is accommodated in the first casing and has at least one first through hole. The second casing has at least one second fixing member. The second cushion covers the second surface, is accommodated in the second casing and has at least one second through hole. A peripheral edge of the first cushion is attached to a peripheral edge of the second cushion, and the first fixing member may be fixed to the second fixing member through the first through hole and the second through hole.

Abstract: An antenna module includes a metal board, an inverted F metal plate and an antenna unit. A slot is provided between the inverted F metal plate and the metal board, the inverted F metal plate and the metal board are integrally formed, and the inverted F metal plate is disposed perpendicular to the metal board. The antenna unit is disposed corresponding to the slot and the inverted F metal plate, and includes a radiation part and a ground part. The radiation part is coupled to a signal feeding point and includes a first radiation body and a second radiation body. The first radiation body, the slot and the inverted F metal plate operate cooperatively to generate a wireless signal at a first operating frequency. The second radiation body, the slot and the inverted F metal plate operate cooperatively to generate a wireless signal at a second operating frequency.

Abstract: The present disclosure discloses a wall mount device adapted to be fixed to a wall surface and carry an electronic device with connecting wires. The wall mount device comprises a wall mount, a first and a second wire arrangement component. The wall mount has an upper and a lower surface. The upper surface faces the wall surface and the lower surface faces the electronic device. The first wire arrangement component is positioned on the lower surface and adjacent to a first side of the wall mount. The second wire arrangement component is positioned on the lower surface and adjacent to a second side vertical to the first side of the wall mount. The connecting wires are sequentially and detachably accommodated in the first and the second wire arrangement component from the electronic device to fix the connecting wires to corresponding positions on the wall mount.

Abstract: A dual-band circularly polarized antenna structure includes a microstrip line, an antenna unit and a ground. The antenna unit includes a first radiator and a second radiator. The first radiator has a feed-in portion and a first spiral pattern. The first spiral pattern spirals outwardly from a starting point close to the feed-in portion. The second radiator has a first grounding portion and a second spiral pattern. The second spiral pattern spirals outwardly from a starting point close to the first grounding portion in a manner non-overlapping with the first spiral pattern. One of the first and the second radiators has a second grounding portion. The microstrip line and the antenna unit are arranged apart. The feed-in portion of the first radiator of the antenna unit is coupled to the microstrip line. The first and the second grounding portions are coupled to the ground.