Abstract: An electronic device including a casing, a circuit board and a dipole antenna structure is provided. The circuit board is disposed in the casing and includes a ground end. The dipole antenna structure is disposed in the casing and includes a feeding end, a first radiator and a second radiator. The first radiator is connected to the feeding end, and the second radiator is connected to the ground end. The first radiator and the second radiator are mirror symmetrical to each other with respect to the feeding end. A length of a short side of the circuit board is less than a length of the first radiator, and the length of the short side of the circuit board is less than a length of the second radiator.

Abstract: A wearable electronic device is disclosed. Wearable electronic device includes a metal casing, a dielectric support part, a frame-shaped metal part, a dielectric sidewall and a first antenna wired circuit. The metal casing is electrically connected to the system ground. The dielectric support part is disposed on the metal casing. The frame-shaped metal part is disposed on the dielectric support part. One side of the frame-shaped metal part is electrically connected to the metal casing and another side of the frame-shaped metal part has a slot. The dielectric sidewall is surrounding within the metal casing. The first antenna wired circuit is disposed on the inner surface of the dielectric sidewall and insulated from the metal casing. The first antenna wired circuit is near the slot. The first antenna wired circuit and the frame-shaped metal part resonate a first resonant frequency band.

Abstract: A patch antenna includes a grounding portion and a radiating portion. The radiating portion includes a first feeding point, a first grounding point, a second feeding point, and a second grounding point. The first feeding point is electrically connected to a first signal source. The first grounding point is electrically connected to the grounding portion. The second feeding point is electrically connected to a second signal source. The second grounding point electrically connected to the grounding portion. The line formed by connecting the first feeding point and the first grounding point is substantially perpendicular to the line formed by connecting the second feeding point and the second grounding point.

Abstract: A dual band antenna module including a first radiator, a second radiator, a first filter and a second filter is provided. The first radiator resonates to generate a first frequency band and includes a first feeding end and a first ground end. The second radiator resonates to generate a second frequency band and includes a second feeding end and a second ground end. The first filter is extended from the first feeding end in a direction away from the first radiator and used for filtering the second frequency band. The second filter is extended from the second feeding end in a direction away from the second radiator and used for filtering the first frequency band.

Abstract: A portable electronic device includes a first body, a second body, a pivoting mechanism, a linking mechanism, and a first speaker unit. The pivoting mechanism is pivoted between the first body and the second body and includes a first rotating shaft, a second rotating shaft, and a third rotating shaft, and the third rotating shaft has a mounting portion. The linking mechanism includes a first rolling member and a second rolling member. The first rolling member is connected to the third rotating shaft of the pivoting mechanism, and the second rolling member is connected to the second rotating shaft of the pivoting mechanism. The first rolling member and the second rolling member roll relative to each other within an angle range. The first speaker unit is fixed to the mounting portion.

Abstract: The present disclosure discloses an electronic device including an electronic apparatus and an electric connector. The electronic apparatus includes an electric connection port. The electric connection port includes a concave trench, a first and second conductive strips are disposed in the concave trench. The first conductive strip and the second conductive strip respectively extend along an extending direction of the concave trench. The electric connector includes a first and second elastic contacts which are exposed and protruded outward. When the electric connector is plugged into the electric connection port, the first elastic contact is in contact with the first conductive strip, and the second elastic contact is in contact with the second conductive strip. The electric connection port may accommodate the electric connector, so that the electric connector may be selectively plugged to any position on the electric connection port along the extending direction of the concave trench.

Abstract: A data access method of transactional file system and electronic apparatus are provided. The method includes: when performing a data access operation, selecting a valid transaction point as a first transaction point from a transaction point table including a plurality of transaction points; copying the information in the first transaction point to a second transaction point in the plurality of transaction points, and executing the data access operation according to the information in the second transaction point; and when the data access operation is completed, executing a commit instruction and setting the second transaction point as the valid transaction point according to the commit instruction.

Abstract: An electronic device housing includes a first housing, a second housing, and a foaming buffer unit. The first housing has a first inner surface, and the first inner surface has a first abutting area. The second housing has a second inner surface, where the second inner surface has a second abutting area, the second housing is connected to the first housing, and the second inner surface is opposite to the first inner surface. The foaming buffer unit is disposed between the first inner surface and the second inner surface, and abuts against the first abutting area of the first inner surface and the second abutting area of the second inner surface.

Abstract: A remote control method, and a remote control system and a gateway for implementing the method are provided. The method includes receiving, by a remote control device, a plurality of ultra-wideband signals transmitted by a main control device to calculate position data; calculating, by the remote control device, rotation vector data according to detection data of the remote control device; transmitting, by the remote control device, the rotation vector data and the position data to the main control device to allow the main control device to identify an electronic device the remote control device aims at and transmit control information corresponding to the electronic device to the remote control device according to the rotation vector data and the position data; and displaying, by the remote control device, a control interface for controlling the electronic device according to the received control information.

Abstract: A wireless communication system disposed at a wearable electronic device. The wearable electronic device includes a metallic accommodating housing and a first metallic curved piece. The first metallic curved piece is protrudingly disposed at one side of the metallic accommodating housing. The wireless communication system includes a circuit board, a first insulation cover and a first loop antenna. The circuit board is coupled with the first loop antenna to generate a first wireless radio-frequency signal. The first insulation cover surrounds the first metallic curved piece. The first antenna generates a first band and a second band by resonance according to the first wireless radio-frequency signal after electromagnetically coupled with the first metallic curved piece.

Abstract: A wireless communication device includes a housing and a plurality of antenna units. The antenna units surround a surface of the housing and stand on a system ground. Each of the antenna units includes a first radiation part, a second radiation part and a conductive component. The first radiation part has a signal feed point for receiving a feeding signal. The second radiation part surrounds the first radiation part and has a first side, a second side, a first ground point and a second ground point, wherein the first side is parallel to the system ground while the second side is perpendicular to the system ground. The first side is perpendicular to the second side and shorter than the second side. The conductive component is disposed between the first side and the system ground and connected to the first side and the system ground.

Abstract: A circuit board is provided. The circuit board includes a first pin row and a plurality of signal vias. The first pin row includes a first side and a second side, wherein the first side and the second side are opposite to each other. A plurality of traces of the circuit board are electrically connected to a plurality of pins of the first pin row respectively through the signal vias. Three consecutive signal vias of the signal vias are sequentially disposed at the first side of the first pin row, the second side of the first pin row, and the first side of the first pin row.

Abstract: An electronic device includes a ground element, a conductive assembly, a circuit board, an insulating element and a conductive element. The conductive assembly includes a base and a screw element. The base is disposed at the ground element and contacts the ground element. The screw element has a fixing portion and a clamping portion connected to the fixing portion. The outer diameter of the clamping portion is larger than the outer diameter of the fixing portion, and the fixing portion is fixed to the base. The circuit board is disposed between the base and the clamping portion of the screw element. The insulating element is disposed between part of the clamping portion and the circuit board. The conductive element is disposed at the circuit board and contacts the conductive assembly. The circuit board is electrically connected to the ground element through the conductive element and the conductive assembly.

Abstract: A dual band printed antenna that includes a metal substrate, an electrically isolated supporting element and a monopole antenna element. The metal substrate includes a slot. A side of the isolated supporting element is formed on the metal substrate. The monopole antenna element is formed on the other side of the isolated supporting element and corresponding to the position of the slot. The monopole antenna element includes a radiation part that includes a feed point and a ground part separated from the radiation part for a distance. The radiation part resonates with the slot to generate a radiation pattern of a first frequency band. The radiation part resonates itself to generate a radiation pattern of a second frequency band.

Abstract: An electronic device includes a first body and a feed device. A conductive housing of the first body includes a first closed slot, a second closed slot, a feed point and a ground point. The feed device includes a circuit substrate, a feed portion, a ground portion, a first connection portion and a second connection portion. The circuit substrate includes a first surface, a second surface, first conductive holes and second conductive holes, and the first surface faces the conductive housing. The feed portion and the ground portion are disposed on the second surface. The feed portion is electrically connected to the feed point, and the ground portion is electrically connected to the ground point. The feed device and the conductive housing form an antenna. The antenna operates in first and second bands through first and second paths formed by the first and the second closed slots.

Abstract: A video surveillance method and a video surveillance system applied the method are provided. The method includes capturing an image of at least a part of a monitored area to obtain a plurality of video streams; sensing the monitored area to obtain a plurality of sensing data; if an image of an object of a video stream is determined as a target object, determining whether the target object triggers a target event according to one of the sensing data corresponding to the video stream; if the target object is determined as triggering the target event, outputting a feature value corresponding to the target object according to a preset analysis condition, the video stream including the target object and the target event; and generating a notification event corresponding to the target object according to the feature value and a model weight value corresponding to the target object.

Abstract: A test cable and a test method using the same are provided. The test cable includes a universal serial bus (USB) connector, a test terminal connector and a switch circuit. The USB connector is coupled to an electronic device and has a first pair of data pins and a second pair of data pins. The test terminal connector is coupled to a test fixture and has a pair of test data pins and a first control pin, and the test fixture is used for outputting a first control signal to the first control pin. The switch circuit is coupled to the first pair and second pair of data pins, the pair of test data pins and the first control pin, and couples the pair of test data pins to the first pair or second pair of data pins according to the first control signal.

Abstract: A Text information displaying method for displaying a message received or generated by a first electronic device on a display of a second electronic device. The text information displaying method includes the steps of: receiving a request of displaying the message; generating a word string according to the request, wherein the word string includes at least one word pattern and at least one graph code correspondingly representing the at least one word pattern; transmitting the word pattern and the graph code from the first electronic device to the second electronic device; and receiving the at least one word pattern and the at least one graph code, and displaying the at least one word pattern corresponding to the message received or generated by the first electronic device on the display according to the graph code.

Abstract: A shielding cover mounting and dismounting apparatus for mounting or dismounting a shielding cover connected with a circuit board. The circuit board has an upper surface and a lower surface, and the shielding cover is connected with the lower surface. The apparatus includes a base, a first supporting seat, a second supporting seat, a heater and a moving seat. The first supporting seat is disposed on the base and has a bearing cavity. The shielding cover and the circuit board are disposed in the bearing cavity, and the shielding cover is disposed between the circuit board and a bottom surface of the bearing cavity. The second supporting seat is disposed in an opening of the bearing cavity. The heater is disposed at one side of the upper surface of the circuit board. The moving seat drives the heater to move closer to or away from the circuit board.

Abstract: An unlocking method and an electronic device are provided. The electronic device stores a predetermined color sequence. The unlocking method is adapted for an electronic device having a display interface. The method includes: defining a plurality of blocks on the display interface; randomly allocating a plurality of colors to be displayed to the blocks; receiving locations of a plurality of tapping operations to generate a color sequence according to the colors displayed on the blocks which are tapped; comparing the color sequence with the predetermined color sequence; unlocking the electronic device if the color sequence is the same as the predetermined color sequence.