Abstract: An antenna module includes a ground radiator, a first antenna, and a second antenna. The first antenna comprises a first radiator, a second radiator, and a third radiator. The first radiator and the second radiator resonate at a low frequency band and a first high frequency band, and a part of the first radiator and the third radiator resonate at a second high frequency band. The second antenna includes a fourth radiator, the second radiator, and a connecting section. The connecting section is connected between the fourth radiator and the second radiator. A part of the fourth radiator, the connecting section, and the second radiator resonate at the low frequency band and the second high frequency band, and the fourth radiator, the connecting section, and a part of the second radiator resonate at the first high frequency band.

Abstract: A server and an assembly method thereof are disclosed. The server includes a chassis base, a first fan rack, a motherboard, a second fan rack, and a fan module. The first fan rack and the motherboard are both assembled on the chassis base, and the second fan rack is disposed on a side of the motherboard relatively close to the first fan rack, in which the first fan rack and the second fan rack form a receiving space, and the fan module is placed in the receiving space.

Abstract: A knob assembly is assembled in a housing, to drive a rotary shaft. The housing includes a groove and a perforation. The knob assembly includes a tightening ring, a sliding member, and a knob. The sliding member includes a through hole, a release groove, and a tightening groove. A diameter of the release groove is greater than that of the tightening groove. The knob includes a rotary table and a central shaft. The central shaft is connected to the rotary table, sequentially penetrates through the through hole and the tightening ring to the perforation, and is sleeved on the rotary shaft. When the sliding member is moved from a release position to a locking position, the tightening ring is moved from the release groove to the tightening groove, to enable the tightening ring to tightly wrap the central shaft, so as to fix the knob.

Abstract: A key structure is applicable to an electronic device having a housing. The key structure includes a seat, a switch, a button, and an elastic sheet. The seat is disposed in the housing and has a first through hole. The switch is disposed on the seat. A key pillar of the button passes through the first through hole to abut against the switch. The elastic sheet includes a body, and a plurality of first elastic arms, second elastic arms and third elastic arms. The first elastic arms extending from the body are abutting against the housing. The second elastic arms extending from an inner edge of the second through hole are engaged with the key pillar. The third elastic arms abutting against the keycap are configured to support the button and provide a restoring force that can restore the button from a pressed position to an initial position.

Abstract: An electronic device includes a metal back cover, a metal frame, and two radiators. The metal frame disposed at a side of the metal back cover includes two disconnecting parts, a second slot, and two connecting parts. A first slot is formed between each of the disconnecting parts and the metal back cover. The second slot is formed between the two disconnecting parts. The two connecting parts are connected to a side away from the second slot of the two disconnecting parts respectively and are connected to the metal back cover. Each of the radiators connects the metal back cover to the corresponding disconnecting part over the first slot. The two radiators are disposed symmetrically based on the second slot. Each radiator is coupled with the corresponding disconnecting part, the corresponding connecting part, and the metal back cover to resonate a first, a second, and a third frequency band.

Abstract: A voice control system and a voice control method for an automatic door are provided. The voice control system includes a sound detection device, a storage device, a first determination circuit, a second determination circuit and a control circuit. The sound detection device detects a sound signal of a sound source, the storage device includes a voiceprint database that includes reference voiceprint features. The first determination circuit analyzes a voiceprint feature of the sound signal and compares the voiceprint feature with the reference voiceprint features. The second determination circuit determines whether a velocity of the sound source falls within a reference speed range according to a frequency variation of the sound signal that matches one of the voiceprint features. In response to the velocity of the sound source within the reference speed range, the control circuit controls the automatic door to be in an open state.

Abstract: A motherboard includes a connector, a controller, a platform controller hub and a switch block. The connector is configured to be electrically connected to an expansion card, and includes a first pin, a second pin and a third pin. The controller includes an analog-to-digital converter coupled to the first pin. The controller identifies a digital voltage value of the first pin via the analog-to-digital converter, and generates a power supply requirement and a signal transmission requirement corresponding to the expansion card based on the digital voltage value. The switch block is coupled to the second pin, the third pin, the controller and the platform controller hub. The switch block provides a power supply voltage to the second pin based on the power supply requirement, and the switch block couples the third pin to the platform controller hub based on the signal transmission requirement.

Abstract: An electronic device includes a casing, an antenna, and a connector. The casing includes a metal layer and a first slot and a second slot located on the metal layer. The metal layer includes a metal connecting segment, a first region, and a second region. The metal connecting segment is located between the first slot and the second slot, and the first region and the second region are separated by the first slot, the second slot, and the metal connecting segment. The antenna is connected to the first region, and the antenna is adapted to resonate at a frequency band. The connector is connected to the second region.

Abstract: An antenna module includes a ground radiator, a first antenna, and a second antenna. The first antenna includes a first feeding end, a first segment, a second segment, a third segment, and a fourth segment. A first area of the first antenna and a second area including a part of the first antenna and a part of the ground radiator resonate at a first frequency band. A third area of the first antenna and the second area resonate at a second frequency band. An area including a part of the second antenna, the third segment, the first segment, and the second segment resonates at the first frequency band. An area of the second antenna and an area including the part of the second antenna, a part of the third segment, and another part of the ground radiator resonate at the second frequency band.

Abstract: An electronic device and a method for updating a firmware are disclosed. The method includes: receiving a firmware updating file through a communication interface, where the firmware updating file includes boot data; detecting a first field of the firmware updating file to determine whether the firmware updating file supports a first format; in response to the firmware updating file supporting the first format, detecting a second field of the firmware updating file to obtain an identifier; and transmitting the boot data to a firmware component corresponding to the identifier through the communication interface to update the firmware component.

Abstract: An antenna assembly includes a patch antenna, a metal layer, and a feed-in signal layer. The metal layer is disposed on a side of the patch antenna and includes a first slot and a second slot. The feed-in signal layer is disposed on a side of the metal layer opposite the second antenna and includes a transmitting port, a receiving port, a hybrid coupler, and two microstrips. The transmitting port and the receiving port are connected to the hybrid coupler, and the two microstrips are extended in the direction away from the hybrid coupler. Projections of two ends of the two microstrips onto the metal layer are overlapped with the first slot and the second slot. An antenna array is also mentioned.

Abstract: The present invention provides a system for tracking a creature body. The system includes an image capturing device, a radio frequency transceiver device, and a computing device. The image capturing device is configured to capture an image of a target creature. The radio frequency transceiver device is configured to transmit a radio signal to the target creature and receive a plurality of reflected signals from the target creature. The computing device includes an image tracking module, a creature feature value database, and a comparison module. The image tracking module is configured to track the target creature according to the captured image, and the comparison module is configured to compare the reflected signals with the creature feature value, to find out a registered identity of the target creature, so that the image tracking module keeps tracking the target creature. The present invention also provides a method for tracking a creature body.

Abstract: The embodiment of the disclosure provides a method for training a pattern enhancing model and an electronic device. The method includes: reading a first pattern with a defect via a pattern reader, and determining whether the pattern reader reads successfully; if a reading is successful, performing a pattern reconstruction operation based on pattern information of the read first pattern to obtain a second pattern; training the pattern enhancing model based on the first pattern and the second pattern as a training data set.

Abstract: An electronic device includes a first power input end, a second power input end, a detection circuit, and a power delivery controller. The first power input end is adapted for coupling to an alternating current adapter. The second power input end is adapted for coupling to a dual-role port device. The detection circuit is coupled to the first power input end and the second power input end. The power delivery controller is coupled to the detection circuit and configured to control the dual-role port device to switch from a source end to a sink end in response to the detection circuit detecting that the first power input end receives an adapter source voltage from the alternating current adapter and the second power input end bring to the dual-role port device.

Abstract: A charging and discharging circuit is provided, which includes a charging and discharging control circuit, a first connection port, a first switch circuit, a second switch circuit, a second connection port, a third switch circuit, a fourth switch circuit, and an identification logic circuit. The identification logic circuit determines a mode of the first connection port according to a first channel configuration signal of the first connection port, the charging and discharging control circuit switches the first switch circuit and the second switch circuit according to the mode of the first connection port, and the charging and discharging control circuit determines a mode of the second connection port according to a second channel configuration signal of the second connection port, so as to switch the third switch circuit and the fourth switch circuit.

Abstract: An antenna module includes two antenna units, two isolation members, and a grounding member. Each antenna unit consists of two feeding ends, two first radiators, and two second radiators. The isolating members are disposed between the first and second portions of each antenna unit. The grounding member is disposed beside the two antenna units and the two isolation members. A first slot is formed among each first radiator, the second radiator, and the grounding member. The two second radiators are connected to the third radiator. A third slot is formed between the second radiator and the second portion. The two antenna units are symmetric to the fourth slot in a mirrored manner, and the two first portions have widths gradually changing along an extending direction of the fourth position.

Abstract: The present disclosure discloses an electrical connector, including a connector body and an adjustable elastic piece assembly. The connector body includes a mounting surface. The adjustable elastic piece assembly includes a fixing plate and a grounding elastic piece. The fixing plate is arranged on the mounting surface of the connector body. The fixing plate includes a guide rail extending along a first direction. The guide rail has a plurality of limiting grooves, and the limiting grooves are arranged at intervals. The grounding elastic piece is arranged on the fixing plate along the first direction. The grounding elastic piece includes a fixed end and a movable end that are opposite to each other. The fixed end is fixed to the fixing plate. The movable end is slidably arranged in the guide rail, and is adapted to be positioned in one of the limiting grooves.

Abstract: An electronic device includes a metal back cover and an antenna module. The metal back cover includes a slot. The antenna module is located in the metal back cover. The antenna module includes a first radiator, second radiator, third radiator, fourth radiator, and fifth radiator. The first radiator has a feeding end. The second radiator connected to the first radiator has a contact portion which is connected to the metal back cover. The third radiator is connected to the second radiator and is located beside the first radiator. The third radiator has a first grounding terminal. The fourth radiator is connected to the second radiator and has a second grounding terminal. The fifth radiator is connected to the third radiator and the fourth radiator. Distances between the feeding end and the slot, the first grounding terminal and the slot, and the second grounding terminal and the slot all range from 3.5 mm to 10 mm.

Abstract: An electronic device includes first and second bodies and two antenna modules. The first body includes a first metal housing. The second body is pivotally connected to the first body through two metal hinges and includes a second metal housing, a third metal housing, and a non-metal housing. The non-metal housing is connected to the second metal housing and close to the first body. The two antenna modules are disposed between the second metal housing, the third metal housing, and the non-metal housing, and close to the two metal hinges respectively. Each antenna module includes a radiating part located between the coupling ground part and the corresponding metal hinge and a coupling ground part close to the first metal housing. The 10 coupling ground part, the first metal housing, the metal hinge, the second metal housing, and the third metal housing together form a loop path.

Abstract: A positioning structure includes a first bush, a positioning washer, a bolt, and a button. The first bush has a first and a second opening. The positioning washer is fixed in the first bush, and includes a positioning hole aligned to the first opening and multiple positioning elastic pieces circumferentially arranged in the positioning hole. The bolt is adapted to be inserted into the first bush from the first opening and passes through the positioning hole. At least one of the positioning elastic pieces is engaged with a thread of the bolt. The button is inserted into the first bush from the second opening and contacts the positioning elastic pieces. The button is adapted to slide toward the first opening to push the positioning elastic pieces to deform, so that the positioning elastic pieces are separated from the thread, and the bolt is loosened from the positioning washer.