Abstract: A wideband antenna system includes a first metal radiation portion, having a coupling distance with a second metal radiation portion; a first feeding contact and a second feeding contact, electrically connected to the first metal radiation portion and the second metal radiation portion respectively, and close to the coupling distance; a first ground contact, electrically connected to the second metal radiation portion; a second ground contact, electrically connected to the first metal radiation portion; an impedance tuner, electrically connected to the first feeding contact, the second feeding contact, the first ground contact, the second ground contact, and a radio frequency signal source, to switch the first metal radiation portion and the second metal radiation portion; an aperture contact, electrically connected to the first metal radiation portion; and an aperture tuner, electrically connected to the aperture contact.

Abstract: A method for reducing a color edge phenomenon of a display panel is provided. The method is applicable to a display panel including a plurality of pixel units. The method includes: performing pixel adjustment on the pixel units at edges of the display panel. Each pixel unit includes at least three sub-pixels: a first sub-pixel, a second sub-pixel, and a third sub-pixel. By adjusting positions, areas, or brightness of the sub-pixels, the color edge phenomenon of the display panel is effectively reduced or avoided.

Abstract: An ultra-wideband antenna device includes a radiation metal body, a first slotted hole, a second slotted hole, a third slotted hole, a fourth slotted hole, a ground point, and a feeding source. The radiation metal body includes a first side edge and a second side edge opposite to each other and a third side edge and a fourth side edge opposite to each other, the first slotted hole extends inward from the first side edge, the second slotted hole extends inward from the second side edge, the third slotted hole extends inward from the third side edge, and the fourth slotted hole extends inward from the fourth side edge. The ground point is located at a middle position of the radiation metal body, and the feeding source is located on the radiation metal body and away from the middle position.

Abstract: An electronic device and a battery management method thereof are provided. The method includes the following. A battery learning enable command is received to execute a battery learning operation. During an execution period of the battery learning operation, usage record data of a battery module is analyzed to obtain usage situation information. An appropriate value of a charging limit capacity is determined based on the usage situation information.

Abstract: An electronic device and a lens control method of optical image stabilization thereof are provided. The method is adapted to the electronic device. The electronic device includes a lens, and the method includes the following steps. An accumulated deviation angle of the electronic device is obtained according to a driving signal. A compensation angle is determined according to the accumulated deviation angle of the electronic device. The lens is controlled to move according to compensation angle.

Abstract: An electronic device and a method for testing an image stabilization function thereof are provided. The method is adapted for the electronic device including an image capturing module, and includes the following. While the electronic device is in a static state, a static image of a test pattern is captured through the image capturing module. While the electronic device is in the static state, a vibration simulation signal is provided to the image capturing module. During a period of providing the vibration simulation signal to the image capturing module, a vibration compensation image of the test pattern is captured using an Optical Image Stabilization (OIS) function through the image capturing module. According to a pattern size of the test pattern in the static image and a pattern size of the test pattern in the vibration compensation image, a test result of the OIS function is generated.

Abstract: A printed circuit board is provided. The printed circuit board includes a substrate, an electrically conductive pattern layer, and a thermally conductive ink layer. The substrate includes a first surface. The electrically conductive pattern layer is located on the first surface and includes a contact portion and a wire portion. The thermally conductive ink layer covers the wire portion and exposes the contact portion. The thermally conductive ink layer includes a thermally conductive powder and a colloidal adhesive, where a weight percentage of the thermally conductive powder is less than 10%, and a weight percentage of the colloidal adhesive is higher than 80%. An electronic device including the printed circuit board is further provided.

Abstract: The disclosure provides a power management method. The power management method is applicable to an electronic device. The electronic device is electrically coupled to an adapter, and includes a system and a battery. The adapter has a feed power. The battery has a discharge power. The power management method of the disclosure includes: reading a power value of the battery; determining a state of the system; and discharging power to the system, when the system is in a power-on state and the power value is greater than a charging stopping value, by using the battery, and controlling, according to the discharge power and the feed power, the adapter to selectively supply power to the system. The disclosure further provides an electronic device using the power management method.

Abstract: A cavity-backed slot antenna system provided in this disclosure is installed in a housing of an electronic device and includes a metal cavity, a supporting element, an antenna device, a conductive post, and a coupling metal part. The metal cavity is in the housing and includes an opening and a closed surface opposite to each other. A slot is on the closed surface. The supporting element is in the metal cavity. The antenna device is in the metal cavity and on the supporting element, to expose one side surface of the antenna device. The antenna device includes a feed source. The conductive post penetrates the antenna device and connects to the metal cavity. The coupling metal part is in the housing and close to the opening of the metal cavity, so that the coupling metal part is close to and corresponds to the feed source of the antenna device.

Abstract: An electronic device includes a battery module, a power supply, a power controller, and a processor. The power controller obtains an initial battery capacity of the battery module and a current time when the power supply is connected to an external power supply. The processor sets a preset target battery capacity and a charging completion time, obtains a charging battery capacity according to the preset target battery capacity, the initial battery capacity and a charging time interval, calculates a calculated battery capacity-time-ratio according to the charging battery capacity and the charging time interval, converts the calculated battery capacity-time-ratio into a charging battery capacity, and transmits it to the power controller. The power controller converts the supplied power to a charging voltage or a charging current correspondingly according to the charging battery capacity, to charge the battery module to the preset target battery capacity by a charging end time.

Abstract: An interface card assembly adapted for fixing an M.2 interface card to a circuit board body with an M.2 connector is provided. The M.2 interface card includes a connecting end and an end. The interface card assembly includes a heat dissipation plate and a fastener. The heat dissipation plate is disposed at a position adjacent to the M.2 connector, and the heat dissipation plate includes a hole. The fastener is detachably disposed in the hole. The fastener includes a main body and a cantilever, and a clamping part is disposed between the main body and the cantilever. When the M.2 interface card is inserted into the M.2 connector through the connecting end, the fastener moves relative to the heat dissipation plate at the end, so that the M.2 interface card extends into the clamping part and is clamped between the main body and the cantilever.

Abstract: An electronic assembly includes a substrate, a chip configured on the substrate, a cover component configured on the chip, a capacitance element configured on the substrate, and a sealing structure surrounding the chip and sealing a gap between the cover component and the substrate. The sealing structure includes an insulating gel encapsulating the capacitance element. In addition, a manufacturing method of the electronic assembly is also provided.

Abstract: A method and apparatus are disclosed from the perspective of a network in a wireless communication system. In one embodiment, the method includes the network configuring a User Equipment (UE) with cross-carrier scheduling, wherein the network transmits Physical Downlink Control Channel (PDCCH) on a first cell scheduling a second cell. The method further includes the network configuring the UE with PDCCH repetition on two search spaces of the first cell. In addition, the method includes the network being allowed to configure the UE with PDCCH repetition on two search spaces of the second cell only if two search spaces of the first cell, having same search space identities as the two search spaces of the second cell, have been configured with PDCCH repetition.

Abstract: A foldable electronic device includes a first body, a second body, a pivot and a key module. The pivot is pivotally connected between the first body and the second body. The first body and the second body is configured to rotate relatively to each other through the pivot. The key module includes a bendable substrate and a sensor embedded in the bendable substrate. The bendable substrate is connected between the first body and the second body and covers an outer side of the pivot. The sensor generates a sensing signal in response to a press of a user upon the bendable substrate.

Abstract: A reading method and a reading device for a two-dimensional code. The method includes: capturing a two-dimensional code image through an image capturing device; detecting an outer frame and a position mark of a two-dimensional code in a skewed state in the two-dimensional code image; restoring the two-dimensional code in the skewed state to a default state; and performing a default operation according to the two-dimensional code in the default state.

Abstract: The disclosure provides a low band antenna device, arranged on a folding screen electronic device, and the folding screen electronic device includes a first casing and a second casing that are foldable. A first antenna and a second antenna are located on the first casing and separated, and a third antenna and a fourth antenna are located on the second casing and separated. The first antenna corresponds to the fourth antenna, and the second antenna corresponds to the third antenna. When the folding screen electronic device is in an open mode, the first through forth antennas all maintain a normal working state. When the folding screen electronic device is in a close mode, one of the first antenna and the fourth antenna and one of the second antenna and the third antenna maintain the normal working state, and the remaining antennas are in a detuned and disabled state.

Abstract: An audio visualization method applied to an electronic device with a screen and a function of a silent mode is provided. The audio visualization method includes: determining whether the electronic device executes an audio/video program or not, where when the audio/video program is executed, an audio effect signal is generated; converting the audio effect signal into a two-channel signal and a multi-channel signal when the electronic device executes the audio/video program, where a channel count of the two-channel signal is less than that of the multi-channel signal; generating sound data according to the multi-channel signal when the electronic device is set to the silent mode; and generating an icon according to the sound data and presenting the icon on the screen. The disclosure also provides an audio visualization system.

Abstract: A connector assembly includes a male connector and a female connector. The male connector includes N pins with different lengths, and the N pins respectively correspond to N different transmission signals. The female connector includes N signal layers configured to transmit the N different transmission respectively, and each of the N signal layers includes N pass gates. One of the N pass gates of each of the N signal layers is configured to be coupled to a corresponding one of the N pins.

Abstract: A multiplexer includes a first circuit board, a second circuit board, and a third circuit board. The first circuit board includes a first metal layer, a first substrate layer, and a second metal layer sequentially stacked along a first direction. The second circuit board includes a third metal layer, a second substrate layer, and a fourth metal layer sequentially stacked along the first direction. The third circuit board includes a fifth metal layer, a third substrate layer, and a sixth metal layer sequentially stacked along the first direction. The second and third metal layer have same wiring structure, and the second metal layer connects to the third metal layer to form a first signal transmission path structure and a filter structure. The fourth and fifth metal layer have same wiring structure, and the fourth metal layer connects to the fifth metal layer to form a second signal transmission path structure.