Abstract: A multi-antenna system includes: a server; a first antenna group, provided on a base station and including multiple first antennas including a first representative antenna and a first non-representative antenna, the base station performing intra-group channel estimation to obtain and transmit to the server multiple first inner channel estimation coefficients between the first representative antenna and the first non-representative antenna, and serving a user device; and a reference device, communicating with the server and the first antennas, performing channel estimation between the reference device and the first representative antenna to obtain and transmit to the server multiple first outer channel estimation coefficients between the reference device and the first representative antenna. The server calculates a precoding matrix according to the first inner and first outer channel estimation coefficients, and the base station performs data transmission with the user device according to the precoding matrix.

Abstract: A display device having a display region and a peripheral region surrounding the display region is provided. The display device includes a first adhesion layer sandwiched between a display unit and a protective structure. The protective structure includes a first protective layer having a first length in a first direction. The protective structure also includes a second adhesion layer disposed on the first protective layer. The protective structure further includes a second protective layer disposed on the second adhesion layer, and the second protective layer has a second length in the first direction, wherein the difference between the first length and the second length is between 0 and 1 mm, and wherein the second protective layer is on the outermost side of the display device.

Abstract: An arrangement to guarantee boot up of a computer includes a control center microchip with BIOS boot block and BIOS program, and a flash memory divided into a first protected block, a main block, and a second protected block. In the computer, an embedded controller (EC) with stored modules is electrically connected to the flash memory and the control center microchip. The modules include a determining module to check that the code of the first protected block is identical with the code of the second protected block and a recovery module able to reinstate correct code from the second protected block into the first protected block if required. A method applied to the disclosed computer startup detection system is also disclosed.

Abstract: In one embodiment, an integrated circuit cell includes a first circuit component and a second circuit component. The first circuit component includes fin field-effect transistors (finFETs) formed in a high fin portion of the integrated circuit cell, the high fin portion of the integrated circuit including a plurality of fin structures arranged in rows. The second circuit component that includes finFETs formed in a less fin portion of the integrated circuit cell, the less fin portion of the integrated circuit including a lesser number of fin structures than the high fin portion of the integrated circuit cell.

Abstract: An imaging lens assembly includes a plurality of lens elements, wherein at least one of the lens elements is a dual molded lens element. The dual molded lens element includes a light transmitting portion and a light absorbing portion. The light transmitting portion includes an effective optical section and a first annular surface. The light absorbing portion is located on at least one surface of an object-side surface and an image-side surface of the dual molded lens element, wherein a plastic material and a color of the light absorbing portion are different from a plastic material and a color of the light transmitting portion, and the light absorbing portion includes an opening and a second annular surface. A step surface of the second annular surface is formed by the first annular surface and the second annular surface.

Abstract: An operation method of an electronic system includes the following steps. When a first communication module of the electronic device receives a call signal, a controller of an electronic device detects whether an expansion device is electrically connected to the electronic device. Based on a result of the controller detecting whether the expansion device is electrically connected to the electronic device, it is determined whether the electronic system performs sound amplification with a first speaker of the electronic device or performs playing with a second speaker of the expansion device.

Abstract: A contact lens includes a central region, an annular region and a peripheral region. The central region includes a central point of the contact lens. The annular region symmetrically surrounds the central region. The peripheral region symmetrically surrounds the annular region. The peripheral region includes at least one color pattern portion. The annular region includes at least one power of critical point.

Abstract: A communication device includes a first body, a second body, a first audio module, and a second audio module. The second body is rotatably connected to the first body. The first audio module is disposed on the first body. The second audio module is at least partially disposed on the first body. When the second body rotates relatively to the first body to be in a first state to switch the communication device to be in a first operation mode, at least a portion of the first audio module is turned on, and the second audio module is turned off. When the second body rotates relatively to the first body to be in a second state to switch the communication device to be in a second operation mode, the first audio module is turned off, and the second audio module is turned on.

Abstract: An electronic device connection system includes a main electronic device and a peripheral electronic device. The main electronic device includes a first housing, a first fixing member, and a first interface. The peripheral electronic device includes a second housing, a second fixing member, and a second interface. The first fixing member is coupled to the first housing. The first fixing member defines a first through hole passing through opposite ends of the first fixing member. The first interface is received through the first through hole. The second fixing member is coupled to the second housing. The second fixing member and the first fixing member are configured to plug into each other. The second fixing member defines a second through hole passing through opposite ends of the second fixing member. The second interface is received through the second through hole to plug with and electrically couple to the first interface.

Abstract: An electronic device includes a housing and a buffer component. The housing has a corner portion and two side edges adjacent to the corner portion. The buffer component is embedded in the corner portion and includes a strengthened layer and a buffer layer. The strengthened layer includes an arc-shaped side edge and an embedded portion. The embedded portion is embedded in the corner portion, such that the arc-shaped side edge is aligned with the two side edges. The strengthened layer is a strengthened material structure. The buffer layer is disposed between the strengthened layer and the housing, and the buffer layer is an elastic material structure.

Abstract: For a mapping application, a method for reporting a problem related to a map displayed by the mapping application is described. The method identifies a mode in which the mapping application is operating. The method identifies a set of types of problems to report based on the identified mode. The method displays, in a display area of the mapping application, a graphical user interface (GUI) page that includes a set of selectable user interface (UI) items that represent the identified set of types of problems.

Abstract: An imaging lens assembly includes a plurality of lens elements, wherein at least one of the lens elements is a dual molded lens element. The dual molded lens element includes a light transmitting portion and a light absorbing portion. The light transmitting portion includes an effective optical section and a first annular surface. The light absorbing portion is located on at least one surface of an object-side surface and an image-side surface of the dual molded lens element, wherein a plastic material and a color of the light absorbing portion are different from a plastic material and a color of the light transmitting portion, and the light absorbing portion includes an opening and a second annular surface. A step surface of the second annular surface is formed by the first annular surface and the second annular surface.

Abstract: A contact lens includes a central region, an annular region and a peripheral region. The central region includes a central point of the contact lens. The annular region symmetrically surrounds the central region. The peripheral region symmetrically surrounds the annular region. The peripheral region includes at least one color pattern portion. The annular region includes at least one power of critical point.

Abstract: An electronic device includes a housing and a corner structure. The housing is provided with a corner portion and two side edges adjacent to the corner portion. The housing includes an outer surface, an inner surface parallel to the outer surface, and a side surface located at the corner portion and respectively connected to the outer surface and the inner surface, wherein the side surface is a hierarchical curved surface. The corner structure is embedded in the corner portion. The corner structure is provided with an arc-shaped side edge that is aligned with the adjacent two side edges, one side of the corner structure, which is opposite to the arc-shaped side edge, is fitted to the side surface of the housing, and the corner structure is a reinforced material structure.

Abstract: An image processing method includes steps of measuring a plurality of first display characteristics of a display panel under a plurality of input frequencies; determining a plurality of first compensation parameters corresponding to a plurality of first reference input frequencies according to a plurality of first differences between a first target display characteristic and a plurality of first reference display characteristics; using the first compensation parameters to adjust the first display characteristics of the display panel under the input frequencies; after adjusting the first display characteristics, measuring a plurality of second display characteristics of the display panel under the input frequencies; and determining a plurality of second compensation parameters corresponding to a plurality of second reference input frequencies according to a plurality of second differences between a second target display characteristic and a plurality of second reference display characteristics.

Abstract: An imaging lens assembly includes a plurality of lens elements, wherein at least one of the lens elements is a dual molded lens element. The dual molded lens element includes a light transmitting portion and a light absorbing portion. The light transmitting portion includes an effective optical section. The light absorbing portion is located on at least one surface of an object-side surface and an image-side surface of the dual molded lens element, wherein a plastic material and a color of the light absorbing portion are different from a plastic material and a color of the light transmitting portion, and the light absorbing portion includes an opening. The opening is non-circular and disposed correspondingly to the effective optical section.

Abstract: The present disclosure provides a resource allocation method. The resource allocation method includes the following steps: selecting multiple first selected virtual nodes according to multiple virtual pheromonal trails on multiple virtual edges, in which the first selected virtual nodes forms at least one virtual tour, and the virtual tour includes multiple first virtual edges; updating the virtual pheromonal trails on the virtual edges according to virtual distances corresponding to the first virtual edges of the virtual tour; selecting multiple second selected virtual nodes according to the updated virtual pheromonal trails on the virtual edges, in which the second selected virtual nodes form at least one resulting virtual tour; allocating the resource blocks to selected user pairs according to the resulting virtual tour.

Abstract: A controller of a DC brushless motor and a control method thereof are disclosed. The controller is connected to a commutation circuit including three voltage dividers and three comparators. Each voltage divider includes a first resistor and a second resistor connected in series. Each first resistor is connected to a terminal voltage of three-phase coils of the DC brushless motor. Each comparator includes a positive input end connected to a node connected to the first resistor and the second resistor of the corresponding voltage divider and a negative input end connected to the node of the adjacent voltage divider. The controller includes a control circuit and three bias resistors respectively connected to a voltage source and the node of the corresponding voltage divider. The control circuit detects a counter EMF signal of each phase coil and controls the voltage source to supply an offset voltage to the corresponding node.

Abstract: An ESD protection device including a PNP transistor connected to an input pad, a diode connected to the PNP transistor and connected to an output pad, and an NMOS transistor connected to the PNP transistor and the output pad, wherein the diode, PNP transistor, and NMOS transistor are configured to route different levels of an electrostatic discharge (ESD) current pulse from the input pad to the output pad.

Abstract: An integrated circuit structure includes a substrate having a front side and a back side, the back side being an opposite side of the substrate from the front side. A first power rail extends in a first direction, is embedded in the front side of the substrate, and provides a first supply voltage. A second power rail provides a second supply voltage different from the first supply voltage, extends in the first direction, is embedded in the front side of the substrate, and is separated from the first power rail in a second direction different from the first direction. A first device is positioned between the first power rail and the second power rail and located on the front side of the substrate. A first via structure extends to the back side of the substrate and is electrically coupled to the second power rail.